Advance SC901 ST parts list and diagrams
Every part number in Advance's SC901 ST parts list, with the manual's drawings, troubleshooting, maintenance and specs from the instructions for use. Each part number links to that part in our store.
Complete list: every parts line in Advance's SC901 ST Parts List, form 56042675 (3/2019, revised 10/2020, REV C), for the SC901 ST 28D, 34D and 32C scrubber-dryers and the 28D and 34D NEXSYS models. Checked .
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- Cleaning path
- 28D: 28 in (71.1 cm); 34D: 34 in (86.3 cm); 32C: 31 in (78.7 cm)
- Brushes
- 28D: two 14 in (35.5 cm) discs; 34D: two 17 in (43.1 cm) discs; 32C: two cylindrical, 5.5 in (13.9 cm) across and 31 in (78.7 cm) long
- Brush speed
- 28D and 34D: 250 rpm; 32C: 900 rpm
- Batteries
- 36 V, 310 Ah
- Solution tank
- 30 gal (113.6 L)
Wear parts most SC901 ST owners reorder
Advance's recommended spare parts page lists these as wear parts: motor brushes, belts, squeegee blade kits and bristle skirt kits. They are on this parts list.
Squeegee Kit-Blade-Gum 28” & 34” Disc Models
$46.55/EASqueegee Kit-Blade-Linatex 32” Cylindrical Model
$113.44/EASqueegee Kit-Blade-Pu
$147.57/EAKit-Bristle Skirt 28 (28” models / Includes two skirts and mounting hardware)
$167.59/EAKit-Bristle Skirt 34 (34” models / Includes two skirts and mounting hardware)
$187.09/EACarbon Brush
$90.70/EABrush Spring
$16.09/EACarbon Brush
$48.12/EAVacuum Motor Brush Kit
$17.46/EABelt-Auto Tension
$13.07/EA
Source: Advance SC901 ST Parts List, form 56042675 (3/2019, rev. C), page 29. SES ref PF-WKQE-5Z7X
Your machine
How to tell which you have
- Model number: the Model Number (also called the Part Number) and the Serial Number are on the nameplate in the battery compartment. The models are 56115530 (SC901 ST-28D), 56115531 (SC901 ST-34D) and 56115532 (SC901 ST-32C).
- Disc or cylindrical: the 28D has two 14 in (35.5 cm) disc brushes, the 34D two 17 in (43.1 cm) disc brushes and the 32C two cylindrical brushes, 5.5 in (13.9 cm) across and 31 in (78.7 cm) long.
- NEXSYS: Advance's parts list also covers the 28D NEXSYS (56115534) and 34D NEXSYS (56115564). Its operator manual lists only the three models above, and the parts list marks one line as NEXSYS only.
- EcoFlex: the detergent module on the control panel is on EcoFlex models only. The parts list marks only the Decal System lines as STD or EcoFlex models.
How to read this list
Our part numbers are the Advance number with AD in front, so Advance 56115334 is AD56115334. Where Advance prints a letter at the end of a number (for example 54647A), we keep it. Each line shows the item number on the drawing. Blue part numbers open the part page. Lines marked Call to confirm part are not listed online yet; call 800-440-6723 and we will source them. Lines marked No number printed are parts Advance prints without a part number. Its ordering instructions say to order the service kit that contains the part, and the note on the line names that kit. Prices were current on ; your cart always shows the current price. Have your machine serial number ready when you call.
Advance SC901 ST chassis system parts
The chassis weldment, transaxle, drive wheels, swivel casters and grounding chain. Many lines are hardware that comes only in a service kit. Manual pages 2, list 3.
Tap a part number to see that part.

| Item | Part number | Qty | Description and notes | Price |
|---|---|---|---|---|
| 1 | Not sold separatelyAdvance no number printed | 1 | Wsh-Flt SAE Ss 1/4Kit part only: order kit K1, Hardware-Chassis-Kit (56115390) or K4, Chain-Grounding-Kit (56115393). | Not sold separately. Order Hardware-Chassis-Kit (AD56115390) |
| 2 | Not sold separatelyAdvance no number printed | 12 | Wsh, Flt Ss 8mmKit part only: order kit K1, Hardware-Chassis-Kit (56115390) or K2, Castor Wheel-Kit (56115391). | Not sold separately. Order Hardware-Chassis-Kit (AD56115390) |
| 3 | Not sold separatelyAdvance no number printed | 16 | Scr Hex Loc Ss M8-1.25 x 20mmKit part only: order kit K1, Hardware-Chassis-Kit (56115390) or K2, Castor Wheel-Kit (56115391). | Not sold separately. Order Hardware-Chassis-Kit (AD56115390) |
| 4 | Not sold separatelyAdvance no number printed | 4 | Nut Hex Ss M8-1.25Kit part only: order kit K1, Hardware-Chassis-Kit (56115390). | Not sold separately. Order Hardware-Chassis-Kit (AD56115390) |
| 5 | Not sold separatelyAdvance no number printed | 2 | Scr, Hex Thd Form 1/4-20 x .50Kit part only: order kit K1, Hardware-Chassis-Kit (56115390) or K4, Chain-Grounding-Kit (56115393). | Not sold separately. Order Hardware-Chassis-Kit (AD56115390) |
| 6 | Not sold separatelyAdvance no number printed | 6 | Nut- Lug 1/2-20Kit part only: order kit K1, Hardware-Chassis-Kit (56115390) or K3, Wheel-Drive-Kit (56115392). | Not sold separately. Order Hardware-Chassis-Kit (AD56115390) |
| 7 | AD56115240Advance 56115240 | 1 | Chassis Weldment | $512.90/EA |
| 8 | Not sold separatelyAdvance no number printed | 2 | Caster-Swivel-5.00 x 2.00Kit part only: order kit K2, Castor Wheel-Kit (56115391). | Not sold separately. Order Castor Wheel-Kit (AD56115391) |
| 9 | Not sold separatelyAdvance no number printed | 2 | Wheel-Drive-13 Inch DiameterKit part only: order kit K3, Wheel-Drive-Kit (56115392). | Not sold separately. Order Wheel-Drive-Kit (AD56115392) |
| 10 | AD56115378Advance 56115378 | 1 | Transaxle-36 Volts M1 | $2,471.78/EA |
| – | AD56315676Advance 56315676 | 1 | MotorNot shown on the drawing. | $1,526.96/EA |
| – | AD56315677Advance 56315677 | 4 | Carbon BrushNot shown on the drawing. | $48.12/EA |
| – | AD56315678Advance 56315678 | 2 | Neoprene Mounting SleeveNot shown on the drawing. | $27.19/EA |
| – | AD56380164Advance 56380164 | 1 | Kit-CouplingNot shown on the drawing. | $40.81/EA |
| – | AD56381779Advance 56381779 | 1 | Transaxle Service KitNot shown on the drawing. | Call to confirm part: 800-440-6723Call 800-440-6723 |
| 11 | AD56315202Advance 56315202 | 2 | Plate, Transaxle Mount | $11.69/EA |
| 12 | Not sold separatelyAdvance no number printed | 1 | ChainKit part only: order kit K4, Chain-Grounding-Kit (56115393). | Not sold separately. Order Chain-Grounding-Kit (AD56115393) |
| – | AD56115390Advance 56115390 | 1 | Hardware-Chassis-KitService kit K1. Contains items 1, 2, 3, 4, 5, 6. | $24.72/EA |
| – | AD56115391Advance 56115391 | 1 | Castor Wheel-KitService kit K2. Contains items 2, 3, 8. | $414.70/EA |
| – | AD56115392Advance 56115392 | 1 | Wheel-Drive-KitService kit K3. Contains items 6, 9. | $414.70/EA |
| – | AD56115393Advance 56115393 | 1 | Chain-Grounding-KitService kit K4. Contains items 1, 5, 12. | $20.48/EA |
Advance SC901 ST control system parts
The operator handle, drive paddle, key switch, battery hour gauge, potentiometers and control knob. Manual pages 4, list 5.
Tap a part number to see that part.

| Item | Part number | Qty | Description and notes | Price |
|---|---|---|---|---|
| 1 | Not sold separatelyAdvance no number printed | 5 | Scr-Hex M8-1.25 x 50mmKit part only: order kit K1, Hardware-Control-Kit (56115400). | Not sold separately. Order Hardware-Control-Kit (AD56115400) |
| 2 | Not sold separatelyAdvance no number printed | 5 | Wsh-Flt Ss .344 x 1.00 x .109Kit part only: order kit K1, Hardware-Control-Kit (56115400). | Not sold separately. Order Hardware-Control-Kit (AD56115400) |
| 3 | AD57994AAdvance 57994A | 4 | Screw, M6 - 1 x 20Revised or new since the last update. | $13.76/EA |
| 4 | AD56002919Advance 56002919 | 4 | Wsh Flt Std Ss 10 | $11.69/EA |
| 5 | Not sold separatelyAdvance no number printed | 2 | Scr-Flt-Torx-Plastite-6-19 x .50Kit part only: order kit K2, Paddle Handle Kit-SC901 (56115528). | Not sold separately. Order Paddle Handle Kit-SC901 (AD56115528) |
| 6 | Not sold separatelyAdvance no number printed | 4 | Scr-Pan-Torx-Plastite-6-19 x .38Kit part only: order kit K2, Paddle Handle Kit-SC901 (56115528). | Not sold separately. Order Paddle Handle Kit-SC901 (AD56115528) |
| 8 | AD56115296Advance 56115296 | 1 | Gauge-Battery-Hour (P2) | $105.15/EA |
| 8 | AD56115582Advance 56115582 | 1 | Gauge-Battery-Hour (NEXSYS ONLY) (P2)Fits SC901 ST-28D NEXSYS, SC901 ST-34D NEXSYS. Revised or new since the last update. | $149.33/EA |
| 9 | Not sold separatelyAdvance no number printed | 1 | Handle-Front-PaddleKit part only: order kit K2, Paddle Handle Kit-SC901 (56115528). | Not sold separately. Order Paddle Handle Kit-SC901 (AD56115528) |
| 10 | AD56115513Advance 56115513 | 1 | Harness-Handle-PaddleAlso in kit K2, Paddle Handle Kit-SC901 (56115528). | $86.55/EA |
| 11 | AD56115514Advance 56115514 | 1 | Potentiometer Assembly-100k (R1)Also in kit K2, Paddle Handle Kit-SC901 (56115528). | $49.30/EA |
| 12 | AD56115515Advance 56115515 | 1 | Potentiometer Assembly-5k (R2)Also in kit K2, Paddle Handle Kit-SC901 (56115528). | $54.26/EA |
| 13 | AD56115512Advance 56115512 | 1 | Handle-Adapter-PaddleRevised or new since the last update. | $61.13/EA |
| 14 | Not sold separatelyAdvance no number printed | 4 | Clamp Cable .375 E00129Kit part only: order kit K2, Paddle Handle Kit-SC901 (56115528). | Not sold separately. Order Paddle Handle Kit-SC901 (AD56115528) |
| 15 | Not sold separatelyAdvance no number printed | 1 | ScrewKit part only: order kit K2, Paddle Handle Kit-SC901 (56115528). | Not sold separately. Order Paddle Handle Kit-SC901 (AD56115528) |
| 16 | AD1462888000Advance 1462888000 | 1 | Switch Key With Cap (S1)Also in kit K2, Paddle Handle Kit-SC901 (56115528). | $68.96/EA |
| – | AD1462887000Advance 1462887000 | 1 | Key 2 PCSAlso in kit K2, Paddle Handle Kit-SC901 (56115528). Not shown on the drawing. | $51.38/EA |
| 17 | Not sold separatelyAdvance no number printed | 1 | Handle BarKit part only: order kit K2, Paddle Handle Kit-SC901 (56115528). | Not sold separately. Order Paddle Handle Kit-SC901 (AD56115528) |
| 18 | Not sold separatelyAdvance no number printed | 1 | Shaft Levers ConnectionKit part only: order kit K2, Paddle Handle Kit-SC901 (56115528). | Not sold separately. Order Paddle Handle Kit-SC901 (AD56115528) |
| 19 | Not sold separatelyAdvance no number printed | 1 | Rod PotentiometerKit part only: order kit K2, Paddle Handle Kit-SC901 (56115528). | Not sold separately. Order Paddle Handle Kit-SC901 (AD56115528) |
| 20 | Not sold separatelyAdvance no number printed | 2 | Support for Lever ConnectionKit part only: order kit K2, Paddle Handle Kit-SC901 (56115528). | Not sold separately. Order Paddle Handle Kit-SC901 (AD56115528) |
| 21 | Not sold separatelyAdvance no number printed | 1 | Lever Rt Driving AssembledKit part only: order kit K2, Paddle Handle Kit-SC901 (56115528). | Not sold separately. Order Paddle Handle Kit-SC901 (AD56115528) |
| 22 | Not sold separatelyAdvance no number printed | 1 | Lever Lt Driving AssembledKit part only: order kit K2, Paddle Handle Kit-SC901 (56115528). | Not sold separately. Order Paddle Handle Kit-SC901 (AD56115528) |
| 23 | Not sold separatelyAdvance no number printed | 1 | Knob Control Encore 2426Kit part only: order kit K2, Paddle Handle Kit-SC901 (56115528). | Not sold separately. Order Paddle Handle Kit-SC901 (AD56115528) |
| – | AD56115400Advance 56115400 | 1 | Hardware-Control-KitService kit K1. Contains items 1, 2. | $8.80/EA |
| – | AD56115528Advance 56115528 | 1 | Paddle Handle Kit-SC901Service kit K2. Contains items 5, 6, 9, 10, 11, 12, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23 and Key 2 PCS (not shown on the drawing). | $392.98/EA |
Advance SC901 ST decal system parts
The decals and labels on the machine. Manual pages 6, list 7.
Tap a part number to see that part.

| Item | Part number | Qty | Description and notes | Price |
|---|---|---|---|---|
| 1 | AD56014601Advance 56014601 | 1 | Decal, Caution | $43.68/EA |
| 2 | AD56016324Advance 56016324 | 1 | Decal, Charger | $18.96/EA |
| 3 | AD56115469Advance 56115469 | 1 | Decal-Circuit Breaker | $4.27/EA |
| 4 | AD56115518Advance 56115518 | 2 | Decal-SC901 (STD Models) | $5.76/EA |
| 4 | AD56115519Advance 56115519 | 2 | Decal-SC901-EcoFlex (EcoFlex Models) | $5.76/EA |
| 5 | AD56115518Advance 56115518 | 1 | Decal-SC901-Advance | $5.76/EA |
| 6 | AD56115461Advance 56115461 | 1 | Decal-Battery Watering (only used on package 56115559) | $11.69/EA |
| 7 | AD71362AAdvance 71362A | 1 | Label, NFSI | $13.07/EA |
| 8 | AD56394259Advance 56394259 | 1 | Decal-Prop 65 | $4.39/EA |
Advance SC901 ST detergent kit parts
The detergent module, chemical pump, cartridge, hoses and decal for the EcoFlex detergent system. Manual pages 8, list 9.
Tap a part number to see that part.

| Item | Part number | Qty | Description and notes | Price |
|---|---|---|---|---|
| 1 | AD56002098Advance 56002098 | 1 | Wsh, Flt SAE 1/4 | $11.33/EA |
| 2 | AD56003970Advance 56003970 | 2 | Scr, M3 x 7 Self Thrd Torx Plas | $5.91/EA |
| 3 | AD56003196Advance 56003196 | 4 | Scr, Pan Phil Plastite 6-18 x .38 | $4.27/EA |
| 4 | AD56003627Advance 56003627 | 1 | Scr-Pan Phil M6-1 x 16mm | $12.85/EA |
| 5 | AD56104189Advance 56104189 | 1 | Insert-Dry Break | $5.91/EA |
| 6 | AD56104408Advance 56104408 | 1 | Chemical Bottle Assembly (Detergent Cartridge) | $82.53/EA |
| 7 | AD56111511Advance 56111511 | 1 | Hose, Chem. Resistant | $54.26/EA |
| 8 | AD56112126Advance 56112126 | 1 | Bracket-Pump Mount | $33.79/EA |
| 9 | AD56115347Advance 56115347 | 1 | Cover-Detergent Module | $16.09/EA |
| 10 | AD56115359Advance 56115359 | 2 | Knob-1.25 x .63 | $23.35/EA |
| 11 | AD56115363Advance 56115363 | 1 | Module-Detergent | $473.09/EA |
| 12 | AD56115376Advance 56115376 | 1 | Gasket-Detergent Cover | $8.80/EA |
| 13 | AD56115382Advance 56115382 | 1 | Decal-Detergent Module | $7.29/EA |
| 14 | AD56314983Advance 56314983 | 1 | Tee Assembly | $11.69/EA |
| 15 | AD56315241Advance 56315241 | 1 | Pump, Chemical | $283.67/EA |
| 16 | AD9100001512Advance 9100001512 | 1 | Cap, Plastic F Chemical Tank | $7.29/EA |
| 17 | AD56315523Advance 56315523 | 1 | Cap, Dry Break 1/8 Barb | $32.42/EA |
| 18 | AD56315524Advance 56315524 | 1 | Hose, Chem Resistant, 7.50 | $10.30/EA |
| 19 | AD56478246Advance 56478246 | 1 | Tie, Cable | $11.69/EA |
| 20 | AD71489AAdvance 71489A | 1 | Label, Chemical Settings | $11.69/EA |
| 21 | AD56002006Advance 56002006 | 4 | Wsh, Flt SAE #6 | $11.69/EA |
Advance SC901 ST electrical system parts
Harnesses, cables, fuse, circuit breakers, contactors, relay, speed controller and hardware. Manual pages 10, list 11.
Tap a part number to see that part.

| Item | Part number | Qty | Description and notes | Price |
|---|---|---|---|---|
| 1 | Not sold separatelyAdvance no number printed | 1 | Scr-Hex 1/4-20 x .38Kit part only: order kit K1, Electrical Hardware Kit (56115403). | Not sold separately. Order Electrical Hardware Kit (AD56115403) |
| 2 | Not sold separatelyAdvance no number printed | 2 | Nut, Hex W/ Shprf 1/4-20Kit part only: order kit K1, Electrical Hardware Kit (56115403). | Not sold separately. Order Electrical Hardware Kit (AD56115403) |
| 3 | Not sold separatelyAdvance no number printed | 2 | Scr-Hex Thd To Hd M6-1 x 30mmKit part only: order kit K1, Electrical Hardware Kit (56115403). | Not sold separately. Order Electrical Hardware Kit (AD56115403) |
| 4 | Not sold separatelyAdvance no number printed | 4 | Scr Soc Ss M6-1x14mmKit part only: order kit K1, Electrical Hardware Kit (56115403). | Not sold separately. Order Electrical Hardware Kit (AD56115403) |
| 5 | Not sold separatelyAdvance no number printed | 2 | Scr-Button Soc Ss M4-0.7 x 12Kit part only: order kit K1, Electrical Hardware Kit (56115403). | Not sold separately. Order Electrical Hardware Kit (AD56115403) |
| 6 | Not sold separatelyAdvance no number printed | 2 | Scr-Button Soc Ss M4-0.7 x 20Kit part only: order kit K1, Electrical Hardware Kit (56115403). | Not sold separately. Order Electrical Hardware Kit (AD56115403) |
| 7 | Not sold separatelyAdvance no number printed | 6 | Scr-Hex Flange Ss M5-.8 x 12Kit part only: order kit K1, Electrical Hardware Kit (56115403). | Not sold separately. Order Electrical Hardware Kit (AD56115403) |
| 8 | AD56115255Advance 56115255 | 1 | Cover-Electrical-Black | $71.84/EA |
| 9 | AD56115278Advance 56115278 | 1 | HarnessNot shown on the drawing. | $538.62/EA |
| 10 | AD56115341Advance 56115341 | 1 | Gasket-Circuit Breaker | $8.80/EA |
| 11 | AD56115349Advance 56115349 | 1 | Cable Battery | $28.79/EA |
| 12 | AD56115356Advance 56115356 | 1 | Harness-Battery Machine | $107.69/EA |
| 13 | AD56115357Advance 56115357 | 1 | Harness-Battery Power | $103.43/EA |
| 14 | AD56115385Advance 56115385 | 1 | Breaker-Circuit-2.5 Amp (CB5) | $21.85/EA |
| 15 | AD56115389Advance 56115389 | 1 | Panel-Electrical | $61.27/EA |
| 16 | AD56115432Advance 56115432 | 1 | Fuse-150 Amp (F1) | $18.96/EA |
| 17 | AD56115433Advance 56115433 | 1 | Holder-Fuse | $13.07/EA |
| 18 | AD56115434Advance 56115434 | 1 | Boot-Fuse Holder | $7.29/EA |
| 19 | AD56115441Advance 56115441 | 1 | Diode Assy-36v-Tvs | $24.72/EA |
| 20 | AD56115516Advance 56115516 | 1 | Controller-Speed (P1) | $317.58/EA |
| 21 | AD56116611Advance 56116611 | 5 | Cable Tie-Mount | $8.80/EA |
| 22 | AD56111972Advance 56111972 | 1 | Clip-Connector | $6.60/EA |
| 23 | AD56389265Advance 56389265 | 2 | Rectifier Assy | $31.05/EA |
| 24 | AD56395450Advance 56395450 | 1 | Contactor 36v (K2) | $95.04/EA |
| 25 | AD56395455Advance 56395455 | 1 | Contactor 36v, 100 Amp (K3) | $52.74/EA |
| 26 | AD56413822Advance 56413822 | 1 | Circuit Breaker, 20 Amp (CB4) | $30.52/EA |
| 27 | AD56469858Advance 56469858 | 1 | Electrical Mount | $13.07/EA |
| 28 | AD56478246Advance 56478246 | 4 | Tie, Cable | $11.69/EA |
| 29 | AD56315256Advance 56315256 | 3 | Circuit Breaker (CB1,CB2,CB3)-30 Amp | $13.07/EA |
| 30 | AD56510285Advance 56510285 | 1 | Bus Bar-Contactor | $13.07/EA |
| 31 | AD40172AAdvance 40172A | 4 | Cable, Battery | $23.35/EA |
| 32 | AD40892AAdvance 40892A | 1 | Relay Dpdt 36vdc (K1) | $82.06/EA |
| 33 | Not sold separatelyAdvance no number printed | 1 | Stud, 1/4-20Kit part only: order kit K1, Electrical Hardware Kit (56115403). | Not sold separately. Order Electrical Hardware Kit (AD56115403) |
| 34 | Not sold separatelyAdvance no number printed | 2 | Wsh Flt Ss 6 mmKit part only: order kit K1, Electrical Hardware Kit (56115403). | Not sold separately. Order Electrical Hardware Kit (AD56115403) |
| – | AD56115403Advance 56115403 | 1 | Electrical Hardware KitService kit K1. Contains items 1, 2, 3, 4, 5, 6, 7, 33, 34. | $27.75/EA |
Advance SC901 ST on board charger assembly parts
The onboard charger, its bracket, cord and mounting hardware. Manual pages 12, list 13.
Tap a part number to see that part.

| Item | Part number | Qty | Description and notes | Price |
|---|---|---|---|---|
| 1 | AD56003403Advance 56003403 | 4 | Nut-Hex Nyl Loc M6-1 | $11.33/EA |
| 2 | AD56003431Advance 56003431 | 4 | Scr-Hex Ss M6-1 x 16mm | $10.30/EA |
| 3 | AD56003840Advance 56003840 | 2 | Scr-Hex Loc Ss M5-0.8 x 16mm | $10.30/EA |
| 4 | AD56009096Advance 56009096 | 2 | Wsh, Flt .193 x .875 x .060 | $10.30/EA |
| 5 | AD56115374Advance 56115374 | 1 | Bracket-On Board Charger | $39.43/EA |
| 6 | AD56115375Advance 56115375 | 1 | Cord-Charger-Yellow- Us | $62.63/EA |
| 7 | AD56116611Advance 56116611 | 2 | Cable Tie-Mount | $8.80/EA |
| 8 | AD56315774Advance 56315774 | 1 | Charger-On Board 36v | $1,287.69/EA |
| 9 | AD79AAdvance 79A | 5 | Tie, Cable | Call to confirm part: 800-440-6723Call 800-440-6723 |
| 10 | AD9095149000Advance 9095149000 | 1 | Cable Support | $4.83/EA |
Advance SC901 ST recovery system parts
The recovery tank, lid, vacuum motor, vac hose, drain hose, float cages and debris cage. Manual pages 14, list 15.
Tap a part number to see that part.

| Item | Part number | Qty | Description and notes | Price |
|---|---|---|---|---|
| 1 | Not sold separatelyAdvance no number printed | 2 | Screw Flat Socket Head M6 x 16.0Kit part only: order kit K1, Hardware-Recovery-Kit (56115396) or K3, Cable-Recovery-Kit (56115398). | Not sold separately. Order Hardware-Recovery-Kit (AD56115396) |
| 2 | Not sold separatelyAdvance no number printed | 3 | Wsh-Flat SAE SS 5/16Kit part only: order kit K1, Hardware-Recovery-Kit (56115396) or K2, Motor-Vac-Kit (56115397). | Not sold separately. Order Hardware-Recovery-Kit (AD56115396) |
| 4 | Not sold separatelyAdvance no number printed | 3 | Scr, Hex Loc M6-1 x 16mmKit part only: order kit K1, Hardware-Recovery-Kit (56115396) or K2, Motor-Vac-Kit (56115397). | Not sold separately. Order Hardware-Recovery-Kit (AD56115396) |
| 5 | Not sold separatelyAdvance no number printed | 2 | Scr-Hex Loc M5-0.8 x 5mmKit part only: order kit K1, Hardware-Recovery-Kit (56115396). | Not sold separately. Order Hardware-Recovery-Kit (AD56115396) |
| 6 | Not sold separatelyAdvance no number printed | 2 | Wsh, Flt Std Ss #10Kit part only: order kit K1, Hardware-Recovery-Kit (56115396) or K4, Cage-Ball-Kit (56115399). | Not sold separately. Order Hardware-Recovery-Kit (AD56115396) |
| 7 | Not sold separatelyAdvance no number printed | 2 | Scr-Hex Loc Ss M5-0.8 x 16mmKit part only: order kit K1, Hardware-Recovery-Kit (56115396) or K4, Cage-Ball-Kit (56115399). | Not sold separately. Order Hardware-Recovery-Kit (AD56115396) |
| 8 | Not sold separatelyAdvance no number printed | 1 | Debris CageKit part only: order kit K5, Debris Cage Kit (56104360). | Not sold separately. Order Debris Cage Kit (AD56104360) |
| 9 | Not sold separatelyAdvance no number printed | 1 | Debris Tray CoverKit part only: order kit K5, Debris Cage Kit (56104360). | Not sold separately. Order Debris Cage Kit (AD56104360) |
| 10 | AD56104164Advance 56104164 | 1 | Gasket-Recovery Tank | $29.53/EA |
| 11 | AD56115292Advance 56115292 | 1 | Tank-Recovery-Light Gray | $574.47/EA |
| 12 | AD56115507Advance 56115507 | 1 | Lid-Recovery Tank-Nylon | $333.68/EA |
| 13 | AD56115343Advance 56115343 | 1 | Vac Hose Assy | $20.48/EA |
| 14 | Not sold separatelyAdvance no number printed | 1 | Plate-Vacuum MountKit part only: order kit K2, Motor-Vac-Kit (56115397). | Not sold separately. Order Motor-Vac-Kit (AD56115397) |
| 15 | AD56115369Advance 56115369 | 1 | Tube-Exhaust | $20.48/EA |
| 16 | AD56115571Advance 56115571 | 2 | Plate-Retainer-Nylon | $4.39/EA |
| 17 | AD56115436Advance 56115436 | 1 | Hose-Drain-Pu | $84.49/EA |
| 17 | AD56381940Advance 56381940 | 1 | Hose-Drain (Optional) | $47.12/EA |
| – | AD56601411Advance 56601411 | 1 | Drain Hose Cap KitOptional, not included. | $16.09/EA |
| 18 | Not sold separatelyAdvance no number printed | 1 | Cable AssyKit part only: order kit K3, Cable-Recovery-Kit (56115398). | Not sold separately. Order Cable-Recovery-Kit (AD56115398) |
| 19 | Not sold separatelyAdvance no number printed | 1 | Motor-Vacuum 36vdc (M4)Kit part only: order kit K2, Motor-Vac-Kit (56115397). | Not sold separately. Order Motor-Vac-Kit (AD56115397) |
| – | AD56116107Advance 56116107 | 1 | Vacuum Motor Brush KitNot shown on the drawing. | $17.46/EA |
| 20 | Not sold separatelyAdvance no number printed | 1 | Seal-Vacuum Motor InletKit part only: order kit K2, Motor-Vac-Kit (56115397). | Not sold separately. Order Motor-Vac-Kit (AD56115397) |
| 21 | Not sold separatelyAdvance no number printed | 2 | BushingKit part only: order kit K3, Cable-Recovery-Kit (56115398). | Not sold separately. Order Cable-Recovery-Kit (AD56115398) |
| 22 | AD56315141Advance 56315141 | 3 | Mount, VibrationAlso in kit K2, Motor-Vac-Kit (56115397). | $13.07/EA |
| 23 | Not sold separatelyAdvance no number printed | 1 | Clamp, Hose SupportKit part only: order kit K2, Motor-Vac-Kit (56115397). | Not sold separately. Order Motor-Vac-Kit (AD56115397) |
| 24 | Not sold separatelyAdvance no number printed | 2 | Cage, FloatKit part only: order kit K4, Cage-Ball-Kit (56115399). | Not sold separately. Order Cage-Ball-Kit (AD56115399) |
| 25 | Not sold separatelyAdvance no number printed | 1 | Ball- FloatKit part only: order kit K4, Cage-Ball-Kit (56115399). | Not sold separately. Order Cage-Ball-Kit (AD56115399) |
| 26 | AD56440213Advance 56440213 | 2 | Clamp- Hose SAE #32 | $10.30/EA |
| 27 | AD56456797Advance 56456797 | 1 | Clamp- Hose SAE #36 | $12.85/EA |
| 28 | Not sold separatelyAdvance no number printed | 1 | Support Float SystemKit part only: order kit K4, Cage-Ball-Kit (56115399). | Not sold separately. Order Cage-Ball-Kit (AD56115399) |
| 29 | Not sold separatelyAdvance no number printed | 1 | Gasket Float SupportKit part only: order kit K4, Cage-Ball-Kit (56115399). | Not sold separately. Order Cage-Ball-Kit (AD56115399) |
| – | AD56115396Advance 56115396 | 1 | Hardware-Recovery-KitService kit K1. Contains items 1, 2, 4, 5, 6, 7. | $17.46/EA |
| – | AD56115397Advance 56115397 | 1 | Motor-Vac-KitService kit K2. Contains items 2, 4, 14, 19, 20, 22, 23. | $334.36/EA |
| – | AD56115398Advance 56115398 | 1 | Cable-Recovery-KitService kit K3. Contains items 1, 18, 21. | $48.62/EA |
| – | AD56115399Advance 56115399 | 1 | Cage-Ball-KitService kit K4. Contains items 6, 7, 24, 25, 28, 29. | $62.63/EA |
| – | AD56104360Advance 56104360 | 1 | Debris Cage KitService kit K5. Contains items 8, 9. | $57.03/EA |
Advance SC901 ST scrub system-cylindrical parts
The cylindrical brush deck for the SC901 ST-32C: housing, drive end and idler assemblies, belts, brush motors, hopper and manifolds. Manual pages 16, list 17.
Tap a part number to see that part.

| Item | Part number | Qty | Description and notes | Price |
|---|---|---|---|---|
| 1 | Not sold separatelyAdvance no number printed | 4 | Scr, Soc Set Loc 5/16-18 x .25Fits SC901 ST-32C. Kit part only: order kit K2, 32C Hardware Kit (56115410). | Not sold separately. Order 32C Hardware Kit (AD56115410) |
| 2 | Not sold separatelyAdvance no number printed | 2 | Screw M6-1 x 12 Hex Hd. C.S.Fits SC901 ST-32C. Kit part only: order kit K2, 32C Hardware Kit (56115410). | Not sold separately. Order 32C Hardware Kit (AD56115410) |
| 3 | Not sold separatelyAdvance no number printed | 6 | Scr-Hex Loc Ss 1/4-20 x .75Fits SC901 ST-32C. Kit part only: order kit K2, 32C Hardware Kit (56115410). | Not sold separately. Order 32C Hardware Kit (AD56115410) |
| 4 | Not sold separatelyAdvance no number printed | 8 | Nut, Hex Nyl Loc Ss M6-1Fits SC901 ST-32C. Kit part only: order kit K2, 32C Hardware Kit (56115410). | Not sold separately. Order 32C Hardware Kit (AD56115410) |
| 5 | Not sold separatelyAdvance no number printed | 2 | Nut, Hex Nyl Loc Ss M12-1.75Fits SC901 ST-32C. Kit part only: order kit K3, 32C Spring Kit (56115411). | Not sold separately. Order 32C Spring Kit (AD56115411) |
| 6 | Not sold separatelyAdvance no number printed | 2 | Wsh, Flt Ss 6mmFits SC901 ST-32C. Kit part only: order kit K2, 32C Hardware Kit (56115410). | Not sold separately. Order 32C Hardware Kit (AD56115410) |
| 7 | Not sold separatelyAdvance no number printed | 2 | Scr-Hex Ss M6-1 x 95mmFits SC901 ST-32C. Kit part only: order kit K2, 32C Hardware Kit (56115410). | Not sold separately. Order 32C Hardware Kit (AD56115410) |
| 8 | Not sold separatelyAdvance no number printed | 2 | Nut-Hex Nyl Loc Ss M4 - 0.7Fits SC901 ST-32C. Kit part only: order kit K2, 32C Hardware Kit (56115410). | Not sold separately. Order 32C Hardware Kit (AD56115410) |
| 9 | Not sold separatelyAdvance no number printed | 1 | Scr Flt Soc Ss M8-1.25 x 16mmFits SC901 ST-32C. Kit part only: order kit K2, 32C Hardware Kit (56115410) or K4, 32C Lever Kit (56115412). | Not sold separately. Order 32C Hardware Kit (AD56115410) |
| 10 | Not sold separatelyAdvance no number printed | 1 | Scr Hex Ss M12-1.75 x 150mmFits SC901 ST-32C. Kit part only: order kit K2, 32C Hardware Kit (56115410) or K3, 32C Spring Kit (56115411). | Not sold separately. Order 32C Hardware Kit (AD56115410) |
| 11 | Not sold separatelyAdvance no number printed | 1 | Scr Hex Ss M12-1.75 x 100mmFits SC901 ST-32C. Kit part only: order kit K2, 32C Hardware Kit (56115410) or K3, 32C Spring Kit (56115411). | Not sold separately. Order 32C Hardware Kit (AD56115410) |
| 12 | Not sold separatelyAdvance no number printed | 2 | Scr-Button Soc Ss M4-0.7x12Fits SC901 ST-32C. Kit part only: order kit K2, 32C Hardware Kit (56115410). | Not sold separately. Order 32C Hardware Kit (AD56115410) |
| 13 | Not sold separatelyAdvance no number printed | 3 | Scr, Hex Thd Form 1/4-20 x .38Fits SC901 ST-32C. Kit part only: order kit K2, 32C Hardware Kit (56115410). | Not sold separately. Order 32C Hardware Kit (AD56115410) |
| 14 | AD56112166Advance 56112166 | 2 | Sheave-Poly-VFits SC901 ST-32C. | $13.76/EA |
| 15 | Not sold separatelyAdvance no number printed | 8 | BushingFits SC901 ST-32C. Kit part only: order kit K1, Link Arm Scrub Kit (56115406). | Not sold separately. Order Link Arm Scrub Kit (AD56115406) |
| 16 | AD56112771Advance 56112771 | 3 | Clamp- Hose SAE #10Fits SC901 ST-32C. | $11.69/EA |
| 17 | AD56115267Advance 56115267 | 1 | Housing Weldment-32 Inch CylFits SC901 ST-32C. | $727.23/EA |
| 18 | Not sold separatelyAdvance no number printed | 2 | Spring-Compression 7 PoundFits SC901 ST-32C. Kit part only: order kit K3, 32C Spring Kit (56115411). | Not sold separately. Order 32C Spring Kit (AD56115411) |
| 19 | Not sold separatelyAdvance no number printed | 1 | Lever-Deck-CylFits SC901 ST-32C. Kit part only: order kit K4, 32C Lever Kit (56115412). | Not sold separately. Order 32C Lever Kit (AD56115412) |
| 20 | AD56115314Advance 56115314 | 2 | Guard Assy-BeltFits SC901 ST-32C. | $28.44/EA |
| 21 | AD56115315Advance 56115315 | 2 | Belt-Auto TensionFits SC901 ST-32C. | $13.07/EA |
| 22 | AD56115318Advance 56115318 | 2 | Drive End AssyFits SC901 ST-32C. | $100.68/EA |
| 22a | AD56002930Advance 56002930 | 2 | Scr, Soc Set Loc 1/4-20 x .38Fits SC901 ST-32C. | $11.69/EA |
| 22b | AD56003237Advance 56003237 | 1 | Key, Sq .19 x .62Fits SC901 ST-32C. | $11.69/EA |
| 22c | AD56106070Advance 56106070 | 2 | Bearing, BallFits SC901 ST-32C. | $13.76/EA |
| 22d | AD56115319Advance 56115319 | 1 | Spindle-LongFits SC901 ST-32C. | $14.37/EA |
| 22e | AD56381765Advance 56381765 | 1 | Bearing PlateFits SC901 ST-32C. | $15.57/EA |
| 22f | AD56407389Advance 56407389 | 1 | SpacerFits SC901 ST-32C. | $13.07/EA |
| 22g | AD56115316Advance 56115316 | 1 | Sheave-Poly VFits SC901 ST-32C. | $39.43/EA |
| 22h | AD56407558Advance 56407558 | 1 | Washer BearingFits SC901 ST-32C. | $10.30/EA |
| 23 | AD56115337Advance 56115337 | 1 | Knob-M8-1.25Fits SC901 ST-32C. Also in kit K4, 32C Lever Kit (56115412). | $31.05/EA |
| 24 | AD56115344Advance 56115344 | 2 | Idler End AssyFits SC901 ST-32C. | $51.43/EA |
| 24a | AD56106070Advance 56106070 | 1 | Bearing, BallFits SC901 ST-32C. | $13.76/EA |
| 24b | AD56407558Advance 56407558 | 1 | Washer BearingFits SC901 ST-32C. | $10.30/EA |
| 24c | AD56315447Advance 56315447 | 1 | Idler Bearing PlateFits SC901 ST-32C. | $25.70/EA |
| 24d | AD56407303Advance 56407303 | 1 | KnobFits SC901 ST-32C. | $10.30/EA |
| 24e | AD56115273Advance 56115273 | 1 | Hub-IdlerFits SC901 ST-32C. | $15.57/EA |
| 25 | AD56115350Advance 56115350 | 1 | Cover-Front-CylFits SC901 ST-32C. | $114.71/EA |
| 26 | Not sold separatelyAdvance no number printed | 3 | Spacer-NylonFits SC901 ST-32C. Kit part only: order kit K3, 32C Spring Kit (56115411). | Not sold separately. Order 32C Spring Kit (AD56115411) |
| 27 | Not sold separatelyAdvance no number printed | 2 | Tube-SpringFits SC901 ST-32C. Kit part only: order kit K3, 32C Spring Kit (56115411). | Not sold separately. Order 32C Spring Kit (AD56115411) |
| 28 | AD56115381Advance 56115381 | 2 | Jumper-Molex ConnectorFits SC901 ST-32C. | $31.05/EA |
| 29 | AD56115431Advance 56115431 | 1 | Bracket-SpringFits SC901 ST-32C. | $8.80/EA |
| 30 | Not sold separatelyAdvance no number printed | 1 | Valve-Solenoid-36vdc (L1)Fits SC901 ST-32C. Kit part only: order kit K6, Solenoid Valve-Kit (56116875). | Not sold separately. Order Solenoid Valve-Kit (AD56116875) |
| 31 | AD56305760Advance 56305760 | 1 | Tee, Barb 3/4 X 1/2 X 1/2Fits SC901 ST-32C. | $11.69/EA |
| 32 | AD56315611Advance 56315611 | 2 | Motor, 36 Vdc, .75 Hp, 1800 Rpm (M2, M3)Fits SC901 ST-32C. | $1,308.69/EA |
| – | AD56510763Advance 56510763 | 1 | Brush Kit-Motor (for 56315611)Fits SC901 ST-32C. Optional, not included. | $254.81/EA |
| 33 | AD56315616Advance 56315616 | 1 | Hopper Assembly, 32”Fits SC901 ST-32C. | $414.70/EA |
| 34 | AD56315647Advance 56315647 | 2 | Manifold, PVC 32Fits SC901 ST-32C. | $17.46/EA |
| 35 | AD56324041Advance 56324041 | 1 | Hose, .75 Clear PVCFits SC901 ST-32C. | $11.69/EA |
| 36 | AD56409538Advance 56409538 | 4 | Insulator, TerminalFits SC901 ST-32C. | $13.07/EA |
| 37 | AD56412176Advance 56412176 | 2 | BushingFits SC901 ST-32C. | $47.12/EA |
| 38 | AD56412459Advance 56412459 | 2 | WheelFits SC901 ST-32C. | $14.70/EA |
| 39 | AD56455735Advance 56455735 | 1 | Spring, ExtensionFits SC901 ST-32C. | $88.73/EA |
| 40 | Not sold separatelyAdvance no number printed | 1 | Mat, PedalFits SC901 ST-32C. Kit part only: order kit K4, 32C Lever Kit (56115412). | Not sold separately. Order 32C Lever Kit (AD56115412) |
| 41 | Not sold separatelyAdvance no number printed | 4 | Lever, Brush Head LiftFits SC901 ST-32C. Kit part only: order kit K1, Link Arm Scrub Kit (56115406). | Not sold separately. Order Link Arm Scrub Kit (AD56115406) |
| 42 | Not sold separatelyAdvance no number printed | 4 | Guide, SpringFits SC901 ST-32C. Kit part only: order kit K3, 32C Spring Kit (56115411). | Not sold separately. Order 32C Spring Kit (AD56115411) |
| 43 | Not sold separatelyAdvance no number printed | 8 | Nut, M10-1.5 NylockFits SC901 ST-32C. Kit part only: order kit K1, Link Arm Scrub Kit (56115406) or K2, 32C Hardware Kit (56115410). | Not sold separately. Order Link Arm Scrub Kit (AD56115406) |
| 44 | Not sold separatelyAdvance no number printed | 8 | Scr-Soc Shd M12 x 16 MM x M10-1.50Fits SC901 ST-32C. Kit part only: order kit K1, Link Arm Scrub Kit (56115406) or K2, 32C Hardware Kit (56115410). | Not sold separately. Order Link Arm Scrub Kit (AD56115406) |
| 45 | Not sold separatelyAdvance no number printed | 1 | Bushing .32x.50x.35Fits SC901 ST-32C. Kit part only: order kit K4, 32C Lever Kit (56115412). | Not sold separately. Order 32C Lever Kit (AD56115412) |
| 46 | Not sold separatelyAdvance no number printed | 1 | Scr Hex Ss M8-1.25x35mmFits SC901 ST-32C. Kit part only: order kit K4, 32C Lever Kit (56115412). | Not sold separately. Order 32C Lever Kit (AD56115412) |
| 47 | Not sold separatelyAdvance no number printed | 1 | Nut, Hex Nyl Loc Ss M8-1.25Fits SC901 ST-32C. Kit part only: order kit K4, 32C Lever Kit (56115412). | Not sold separately. Order 32C Lever Kit (AD56115412) |
| 48 | AD56115472Advance 56115472 | 1 | Lever-Deck PivotFits SC901 ST-32C. | $38.72/EA |
| 49 | AD56002851Advance 56002851 | 2 | Nut, Hex Nyl Loc – Thin SS 5/16-18Fits SC901 ST-32C. | $11.69/EA |
| 50 | AD56002938Advance 56002938 | 2 | Wsh-Flt SAE SS 5/16”Fits SC901 ST-32C. | $10.30/EA |
| – | AD56115406Advance 56115406 | 1 | Link Arm Scrub KitFits SC901 ST-32C. Service kit K1. Contains items 15, 41, 43, 44. | $64.01/EA |
| – | AD56115410Advance 56115410 | 1 | 32C Hardware KitFits SC901 ST-32C. Service kit K2. Contains items 1, 2, 3, 4, 6, 7, 8, 9, 10, 11, 12, 13, 43, 44. | $28.65/EA |
| – | AD56115411Advance 56115411 | 1 | 32C Spring KitFits SC901 ST-32C. Service kit K3. Contains items 5, 10, 11, 18, 26, 27, 42. | $160.57/EA |
| – | AD56115412Advance 56115412 | 1 | 32C Lever KitFits SC901 ST-32C. Service kit K4. Contains items 9, 19, 23, 40, 45, 46, 47. | $189.43/EA |
| – | AD56118185Advance 56118185 | 1 | Solenoid Seal-KitFits SC901 ST-32C. Service kit K5. | $52.05/EA |
| – | AD56116875Advance 56116875 | 1 | Solenoid Valve-KitFits SC901 ST-32C. Service kit K6. Contains item 30. | $225.98/EA |
Advance SC901 ST scrub system-disc parts
The disc brush deck for the 28D and 34D: deck weldment, brush skirts, brush motors, levers, springs, solenoid valve and brush plates. Lines tagged to one size fit only that size. Manual pages 18, list 19.
Tap a part number to see that part.

| Item | Part number | Qty | Description and notes | Price |
|---|---|---|---|---|
| 1 | Not sold separatelyAdvance no number printed | 8 | Wsh-Flt SAE Ss 3/8Fits SC901 ST-28D, SC901 ST-34D, SC901 ST-28D NEXSYS, SC901 ST-34D NEXSYS. Kit part only: order kit K1, Hardware-28D/34D-Kit (56115404). | Not sold separately. Order Hardware-28D/34D-Kit (AD56115404) |
| 2 | Not sold separatelyAdvance no number printed | 8 | Scr-Hex Loc Ss 3/8-16 x .75Fits SC901 ST-28D, SC901 ST-34D, SC901 ST-28D NEXSYS, SC901 ST-34D NEXSYS. Kit part only: order kit K1, Hardware-28D/34D-Kit (56115404). | Not sold separately. Order Hardware-28D/34D-Kit (AD56115404) |
| 3 | Not sold separatelyAdvance no number printed | 1 | Nut, Hex Nyl Loc Ss M8-1.25Fits SC901 ST-28D, SC901 ST-34D, SC901 ST-28D NEXSYS, SC901 ST-34D NEXSYS. Kit part only: order kit K1, Hardware-28D/34D-Kit (56115404) or K4, Lever-28D/34D-Kit (56115407). | Not sold separately. Order Hardware-28D/34D-Kit (AD56115404) |
| 4 | Not sold separatelyAdvance no number printed | 1 | Scr-Hex Ss M8-1.25 x 40mmFits SC901 ST-28D, SC901 ST-34D, SC901 ST-28D NEXSYS, SC901 ST-34D NEXSYS. Kit part only: order kit K1, Hardware-28D/34D-Kit (56115404) or K6, Wheel Brush Skirt-Kit (56115448). | Not sold separately. Order Hardware-28D/34D-Kit (AD56115404) |
| 5 | Not sold separatelyAdvance no number printed | 2 | Nut, Hex Nyl Loc Ss M12-1.75Fits SC901 ST-28D, SC901 ST-34D, SC901 ST-28D NEXSYS, SC901 ST-34D NEXSYS. Kit part only: order kit K1, Hardware-28D/34D-Kit (56115404) or K2, Spring-28D/34D-Kit (56115405). | Not sold separately. Order Hardware-28D/34D-Kit (AD56115404) |
| 6 | Not sold separatelyAdvance no number printed | 3 | Wsh, Flt Ss 8mmFits SC901 ST-28D, SC901 ST-34D, SC901 ST-28D NEXSYS, SC901 ST-34D NEXSYS. Kit part only: order kit K1, Hardware-28D/34D-Kit (56115404) or K6, Wheel Brush Skirt-Kit (56115448). | Not sold separately. Order Hardware-28D/34D-Kit (AD56115404) |
| 7 | Not sold separatelyAdvance no number printed | 2 | Scr-Soc Hd 5/16-18 x 1.25 ZincFits SC901 ST-28D, SC901 ST-34D, SC901 ST-28D NEXSYS, SC901 ST-34D NEXSYS. Kit part only: order kit K1, Hardware-28D/34D-Kit (56115404). | Not sold separately. Order Hardware-28D/34D-Kit (AD56115404) |
| 8 | Not sold separatelyAdvance no number printed | 2 | Scr-Hex Loc Ss M5-0.8 x 16mmFits SC901 ST-28D, SC901 ST-34D, SC901 ST-28D NEXSYS, SC901 ST-34D NEXSYS. Kit part only: order kit K1, Hardware-28D/34D-Kit (56115404). | Not sold separately. Order Hardware-28D/34D-Kit (AD56115404) |
| 9 | Not sold separatelyAdvance no number printed | 6 | Nut-Hex Nyl Loc Ss M4-0.7Fits SC901 ST-28D, SC901 ST-34D, SC901 ST-28D NEXSYS, SC901 ST-34D NEXSYS. Kit part only: order kit K1, Hardware-28D/34D-Kit (56115404). | Not sold separately. Order Hardware-28D/34D-Kit (AD56115404) |
| 10 | Not sold separatelyAdvance no number printed | 2 | Nut Hex Nyl Loc Ss M5-0.8Fits SC901 ST-28D, SC901 ST-34D, SC901 ST-28D NEXSYS, SC901 ST-34D NEXSYS. Kit part only: order kit K1, Hardware-28D/34D-Kit (56115404). | Not sold separately. Order Hardware-28D/34D-Kit (AD56115404) |
| 11 | Not sold separatelyAdvance no number printed | 1 | Scr Flt Soc Ss M8-1.25 x 16mmFits SC901 ST-28D, SC901 ST-34D, SC901 ST-28D NEXSYS, SC901 ST-34D NEXSYS. Kit part only: order kit K1, Hardware-28D/34D-Kit (56115404) or K4, Lever-28D/34D-Kit (56115407). | Not sold separately. Order Hardware-28D/34D-Kit (AD56115404) |
| 12 | Not sold separatelyAdvance no number printed | 1 | Scr Hex Ss M12-1.75 x 150mmFits SC901 ST-28D, SC901 ST-34D, SC901 ST-28D NEXSYS, SC901 ST-34D NEXSYS. Kit part only: order kit K1, Hardware-28D/34D-Kit (56115404) or K2, Spring-28D/34D-Kit (56115405). | Not sold separately. Order Hardware-28D/34D-Kit (AD56115404) |
| 13 | Not sold separatelyAdvance no number printed | 1 | *Scr Hex Ss M12-1.75 x 100mmFits SC901 ST-28D, SC901 ST-34D, SC901 ST-28D NEXSYS, SC901 ST-34D NEXSYS. Kit part only: order kit K1, Hardware-28D/34D-Kit (56115404) or K2, Spring-28D/34D-Kit (56115405). Optional, not included. | Not sold separately. Order Hardware-28D/34D-Kit (AD56115404) |
| 14 | Not sold separatelyAdvance no number printed | 6 | Scr-Button Soc Ss M4-0.7 x 12Fits SC901 ST-28D, SC901 ST-34D, SC901 ST-28D NEXSYS, SC901 ST-34D NEXSYS. Kit part only: order kit K1, Hardware-28D/34D-Kit (56115404). | Not sold separately. Order Hardware-28D/34D-Kit (AD56115404) |
| 15 | Not sold separatelyAdvance no number printed | 1 | Scr, Hex Thd Form 1/4-20 x .38Fits SC901 ST-28D, SC901 ST-34D, SC901 ST-28D NEXSYS, SC901 ST-34D NEXSYS. Kit part only: order kit K1, Hardware-28D/34D-Kit (56115404). | Not sold separately. Order Hardware-28D/34D-Kit (AD56115404) |
| 16 | Not sold separatelyAdvance no number printed | 1 | Button Plug-1.25Fits SC901 ST-28D, SC901 ST-34D, SC901 ST-28D NEXSYS, SC901 ST-34D NEXSYS. Kit part only: order kit K6, Wheel Brush Skirt-Kit (56115448). | Not sold separately. Order Wheel Brush Skirt-Kit (AD56115448) |
| 17 | AD56112259Advance 56112259 | 1 | Brush Skirt Assy-28d Left (28D)Fits SC901 ST-28D, SC901 ST-28D NEXSYS. | $130.92/EA |
| 17 | AD56112261Advance 56112261 | 1 | Brush Skirt Assy-34d Left (34D)Fits SC901 ST-34D, SC901 ST-34D NEXSYS. | $87.37/EA |
| 18 | AD56112260Advance 56112260 | 1 | Brush Skirt Assy-28d Right (28D)Fits SC901 ST-28D, SC901 ST-28D NEXSYS. | $130.92/EA |
| 18 | AD56112262Advance 56112262 | 1 | Brush Skirt Assy-34d Right (34D)Fits SC901 ST-34D, SC901 ST-34D NEXSYS. | $129.54/EA |
| – | AD56112306Advance 56112306 | 1 | Kit-Bristle Skirt 28 (28” models / Includes two skirts and mounting hardware)Fits SC901 ST-28D, SC901 ST-28D NEXSYS. Not shown on the drawing. | $167.59/EA |
| – | AD56112307Advance 56112307 | 1 | Kit-Bristle Skirt 34 (34” models / Includes two skirts and mounting hardware)Fits SC901 ST-34D, SC901 ST-34D NEXSYS. Not shown on the drawing. | $187.09/EA |
| 19 | Not sold separatelyAdvance no number printed | 8 | BushingFits SC901 ST-28D, SC901 ST-34D, SC901 ST-28D NEXSYS, SC901 ST-34D NEXSYS. Kit part only: order kit K3, Link Arm-Scrub-Kit (56115406). | Not sold separately. Order Link Arm Scrub Kit (AD56115406) |
| 20 | AD56115248Advance 56115248 | 1 | Deck Weldment-28 In Disc (28D)Fits SC901 ST-28D, SC901 ST-28D NEXSYS. | Call to confirm part: 800-440-6723Call 800-440-6723 |
| 20 | AD56115245Advance 56115245 | 1 | Deck Weldment-34 In Disc (34D)Fits SC901 ST-34D, SC901 ST-34D NEXSYS. | Call to confirm part: 800-440-6723Call 800-440-6723 |
| 21 | AD56115473Advance 56115473 | 1 | Lever-Deck-DiscFits SC901 ST-28D, SC901 ST-34D, SC901 ST-28D NEXSYS, SC901 ST-34D NEXSYS. Also in kit K4, Lever-28D/34D-Kit (56115407). | $54.26/EA |
| 22 | Not sold separatelyAdvance no number printed | 2 | Spring-Compression 25 PoundFits SC901 ST-28D, SC901 ST-34D, SC901 ST-28D NEXSYS, SC901 ST-34D NEXSYS. Kit part only: order kit K2, Spring-28D/34D-Kit (56115405). | Not sold separately. Order Spring-28D/34D-Kit (AD56115405) |
| 23 | AD56115298Advance 56115298 | 1 | Cover-Front-DiscFits SC901 ST-28D, SC901 ST-34D, SC901 ST-28D NEXSYS, SC901 ST-34D NEXSYS. | $59.88/EA |
| 24 | AD56115337Advance 56115337 | 1 | Knob-M8-1.25Fits SC901 ST-28D, SC901 ST-34D, SC901 ST-28D NEXSYS, SC901 ST-34D NEXSYS. Also in kit K4, Lever-28D/34D-Kit (56115407). | $31.05/EA |
| 25 | Not sold separatelyAdvance no number printed | 3 | Spacer-NylonFits SC901 ST-28D, SC901 ST-34D, SC901 ST-28D NEXSYS, SC901 ST-34D NEXSYS. Kit part only: order kit K2, Spring-28D/34D-Kit (56115405). | Not sold separately. Order Spring-28D/34D-Kit (AD56115405) |
| 26 | Not sold separatelyAdvance no number printed | 2 | Tube-SpringFits SC901 ST-28D, SC901 ST-34D, SC901 ST-28D NEXSYS, SC901 ST-34D NEXSYS. Kit part only: order kit K2, Spring-28D/34D-Kit (56115405). | Not sold separately. Order Spring-28D/34D-Kit (AD56115405) |
| 27 | AD56115377Advance 56115377 | 2 | Motor-Gear-Unit 36 Volt (M2,M3)Fits SC901 ST-28D, SC901 ST-34D, SC901 ST-28D NEXSYS, SC901 ST-34D NEXSYS. | $1,046.88/EA |
| – | AD56397139Advance 56397139 | 4 | Carbon BrushFits SC901 ST-28D, SC901 ST-34D, SC901 ST-28D NEXSYS, SC901 ST-34D NEXSYS. Optional, not included. | $90.70/EA |
| – | AD56397138Advance 56397138 | 4 | Brush SpringFits SC901 ST-28D, SC901 ST-34D, SC901 ST-28D NEXSYS, SC901 ST-34D NEXSYS. Optional, not included. | $16.09/EA |
| 28 | AD56115427Advance 56115427 | 1 | Latch AssemblyFits SC901 ST-28D, SC901 ST-34D, SC901 ST-28D NEXSYS, SC901 ST-34D NEXSYS. | $14.70/EA |
| 28 | AD56115427Advance 56115427 | 1 | Latch AssemblyFits SC901 ST-28D, SC901 ST-34D, SC901 ST-28D NEXSYS, SC901 ST-34D NEXSYS. | $14.70/EA |
| 29 | Not sold separatelyAdvance no number printed | 1 | Valve-Solenoid-36vdc (L1)Fits SC901 ST-28D, SC901 ST-34D, SC901 ST-28D NEXSYS, SC901 ST-34D NEXSYS. Kit part only: order kit K7, Solenoid Valve-Kit (56116875). | Not sold separately. Order Solenoid Valve-Kit (AD56116875) |
| 30 | AD56305760Advance 56305760 | 1 | Tee, Barb 3/4 x 1/2 x 1/2Fits SC901 ST-28D, SC901 ST-34D, SC901 ST-28D NEXSYS, SC901 ST-34D NEXSYS. | $11.69/EA |
| 31 | AD56324041Advance 56324041 | 1 | Hose, .75 Clear PvcFits SC901 ST-28D, SC901 ST-34D, SC901 ST-28D NEXSYS, SC901 ST-34D NEXSYS. | $11.69/EA |
| 32 | AD56397207Advance 56397207 | 2 | Hose Pvc .500 x 7 (28D)Fits SC901 ST-28D, SC901 ST-28D NEXSYS. | $11.69/EA |
| 32 | AD56397382Advance 56397382 | 2 | Hose Pvc .500 x 8 (34D)Fits SC901 ST-34D, SC901 ST-34D NEXSYS. | $4.39/EA |
| 33 | AD56442003Advance 56442003 | 2 | Clamp-PFits SC901 ST-28D, SC901 ST-34D, SC901 ST-28D NEXSYS, SC901 ST-34D NEXSYS. | $11.69/EA |
| 34 | Not sold separatelyAdvance no number printed | 1 | Mat, PedalFits SC901 ST-28D, SC901 ST-34D, SC901 ST-28D NEXSYS, SC901 ST-34D NEXSYS. Kit part only: order kit K4, Lever-28D/34D-Kit (56115407). | Not sold separately. Order Lever-28D/34D-Kit (AD56115407) |
| 35 | AD56601276Advance 56601276 | 1 | Brush Plate AssyFits SC901 ST-28D, SC901 ST-34D, SC901 ST-28D NEXSYS, SC901 ST-34D NEXSYS. | $121.15/EA |
| 36 | AD56601384Advance 56601384 | 1 | Brush Plate AssyFits SC901 ST-28D, SC901 ST-34D, SC901 ST-28D NEXSYS, SC901 ST-34D NEXSYS. | $121.15/EA |
| 37 | Not sold separatelyAdvance no number printed | 1 | Wheel, 4.00 OdFits SC901 ST-28D, SC901 ST-34D, SC901 ST-28D NEXSYS, SC901 ST-34D NEXSYS. Kit part only: order kit K6, Wheel Brush Skirt-Kit (56115448). | Not sold separately. Order Wheel Brush Skirt-Kit (AD56115448) |
| 38 | Not sold separatelyAdvance no number printed | 1 | Bushing, NylonFits SC901 ST-28D, SC901 ST-34D, SC901 ST-28D NEXSYS, SC901 ST-34D NEXSYS. Kit part only: order kit K6, Wheel Brush Skirt-Kit (56115448). | Not sold separately. Order Wheel Brush Skirt-Kit (AD56115448) |
| 39 | Not sold separatelyAdvance no number printed | 4 | Lever, Brush Head LiftFits SC901 ST-28D, SC901 ST-34D, SC901 ST-28D NEXSYS, SC901 ST-34D NEXSYS. Kit part only: order kit K3, Link Arm-Scrub-Kit (56115406). | Not sold separately. Order Link Arm Scrub Kit (AD56115406) |
| 40 | Not sold separatelyAdvance no number printed | 4 | Guide, SpringFits SC901 ST-28D, SC901 ST-34D, SC901 ST-28D NEXSYS, SC901 ST-34D NEXSYS. Kit part only: order kit K2, Spring-28D/34D-Kit (56115405). | Not sold separately. Order Spring-28D/34D-Kit (AD56115405) |
| 41 | AD55451AAdvance 55451A | 1 | Keeper, LatchFits SC901 ST-28D, SC901 ST-34D, SC901 ST-28D NEXSYS, SC901 ST-34D NEXSYS. | $10.30/EA |
| 42 | AD69186AAdvance 69186A | 1 | Tab, Latch, BrushFits SC901 ST-28D, SC901 ST-34D, SC901 ST-28D NEXSYS, SC901 ST-34D NEXSYS. | $12.08/EA |
| 43 | Not sold separatelyAdvance no number printed | 8 | Nut, M10-1.5 NylockFits SC901 ST-28D, SC901 ST-34D, SC901 ST-28D NEXSYS, SC901 ST-34D NEXSYS. Kit part only: order kit K1, Hardware-28D/34D-Kit (56115404) or K3, Link Arm-Scrub-Kit (56115406). | Not sold separately. Order Hardware-28D/34D-Kit (AD56115404) |
| 44 | Not sold separatelyAdvance no number printed | 8 | Scr-Soc Shd M12 x 16 MM x M10-1.50Fits SC901 ST-28D, SC901 ST-34D, SC901 ST-28D NEXSYS, SC901 ST-34D NEXSYS. Kit part only: order kit K1, Hardware-28D/34D-Kit (56115404) or K3, Link Arm-Scrub-Kit (56115406). | Not sold separately. Order Hardware-28D/34D-Kit (AD56115404) |
| 45 | Not sold separatelyAdvance no number printed | 1 | Scr Hex SS M8-1.25 x 35mmFits SC901 ST-28D, SC901 ST-34D, SC901 ST-28D NEXSYS, SC901 ST-34D NEXSYS. Kit part only: order kit K4, Lever-28D/34D-Kit (56115407). | Not sold separately. Order Lever-28D/34D-Kit (AD56115407) |
| 46 | Not sold separatelyAdvance no number printed | 1 | Bushing .32 x.50 x.35Fits SC901 ST-28D, SC901 ST-34D, SC901 ST-28D NEXSYS, SC901 ST-34D NEXSYS. Kit part only: order kit K4, Lever-28D/34D-Kit (56115407). | Not sold separately. Order Lever-28D/34D-Kit (AD56115407) |
| 47 | AD56009096Advance 56009096 | 4 | Wsh, Flt .193 X .875 x .060Fits SC901 ST-28D, SC901 ST-34D, SC901 ST-28D NEXSYS, SC901 ST-34D NEXSYS. Also in kit K1, Hardware-28D/34D-Kit (56115404). | $10.30/EA |
| 48 | AD56112771Advance 56112771 | 1 | Clamp- Hose SAE #10Fits SC901 ST-28D, SC901 ST-34D, SC901 ST-28D NEXSYS, SC901 ST-34D NEXSYS. | $11.69/EA |
| 49 | AD56115472Advance 56115472 | 1 | Lever-Deck PivotFits SC901 ST-28D, SC901 ST-34D, SC901 ST-28D NEXSYS, SC901 ST-34D NEXSYS. | $38.72/EA |
| 50 | AD56002851Advance 56002851 | 2 | Nut, Hex Nyl Loc – Thin SS 5/16-18Fits SC901 ST-28D, SC901 ST-34D, SC901 ST-28D NEXSYS, SC901 ST-34D NEXSYS. | $11.69/EA |
| 51 | AD56002938Advance 56002938 | 2 | Wsh-Flt SAE SS 5/16”Fits SC901 ST-28D, SC901 ST-34D, SC901 ST-28D NEXSYS, SC901 ST-34D NEXSYS. | $10.30/EA |
| – | AD56115404Advance 56115404 | 1 | Hardware-28D/34D-KitFits SC901 ST-28D, SC901 ST-34D, SC901 ST-28D NEXSYS, SC901 ST-34D NEXSYS. Service kit K1. Contains items 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 43, 44, 47. | $51.33/EA |
| – | AD56115405Advance 56115405 | 1 | Spring-28D/34D-KitFits SC901 ST-28D, SC901 ST-34D, SC901 ST-28D NEXSYS, SC901 ST-34D NEXSYS. Service kit K2. Contains items 5, 12, 13, 22, 25, 26, 40. | $138.74/EA |
| – | AD56115406Advance 56115406 | 1 | Link Arm-Scrub-KitFits SC901 ST-28D, SC901 ST-34D, SC901 ST-28D NEXSYS, SC901 ST-34D NEXSYS. Service kit K3. Contains items 19, 39, 43, 44. | $64.01/EA |
| – | AD56115407Advance 56115407 | 1 | Lever-28D/34D-KitFits SC901 ST-28D, SC901 ST-34D, SC901 ST-28D NEXSYS, SC901 ST-34D NEXSYS. Service kit K4. Contains items 3, 11, 21, 24, 34, 45, 46. | $232.96/EA |
| – | AD56118185Advance 56118185 | 1 | Solenoid Seal-KitFits SC901 ST-28D, SC901 ST-34D, SC901 ST-28D NEXSYS, SC901 ST-34D NEXSYS. Service kit K5. | $52.05/EA |
| – | AD56115448Advance 56115448 | 1 | Wheel Brush Skirt-KitFits SC901 ST-28D, SC901 ST-34D, SC901 ST-28D NEXSYS, SC901 ST-34D NEXSYS. Service kit K6. Contains items 4, 6, 16, 37, 38. | $26.25/EA |
| – | AD56116875Advance 56116875 | 1 | Solenoid Valve-KitFits SC901 ST-28D, SC901 ST-34D, SC901 ST-28D NEXSYS, SC901 ST-34D NEXSYS. Service kit K7. Contains item 29. | $225.98/EA |
Advance SC901 ST solution system parts
The solution tank, fill cap, control cable, switches, hoses, ball valve and solution filter. Manual pages 20, list 21.
Tap a part number to see that part.

| Item | Part number | Qty | Description and notes | Price |
|---|---|---|---|---|
| 1 | AD722030Advance 722030 | 6 | Clamp, Hose | $9.35/EA |
| 2 | Not sold separatelyAdvance no number printed | 1 | Nut-Hex Nyl Loc Ss 6-32Kit part only: order kit K1, Hardware Solution Kit (56115394) or K4, Solution Control Lever-Kit (56115446). | Not sold separately. Order Hardware Solution Kit (AD56115394) |
| 3 | Not sold separatelyAdvance no number printed | 1 | Scr-Pan Phil SS 6-32 x .50Kit part only: order kit K1, Hardware Solution Kit (56115394) or K4, Solution Control Lever-Kit (56115446). | Not sold separately. Order Hardware Solution Kit (AD56115394) |
| 4 | Not sold separatelyAdvance no number printed | 2 | Wsh, Flt .266 x .750 x .036Kit part only: order kit K1, Hardware Solution Kit (56115394) or K5, Drain Hose Retainer Kit (56115524). | Not sold separately. Order Hardware Solution Kit (AD56115394) |
| 5 | Not sold separatelyAdvance no number printed | 4 | Scr-Hex Ss M6-1 x 12mmKit part only: order kit K1, Hardware Solution Kit (56115394). | Not sold separately. Order Hardware Solution Kit (AD56115394) |
| 6 | Not sold separatelyAdvance no number printed | 2 | Scr-Flt-Trx Plastite-10-14 x .75Kit part only: order kit K1, Hardware Solution Kit (56115394) or K5, Drain Hose Retainer Kit (56115524). | Not sold separately. Order Hardware Solution Kit (AD56115394) |
| 7 | Not sold separatelyAdvance no number printed | 9 | Wsh, Flt Ss 6mmKit part only: order kit K1, Hardware Solution Kit (56115394) or K2, Cap Solution Fill Kit (56115395). | Not sold separately. Order Hardware Solution Kit (AD56115394) |
| 8 | Not sold separatelyAdvance no number printed | 4 | Scr-Trus-Phil-Blk-SS-M5-0.8 x 16Kit part only: order kit K1, Hardware Solution Kit (56115394) or K4, Solution Control Lever-Kit (56115446). | Not sold separately. Order Hardware Solution Kit (AD56115394) |
| 9 | Not sold separatelyAdvance no number printed | 1 | Scr-Hex Loc Ss M5-0.8 x 16mmKit part only: order kit K1, Hardware Solution Kit (56115394) or K2, Cap Solution Fill Kit (56115395). | Not sold separately. Order Hardware Solution Kit (AD56115394) |
| 10 | Not sold separatelyAdvance no number printed | 4 | Scr-Pan Phil Ss M3-0.5 x 20mmKit part only: order kit K1, Hardware Solution Kit (56115394). | Not sold separately. Order Hardware Solution Kit (AD56115394) |
| 11 | Not sold separatelyAdvance no number printed | 4 | Scr-Soc Hd Ss M8-1.25 x 20mmKit part only: order kit K1, Hardware Solution Kit (56115394). | Not sold separately. Order Hardware Solution Kit (AD56115394) |
| 12 | Not sold separatelyAdvance no number printed | 4 | Nut Hex Nyl Loc Ss M3-0.5Kit part only: order kit K1, Hardware Solution Kit (56115394). | Not sold separately. Order Hardware Solution Kit (AD56115394) |
| 13 | Not sold separatelyAdvance no number printed | 3 | Scr-Button Soc Ss M5-0.8 x 10Kit part only: order kit K1, Hardware Solution Kit (56115394). | Not sold separately. Order Hardware Solution Kit (AD56115394) |
| 14 | Not sold separatelyAdvance no number printed | 2 | Scr-Button Soc Ss M4-0.7 x 12Kit part only: order kit K1, Hardware Solution Kit (56115394). | Not sold separately. Order Hardware Solution Kit (AD56115394) |
| 15 | Not sold separatelyAdvance no number printed | 1 | Wsh-Flt Ss .260 X 1.000 x .074Kit part only: order kit K1, Hardware Solution Kit (56115394). | Not sold separately. Order Hardware Solution Kit (AD56115394) |
| 16 | Not sold separatelyAdvance no number printed | 2 | Scr-Pan-Torx-Plastite-6-19 x .75Kit part only: order kit K1, Hardware Solution Kit (56115394) or K4, Solution Control Lever-Kit (56115446). | Not sold separately. Order Hardware Solution Kit (AD56115394) |
| 17 | Not sold separatelyAdvance no number printed | 4 | Wsh-Flt Ss .344 X 1.000 x .109Kit part only: order kit K1, Hardware Solution Kit (56115394). | Not sold separately. Order Hardware Solution Kit (AD56115394) |
| 18 | AD56111385Advance 56111385 | 1 | Hose,Spiral .500 | $12.08/EA |
| 19 | AD56115447Advance 56115447 | 1 | Plate-Retainer | $5.91/EA |
| 20 | AD56115467Advance 56115467 | 1 | Support-Deck Lever | $141.27/EA |
| 21 | AD56115291Advance 56115291 | 1 | Tank-Solution-Dark Gray | Call to confirm part: 800-440-6723Call 800-440-6723 |
| 22 | Not sold separatelyAdvance no number printed | 1 | Cap-Solution-Fill-YellowKit part only: order kit K2, Cap Solution Fill Kit (56115395). | Not sold separately. Order Cap Solution Fill Kit (AD56115395) |
| 23 | AD56115308Advance 56115308 | 1 | Plate-Retainer | $8.80/EA |
| 24 | Not sold separatelyAdvance no number printed | 1 | Solution Control Cable AssyKit part only: order kit K4, Solution Control Lever-Kit (56115446). | Not sold separately. Order Solution Control Lever-Kit (AD56115446) |
| 25 | AD56115336Advance 56115336 | 2 | Switch-Sealed (S4, S5) | $43.68/EA |
| 26 | Not sold separatelyAdvance no number printed | 1 | Cover-Solution Lever-TableKit part only: order kit K4, Solution Control Lever-Kit (56115446). | Not sold separately. Order Solution Control Lever-Kit (AD56115446) |
| 27 | AD56115355Advance 56115355 | 1 | Hose-Solenoid Adapter | $8.80/EA |
| 28 | AD56115388Advance 56115388 | 1 | Ball Valve-1/2 x 1/2 | $24.72/EA |
| 29 | AD56115413Advance 56115413 | 1 | Coupler-Barb-1/2 x 1/2 | $8.80/EA |
| 30 | AD56115439Advance 56115439 | 1 | Hose-Sprial-.500 | $14.70/EA |
| 31 | AD56115440Advance 56115440 | 1 | Hose-.75x27.00 | $9.65/EA |
| 32 | Not sold separatelyAdvance no number printed | 1 | Retainer-Drain Hose-SlideKit part only: order kit K5, Drain Hose Retainer Kit (56115524). | Not sold separately. Order Drain Hose Retainer Kit (AD56115524) |
| 33 | AD56344625Advance 56344625 | 1 | Clamp, Cable | Call to confirm part: 800-440-6723Call 800-440-6723 |
| 34 | AD56244969Advance 56244969 | 1 | Clamp- Hose SAE #12 | $11.69/EA |
| 35 | AD56315625Advance 56315625 | 1 | Barb, Coupler 1/2 x 3/4 | $11.69/EA |
| 36 | Not sold separatelyAdvance no number printed | 1 | Bushing .32 x .50 x .35Kit part only: order kit K2, Cap Solution Fill Kit (56115395). | Not sold separately. Order Cap Solution Fill Kit (AD56115395) |
| 37 | AD56478246Advance 56478246 | 1 | Tie, Cable | $11.69/EA |
| 38 | AD9095286000Advance 9095286000 | 2 | Gasket | $10.98/EA |
| 39 | AD9096595000Advance 9096595000 | 3 | Flat Tie Holder | $11.69/EA |
| 40 | Not sold separatelyAdvance no number printed | 1 | Filter WaterKit part only: order kit K3, Solution Filter Kit (56104351). | Not sold separately. Order Solution Filter Kit (AD56104351) |
| 41 | Not sold separatelyAdvance no number printed | 3 | Screw, Hex Thd To Hd M5 x 12Kit part only: order kit K1, Hardware Solution Kit (56115394). | Not sold separately. Order Hardware Solution Kit (AD56115394) |
| 42 | Not sold separatelyAdvance no number printed | 1 | Wsh Flt .193 x .875 x .060Kit part only: order kit K1, Hardware Solution Kit (56115394). | Not sold separately. Order Hardware Solution Kit (AD56115394) |
| 43 | Not sold separatelyAdvance no number printed | 1 | Wsh Flt SAE Ss 6Kit part only: order kit K1, Hardware Solution Kit (56115394) or K4, Solution Control Lever-Kit (56115446). | Not sold separately. Order Hardware Solution Kit (AD56115394) |
| 44 | Not sold separatelyAdvance no number printed | 1 | Spacer-Nylon-.25 x.14 x.18Kit part only: order kit K4, Solution Control Lever-Kit (56115446). | Not sold separately. Order Solution Control Lever-Kit (AD56115446) |
| 45 | AD56112771Advance 56112771 | 1 | Clamp, Hose SAE #10 | $11.69/EA |
| 46 | Not sold separatelyAdvance no number printed | 2 | Bushing, .26 x .37 x .28Kit part only: order kit K5, Drain Hose Retainer Kit (56115524). | Not sold separately. Order Drain Hose Retainer Kit (AD56115524) |
| 47 | Not sold separatelyAdvance no number printed | 2 | Wsh-Bow-.375 x . 578 x .06-.006Kit part only: order kit K1, Hardware Solution Kit (56115394). | Not sold separately. Order Hardware Solution Kit (AD56115394) |
| 48 | Not sold separatelyAdvance no number printed | 2 | Wshr Bow .39 x .50 x .07-.007Kit part only: order kit K5, Drain Hose Retainer Kit (56115524). | Not sold separately. Order Drain Hose Retainer Kit (AD56115524) |
| 49 | Not sold separatelyAdvance no number printed | 1 | Nut, Hex Nyl Loc SS M5-0.8Kit part only: order kit K1, Hardware Solution Kit (56115394). | Not sold separately. Order Hardware Solution Kit (AD56115394) |
| 50 | AD56115508Advance 56115508 | 1 | Clamp-P-1.00 | $66.22/EA |
| 51 | Not sold separatelyAdvance no number printed | 1 | Screw M5-.8 x 12 BTKit part only: order kit K1, Hardware Solution Kit (56115394). | Not sold separately. Order Hardware Solution Kit (AD56115394) |
| 52 | Not sold separatelyAdvance no number printed | 1 | Base, Retainer, Drain HoseKit part only: order kit K5, Drain Hose Retainer Kit (56115524). | Not sold separately. Order Drain Hose Retainer Kit (AD56115524) |
| 53 | Not sold separatelyAdvance no number printed | 2 | Nut, Hex Nyl Loc SS M6-1Kit part only: order kit K1, Hardware Solution Kit (56115394) or K5, Drain Hose Retainer Kit (56115524). | Not sold separately. Order Hardware Solution Kit (AD56115394) |
| – | AD56115394Advance 56115394 | 1 | Hardware Solution KitService kit K1. Contains items 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 41, 42, 43, 47, 49, 51, 53. | $26.25/EA |
| – | AD56115395Advance 56115395 | 1 | Cap Solution Fill KitService kit K2. Contains items 7, 9, 22, 36. | $47.12/EA |
| – | AD56104351Advance 56104351 | 1 | Solution Filter KitService kit K3. Contains item 40. | $33.79/EA |
| – | AD56115446Advance 56115446 | 1 | Solution Control Lever-KitService kit K4. Contains items 2, 3, 8, 16, 24, 26, 43, 44. | $110.58/EA |
| – | AD56115524Advance 56115524 | 1 | Drain Hose Retainer KitService kit K5. Contains items 4, 6, 32, 46, 48, 52, 53. | $54.94/EA |
Advance SC901 ST squeegee assy parts
The complete squeegee assembly with its casting, straps, knobs and blade kits. Manual pages 22, list 23.
Tap a part number to see that part.

| Item | Part number | Qty | Description and notes | Price |
|---|---|---|---|---|
| – | AD56115428Advance 56115428 | 1 | Squeegee Assy-42-Gum 28” & 34” Disc ModelsFits SC901 ST-28D, SC901 ST-34D, SC901 ST-28D NEXSYS, SC901 ST-34D NEXSYS. | $392.85/EA |
| – | AD56115380Advance 56115380 | 1 | Squeegee Assy-42-Red Gum 32” Cylindrical ModelFits SC901 ST-32C. | $509.73/EA |
| 1 | AD56115334Advance 56115334 | 1 | Squeegee Kit-Blade-Gum 28” & 34” Disc ModelsFits SC901 ST-28D, SC901 ST-34D, SC901 ST-28D NEXSYS, SC901 ST-34D NEXSYS. Includes both front and rear blades. | $46.55/EA |
| 1 | AD56115333Advance 56115333 | 1 | Squeegee Kit-Blade-Linatex 32” Cylindrical ModelFits SC901 ST-32C. Includes both front and rear blades. | $113.44/EA |
| 2 | AD56002856Advance 56002856 | 2 | Nut-Hex Nyl Loc Ss 5/16-18 | $10.30/EA |
| 3 | AD56003405Advance 56003405 | 2 | Nut, Hex Nyl Loc Ss M8-1.25 | $10.30/EA |
| 4 | Not sold separatelyAdvance no number printed | 2 | Scr Hex Ss M8-1.25 x 35mmKit part only: order kit K1, Wheel Squeegee Kit (56115449). | Not sold separately. Order Wheel Squeegee Kit (AD56115449) |
| 5 | Not sold separatelyAdvance no number printed | 6 | Wsh, Flt Ss 8mmKit part only: order kit K1, Wheel Squeegee Kit (56115449). | Not sold separately. Order Wheel Squeegee Kit (AD56115449) |
| 6 | AD56003649Advance 56003649 | 2 | Scr-Hex Thd To Hd SS 5/16-18 x 2.75 | $14.37/EA |
| 7 | Not sold separatelyAdvance no number printed | 2 | Button Plug-1.25Kit part only: order kit K1, Wheel Squeegee Kit (56115449). | Not sold separately. Order Wheel Squeegee Kit (AD56115449) |
| 8 | Not sold separatelyAdvance no number printed | 2 | WheelKit part only: order kit K1, Wheel Squeegee Kit (56115449). | Not sold separately. Order Wheel Squeegee Kit (AD56115449) |
| 9 | AD56115271Advance 56115271 | 1 | Casting-Squeegee-Alum | $202.75/EA |
| 10 | AD56115293Advance 56115293 | 1 | Strap Assy-Squeegee-Rear-42 | $87.37/EA |
| 11 | AD56370711Advance 56370711 | 2 | Nut Thumb | $21.85/EA |
| 12 | Not sold separatelyAdvance no number printed | 2 | Bushing, NylonKit part only: order kit K1, Wheel Squeegee Kit (56115449). | Not sold separately. Order Wheel Squeegee Kit (AD56115449) |
| 13 | AD54647AAdvance 54647A | 2 | Knob, M8 x 30 | $13.76/EA |
| 14 | AD60546AAdvance 60546A | 1 | Strap, Front Squeegee 42 | $57.77/EA |
| 15 | AD56115468Advance 56115468 | 1 | Leveler 5/16-18 x 1.0 | $4.27/EA |
| 16 | AD56009141Advance 56009141 | 1 | Nut-Hex Jam Ss 5/16-18 | $12.85/EA |
| – | AD56115334Advance 56115334 | 1 | Squeegee Kit-Blade-GumFits SC901 ST-28D, SC901 ST-34D, SC901 ST-28D NEXSYS, SC901 ST-34D NEXSYS. Includes both front and rear blades. Blade kit for assembly 56115428. | $46.55/EA |
| – | AD56115333Advance 56115333 | 1 | Squeegee Kit-Blade-Red GumFits SC901 ST-28D, SC901 ST-34D, SC901 ST-28D NEXSYS, SC901 ST-34D NEXSYS. Optional, not included. Includes both front and rear blades. Blade kit for assembly 56115428. | $113.44/EA |
| – | AD56115335Advance 56115335 | 1 | Squeegee Kit-Blade-PuFits SC901 ST-28D, SC901 ST-34D, SC901 ST-28D NEXSYS, SC901 ST-34D NEXSYS. Optional, not included. Includes both front and rear blades. Blade kit for assembly 56115428. | $147.57/EA |
| – | AD56115333Advance 56115333 | 1 | Squeegee Kit-Blade-Red GumFits SC901 ST-32C. Includes both front and rear blades. Blade kit for assembly 56115380. | $113.44/EA |
| – | AD56115334Advance 56115334 | 1 | Squeegee Kit-Blade-GumFits SC901 ST-32C. Optional, not included. Includes both front and rear blades. Blade kit for assembly 56115380. | $46.55/EA |
| – | AD56115335Advance 56115335 | 1 | Squeegee Kit-Blade-PuFits SC901 ST-32C. Optional, not included. Includes both front and rear blades. Blade kit for assembly 56115380. | $147.57/EA |
| – | AD56115449Advance 56115449 | 1 | Wheel Squeegee KitService kit K1. Contains items 4, 5, 7, 8, 12. | $39.43/EA |
Advance SC901 ST squeegee system parts
The squeegee mount, lift lever, turnbuckle, cable, springs and seal. Manual pages 24, list 25.
Tap a part number to see that part.

| Item | Part number | Qty | Description and notes | Price |
|---|---|---|---|---|
| 1 | Not sold separatelyAdvance no number printed | 2 | Nut, Hex Nyl Loc-Thin Ss 3/8-16Kit part only: order kit K1, Hardware Squeegee Kit (56115414). | Not sold separately. Order Hardware Squeegee Kit (AD56115414) |
| 2 | Not sold separatelyAdvance no number printed | 1 | Nut, Hex Nyl Loc Ss 1/2-20Kit part only: order kit K1, Hardware Squeegee Kit (56115414). | Not sold separately. Order Hardware Squeegee Kit (AD56115414) |
| 3 | Not sold separatelyAdvance no number printed | 4 | Wsh-Flt SAE Ss 3/8Kit part only: order kit K1, Hardware Squeegee Kit (56115414). | Not sold separately. Order Hardware Squeegee Kit (AD56115414) |
| 4 | Not sold separatelyAdvance no number printed | 2 | Nut, Hex Nyl Loc-Thin Ss 5/16-24Kit part only: order kit K1, Hardware Squeegee Kit (56115414). | Not sold separately. Order Hardware Squeegee Kit (AD56115414) |
| 5 | Not sold separatelyAdvance no number printed | 2 | Nut, Hex Nyl Loc Ss M6-1Kit part only: order kit K1, Hardware Squeegee Kit (56115414). | Not sold separately. Order Hardware Squeegee Kit (AD56115414) |
| 6 | Not sold separatelyAdvance no number printed | 2 | Scr Hex Thdtohd Ss M6-1.0 x 25mmKit part only: order kit K1, Hardware Squeegee Kit (56115414). | Not sold separately. Order Hardware Squeegee Kit (AD56115414) |
| 7 | Not sold separatelyAdvance no number printed | 1 | Wsh-Flt .392 x 1.00 x .075Kit part only: order kit K1, Hardware Squeegee Kit (56115414) or K2, Lever Squeegee Kit (56115415). | Not sold separately. Order Hardware Squeegee Kit (AD56115414) |
| 8 | Not sold separatelyAdvance no number printed | 2 | Wsh-Flt Ss .266 X .906 x .060Kit part only: order kit K1, Hardware Squeegee Kit (56115414). | Not sold separately. Order Hardware Squeegee Kit (AD56115414) |
| 9 | Not sold separatelyAdvance no number printed | 1 | Scr Flt Soc Ss M8-1.25 x 16mmKit part only: order kit K1, Hardware Squeegee Kit (56115414) or K2, Lever Squeegee Kit (56115415). | Not sold separately. Order Hardware Squeegee Kit (AD56115414) |
| 10 | Not sold separatelyAdvance no number printed | 3 | Scr Hex Loc Ss M8-1.25 x 20mmKit part only: order kit K1, Hardware Squeegee Kit (56115414) or K2, Lever Squeegee Kit (56115415). | Not sold separately. Order Hardware Squeegee Kit (AD56115414) |
| 11 | AD56104231Advance 56104231 | 2 | Caster Wheel | $33.79/EA |
| 12 | AD56115496Advance 56115496 | 1 | Squeegee-Mount-AluminumAlso in kit K4, Squeegee Mount Kit (56115527). | $43.89/EA |
| 13 | AD56115262Advance 56115262 | 2 | Bearing-Flange | $11.69/EA |
| 14 | AD56115284Advance 56115284 | 1 | Rod End-1/2 | $35.76/EA |
| 15 | AD56115285Advance 56115285 | 1 | Bracket Weldment-Squeegee | $87.37/EA |
| 16 | AD56115287Advance 56115287 | 1 | Turnbuckle Assembly-9.40 Inch | $82.85/EA |
| 17 | Not sold separatelyAdvance no number printed | 1 | Lever-Squeegee-Lift TSB-FC-2017-026Kit part only: order kit K2, Lever Squeegee Kit (56115415) or K3, Handle/Squeezee Lever Kit (56115471). | Not sold separately. Order Lever Squeegee Kit (AD56115415) |
| 18 | Not sold separatelyAdvance no number printed | 1 | Knob-M8-1.25Kit part only: order kit K2, Lever Squeegee Kit (56115415). | Not sold separately. Order Lever Squeegee Kit (AD56115415) |
| 19 | AD56383973Advance 56383973 | 1 | Cable Tie-Black-8” | $4.27/EA |
| 20 | AD56115428Advance 56115428 | 1 | Squeegee Assy-42-Gum 28” & 34” Disc Models / Includes Gum Rubber BladesFits SC901 ST-28D, SC901 ST-34D, SC901 ST-28D NEXSYS, SC901 ST-34D NEXSYS. | $392.85/EA |
| 20 | AD56115380Advance 56115380 | 1 | Squeegee Assy-42-Red Gum 32” Cylindrical Models / Includes Red Gum Rubber BladesFits SC901 ST-32C. | $509.73/EA |
| 21 | AD56115429Advance 56115429 | 1 | Cable Assy | $29.53/EA |
| 22 | AD56315295Advance 56315295 | 2 | Spring Extension | $23.35/EA |
| 23 | Not sold separatelyAdvance no number printed | 3 | Bushing .32 x.50 x.35Kit part only: order kit K2, Lever Squeegee Kit (56115415). | Not sold separately. Order Lever Squeegee Kit (AD56115415) |
| 24 | AD56117305Advance 56117305 | 1 | Seal-SqueegeeAlso in kit K4, Squeegee Mount Kit (56115527). | $4.82/EA |
| 25 | Not sold separatelyAdvance no number printed | 2 | Wsh, Bowed .516 x .906 x .008Kit part only: order kit K1, Hardware Squeegee Kit (56115414). | Not sold separately. Order Hardware Squeegee Kit (AD56115414) |
| – | AD56115414Advance 56115414 | 1 | Hardware Squeegee KitService kit K1. Contains items 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 25. | $23.35/EA |
| – | AD56115415Advance 56115415 | 1 | Lever Squeegee KitService kit K2. Contains items 7, 9, 10, 17, 18, 23. | $93.70/EA |
| – | AD56115471Advance 56115471 | 1 | Handle/Squeezee Lever KitService kit K3. Contains item 17. | $115.53/EA |
| – | AD56115527Advance 56115527 | 1 | Squeegee Mount KitService kit K4. Contains items 12, 24. | $59.88/EA |
Advance SC901 ST ladder diagram key parts
Ladder diagram key from Advance's parts list. Manual page 27.
| Item | Part number | Qty | Description and notes | Price |
|---|---|---|---|---|
| BAT | No number printedAdvance no number printed | Battery-36VDCNo part number printed. | Call to confirm part: 800-440-6723Call 800-440-6723 | |
| CB1 | AD56315256Advance 56315256 | 1 | Circuit Breaker, 30 Amp | $13.07/EA |
| CB2 | AD56315256Advance 56315256 | 1 | Circuit Breaker-30 Amp | $13.07/EA |
| CB3 | AD56315256Advance 56315256 | 1 | Circuit Breaker-30 Amp | $13.07/EA |
| CB4 | AD56413822Advance 56413822 | 1 | Circuit Breaker, 20 Amp | $30.52/EA |
| CB5 | AD56115385Advance 56115385 | 1 | Breaker-Circuit-2.5 Amp | $21.85/EA |
| E1 | No number printedAdvance no number printed | Delta Q Charger (Optional)No part number printed. | Call to confirm part: 800-440-6723Call 800-440-6723 | |
| F1 | AD56115432Advance 56115432 | 1 | Fuse-150 Amp | $18.96/EA |
| K1 | AD40892AAdvance 40892A | 1 | Relay Dpdt 36vdc | $82.06/EA |
| K2 | AD56395450Advance 56395450 | 1 | Contactor 36v (Brush) | $95.04/EA |
| K3 | AD56395455Advance 56395455 | 1 | Contactor 36v, 100 Amp (Vacuum) | $52.74/EA |
| L1 | AD56116248Advance 56116248 | 1 | Valve-Solenoid-36vdc | $140.12/EA |
| L2 | No number printedAdvance no number printed | Detergent Pump (Optional)No part number printed. | Call to confirm part: 800-440-6723Call 800-440-6723 | |
| M1 | AD56115378Advance 56115378 | 1 | Transaxle-36 Volts | $2,471.78/EA |
| M2 | AD56115377Advance 56115377 | 1 | Motor-Gear-Unit 36 Volt (Disc) | $1,046.88/EA |
| M2 | AD56315611Advance 56315611 | 1 | Motor, 36 Vdc, .75 Hp, 1800 Rpm (Cylindrical) | $1,308.69/EA |
| M3 | AD56115377Advance 56115377 | 1 | Motor-Gear-Unit 36 Volt (Disc) | $1,046.88/EA |
| M3 | AD56315611Advance 56315611 | 1 | Motor, 36 Vdc, .75 Hp, 1800 Rpm (Cylindrical) | $1,308.69/EA |
| M4 | AD56115397Advance 56115397 | 1 | Motor-Vac-Kit | $334.36/EA |
| P1 | AD56115477Advance 56115477 | 1 | Controller-Speed | Call to confirm part: 800-440-6723Call 800-440-6723 |
| P2 | AD56115296Advance 56115296 | 1 | Gauge-Battery-Hour | $105.15/EA |
| P3 | No number printedAdvance no number printed | Detergent Module (Optional)No part number printed. | Call to confirm part: 800-440-6723Call 800-440-6723 | |
| R1 | AD56115514Advance 56115514 | 1 | Potentiometer Assembly-100K | $49.30/EA |
| R2 | AD56115515Advance 56115515 | 1 | Potentiometer Assembly-5K | $54.26/EA |
| S1 | AD1462888000Advance 1462888000 | 1 | Switch, Key with Water Proof Cup | $68.96/EA |
| S4 | AD56115336Advance 56115336 | 1 | Switch-Sealed | $43.68/EA |
| S5 | AD56115336Advance 56115336 | 1 | Switch-Sealed | $43.68/EA |
Advance SC901 ST options & accessories parts
Options, accessories, squeegee blade kits and brushes Advance lists for the SC901 ST. Lines marked * are optional and not included. Manual page 28.
| Item | Part number | Qty | Description and notes | Price |
|---|---|---|---|---|
| – | AD56115373Advance 56115373 | 1 | Charger-On Board-KitOptional, not included. Option. | $1,800.29/EA |
| – | AD56115383Advance 56115383 | 1 | Detergent-KitOptional, not included. Option. | $974.35/EA |
| – | AD56115416Advance 56115416 | 1 | TrackClean SC900 Kit-US RDROptional, not included. Option. | $1,027.88/EA |
| – | AD56115417Advance 56115417 | 1 | TrackClean SC900 Kit-USOptional, not included. Option. | Call to confirm part: 800-440-6723Call 800-440-6723 |
| – | AD56397453Advance 56397453 | 6 | Indicator-Battery Level (1 per battery)Optional, not included. Accessory. | Call to confirm part: 800-440-6723Call 800-440-6723 |
| – | AD56314981Advance 56314981 | 1 | Kit Battery WateringOptional, not included. Accessory. | $538.62/EA |
| – | AD56383571Advance 56383571 | 1 | Programmer-UserOptional, not included. Accessory. | $1,398.42/EA |
| – | AD56383572Advance 56383572 | 1 | Programmer-Cable-MolexOptional, not included. Accessory. | $143.58/EA |
| – | AD56104190Advance 56104190 | 1 | EcoFlex Bottle AssyOptional, not included. Accessory. | $196.45/EA |
| – | AD56115458Advance 56115458 | 1 | Scrub Spring Kit (Disc Models Only)Fits SC901 ST-28D, SC901 ST-34D, SC901 ST-28D NEXSYS, SC901 ST-34D NEXSYS. Optional, not included. Accessory. | $152.73/EA |
| – | AD56115590Advance 56115590 | 1 | Poster-SC901 ServiceOptional, not included. Revised or new since the last update. Accessory. | $22.93/EA |
| – | AD56044731Advance 56044731 | 1 | Literature PackAccessory. | Call to confirm part: 800-440-6723Call 800-440-6723 |
| – | AD56115334Advance 56115334 | 1 | Squeegee Kit-Blade-GumFits SC901 ST-28D, SC901 ST-34D, SC901 ST-28D NEXSYS, SC901 ST-34D NEXSYS. Includes both front and rear blades. Blade kit for assembly 56115428. | $46.55/EA |
| – | AD56115333Advance 56115333 | 1 | Squeegee Kit-Blade-Red GumFits SC901 ST-28D, SC901 ST-34D, SC901 ST-28D NEXSYS, SC901 ST-34D NEXSYS. Optional, not included. Includes both front and rear blades. Blade kit for assembly 56115428. | $113.44/EA |
| – | AD56115335Advance 56115335 | 1 | Squeegee Kit-Blade-PuFits SC901 ST-28D, SC901 ST-34D, SC901 ST-28D NEXSYS, SC901 ST-34D NEXSYS. Optional, not included. Includes both front and rear blades. Blade kit for assembly 56115428. | $147.57/EA |
| – | AD56115333Advance 56115333 | 1 | Squeegee Kit-Blade-Red GumFits SC901 ST-32C. Includes both front and rear blades. Blade kit for assembly 56115380. | $113.44/EA |
| – | AD56115334Advance 56115334 | 1 | Squeegee Kit-Blade-GumFits SC901 ST-32C. Optional, not included. Includes both front and rear blades. Blade kit for assembly 56115380. | $46.55/EA |
| – | AD56115335Advance 56115335 | 1 | Squeegee Kit-Blade-PuFits SC901 ST-32C. Optional, not included. Includes both front and rear blades. Blade kit for assembly 56115380. | $147.57/EA |
| – | AD56505800Advance 56505800 | 2 | Short Trim Pad HolderFits SC901 ST-28D, SC901 ST-28D NEXSYS. Optional, not included. 28” Disc Scrub Brushes. | $101.41/EA |
| – | AD56505801Advance 56505801 | 2 | Magna Grit 46Fits SC901 ST-28D, SC901 ST-28D NEXSYS. Optional, not included. 28” Disc Scrub Brushes. | $270.16/EA |
| – | AD56505802Advance 56505802 | 2 | Dyna Grit 80Fits SC901 ST-28D, SC901 ST-28D NEXSYS. Optional, not included. 28” Disc Scrub Brushes. | $187.09/EA |
| – | AD56505803Advance 56505803 | 2 | AgLite Grit 500Fits SC901 ST-28D, SC901 ST-28D NEXSYS. Optional, not included. 28” Disc Scrub Brushes. | $229.62/EA |
| – | AD56505804Advance 56505804 | 2 | ProleneFits SC901 ST-28D, SC901 ST-28D NEXSYS. Optional, not included. 28” Disc Scrub Brushes. | $92.31/EA |
| – | AD56505805Advance 56505805 | 2 | ProLiteFits SC901 ST-28D, SC901 ST-28D NEXSYS. Optional, not included. 28” Disc Scrub Brushes. | $98.75/EA |
| – | AD56505806Advance 56505806 | 2 | Union MixFits SC901 ST-28D, SC901 ST-28D NEXSYS. Optional, not included. 28” Disc Scrub Brushes. | $96.86/EA |
| – | AD56505807Advance 56505807 | 2 | MidGrit 240Fits SC901 ST-28D, SC901 ST-28D NEXSYS. Optional, not included. 28” Disc Scrub Brushes. | $187.09/EA |
| – | AD56505808Advance 56505808 | 2 | MidLite Grit 180Fits SC901 ST-28D, SC901 ST-28D NEXSYS. Optional, not included. 28” Disc Scrub Brushes. | $187.09/EA |
| – | AD56505195Advance 56505195 | 2 | Pad Retainer for 56505750Fits SC901 ST-28D, SC901 ST-28D NEXSYS. Optional, not included. 28” Disc Scrub Brushes. | $30.34/EA |
| – | AD56505780Advance 56505780 | 2 | Short Trim Pad HolderFits SC901 ST-34D, SC901 ST-34D NEXSYS. Optional, not included. 34” Disc Scrub Brushes. | $264.99/EA |
| – | AD56505781Advance 56505781 | 2 | Magna Grit 46Fits SC901 ST-34D, SC901 ST-34D NEXSYS. Optional, not included. 34” Disc Scrub Brushes. | $408.60/EA |
| – | AD56505782Advance 56505782 | 2 | Dyna Grit 80Fits SC901 ST-34D, SC901 ST-34D NEXSYS. Optional, not included. 34” Disc Scrub Brushes. | $290.97/EA |
| – | AD56505783Advance 56505783 | 2 | AgLite Grit 500Fits SC901 ST-34D, SC901 ST-34D NEXSYS. Optional, not included. 34” Disc Scrub Brushes. | $236.02/EA |
| – | AD56505784Advance 56505784 | 2 | ProleneFits SC901 ST-34D, SC901 ST-34D NEXSYS. Optional, not included. 34” Disc Scrub Brushes. | $94.59/EA |
| – | AD56505785Advance 56505785 | 2 | ProLiteFits SC901 ST-34D, SC901 ST-34D NEXSYS. Optional, not included. 34” Disc Scrub Brushes. | $88.51/EA |
| – | AD56505786Advance 56505786 | 2 | Union MixFits SC901 ST-34D, SC901 ST-34D NEXSYS. Optional, not included. 34” Disc Scrub Brushes. | $113.81/EA |
| – | AD56505787Advance 56505787 | 2 | MidGrit 240Fits SC901 ST-34D, SC901 ST-34D NEXSYS. Optional, not included. 34” Disc Scrub Brushes. | $256.79/EA |
| – | AD56505788Advance 56505788 | 2 | MidLite Grit 180Fits SC901 ST-34D, SC901 ST-34D NEXSYS. Optional, not included. 34” Disc Scrub Brushes. | $241.48/EA |
| – | AD56505195Advance 56505195 | 2 | Pad Retainer for 56505750Fits SC901 ST-34D, SC901 ST-34D NEXSYS. Optional, not included. 34” Disc Scrub Brushes. | $30.34/EA |
| – | AD56407473Advance 56407473 | 2 | Soft NylonFits SC901 ST-32C. Optional, not included. 32” Cylindrical Scrub Brushes. | $268.77/EA |
| – | AD56407474Advance 56407474 | 2 | Hard NylonFits SC901 ST-32C. Optional, not included. 32” Cylindrical Scrub Brushes. | $284.28/EA |
| – | AD56407475Advance 56407475 | 2 | ProleneFits SC901 ST-32C. Optional, not included. 32” Cylindrical Scrub Brushes. | $185.36/EA |
| – | AD56407476Advance 56407476 | 2 | MidLite Grit 180Fits SC901 ST-32C. Optional, not included. 32” Cylindrical Scrub Brushes. | $339.23/EA |
| – | AD56407477Advance 56407477 | 2 | Dyna Grit 80Fits SC901 ST-32C. Optional, not included. 32” Cylindrical Scrub Brushes. | $319.45/EA |
| – | AD56407478Advance 56407478 | 2 | Magna Grit 46Fits SC901 ST-32C. Optional, not included. 32” Cylindrical Scrub Brushes. | $378.03/EA |
Advance SC901 ST recommended spare parts
Advance's recommended spare parts: wear parts, ordinary maintenance and extra ordinary maintenance. Manual page 29.
| Item | Part number | Qty | Description and notes | Price |
|---|---|---|---|---|
| – | AD56315677Advance 56315677 | 4 | Carbon BrushRecommended spare: wear part. | $48.12/EA |
| – | AD56116107Advance 56116107 | 1 | Vacuum Motor Brush KitRecommended spare: wear part. | $17.46/EA |
| – | AD56115315Advance 56115315 | 2 | Belt-Auto TensionRecommended spare: wear part. | $13.07/EA |
| – | AD56412287Advance 56412287 | 2 | Motor Brush/Spring KitRecommended spare: wear part. | $211.28/EA |
| – | AD56397139Advance 56397139 | 4 | Carbon BrushRecommended spare: wear part. | $90.70/EA |
| – | AD56397138Advance 56397138 | 4 | Brush SpringRecommended spare: wear part. | $16.09/EA |
| – | AD56115334Advance 56115334 | 1 | Squeegee Kit-Blade-GumIncludes both front and rear blades. Recommended spare: wear part. | $46.55/EA |
| – | AD56115333Advance 56115333 | 1 | Squeegee Kit-Blade-Red GumIncludes both front and rear blades. Recommended spare: wear part. | $113.44/EA |
| – | AD56115335Advance 56115335 | 1 | Squeegee Kit-Blade-PuIncludes both front and rear blades. Recommended spare: wear part. | $147.57/EA |
| – | AD56115333Advance 56115333 | 1 | Squeegee Kit-Blade-Red GumIncludes both front and rear blades. Recommended spare: wear part. | $113.44/EA |
| – | AD56115334Advance 56115334 | 1 | Squeegee Kit-Blade-GumIncludes both front and rear blades. Recommended spare: wear part. | $46.55/EA |
| – | AD56115335Advance 56115335 | 1 | Squeegee Kit-Blade-PuIncludes both front and rear blades. Recommended spare: wear part. | $147.57/EA |
| – | AD56112306Advance 56112306 | 1 | Kit-Bristle Skirt 28 (28” models / Includes two skirts and mounting hardware)Fits SC901 ST-28D, SC901 ST-28D NEXSYS. Recommended spare: wear part. | $167.59/EA |
| – | AD56112307Advance 56112307 | 1 | Kit-Bristle Skirt 34 (34” models / Includes two skirts and mounting hardware)Fits SC901 ST-34D, SC901 ST-34D NEXSYS. Recommended spare: wear part. | $187.09/EA |
| – | AD56115391Advance 56115391 | 1 | Castor Wheel-KitRecommended spare: ordinary maintenance. | $414.70/EA |
| – | AD56115395Advance 56115395 | 1 | Cap Solution Fill KitRecommended spare: ordinary maintenance. | $47.12/EA |
| – | AD56104351Advance 56104351 | 1 | Solution Filter KitRecommended spare: ordinary maintenance. | $33.79/EA |
| – | AD56115393Advance 56115393 | 1 | Chain-Grounding-KitRecommended spare: extra ordinary maintenance. | $20.48/EA |
| – | AD56115305Advance 56115305 | 1 | Knob-2.00 X .62Recommended spare: extra ordinary maintenance. | $17.46/EA |
| – | AD1462888000Advance 1462888000 | 1 | Switch, Key with Water Proof Cup (S1)Recommended spare: extra ordinary maintenance. | $68.96/EA |
| – | AD56115385Advance 56115385 | 1 | Breaker-Circuit-2.5 Amp (CB5)Recommended spare: extra ordinary maintenance. | $21.85/EA |
| – | AD56115432Advance 56115432 | 1 | Fuse-150 Amp (F1)Recommended spare: extra ordinary maintenance. | $18.96/EA |
| – | AD56115516Advance 56115516 | 1 | Controller-Speed (P1)Recommended spare: extra ordinary maintenance. | $317.58/EA |
| – | AD56315256Advance 56315256 | 1 | Circuit Breaker, 30 Amp (CB1, CB2, CB3)Recommended spare: extra ordinary maintenance. | $13.07/EA |
| – | AD56395450Advance 56395450 | 1 | Contactor 36v (K2)Recommended spare: extra ordinary maintenance. | $95.04/EA |
| – | AD56395455Advance 56395455 | 1 | Contactor 36v, 100 Amp (K3)Recommended spare: extra ordinary maintenance. | $52.74/EA |
| – | AD56413822Advance 56413822 | 1 | Circuit Breaker, 20 Amp (CB4)Recommended spare: extra ordinary maintenance. | $30.52/EA |
| – | AD40892AAdvance 40892A | 1 | Relay Dpdt 36vdc (K1)Recommended spare: extra ordinary maintenance. | $82.06/EA |
| – | AD56104164Advance 56104164 | 1 | Gasket-Recovery TankRecommended spare: extra ordinary maintenance. | $29.53/EA |
| – | AD56115343Advance 56115343 | 1 | Vac Hose AssyRecommended spare: extra ordinary maintenance. | $20.48/EA |
| – | AD56115436Advance 56115436 | 1 | Hose-Drain-PuRecommended spare: extra ordinary maintenance. | $84.49/EA |
| – | AD56115406Advance 56115406 | 1 | Link Arm Scrub KitRecommended spare: extra ordinary maintenance. | $64.01/EA |
| – | AD56115411Advance 56115411 | 1 | 32C Spring KitFits SC901 ST-32C. Recommended spare: extra ordinary maintenance. | $160.57/EA |
| – | AD56115515Advance 56115515 | 1 | Potentiometer Assembly-5KRecommended spare: extra ordinary maintenance. | $54.26/EA |
| – | AD56115514Advance 56115514 | 1 | Potentiometer ASM-100KRecommended spare: extra ordinary maintenance. | $49.30/EA |
| – | AD56116891Advance 56116891 | 1 | Solenoid Seal-KitRecommended spare: extra ordinary maintenance. | $61.27/EA |
| – | AD56115337Advance 56115337 | 1 | Knob-M8-1.25Recommended spare: extra ordinary maintenance. | $31.05/EA |
| – | AD56115405Advance 56115405 | 1 | Spring-28D/34D-KitFits SC901 ST-28D, SC901 ST-34D, SC901 ST-28D NEXSYS, SC901 ST-34D NEXSYS. Recommended spare: extra ordinary maintenance. | $138.74/EA |
| – | AD56115406Advance 56115406 | 1 | Link Arm-Scrub-KitRecommended spare: extra ordinary maintenance. | $64.01/EA |
| – | AD56116248Advance 56116248 | 1 | Valve-Solenoid-36vdcRecommended spare: extra ordinary maintenance. | $140.12/EA |
| – | AD56115448Advance 56115448 | 1 | Wheel Brush Skirt-KitRecommended spare: extra ordinary maintenance. | $26.25/EA |
| – | AD56115449Advance 56115449 | 1 | Wheel Squeegee KitRecommended spare: extra ordinary maintenance. | $39.43/EA |
| – | AD56115293Advance 56115293 | 1 | Strap Assy-Squeegee-Rear-42Recommended spare: extra ordinary maintenance. | $87.37/EA |
| – | AD56117305Advance 56117305 | 1 | Seal-SqueegeeRecommended spare: extra ordinary maintenance. | $4.82/EA |
| – | AD56370711Advance 56370711 | 2 | Nut ThumbRecommended spare: extra ordinary maintenance. | $21.85/EA |
| – | AD56104231Advance 56104231 | 2 | Caster WheelRecommended spare: extra ordinary maintenance. | $33.79/EA |
New to your Advance SC901 ST? Start here
Set up, run and look after your SC901 ST. Everything here comes from Advance's instructions for use, rewritten in plain steps, with the parts you need linked to the list above.
1Check the batteries
- Check that the batteries are connected to the machine.
- Turn the key switch on and read the battery and hour gauge. A 10-segment bar shows the charge, empty on the left and full on the right.
- Charge the batteries fully before each use.
- Check the charger maker's manual for the battery type setting if your machine has an onboard charger.
Source: Advance SC901 ST Instructions for Use, form 56091217 (3/2019, rev. B), page A-9. SES ref PF-NPTO-3K5O
2Fill the tank and fit the squeegee
- Fill the solution tank with no more than 30 gal (113.5 L) of water mixed with the right cleaning chemical. Follow the dilution on the chemical label.
- Use only low-foaming, non-flammable liquid detergents made for machines. Keep the water at or below 130 °F (54.4 °C).
- Slide the squeegee onto the squeegee mount bracket and tighten the thumb nuts by hand. Do not use tools.
- Connect the recovery hose to the squeegee inlet.
Source: Advance SC901 ST Instructions for Use, form 56091217 (3/2019, rev. B), page A-13. SES ref PF-NPTO-3K5O
3Fit the brushes or pads
- Turn the key switch off and remove the key. Make sure the scrub deck is raised.
- Disc models: put the pads on the pad holders (AD56505800 / AD56505780) if you use pads. Line up the lugs on the brush with the holes in the mounting plate and turn to lock. Turn the outside edge of the brush toward the rear of the machine.
- Cylindrical model: loosen the black knob on top of each idler assembly and remove the idler assemblies. Slide the brush into the housing, lift slightly, then push and turn until it seats.
- Put the idler assemblies back on.
Source: Advance SC901 ST Instructions for Use, form 56091217 (3/2019, rev. B), pages A-11 and A-12. SES ref PF-NPTO-3K5O
4Scrub the floor
- Turn the key switch on. Push the drive paddle forward to go forward or pull it back to reverse. The speed control knob sets the top speed.
- Lower the scrub deck with the deck lever. The machine is ready to scrub when it starts to move.
- Lower the squeegee with the squeegee lever. The vacuum motor turns on when the squeegee goes down.
- Keep the machine moving while the brushes turn, at a slow walking speed. Standing still can damage the floor.
- On a ramp, clean only while you drive up it. Avoid sudden stops and abrupt sharp turns.
Source: Advance SC901 ST Instructions for Use, form 56091217 (3/2019, rev. B), page A-16. SES ref PF-NPTO-3K5O
Advance SC901 ST troubleshooting
Problems, likely causes and fixes from Advance's troubleshooting table. Turn the key switch off and remove the key before you open any access panel.
| Likely cause | Fix | Part |
|---|---|---|
| Poor water pick-up | ||
| Worn or torn squeegee blades | Reverse or replace the squeegee blades (AD56115334 / AD56115333). | |
| Squeegee out of adjustment | Adjust it so the blades touch the floor evenly across the whole width. | |
| Squeegee seal clogged or missing | Clean or replace the squeegee seal (AD56117305). | |
| Recovery tank full | Empty the recovery tank. | |
| Recovery tank cover gasket leak | Replace the gasket (AD56104164) or seat the cover properly. | |
| Poor scrubbing performance | ||
| Worn brush or pad | Rotate or replace the brushes. | |
| Inadequate solution flow or no solution | ||
| Solution lines, valves, filter or trough clogged | Flush the lines and the trough and clean the solution filter (AD56104351). | |
| Machine does not run | ||
| Battery connector disconnected | Reconnect the battery connectors. | |
| Tripped 2.5 Amp circuit breaker | Check for an electrical short circuit and reset the breaker (AD56115385). | |
| No FWD/REV wheel drive | ||
| Tripped 30 Amp circuit breaker | Check for drive motor overload. | |
| Poor sweeping performance (cylindrical system) | ||
| Hopper full | Empty and clean the hopper. | |
| No detergent flow (EcoFlex models only) | ||
| Empty detergent cartridge | Fill the detergent cartridge (AD56104408). | |
Source: Advance SC901 ST Instructions for Use, form 56091217 (3/2019, rev. B), page A-22. SES ref PF-ADHO-6FBE
Still stuck? SES is an Advance service center. Call 800-440-6723 and have your model and serial number ready.
Advance SC901 ST maintenance schedule
Advance's after-use steps, maintenance schedule and lubrication notes. Turn the key switch off and remove the key before you change brushes or open any access panel.
| Task | How often | Part |
|---|---|---|
| Raise the brushes and the squeegee. Turn the key switch off and remove the key. | After every use | |
| Empty the solution tank through the solution drain hose and rinse it. Check the solution hoses and replace any that are kinked or damaged. | After every use | |
| Empty the recovery tank through its drain hose. Rinse the tank and the shut-off float, and check the recovery and vacuum hoses. | After every use | |
| Remove the brushes or pad holders by hand, rinse them with warm water and hang them to dry. | After every use | |
| Remove the squeegee, rinse it with warm water and hang it to dry. | After every use | |
| Plug in the charger every day and let it finish a full charge. This can take 8 to 12 hours. | After every use | |
| Charge the batteries. | Daily | |
| Check and clean the tanks and hoses. | Daily | |
| Check and clean the brushes or pads. | Daily | |
| Check and clean the squeegee. Reverse or replace the squeegee blades (AD56115334 / AD56115333) if they are cut, torn, wavy or worn. | Daily | |
| Check and clean the vacuum shut-off float. | Daily | |
| Empty and clean the debris catch tray in the recovery tank. | Daily | |
| Check the water level in each battery cell. Use distilled or demineralized water and do not overfill. | Weekly | |
| Inspect the scrub housing skirt. On disc models it is a bristle skirt (AD56112306 / AD56112307). | Weekly | |
| Inspect and clean the solution filter (AD56104351). | Weekly | |
| EcoFlex models: purge the detergent system, also when you change chemicals. | Weekly | |
| Apply light machine oil to the squeegee linkage pivot points, the squeegee tool end wheels, the scrub deck bumper wheel and the brush linkage pivot points. | Monthly | |
| Grease the rear caster wheel swivels. | Every quarter | |
| Have the vacuum motor carbon brushes checked once a year or after 300 operating hours (vacuum motor brush kit (AD56116107)). Call SES service: 800-440-6723. | Yearly | |
| Have the brush motor and drive motor carbon brushes checked every 500 hours or once a year. Call SES service: 800-440-6723. | Yearly |
Source: Advance SC901 ST Instructions for Use, form 56091217 (3/2019, rev. B), pages A-6, A-14, A-18, A-19 and A-20. SES ref PF-2ET7-PAD7
Advance SC901 ST specifications
From the technical specifications table in Advance's instructions for use. Values are as installed and tested on the unit.
| Cleaning path | 28D: 28 in (71.1 cm); 34D: 34 in (86.3 cm); 32C: 31 in (78.7 cm) |
|---|---|
| Brushes | 28D: two 14 in (35.5 cm) discs; 34D: two 17 in (43.1 cm) discs; 32C: two cylindrical, 5.5 in (13.9 cm) across and 31 in (78.7 cm) long |
| Brush speed | 28D and 34D: 250 rpm; 32C: 900 rpm |
| Brush pressure | 28D and 34D: 90, 145 or 200 lb (41, 65 or 90 kg); 32C: 75, 100 or 125 lb (34, 45 or 56 kg) |
| Brush motors | 0.75 hp each |
| Batteries | 36 V, 310 Ah |
| Solution tank | 30 gal (113.6 L) |
| Recovery tank | 32 gal (121 L) |
| Gross weight | 28D: 1,189 lb (539.3 kg); 34D: 1,205.5 lb (546.8 kg); 32C: 1,235 lb (560.2 kg) |
| Size (L × W × H) | Length 28D: 65.4 in (166 cm); 34D: 67.4 in (171 cm); 32C: 63.1 in (160.3 cm). Width 30.3 in (77.0 cm), 32C: 30.6 in (77.7 cm). Width with squeegee 41.8 in (106.2 cm). Height 44.8 in |
| Drive and vacuum motors | Drive motor 0.5 hp; vacuum motor 0.95 hp (710 watts max) |
| Maximum grade | 2% (1.15 degrees) for scrubbing and transport |
| Sound level | 28D and 34D: 68 dB(A); 32C: 69 dB(A); uncertainty ±3.0 dB(A) |
| Protection grade | IPX4 |
Source: Advance SC901 ST Instructions for Use, form 56091217 (3/2019, rev. B), page A-23. SES ref PF-3YCP-AZJ6
Advance SC901 ST manuals and source documents
The documents this page was built from. Sign in with a free account on our site to view or download them.
| Document | Covers | Edition | Size | Open |
|---|---|---|---|---|
| SC901 ST parts listParts list with 12 drawings, 36 pages | SC901 ST 28D, 34D, 32C and NEXSYS | 3/2019, revised 10/2020, REV C (this page) | 6.2 MB | Sign in to view or downloadSign in to download |
| SC901 ST instructions for useOperator manual in English, Spanish and French, 74 pages | SC901 ST 28D, 34D and 32C | 3/2019, revised 4/2019, REV B | 21.6 MB | Sign in to view or downloadSign in to download |
Need a manual that isn't listed, or a different serial range? Call 800-440-6723 with your model and serial number.
Common Advance SC901 ST parts questions
What happens when the Advance SC901 ST batteries run down?
The gauge flashes the second LED from the left at 70% discharge. At 80% discharge it flashes the left two LEDs in turn and the scrub systems shut off to protect the batteries. The vacuum keeps running so you can pick up the solution left on the floor.
Source: Advance SC901 ST Instructions for Use, form 56091217 (3/2019, rev. B), pages A-9 and A-16. SES ref PF-VK6O-P6HZ
How much solution and recovery capacity does the SC901 ST have?
The solution tank holds 30 gal (113.6 L) and the recovery tank 32 gal (121 L). Do not use water hotter than 130 °F (54.4 °C).
Source: Advance SC901 ST Instructions for Use, form 56091217 (3/2019, rev. B), pages A-13 and A-23. SES ref PF-VK6O-P6HZ
What is the difference between the SC901 ST 28D, 34D and 32C?
The 28D and 34D have disc brushes with 28 in (71.1 cm) and 34 in (86.3 cm) cleaning paths and run at 250 rpm. The 32C has two cylindrical brushes, a 31 in (78.7 cm) path and runs at 900 rpm.
Source: Advance SC901 ST Instructions for Use, form 56091217 (3/2019, rev. B), page A-23. SES ref PF-VK6O-P6HZ
How do I charge the SC901 ST batteries?
Charge them each time you use the machine. With an onboard charger, turn the key switch off and plug the cord into a properly grounded outlet. Without one, disconnect the batteries and plug the charger connector into the battery pack connector.
Source: Advance SC901 ST Instructions for Use, form 56091217 (3/2019, rev. B), page A-20. SES ref PF-VK6O-P6HZ
How do I empty the recovery tank on the SC901 ST?
Drive to a disposal site and pull the drain hose from its hanger. Open the cap, holding the hose end above the water level in the tank. Squeeze the hose to control the flow. Empty the debris catch cage each time.
Source: Advance SC901 ST Instructions for Use, form 56091217 (3/2019, rev. B), page A-16. SES ref PF-VK6O-P6HZ
When do the SC901 ST squeegee blades need replacing?
Check and clean the squeegee every day. Reverse or replace the blades if they are cut, torn, wavy or worn. Each blade has 4 working edges, so replace it only when all 4 are nicked, torn or worn to a large radius.
Source: Advance SC901 ST Instructions for Use, form 56091217 (3/2019, rev. B), pages A-19 and A-21. SES ref PF-VK6O-P6HZ
How often do the SC901 ST carbon brushes need checking?
Have the vacuum motor carbon brushes checked once a year or after 300 operating hours. The brush motor and drive motor carbon brushes need a check every 500 hours or once a year. Motor damage from skipped brush service is not covered under warranty.
Source: Advance SC901 ST Instructions for Use, form 56091217 (3/2019, rev. B), page A-19. SES ref PF-VK6O-P6HZ
Notes on this parts list
Places where Advance's documents disagree, and how this page handles them. If you are unsure, call 800-440-6723 with your serial number.
- Advance's parts list covers five models: 56115530, 56115531 and 56115532 plus the 28D NEXSYS 56115534 and 34D NEXSYS 56115564. The instructions for use list only the first three.
- Lines with a Kit mark and no part number are printed that way in the parts list. We show them as No number printed and name the service kit in the note. The service kits are listed at the end of each section.
- Control System item 7 is printed as DELETED and Recovery System item 3 as Intentionally Omitted. Neither has a part number or a callout, so neither is on this page.
- Control System item 8 is printed twice: 56115296 with no model mark and 56115582 marked NEXSYS ONLY. Both are on this page, and only the NEXSYS line is tagged to a model.
- Decal System items 4 and 5 are both printed as 56115518. Item 4 is Decal-SC901 (STD Models) and item 5 is Decal-SC901-Advance. Item 4 also lists 56115519 for EcoFlex models.
- Solution System item 47 has no callout on the drawing. Electrical System item 9 (Harness, 56115278) is printed as not shown.
- Scrub System-Disc item 28 (Latch Assembly, 56115427) is printed on two lines with the same number and quantity.
- Squeegee Assy item 1 prints 56115333 as Squeegee Kit-Blade-Linatex for the 32 in cylindrical model. The blade kit lists on pages 23, 28 and 29 print the same number as Squeegee Kit-Blade-Red Gum.
- Options & Accessories prints the pad retainer 56505195 as Pad Retainer for 56505750 under both disc sizes. The brush selector guide (page 30) prints it as Pad Retainer for 56505800 under both.
- Options & Accessories (page 28) calls 56407474 Hard Nylon. The cylindrical brush selector guide (page 31) calls it Stiff Nylon.
- The solenoid seal kit is 56118185 on the scrub system pages and 56116891 on the recommended spare parts page. The solenoid valve kit is 56116875 on the scrub pages, and the spare parts page lists Valve-Solenoid-36vdc 56116248.
- The instructions for use (page A-16) tell you to install the heavy duty scrub kit, P/N 56115458, for the high scrub position. The parts list names 56115458 Scrub Spring Kit (Disc Models Only).
- The instructions for use give the solution tank fill limit as 30 gallons (113.5 Liters) on page A-13 and the tank capacity as 30 gallons / 113.6 L on page A-23.
- The specification table (page A-23) prints maximum scrub speed and maximum transport speed as 3.2 with no unit, so they are not on this page.
- The parts list does not print the Detergent Kit number on the Detergent Kit page. Options & Accessories lists Detergent-Kit as 56115383.
- Page 1 of the parts list shows an ordering example (a solution tank, a hinge plate and a solution tank hardware kit) whose numbers belong to another machine. They are not part of the SC901 ST lists and are not on this page.
- Descriptions are copied as Advance prints them, including its spellings (for example Hose-Sprial-.500) and the asterisk in front of Scr Hex Ss M12-1.75 x 100mm on Scrub System-Disc item 13.




