COVER

KaiVac® 1250 Operator and Parts Manual

KaiVac 1250 Kaivac Manual Serial#1304‌‌⁠‌‌⁠⁠‍‍‌⁠‌‌‍‍‍‌‌⁠‌⁠‍⁠‌‍⁠‌⁠‍‍‍⁠‌‌⁠⁠⁠‍

Yellow and black KaiVac 1250 cleaning machine on wheels, seen from the front at an angle, with hoses and a spray wand hung on its sides and a carrying handle at the top

Source: Kaivac 1250 S/N 1304-3308 Operator Manual 1250_SN_1304_thruCurrent Rev. 2010, page 1, used with permission. SES ref PF-CQCL-AMV7‌‌⁠‌‌⁠⁠‍‍‌⁠‌‌‍‍‍‌‌⁠‌⁠‍⁠‌‍⁠‌⁠‍‍‍⁠‌‌⁠⁠⁠‍

1250 S/N 1304-3308 1250_SN_1304_thruCurrent (2010)Page 1 of 31

GETTING STARTED

Read First

In short This page tells you to read the manual before operating the machine and lists what keeps it running at its best. It also asks you to inspect the machine for shipping damage and shows where each part of the manual starts.‌‌⁠‌‌⁠⁠‍‍‌⁠‌‌‍‍‍‍‌⁠⁠⁠‌⁠‌‌⁠‍‍‍‍⁠‌‌⁠⁠‍⁠‍‌‌

INSTALL DATE

Please fill out card for future records‌‌⁠‌‌⁠⁠‍‍‌⁠‌‌‍‍‍‍‌⁠⁠⁠‌⁠‌‌⁠‍‍‍‍⁠‌‌⁠⁠‍⁠‍‌‌

Install date__________________
Serial No.___________________

Read this manual prior to operation.
This machine will operate at its optimal efficiency if:

The machine is operated as described in this manual.
The machine is maintained properly and regularly-per maintenance instructions.
The machine is maintained with manufacturer parts only.

Carefully unpack and inspect your new KaiVac cleaning machine for shipping damage. Each unit is tested and thoroughly inspected before shipping. For instructions regarding shipping damage, contact Kaivac, Inc. immediately. All returns must have a Return Authorization Number (RAN), which is available by calling Kaivac, Inc Technical Service Department. Remember to protect your investment by registering your Warranty form on page ii.

Topic	Page
Getting Started
Limited Warranty Protection Plan	i
Warranty Registration Form	ii
Introduction	1
Safety Precautions	2-3
Operating your KaiVac
Out of Box Setup Instructions	4
Preparing your KaiVac for use	5
Operating your KaiVac using the S-I-M-P-L-E Process	6
Maintaining your KaiVac
Machine Maintenance	7
Vac Tank Cleanout Instructions	8
Vac Tank Removal Instructions	8.5
Black Box Removal Instructions	9
Troubleshooting	10-12
Machine Diagrams	13-19
Parts Listings	20-22

Source: Kaivac 1250 S/N 1304-3308 Operator Manual 1250_SN_1304_thruCurrent Rev. 2010, page 2, used with permission. SES ref PF-UEI5-LNUP‌‌⁠‌‌⁠⁠‍‍‌⁠‌‌‍‍‍‍‌⁠⁠⁠‌⁠‌‌⁠‍‍‍‍⁠‌‌⁠⁠‍⁠‍‌‌

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LIMITED WARRANTY PROTECTION PLAN

Limited Warranty Protection Plan

In short This page explains how long Kaivac covers the machine and its parts, depending on which chemicals are used. Warranty claims need a Return Authorization Number (RAN) from Kaivac Customer Service, and normal wear items are not covered.‌‌⁠‌‌⁠⁠‍‍‌⁠‌‌‍‍‍⁠‌⁠⁠‌‌‍‌‍⁠⁠‍⁠⁠‍‍‌‍‌‌⁠

The KaiVac has been engineered and tested to provide long lasting performance. This warranty covers defects in workmanship or materials under normal use and service from the date of purchase.‌‌⁠‌‌⁠⁠‍‍‌⁠‌‌‍‍‍⁠‌⁠⁠‌‌‍‌‍⁠⁠‍⁠⁠‍‍‌‍‌‌⁠

Kaivac, Inc. warrants the following components to be free from defects in materials and workmanship for these time periods:

Extended Warranty for end users who use only Kaivac chemicals for the life of the machine.
- 10 years on rotationally molded parts
- 3 years on other parts (excluding wear items)
- 1 year on labor
Standard Warranty (for approved non-Kaivac chemicals)
- 1 year parts and labor
Chemicals that have not been approved by Kaivac. (If uncertain, please call Kaivac to check.)
- No warranty

All KaiVac replacement parts are guaranteed for 90 days from the date of installation. Normal wear items such as wheels, hoses, seals, gaskets, cords, casters, squeegees and GFCI are excluded from warranty coverage.

All warranty claims must be accompanied by a Return Authorization Number (RAN), which is available by calling the Kaivac,Inc. Customer Service Department. No returns will be accepted without a RAN.

This warranty does not apply to return freight costs, damage or defect caused by accident, negligence, misuse, fire or repair done by anyone other than a Kaivac, Inc. authorized repair center. In no event shall Kaivac, Inc be liable for incidental or consequential damages, or any damages to persons or property.

Please Note: Under no circumstances will the seller be liable for any loss, damage, expenses or consequential damages arising in connection with the use or inability to use seller’s product. Kaivac, Inc. reserves the right to make changes or improvements to its equipment without notice. Some states do not allow the exclusion or limitation of incidental or consequential damages. This warranty is in lieu of any other warranty expressed or implied, including any warranty of merchantability or fitness for a particular purpose.

Source: Kaivac 1250 S/N 1304-3308 Operator Manual 1250_SN_1304_thruCurrent Rev. 2010, page 3, used with permission. SES ref PF-XXMC-TWDM‌‌⁠‌‌⁠⁠‍‍‌⁠‌‌‍‍‍⁠‌⁠⁠‌‌‍‌‍⁠⁠‍⁠⁠‍‍‌‍‌‌⁠

1250 S/N 1304-3308 1250_SN_1304_thruCurrent (2010)Page 3 of 31

Warranty Registration

Warranty Registration Form

To be completed and mailed or faxed by the customer purchasing equipment. Return this warranty card within ten days of purchase.‌‌⁠‌‌⁠⁠‍‍‌⁠‌‌‍‍‍‌‌⁠‍‍‌⁠‌‍⁠⁠⁠⁠‌‍‍⁠‌⁠⁠

In short This form registers your equipment under the warranty program. The purchasing customer fills it in and mails or faxes it back within ten days of purchase.‌‌⁠‌‌⁠⁠‍‍‌⁠‌‌‍‍‍‌‌⁠‍‍‌⁠‌‍⁠⁠⁠⁠‌‍‍⁠‌⁠⁠

Purchased By:

Name ___________________________ Title _________________

Company _______________________________________________

Street Address ___________________________________________

City _____________________ State ________ Zip Code ________

Phone Number ___________________ Fax ___________________

Date Purchased ____/____/____ Name of Distributor____________

I would like to receive updated information Yes____ No ____

Email address:

KaiVac® 1715
KaiVac® 1750
KaiVac® 1215
KaiVac® 2150

Serial Number ______________________

Type of Business

School/University
Hospital/Health Care
Contract Cleaner
Industrial
Office
Other ___________________

Intended Uses (check all that apply):

Restroom Cleaning
Floor Stripping
Kitchen Cleaning
Carpet Extraction
Cleaning Around Machinery
Stairwell Cleaning
Locker and Shower Room
Hallway Cleaning
Classroom Cleaning
Other ___________

Thank you for registering for our warranty program. As our way of saying thanks, we’d like to send you a free microfiber KaiTowel™.

Please return completed forms to:

Kaivac, Inc.
401 S. Third Street
Hamilton, OH 45011

Or Fax to: (513) 887-4601

Source: Kaivac 1250 S/N 1304-3308 Operator Manual 1250_SN_1304_thruCurrent Rev. 2010, page 4, used with permission. SES ref PF-U6Q6-O7DH‌‌⁠‌‌⁠⁠‍‍‌⁠‌‌‍‍‍‌‌⁠‍‍‌⁠‌‍⁠⁠⁠⁠‌‍‍⁠‌⁠⁠

1250 S/N 1304-3308 1250_SN_1304_thruCurrent (2010)Page 4 of 31

IMPORTANT SAFETY INSTRUCTIONS

SAVE THESE INSTRUCTIONS

In short These are the safety rules for using the KaiVac: read the operating instructions first, never aim the discharge stream at people, and take care with the power cord and outlet. The unit must be plugged into a properly grounded outlet and its GFCI tested before each use.‌‌⁠‌‌⁠⁠‍‍‌⁠‌‌‍‍‍‌‌‌⁠⁠⁠‍‍⁠⁠‌⁠⁠⁠⁠‍‌‍⁠⁠‍‍⁠⁠‍

CAUTION To Reduce the Risk of injury, Read Operating Instructions Carefully Before Using

WARNING Risk of injection or injury to Persons - Do Not Direct Discharge Stream at Persons

WARNING - RISK OF ELECTROCUTION

Connect to a properly grounded outlet. Do Not Remove Ground Pin
Inspect Cord Before Using - Do Not Use If Cord Is Damaged
Keep All Conections Dry And Off The Ground
Do not Touch Plug With Wet Hands
This Product Is Provided With A Ground Fault Circuit Interrupter Built Into The Power Cord. If Replacement Of The Plug Or Cord Is Needed, Use Only Identical Replacement Parts.
Test The Ground Fault Circuit Interrupter (GFCI) Before Each Use.
Do not close a door on the cord or pull the cord around sharp edges or corners.
Do not run over the cord.
Keep the cord away from heated surfaces.
Do not spray liquid from the KaiVac onto electrical outlets or on any electrical devices.
Turn off the unit before unplugging.
Do not pull on the cord to unplug. Grasp the plug at the outlet and pull.
Read Instruction Manual Before Using

Grounding Instructions

THE KAIVAC MUST BE GROUNDED. If it should malfunction or stop working, grounding provides a path of least resistance for the electrical current and reduces the risk of electrical shock. The KaiVac is equipped with a ground fault circuit interrupter (GFCI) to further reduce danger of electric shock. It must be maintained and tested regularly. An equipment grounding cord and plug is included with the unit. The plug must be inserted in an appropriate outlet that has been properly installed and grounded in accordance with all local codes and ordinances. Cutting off the ground wire or using a cord with an ungrounded plug will void the warranty on the unit, and Kaivac, Inc. will NOT accept responsibility for the unit.‌‌⁠‌‌⁠⁠‍‍‌⁠‌‌‍‍‍‌‌‌⁠⁠⁠‍‍⁠⁠‌⁠⁠⁠⁠‍‌‍⁠⁠‍‍⁠⁠‍

Improper connection of the equipment grounding cord can result in the risk of electrical shock. Ask a qualified electrician or service person to check the outlet grounding if you are unsure. Do not modify the plug provided with the KaiVac. If it will not fit the outlet, have a properly grounded outlet installed by a qualified electrician.

Source: Kaivac 1250 S/N 1304-3308 Operator Manual 1250_SN_1304_thruCurrent Rev. 2010, page 5, used with permission. SES ref PF-4DOO-CYJJ‌‌⁠‌‌⁠⁠‍‍‌⁠‌‌‍‍‍‌‌‌⁠⁠⁠‍‍⁠⁠‌⁠⁠⁠⁠‍‌‍⁠⁠‍‍⁠⁠‍

1250 S/N 1304-3308 1250_SN_1304_thruCurrent (2010)Page 5 of 31

IMPORTANT SAFETY INSTRUCTIONS

IMPORTANT SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS

In short This page lists the basic precautions to follow whenever the product is used, such as reading all instructions first, knowing the controls, staying alert and keeping the area clear. It also recommends protective equipment and states the product is for indoor use only.‌‌⁠‌‌⁠⁠‍‍‌⁠‌‌‍‍‍‌‍‌⁠‌⁠‍‌‌‌‍‌‌‌‍‌‌⁠‍‌

WARNING! When using this product basic precautions should always be followed, including the following:

Read all the instructions before using the product.
To reduce the risk of injury, close supervision is necessary when a product is used near children.
Know how to stop the product and bleed pressures quickly. Be thoroughly familiar with the controls.
Stay alert – watch what you are doing.
Do not operate the product when fatigued or under the influence of alcohol or drugs.
Keep operating area clear of all persons
Do not overreach or stand on unstable support. Keep good footing and balance at all times.
Follow the maintenance instructions specified in the manual.

Personal Protection

it is recomended to wear proper personal protective equipment as required by the chemical product label instructions used in conjunction with the KaiVac.

FOR INDOOR USE ONLY‌‌⁠‌‌⁠⁠‍‍‌⁠‌‌‍‍‍‌‍‌⁠‌⁠‍‌‌‌‍‌‌‌‍‌‌⁠‍‌

Source: Kaivac 1250 S/N 1304-3308 Operator Manual 1250_SN_1304_thruCurrent Rev. 2010, page 6, used with permission. SES ref PF-NWLO-GQJS‌‌⁠‌‌⁠⁠‍‍‌⁠‌‌‍‍‍‌‍‌⁠‌⁠‍‌‌‌‍‌‌‌‍‌‌⁠‍‌

1250 S/N 1304-3308 1250_SN_1304_thruCurrent (2010)Page 6 of 31

OPERATION INSTRUCTIONS

OPERATION INSTRUCTIONS
SAVE THESE INSTRUCTIONS

Inspection

In short Unpack the machine and check it for shipping damage right away. If you find damage, contact Kaivac Inc. immediately, and get a Return Authorization Number before returning anything.‌‌⁠‌‌⁠⁠‍‍‌⁠‌‌‍‍‍‌⁠‌⁠‌⁠‌⁠‍⁠‍⁠‍‍‌⁠‌⁠‌‌⁠‍⁠‍‌

Carefully unpack and inspect your new KaiVac cleaning machine for shipping damage. Each unit is tested and thoroughly inspected before shipping. For instructions regarding any shipping damage, contact Kaivac Inc. immediately. All returns must have a Return Authorization Number (RAN), which is available by calling the Kaivac Inc. Technical Service Department.‌‌⁠‌‌⁠⁠‍‍‌⁠‌‌‍‍‍‌⁠‌⁠‌⁠‌⁠‍⁠‍⁠‍‍‌⁠‌⁠‌‌⁠‍⁠‍‌

Equipment Use

Use the equipment for the purposes specified by the manufacturer.
Do not remove the float shutoff.
Do not run the pump dry. This will void the machine warranty.
Do not run hot water through the pump. This will void the warranty.
Always test chemicals for compatibilty on surfaces to be cleaned.
Always be sure the water tank and water line filters are clear of debris.
Do not use to pick up flammable or combustible materials.
Replace any damaged cords before use.
See the S-I-M-P-L-E operation section for proper use of equipment.

Chemical use

Only use chemicals approved for use with the KaiVac. Use of non-Kaivac chemicals may cause machine damage and will reduce warranty periods. Turn chemical line off when not in use.
Keep the appropriate chemical MSDS on hand at all times.
Cleaning chemicals should not be put in the water tank (with the exception of KaiDri in small amounts). Chemicals in the water tank can harm operator and machine because:
- Chemicals in the water tank must pass through the pump, which may cause premature pump failure.
- Use of chemicals in the water tank voids the warranty.
- Chemicals in the water tank will be aerosolized and may harm the operator.

Training

Proper training is required before using the KaiVac. Contact your authorized Kaivac Inc. distributor for training information.
Instruction placards are attached to each KaiVac and should not be removed.
These placards show proper cleaning procedures and safety precautions.

Prevention of Water Damage to Buildings

The KaiVac is to be used on water resistant building surfaces only. These include concrete, terrazzo, ceramic tile and quarry tile.

The KaiVac may be used for stripping on vinyl composite tile floors, but daily cleaning of resilient flooring using the KaiVac is not recommended.

Never overflow the water tank or the vacuum recovery tank.

Discontinue use if any leaks occur in the KaiVac.

CAUTION: Prior to cleaning, always inspect area to ensure that the surfaces to be cleaned are water- safe. In addition, check for poor construction, damaged walls and floors, missing or damaged tiles or grout, missing or insufficient caulk, and loose wall coverings. If problems are discovered, resolve them prior to cleaning in order to avoid any harm that may result from exposure to water or cleaning solution.

Source: Kaivac 1250 S/N 1304-3308 Operator Manual 1250_SN_1304_thruCurrent Rev. 2010, page 7, used with permission. SES ref PF-RWUB-OP4X‌‌⁠‌‌⁠⁠‍‍‌⁠‌‌‍‍‍‌⁠‌⁠‌⁠‌⁠‍⁠‍⁠‍‍‌⁠‌⁠‌‌⁠‍⁠‍‌

1250 S/N 1304-3308 1250_SN_1304_thruCurrent (2010)Page 7 of 31

Out of Box Setup Instructions

In short These six illustrated steps show how to set up the machine after it comes out of the container: assemble the vac wand, attach the plastic elbow and vac motor hose, stow the tools, fit the brush head onto the handle and hang the tote bag.‌‌⁠‌‌⁠⁠‍‍‌⁠‌‌‍‍‍‍‌⁠⁠‌‍‍‍⁠‌‍‍‌⁠‌‍‍‍‌‍‌‌‍

Step 1: top view of the machine with the vac wand sections shown separately; arrows show the bent upper wand section and the lower section with floor tool being pushed together until the locking pin engages — 1

1. Remove vac wand sections from the sides of machine and attach together until locking pin engages as shown.‌‌⁠‌‌⁠⁠‍‍‌⁠‌‌‍‍‍‍‌⁠⁠‌‍‍‍⁠‌‍‍‌⁠‌‍‍‍‌‍‌‌‍

Step 2: yellow machine with a curved arrow showing the plastic elbow being turned and lowered into the vac tank opening — 2

2. After removing machine from container, attach the plastic elbow to the vac tank as shown above.

Step 3: gray vac motor hose with the small hose cuff being lowered onto the barb on the yellow machine, with an arrow showing the direction — 3

3. SMALL HOSE CUFF
Attach vac motor hose to barb and vac motor inlet as shown above.

Step 4: tools being lifted out of the vac tank opening of the yellow machine, with an arrow showing where they are placed — 4

4. Remove the tools from the vac tank and place them in the appropriate locations as shown above.

Step 5: brush head pad with an arrow showing the telescoping handle being attached to it — 5

5. Place the brush head onto the telescoping handle located on the left side of machine as shown above.

Step 6: yellow machine with the black vac lid being placed on the vac tank, the telescoping handle with brush head on the left side, and an arrow showing the lid going down — 6

6. Make sure all tools are removed from vac tank and replace vac lid on vac tank as shown above. Place tools in tote bag and hang bag over nose of machine.

Source: Kaivac 1250 S/N 1304-3308 Operator Manual 1250_SN_1304_thruCurrent Rev. 2010, page 8, used with permission. SES ref PF-3EWQ-EPQK‌‌⁠‌‌⁠⁠‍‍‌⁠‌‌‍‍‍‍‌⁠⁠‌‍‍‍⁠‌‍‍‌⁠‌‍‍‍‌‍‌‌‍

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OPERATION

1200 Series Vac Tank Horn Operation

In short This page shows how to take the vacuum hose off the vac tank horn and get ready to extract. You connect the wand and hose, turn the horn toward the front of the machine, slide the hose off onto the floor, then turn on the vac motor.‌‌⁠‌‌⁠⁠‍‍‌⁠‌‌‍‍‍‍‌‌⁠⁠⁠‍‌‌⁠⁠⁠‍‌⁠‍⁠‍‍‌⁠‌

Vacuum wand with floor tool being connected to the slinky hose beside the machine, with an arrow showing the wand moving toward the hose end — 1

Connect the vacuum wand and slinky hose together.

Close-up of the vac tank horn with a curved arrow showing the horn assembly rotating toward the front of the machine, with the slinky hose attached — 2

Rotate the horn assembly so that it is now pointing towards the front of the machine.

Close-up of the horn with a hand-behind-hose position; a curved arrow and a large arrow show the vac hose sliding forward off the horn — 3

Place hand behind vac hose and slide forward off of horn onto floor.

Machine with the vac hose lying on the floor and connected to the wand, with arrows showing the hose coming off the horn and extraction starting — 3

Once hose is off and on floor turn on vac motor and proceed extracting.

Source: Kaivac 1250 S/N 1304-3308 Operator Manual 1250_SN_1304_thruCurrent Rev. 2010, page 9, used with permission. SES ref PF-WUD7-DU4J‌‌⁠‌‌⁠⁠‍‍‌⁠‌‌‍‍‍‍‌‌⁠⁠⁠‍‌‌⁠⁠⁠‍‌⁠‍⁠‍‍‌⁠‌

1250 S/N 1304-3308 1250_SN_1304_thruCurrent (2010)Page 9 of 31

PREPARING YOUR KAIVAC FOR USE

Preparing your KaiVac for use

In short This section lists six steps to get the machine ready: fill it with water, set up the cleaning solution, check tools and supplies, use a foam inhibitor if needed, inspect hoses and spray lines, and test the GFCI.‌‌⁠‌‌⁠⁠‍‍‌⁠‌‌‍‍‍‍‍‌⁠‍‌‍‌⁠⁠‍‌‌‍⁠⁠‌‌⁠‌⁠

Fill machine with clean, cool water.
Prepare the cleaning solution you will be using by attaching the chemical feed line and cap to the top of your chemical bottle and selecting the proper metering tip. (See placards for metering tip information.)
Check machine for all tools and supplies needed to complete task.
If using a cleaning product that has high foaming use a foam inhibitor to cut down on foam. Pour 2 capfulls of inhibitor in the vac hose with vac running to coat inside of hose.
Check all hoses and spray lines for damage prior to use. If damage is found, do not continue until proper repairs are completed.
Plug in machine and test GFCI (Ground Fault Circuit Interrupter) to ensure it is working properly. You are now ready.

Source: Kaivac 1250 S/N 1304-3308 Operator Manual 1250_SN_1304_thruCurrent Rev. 2010, page 10, used with permission. SES ref PF-WCDU-KQW3‌‌⁠‌‌⁠⁠‍‍‌⁠‌‌‍‍‍‍‍‌⁠‍‌‍‌⁠⁠‍‌‌‍⁠⁠‌‌⁠‌⁠

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OPERATION

S.I.M.P.L.E. No-Touch Cleaning Process

In short This page is a picture guide to the six-step S.I.M.P.L.E. cleaning process: Set-up, Inject chemicals, Manual brush (optional), Pressure wash and rinse, Loop spray line, and Extract and dry. It shows the low pressure and high pressure spray modes and how to coil the spray line.‌‌⁠‌‌⁠⁠‍‍‌⁠‌‌‍‍‍‍⁠‌⁠‌‍⁠‍‌‌‍⁠‌‍⁠‍⁠‍‍‌‌⁠

Set-up

Inject chemicals

Manual brush (optional)

Pressure wash and rinse

Loop spray line

Extract and dry

Source: Kaivac 1250 S/N 1304-3308 Operator Manual 1250_SN_1304_thruCurrent Rev. 2010, page 11, used with permission. SES ref PF-XUGC-SWQH‌‌⁠‌‌⁠⁠‍‍‌⁠‌‌‍‍‍‍⁠‌⁠‌‍⁠‍‌‌‍⁠‌‍⁠‍⁠‍‍‌‌⁠

1250 S/N 1304-3308 1250_SN_1304_thruCurrent (2010)Page 11 of 31

Machine Maintenance

In short This page lists what to check on each part of the machine: floor tool, spray gun, hose, tanks, leaks and the electrical system. Keep the machine unplugged before lifting the electric cover assembly, and stop using it if there are leaks.‌‌⁠‌‌⁠⁠‍‍‌⁠‌‌‍‍‍⁠‌⁠‍‌⁠‌‍‍‌⁠‍‌‍‍‍‌‍⁠‌‌⁠‌

CAUTION Always make sure machine is unplugged before lifting electric cover assembly.

Item	Procedure
Floor Squeegee	Check condition of rubber squeegee blades and wheels on the floor tool. Rough floor surfaces will cause the blades and wheels to wear out more quickly. Replace as necessary.
Spray Gun	Check spray pattern. If spray pattern will not pinpoint, clean orifice by removing it with an Allen wrench and flushing. Replace if not pinpointing. If nozzle becomes difficult to move from high to low pressure lubricate nozzle with lithium grease.
Pressure Hose	Wipe clean after each use. Check for cuts or frays in the hose jacket, particularly at the end of the fittings. Replace hose if cuts are found.
Water Tank	Check condition of filter in water tank. Clean as needed. Empty the water tank to prevent mildew and bacteria growth. Empty tank by dipping the vacuum hose onto the water tank and transferring the water to the vacuum tank.
Vacuum Tank	Empty and flush vacuum tank. Clean and disinfect. Check the float shutoff screen to be sure it is not plugged up. A plugged filter screen restricts airflow and results in reduced suction.
Leaks	Be alert for leaks around hoses, fittings, spray wand, tanks or elsewhere. Discontinue use until leaks are repaired.
Electrical System	The ground fault circuit interrupter (GFCI) must be tested before each use. Electric cords must be inspected for tears or cuts in the insulation.

Source: Kaivac 1250 S/N 1304-3308 Operator Manual 1250_SN_1304_thruCurrent Rev. 2010, page 12, used with permission. SES ref PF-7UUE-EASA‌‌⁠‌‌⁠⁠‍‍‌⁠‌‌‍‍‍⁠‌⁠‍‌⁠‌‍‍‌⁠‍‌‍‍‍‌‍⁠‌‌⁠‌

1250 S/N 1304-3308 1250_SN_1304_thruCurrent (2010)Page 12 of 31

Black Box Removal Instructions

In short This section shows how to take the black box off the machine. The first steps are to clear off hoses, cords and tools, remove the four yellow wingbolts with the machine on its back, tilt the tanks upright, and disconnect the water line and return line.‌‌⁠‌‌⁠⁠‍‍‌⁠‌‌‍‍‍⁠‌‌⁠⁠‍‌‍‍‍⁠⁠⁠‌⁠⁠⁠‌‌‍‍⁠‌⁠

Step 1: the upright yellow machine with hoses and cords attached, and a wand and a flat tool shown separately at the left, to be removed before black box removal — 1

Remove all hoses, cords, and tools prior to black box removal.‌‌⁠‌‌⁠⁠‍‍‌⁠‌‌‍‍‍⁠‌‌⁠⁠‍‌‍‍‍⁠⁠⁠‌⁠⁠⁠‌‌‍‍⁠‌⁠

Step 2: the machine laid on its back with arrows pointing to the four yellow wingbolts to be removed — 2

Laying the machine on its back remove the four yellow wingbolts as shown above.

Step 3: the yellow tanks tilting upward from the black box base, with a large curved arrow showing the tilt direction and a small arrow at the handle where a foot is placed — 3

Placing your foot on one of the two handles, tilt the yellow tanks upward until standing upright.

Step 4: the tanks standing upright above the black box, with two arrows pointing to the water line and return line behind the black box — 4

Locate and disconnect the water line and return line behind the black box on the machine.

Source: Kaivac 1250 S/N 1304-3308 Operator Manual 1250_SN_1304_thruCurrent Rev. 2010, page 13, used with permission. SES ref PF-4STK-TWJ4‌‌⁠‌‌⁠⁠‍‍‌⁠‌‌‍‍‍⁠‌‌⁠⁠‍‌‍‍‍⁠⁠⁠‌⁠⁠⁠‌‌‍‍⁠‌⁠

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Troubleshooting

In short This table lists problems by area (electrical, vacuum system, blow dry system and optional DVD system) with their possible causes and solutions. Make sure the machine is unplugged before lifting the electric cover assembly.‌‌⁠‌‌⁠⁠‍‍‌⁠‌‌‍‍‍⁠‍‌⁠‌⁠‍‌⁠⁠‍⁠‍‍⁠‍‌‍‌‌⁠‌‌‌

CAUTION Always make sure machine is unplugged before lifting electric cover assembly.

Area	Problem	Possible Cause	Solution
Electrical	No power to pump or vac motor.	1. Machine not plugged in. 2. Switch not “on.” 3. GFCI tripped. 4. Building circuit overloaded. 5. Switch wires loose. 6. Connections loose.	1. Plug machine in. 2. Check switches for “on." 3. Test and reset GFCI. 4. Check and reset circuit. 5. Disconnect power and check for loose wire. 6. Disconnect power and check for loose wire under panel.
Electrical	Electrical burning smell.	1. Vac motor brushes worn. 2. Vac motor hung up. 3. Pump motor hung up.	1. Remove vac motor and repair. 2. Release pressure on hose and jog pump switch, or replace.
Vacuum System	No/Weak vacuum.	1. Vac tank full. 2. Squeegee blades or wheels worn. 3. Float shutoff screen dirty. 4. Float ball stuck. 5. Damaged hose. 6. Dump hose plug missing. 7. Access lid not tight. 8. Vacuum hose plugged. 9. Too much liquid in vac hose. 10. Vac hose still wrapped. 11. Muffler plugged. 12. Leak in vac tank.	1. Empty vac tank. 2. Replace wheels or blades and check periodically. 3. Wipe off float screen to clean. 4. Tap float and release/clean. 5. Cut and repair/replace. 6. Contact dealer and replace. 7. Tighten lid hand tight. 8. Flush hose to remove debris. 9. Allow air in when vacuuming. 10. Unwrap vac hose fully. 11. Remove HEPA filter and clean. 12. If repairable, clean and dry affected area and seal with silicone.
Vacuum System	Moisture from exhaust.	1. Vac tank full. 2. Float shutoff missing. 3. Excessive foam in vac tank.	1. Dump vac tank. 2. Replace. 3. Use defoamer.
Blow Dry System	No air flow.	1. Hose disconnected.	1. Reconnect hose.
	Moisture from nozzle.	1. Water in blow hose.	1. Dry blow line.
	Suction, not blow action.	1. Vacuum hose connected to vac tank.	1. Reconnect to vac motor exhaust hose.
DVD System (optional)	No power.	1. Power cord not connected 2. Power switch not on.	1. Plug cord into DVD player. 2. Turn switch on DVD player on.
	No picture.	1. Screen is blank.	1. Close and re-open lid. Play.
	No audio.	1. No sound from player	1. Check volume control knob.

Source: Kaivac 1250 S/N 1304-3308 Operator Manual 1250_SN_1304_thruCurrent Rev. 2010, page 14, used with permission. SES ref PF-IRYM-LTPQ‌‌⁠‌‌⁠⁠‍‍‌⁠‌‌‍‍‍⁠‍‌⁠‌⁠‍‌⁠⁠‍⁠‍‍⁠‍‌‍‌‌⁠‌‌‌

1250 S/N 1304-3308 1250_SN_1304_thruCurrent (2010)Page 14 of 31

Troubleshooting

In short This table lists problems with the high pressure system and the chemical injection system, with the possible causes and the matching solutions. Find the problem, then work through the numbered causes and their solutions. Make sure the machine is unplugged before lifting the electric cover assembly.‌‌⁠‌‌⁠⁠‍‍‌⁠‌‌‍‍‍⁠⁠‌⁠‌‍‍⁠⁠‌‌‍‍‌‍⁠⁠‍‍‌

CAUTION Always make sure machine is unplugged before lifting electric cover assembly.

Area	Problem	Possible Cause	Solution
High Pressure System	No water from pump or low pressure.	Out of water. Gun nozzle plugged. Air in pump (vapor lock). Gun orifice missing. Water tank filter plugged. In-line bowl filter plugged. Bowl filter lid loose. Pressure hose damaged. Quick disconnect leaking. Injector plugged. Pulse hose damaged. Regulator failed. Hose kinked. Seals in pump need replaced.	Fill water tank. Remove orifice with Allen wrench and clean. Use power prime technique. Replace orifice. Clean tank and filter. Remove filter cover and clean. Gently tighten bowl cover. Repair or replace. Tighten or replace. Remove safety cap from chemical and blow small amounts of compressed air into line. Repair or replace. Replace. Unkink and check for damage Remove and replace seals.
	Bad fan pattern or pinpoint pattern on gun.	Debris in nozzle. Orifice damaged.	Remove orifice with Allen wrench and clean. Remove and replace.
Chemical Injection System	No chemical flow.	Out of chemical. Safety cap not secure. Chemical valve "off." Safety cap plugged. Spray gun in wrong mode. Metering tip plugged. Injector plugged. Air entering system. Injector installed backwards.	Refill chemical. Check safety cap / tighten. Check on / off valve. Replace cap. Make sure gun nozzle is pulled out away from gun chemical mode. Check metering tip for clog. Remove safety cap from chemical and blow small amounts of compressed air into line. Check for air entering system around chemical lines or injector. If fluttering or pulsing sound can be heard while spraying or when machine is running it is possible that your injector is in backwards. Remove and reinstall.

Source: Kaivac 1250 S/N 1304-3308 Operator Manual 1250_SN_1304_thruCurrent Rev. 2010, page 15, used with permission. SES ref PF-J63B-3DQG‌‌⁠‌‌⁠⁠‍‍‌⁠‌‌‍‍‍⁠⁠‌⁠‌‍‍⁠⁠‌‌‍‍‌‍⁠⁠‍‍‌

1250 S/N 1304-3308 1250_SN_1304_thruCurrent (2010)Page 15 of 31

Troubleshooting

CAUTION Always make sure machine is unplugged before lifting electric cover assembly.

In short This chart lists problems by machine area, with the possible causes and the fix for each. This page continues the Chemical Injection System and covers the dump system, wheels and casters, and squeegee head. Unplug the machine before lifting the electric cover assembly.‌‌⁠‌‌⁠⁠‍‍‌⁠‌‌‍‍‍‌‌⁠‍‌⁠‍‍‌‌‌‌‍‌⁠‌‍‌⁠‍

Area	Problem	Possible Cause	Solution
Chemical Injection System Cont'd.	Not enough chemical flow.	1. Metering tip plugged. 2. Wrong metering tip.	1. Remove and clean. 2. Check and replace per chart.
	Chemical line blows off safety cap.	1. Debris in injector.	1. Remove safety cap from chemical and blow small amounts of compressed air into line.
	Water backflows into chemical bottle.	1. Bad seat on injector check valve. 2. Bad safety cap.	1. Check injector o-ring or replace. 2. Replace safety cap.
Dump System	Dump hose will not empty tank.	1. Dump hose plug not removed. 2. Clog in bottom of tank.	1. Remove plug. 2. Tip dump contents, remove debris.
Dump System	Dump hose leaks.	1. Hose cut. 2. Clamp loose. 3. Dump plug bushing missing. 4. Plug missing.	1. If leak is less than 4" from tank side, cut and reattach, or replace. 2. Tighten hose clamp. 3. Replace bushing. 4. Replace plug.
Wheels and Casters	Wheels won’t roll, or they rub.	1. Flat tires. 2. Debris wrapped around axle. 3. Bearings tight. 4. Wheels too loose on axle. 5. Bearings falling out.	1. Inflate tires to 30 p.s.i. 2. Check for debris on axle. 3. Grease bearings. 4. Remove wheel, add washers to take up slack. 5. Replace bearing assembly.
Squeegee Head	Floor streaks.	1. Worn blades or wheels.	1. Replace wheels and / or blades.
	Squeegee head doesn’t easily rotate when installed on wand.	1. Brass ring on wand not in groove. 2. Coupling nut too tight.	1. Loosen coupling nut and re-position head on groove. 2. Loosen 1/2 turn.
	Head won’t stay on wand.	1. Coupling nut cracked. 2. Brass ring worn.	1. Replace. 2. Replace.
	Premature blade wear.	1. Squeegee wheels worn.	1. Check wheels for wear / replace.
	Sucks to the floor too tightly.	1. Squeegee wheels worn.	1. Check wheels for wear / replace.

Source: Kaivac 1250 S/N 1304-3308 Operator Manual 1250_SN_1304_thruCurrent Rev. 2010, page 16, used with permission. SES ref PF-OMQ6-5WA3‌‌⁠‌‌⁠⁠‍‍‌⁠‌‌‍‍‍‌‌⁠‍‌⁠‍‍‌‌‌‌‍‌⁠‌‍‌⁠‍

1250 S/N 1304-3308 1250_SN_1304_thruCurrent (2010)Page 16 of 31

WIRING DIAGRAM

Wiring Diagram Kaivac 1250 series

In short This page shows the plumbing diagram for the Kaivac 1250 series and the wiring diagram for the Kaivac 1200 series. The note on the page says the relief bypass is used only in 1250 units.‌‌⁠‌‌⁠⁠‍‍‌⁠‌‌‍‍‍‌‌‌⁠⁠‍‌‍⁠⁠⁠‍‍⁠‌‍⁠⁠‌‍⁠⁠‌‍

PLUMBING DIAGRAM KAIVAC 1250 SERIES

Plumbing diagram of the Kaivac 1250 series: a chemical jug feeds a chemical on/off valve inside the dashed black box electrical compartment; the water tank feeds the water pump, then the relief bypass, then the chemical injector with check valve, a mini ball valve and the spray gun. An arrow points to the relief bypass line. — PLUMBING DIAGRAM KAIVAC 1250 SERIES

NOTE: Relief Bypass only used in 1250 units.‌‌⁠‌‌⁠⁠‍‍‌⁠‌‌‍‍‍‌‌‌⁠⁠‍‌‍⁠⁠⁠‍‍⁠‌‍⁠⁠‌‍⁠⁠‌‍

WIRING DIAGRAM KAIVAC 1200 SERIES

Wiring diagram of the Kaivac 1200 series: a GFCI outlet with black, white and green wires feeds the vac motor switch and vac motor, an hour meter, and a pump switch leading to a rectifier and the water pump with black and red leads. — WIRING DIAGRAM KAIVAC 1200 SERIES

Source: Kaivac 1250 S/N 1304-3308 Operator Manual 1250_SN_1304_thruCurrent Rev. 2010, page 17, used with permission. SES ref PF-YBVZ-DZ3Q‌‌⁠‌‌⁠⁠‍‍‌⁠‌‌‍‍‍‌‌‌⁠⁠‍‌‍⁠⁠⁠‍‍⁠‌‍⁠⁠‌‍⁠⁠‌‍

1250 S/N 1304-3308 1250_SN_1304_thruCurrent (2010)Page 17 of 31

TOOL ARRANGEMENT

Tool Arrangement

In short This page shows the machine from the front right, rear left, overhead and bottom, with each tool and component labeled by its part code. Use it to identify where tools such as the squeegee head, vac wand, hoses and spray gun are stored or attached.‌‌⁠‌‌⁠⁠‍‍‌⁠‌‌‍‍‍‌‍‌⁠‍⁠‌‌‍‌‌‍‍‌‍⁠‌‌⁠‍

Front Right View

Rear Left View

Overhead View

Bottom View

DryVac Complete (DRYVAC) See Page 21.5‌‌⁠‌‌⁠⁠‍‍‌⁠‌‌‍‍‍‌‍‌⁠‍⁠‌‌‍‌‌‍‍‌‍⁠‌‌⁠‍

Source: Kaivac 1250 S/N 1304-3308 Operator Manual 1250_SN_1304_thruCurrent Rev. 2010, page 18, used with permission. SES ref PF-76SF-C5V4‌‌⁠‌‌⁠⁠‍‍‌⁠‌‌‍‍‍‌‍‌⁠‍⁠‌‌‍‌‌‍‍‌‍⁠‌‌⁠‍

1250 S/N 1304-3308 1250_SN_1304_thruCurrent (2010)Page 18 of 31

PARTS DIAGRAMS

Dry Vac Assembly

DESCRIPTION: Dry Vac Assembly
ISSUE DATE: 6/2008
REVISION:
(DRYVAC)‌‌⁠‌‌⁠⁠‍‍‌⁠‌‌‍‍‍‌‍⁠‌⁠‌‌‌‌⁠‌‍⁠‍‌⁠‌‌‍‌‍⁠‍

Source: Kaivac 1250 S/N 1304-3308 Operator Manual 1250_SN_1304_thruCurrent Rev. 2010, page 27, used with permission. SES ref PF-XGFL-KHEB‌‌⁠‌‌⁠⁠‍‍‌⁠‌‌‍‍‍‌‍⁠‌⁠‌‌‌‌⁠‌‍⁠‍‌⁠‌‌‍‌‍⁠‍

1250 S/N 1304-3308 1250_SN_1304_thruCurrent (2010)Page 27 of 31

KaiVac® 1250 Operator and Parts Manual

Read First

INSTALL DATE

TABLE OF CONTENTS

Limited Warranty Protection Plan

Warranty Registration Form

Type of Business

Intended Uses (check all that apply):

IMPORTANT SAFETY INSTRUCTIONS

SAVE THESE INSTRUCTIONS

Grounding Instructions

IMPORTANT SAFETY INSTRUCTIONSSAVE THESE INSTRUCTIONS

Personal Protection

OPERATION INSTRUCTIONSSAVE THESE INSTRUCTIONS

Inspection

Equipment Use

Chemical use

Training

Prevention of Water Damage to Buildings

Out of Box Setup Instructions

1200 Series Vac Tank Horn Operation

Preparing your KaiVac for use

S.I.M.P.L.E. No-Touch Cleaning Process

Set-up

Inject chemicals

Manual brush (optional)

Pressure wash and rinse

Loop spray line

Extract and dry

Machine Maintenance

Black Box Removal Instructions

Troubleshooting

Troubleshooting

Troubleshooting

Wiring Diagram Kaivac 1250 series

PLUMBING DIAGRAM KAIVAC 1250 SERIES

WIRING DIAGRAM KAIVAC 1200 SERIES

Tool Arrangement

Front Right View

Rear Left View

Overhead View

Bottom View

Dry Vac Assembly

Not Sure Which Machine Fits Your Floors?

IMPORTANT SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS

OPERATION INSTRUCTIONS
SAVE THESE INSTRUCTIONS