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Form MANUALXCU_ONLINE-, Rev. 2026
Kaivac · Cleaning machine

Kaivac UniVac Operator Manual

MANUALXCU_ONLINE- Rev. 202623 pagesUniVac Manual (UniVac)
Free to read, no account neededEvery page has its own linkPart numbers link to the part
COVER

OPERATOR’S MANUAL UNIVAC®

©2026 Kaivac, Inc. All rights reserved‌‌​⁠​‌⁠‍‍‍⁠​⁠⁠‍‌⁠⁠‍​​​​​​​​‌​​​‌​⁠​​‌‍​‌‌​‍‍‌‍‍‍⁠‍‌‌⁠​​⁠⁠⁠⁠⁠

WARNING DO NOT attempt to operate the unit before reading and understanding this manual. Pay close attention to all WARNINGS, CAUTIONS and NOTICES. Failure to do so may cause serious personal injury or death, and/or damage to property or your Kaivac product. Specifications and parts are subject to change without notice. For most up to date safety information, visit kaivac.com

TABLE OF CONTENTS

Getting Started

  • Kaivac Limited Warranty: 2-3
  • Important Safety Instructions: 4-5
  • Battery Information: 6
  • Grounding Information: 7-8

Operation/Assembly

  • Unit Components: 9
  • Setup/Basic Operation: 10
  • Illustrations: 11-12
  • Univac Operation: 13

Maintenance

  • Daily & General Maintenance: 14
  • Unit & Maintenance: 15
  • DC Standard Electrical Diagram: 16
  • AC Intl. Electrical Diagram: 17
  • AC Standard Electrical Diagram: 17
  • Troubleshooting: 18-20

Specification Diagrams

  • Vacuum Tank Assembly: 21
  • Vacuum Head Assembly: 22
  • Battery Interface Assembly: 22

SAVE THIS MANUAL FOR FUTURE REFERENCE
VISIT KAIVAC.COM FOR FULL SPECIFICATIONS & TROUBLESHOOTING

Line drawing of the Univac machine on its wheeled cart, showing the round vacuum tank with a lid and handle, hoses, a tall wand and handle, and the floor tool with brush at the lower left
Source: Kaivac UniVac Operator Manual MANUALXCU_ONLINE- Rev. 2026, page 1, used with permission. SES ref PF-76HN-5ERB‌‌​⁠​‌⁠‍‍‍⁠​⁠⁠‍‌⁠⁠‍​​​​​​​​‌​​​‌​⁠​​‌‍​‌‌​‍‍‌‍‍‍⁠‍‌‌⁠​​⁠⁠⁠⁠⁠
UniVac MANUALXCU_ONLINE- (2026)Page 1 of 23
KAIVAC LIMITED WARRANTY

Kaivac Limited Warranty

In short This section explains what Kaivac warrants to the original purchaser and for how long, with different periods for the tank and trolley, vacuum motor and pump, labor, batteries and replacement parts. It also states the remedy Kaivac provides and lists what the warranty does not cover.‌‌​⁠​‌⁠‍‍‍⁠​⁠⁠‍‌⁠⁠‍​​​​​​​​‍​​​‌​⁠​​​‍‌‌‍​​⁠‍‍‌‍‌‍‍​‌‌​‍⁠​​‌
  1. Limited Warranty. Kaivac warrants to the original purchaser that the Products will be free from defects in materials and workmanship when properly assembled, installed, operated, maintained, and stored in accordance with Kaivac's instructions and recommendations (the "Limited Warranty"), subject to the exclusions and limitations set forth in this Limited Product Warranty.
  2. Limited Warranty Periods. The applicable Limited Warranty periods are as follows:
    1. TANK AND TROLLEY LIMITED WARRANTY. The vacuum tank and trolley components of the Product are warranted for a period of Five (5) Years from the date of purchase.
    2. VACUUM MOTOR and PUMP LIMITED WARRANTY (excluding Battery). The battery interface and related components (excluding lithium-ion batteries), vacuum motor, and pump are warranted for a period of Three (3) Years from the date of purchase.

      A Limited Lifetime Warranty for the OmniFlex vacuum motor is available to customers who purchase a Kaivac chemical subscription concurrently with the initial purchase of the OmniFlex unit and maintain the subscription without interruption for the duration of ownership. Eligibility for the warranty is conditioned upon the exclusive use of Kaivac-supplied chemicals in the OmniFlex unit. Any cancellation, lapse, or discontinuation of the subscription will immediately terminate the Limited Lifetime Warranty. Compliance with the requirements of the OmniFlex Limited Lifetime Warranty shall be determined by Kaivac.‌‌​⁠​‌⁠‍‍‍⁠​⁠⁠‍‌⁠⁠‍​​​​​​​​‍​​​‌​⁠​​​‍‌‌‍​​⁠‍‍‌‍‌‍‍​‌‌​‍⁠​​‌

    3. LABOR LIMITED WARRANTY. Labor authorized by Kaivac and performed by a service provider selected or approved by Kaivac is warranted for One (1) Year from the date the labor is performed, not to exceed the warranty period applicable to the repaired or replaced component.
    4. BATTERY LIMITED WARRANTY. Lithium-ion batteries are warranted for a period of Two (2) Years from the date of purchase.
    5. REPLACEMENT PARTS. Replacement parts, excluding Accessories, are warranted for a period of ninety (90) days from the date of purchase.
  3. Limited Warranty Remedy. For any valid warranty claim, Kaivac shall, at its sole option, repair or replace the defective Product or component. If Kaivac authorizes a repair, such repair shall not extend the original Limited Warranty period. If Kaivac provides a replacement Product or component, the Limited Warranty shall continue only for the remainder of the original Limited Warranty period. The remedies set forth in this Limited Product Warranty are the original purchaser's exclusive remedies and Kaivac's sole liability for any breach of the Limited Warranty.
  4. Exclusions. The Limited Warranty does not apply to:
    1. Accessories, including without limitation squeegee blades, wheels, hoses, seals, gaskets, cords, casters, HEPA filter cartridges, chemical feed caps, spray guns, GFCIs, and vacuum wand assemblies (collectively, "Accessories");
    2. Normal wear and tear;
    3. Any Product repaired, altered, or modified in a manner that, in Kaivac's judgment, adversely affects operation, performance, durability, or intended use;
    4. Misuse, abuse, negligence, accidents, or failure to operate, maintain, or store the Product in accordance with Kaivac's instructions, recommendations, and warnings;
    5. Use of high-foaming or corrosive chemicals;
    6. Use of non-Kaivac batteries or chargers, or improper battery installation;
    7. Loss of IoT functionality resulting from failure to maintain required network connectivity or failure to permit installation of Kaivac-issued firmware, security certificate, or software updates
    8. Use of a lithium-ion battery more than five (5) years from the date of purchase; or
    9. Modification of, or attempted modification to, the Product by anyone other than Kaivac or a service provider authorized by Kaivac
Source: Kaivac UniVac Operator Manual MANUALXCU_ONLINE- Rev. 2026, page 2, used with permission. SES ref PF-KOBK-7FDI‌‌​⁠​‌⁠‍‍‍⁠​⁠⁠‍‌⁠⁠‍​​​​​​​​‍​​​‌​⁠​​​‍‌‌‍​​⁠‍‍‌‍‌‍‍​‌‌​‍⁠​​‌
UniVac MANUALXCU_ONLINE- (2026)Page 2 of 23
KAIVAC LIMITED WARRANTY

Kaivac Limited Warranty (Continued)

Kaivac shall have sole authority to determine whether a warranty claim is excluded under this Limited Product Warranty.‌‌​⁠​‌⁠‍‍‍⁠​⁠⁠‍‌⁠⁠‍​​​​​​​​⁠​​​‌​⁠​​​⁠‍‌‌‌⁠‌‍‍⁠⁠⁠‍‌​‍​​‌‌‌⁠‌

  1. Warranty Claim Costs. The original purchaser shall be responsible for all freight, shipping, travel, and related costs associated with warranty service. For warranty claims made outside the country where the Product was originally purchased, the original purchaser shall also be responsible for all duties, taxes, and import-related charges.
  2. Disclaimer of Other Warranties. EXCEPT AS OTHERWISE EXPRESSLY STATED HEREIN, KAIVAC MAKES NO OTHER WARRANTY OR REPRESENTATION OF ANY KIND, EXPRESSED OR IMPLIED, INCLUDING ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. TO THE EXTENT SUCH WARRANTIES CANNOT BE DISCLAIMED, THE IMPLIED WARRANTIES ARE LIMITED IN DURATION TO THE LIFE OF THE APPLICABLE EXPRESS WARRANTY PERIOD.
  3. Exclusion of Damages. TO THE FULLEST EXTENT PERMITTED BY LAW, KAIVAC SHALL NOT BE LIABLE FOR ANY INDIRECT, INCIDENTAL, CONSEQUENTIAL, SPECIAL, EXEMPLARY, OR PUNITIVE DAMAGES ARISING OUT OF OR RELATING TO ANY PRODUCT OR THE LIMITED WARRANTY, INCLUDING LOSS OF USE, LOSS OF REVENUE, LOSS OF PROFITS, OR PROPERTY DAMAGE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS SHALL APPLY EVEN IF ANY EXCLUSIVE REMEDY FAILS OF ITS ESSENTIAL PURPOSE. THE REMEDIES SET FORTH IN THIS WARRANTY ARE THE ONLY REMEDIES AVAILABLE TO ANY PERSON UNDER THIS WARRANTY. SOME STATES/PROVINCES DO NOT ALLOW FOR THE DISCLAIMERS, LIMITATIONS, AND EXCLUSIONS IDENTIFIED ABOVE, AND AS A RESULT, THEY MAY NOT APPLY TO YOU
  4. No Other Warranties. No employee, agent, representative, dealer, or retailer has authority to modify, expand, or create any representation or warranty regarding the Product on behalf of Kaivac unless expressly authorized in writing by Kaivac. Kaivac reserves the right to modify, amend, or discontinue this Limited Warranty at any time. The most current version of the Limited Warranty may be found at www.kaivac.com. The Limited Warranty in effect on the date of purchase shall govern the warranty coverage applicable to the Product.

Consult Kaivac.com for current Product(s) information and Limited Warranty. For any questions or warranty service, please contact Kaivac Customer Service at 1/800-287-1136 (Outside the U.S. Call 513-887-4600).

Version 9-3-2026

Phone:

United States and Canada: 1-800-287-1136

International: 1-513-887-4600

Email:

info@kaivac.com

For Technical Support Contact Form go to: https://www.kaivac.com/contactus.php and choose Technical\Support tab.

Source: Kaivac UniVac Operator Manual MANUALXCU_ONLINE- Rev. 2026, page 3, used with permission. SES ref PF-6OJX-HXQX‌‌​⁠​‌⁠‍‍‍⁠​⁠⁠‍‌⁠⁠‍​​​​​​​​⁠​​​‌​⁠​​​⁠‍‌‌‌⁠‌‍‍⁠⁠⁠‍‌​‍​​‌‌‌⁠‌
UniVac MANUALXCU_ONLINE- (2026)Page 3 of 23
IMPORTANT SAFETY INSTRUCTIONS

IMPORTANT SAFETY INSTRUCTIONS

In short This section lists the safety precautions to follow when using the unit. It covers general use, the spray system and corded units, and asks the operator to read all instructions before using the unit.‌‌​⁠​‌⁠‍‍‍⁠​⁠⁠‍‌⁠⁠‍​​​​​​​‌​​​​‌​⁠​​‍​​‌‍‍‌‌‍⁠​‌​​​⁠‌⁠​‍⁠‌​​

SAVE THESE INSTRUCTIONS
CONSULT KAIVAC.COM FOR THE MOST UP TO DATE SAFETY PRECAUTIONS
READ ALL INSTRUCTIONS BEFORE USING (THIS UNIT)‌‌​⁠​‌⁠‍‍‍⁠​⁠⁠‍‌⁠⁠‍​​​​​​​‌​​​​‌​⁠​​‍​​‌‍‍‌‌‍⁠​‌​​​⁠‌⁠​‍⁠‌​​

WARNING SAFETY ALERT WARNING indicates a hazardous situation which, if not avoided, COULD result in serious injury or death
CAUTION SAFETY ALERT CAUTION indicates a hazardous situation which, if not avoided, COULD result in minor to moderate injury.
NOTICE NOTICE provides key information by clarifying instructions.

When using an electrical unit, basic precautions should always be followed, including the following:

WARNING RISK OF ELECTRIC SHOCK, FIRE, EXPLOSION, AND SERIOUS PERSONAL INJURY OR DEATH

GENERAL SAFETY INSTRUCTIONS (APPLICABLE TO CORDED AND BATTERY UNITS):

  • For commercial use only.
  • Use unit only as described in this Manual. Use only Kaivac's recommended attachments.
  • Follow the maintenance instructions specified in this Manual.
  • For indoor use only. Store indoors.
  • Stay alert - watch what you are doing. DO NOT overreach or stand on unstable support. Keep good footing and balance at all times.
  • Keep operating area clear of all persons.
  • Keep hair, loose clothing, fingers, and all parts of body away from openings and moving parts.
  • NO COMBUSTIBLES! Sparks inside the motor can ignite flammable vapors or dust. Do not use unit near combustible liquids and gases, or to pick up explosive dusts or gasoline.
  • Know how to stop the unit and bleed pressures quickly. Be thoroughly familiar with the unit's controls before operating.
  • DO NOT allow unit to be used as a toy and unit should not be operated by children. Close attention is necessary when used near children.
  • Use extra care when cleaning on stairs.
  • DO NOT operate the unit when fatigued or under the influence of alcohol or drugs.
  • DO NOT put any object into unit's openings. Do not use with any of the unit's opening blocked; keep free of dust, lint, hair, and anything that may reduce air flow.
  • DO NOT pick up anything that is burning or smoking, such as cigarettes, matches or hot ashes.
  • DO NOT operate without the Vacuum Motor Float Cage installed. If float is removed, reinstall by screwing back into place.
  • DO NOT use without filters in place.
  • Personal Protective Equipment (PPE): It is recommended to wear proper personal protective equipment as required by the chemical product label instructions used in conjunction with the unit. For Kaivac chemical products, refer to product label.

SPRAY SYSTEM SAFETY INSTRUCTIONS:

  • DO NOT spray liquid from the unit or attachments onto electrical outlets or any electrical devices.
  • Risk of injection or injury to persons - DO NOT direct discharge stream at persons.
  • INJECTION HAZARD: Unit can cause serious injury if the spray permeates the skin. Do not point the spray gun at anyone or any part of the body. In case of permeation, seek medical aid immediately.
  • THIS UNIT IS CAPABLE OF PRODUCING 500 PSI (3447 kPa). To avoid rupture and injury, do not operate this pump with components rated less than 500 PSI (3447 kPa) working pressure (including but not limited to spray guns, hose, and hose connections); and before servicing, cleaning or removal of any part, shut off power and relieve pressure.
  • High pressure cleaners, such as this unit, shall not be used by children, persons with reduced physical, sensory or mental capabilities or lack of experience and knowledge or untrained personnel. Children should not play with the unit. Cleaning and user maintenance should not be performed by children.

CORDED UNITS SAFETY INSTRUCTIONS (APPLICABLE TO CORDED UNITS):

  • Inspect cord and plug prior to use. Do not use with damaged cord or plug. If unit is not working as it should, has been dropped, damaged, left outdoors or dropped into water, do not use or charge and return unit to a Kaivac service center.
  • This unit may also have been provided with a ground fault circuit interrupter (GFCI) built into the power cord. If replacement of the plug or cord is needed, use only identical replacement parts. Test the unit's ground fault circuit interrupter (GFCI) before each use.
  • Turn off the unit before unplugging. Do not leave unit when plugged in. Unplug from outlet when not in use and before servicing.
  • Turn off all controls before unplugging.
  • Connect to a properly grounded outlet only. Do not remove ground pin on plug. See Grounding Instructions below.
  • This unit comes with a grounded attachable extension cord. If cord is damaged, replace with equivalent 120v, 15amps, 14GA rated cord. This cord must be attached and mechanically secured using the provided cord connector to use the unit.
  • The unit must be disconnected from any electrical or battery source when the unit is being cleaned or maintenance of unit or when replacing parts
  • Keep all connections dry and off the ground. If using extension cord with unit, make sure the connection is above and off the floor and away from exposure to liquid.
  • Keep the cord away from heated surfaces.
  • DO NOT handle plug or unit with wet hands.
  • DO NOT pull or carry by cord, use cord as handle, close a door on cord, or pull cord around sharp edges or corners. Do not run unit over cord. Keep cord away from heated surfaces.
  • DO NOT unplug by pulling on cord. To unplug, grasp the plug, not the cord.
Source: Kaivac UniVac Operator Manual MANUALXCU_ONLINE- Rev. 2026, page 4, used with permission. SES ref PF-UWU2-PRBG‌‌​⁠​‌⁠‍‍‍⁠​⁠⁠‍‌⁠⁠‍​​​​​​​‌​​​​‌​⁠​​‍​​‌‍‍‌‌‍⁠​‌​​​⁠‌⁠​‍⁠‌​​
UniVac MANUALXCU_ONLINE- (2026)Page 4 of 23
IMPORTANT SAFETY INSTRUCTIONS

IMPORTANT SAFETY INSTRUCTIONS (CONTINUED)

SAVE THESE INSTRUCTIONS
CONSULT KAIVAC.COM FOR THE MOST UP TO DATE SAFETY PRECAUTIONS
READ ALL INSTRUCTIONS BEFORE USING (THIS UNIT)‌‌​⁠​‌⁠‍‍‍⁠​⁠⁠‍‌⁠⁠‍​​​​​​​‌‌​​​‌​⁠​​‌‌⁠⁠‍​⁠‍‌​‍‌⁠‍‌‌‍⁠​​⁠‍⁠‌

When using an electrical unit, basic precautions should always be followed, including the following:

In short This page lists safety rules for battery-powered units and for the charger and electrical connections. Inspect the battery, charger, cord and plug before each use, use only Kaivac battery and charger, and never use or charge a damaged battery.‌‌​⁠​‌⁠‍‍‍⁠​⁠⁠‍‌⁠⁠‍​​​​​​​‌‌​​​‌​⁠​​‌‌⁠⁠‍​⁠‍‌​‍‌⁠‍‌‌‍⁠​​⁠‍⁠‌

Batteries and chargers: make sure your charger is compatible with your batteries, and set its charging algorithm to your battery pack before you use it.

Orange WARNING label with an electric shock hazard symbol and the text RISK OF ELECTRIC SHOCK, FIRE, EXPLOSION, AND SERIOUS PERSONAL INJURY OR DEATH

BATTERY UNITS SAFETY INSTRUCTIONS (APPLICABLE TO BATTERY UNITS):

  • Never use a battery that has been damaged in any way. Damaged batteries may exhibit unpredictable behavior.
  • Never use or charge a damaged battery pack.
  • ONLY USE with Kaivac, Inc. battery, and charger.
  • Inspect the battery before each use for damage, dents, cracks, or holes.
  • If included with legacy unit, the battery splash cover must remain in place. Without the battery splash cover, the battery housing may become damaged which may cause the battery to malfunction, which can result a fire, explosion, personal injury, and/or property damage.
  • If your unit contains a chemical-resistant plastic protective helmet, consult the Helmet Addendum for additional instructions and warnings.
  • Exposure of units to airborne polyunsaturated fats in the food service industry may cause deterioration of battery components. Failure to inspect and use as instructed may result in fire explosion, personal injury, or property damage.
  • Under certain conditions, including damage or liquid infiltrating the battery's interior cells, the battery may emit smoke, sparks, or fire. Liquid may be ejected from the battery; avoid contact. If contact accidentally occurs, flush with water. If liquid contacts eyes, additionally seek medical help. Liquid ejected from the battery may cause irritation or burns.
  • Stop use immediately if the battery or unit sparks or shows signs of fire. And may result in fire.
  • If unit or battery emits fumes, smoke, sparks, or fire, discontinue use immediately. Do not touch battery. If unit can be safely moved, move outside to a well ventilated fire safe area away from people or combustible material.
  • DO NOT attempt to repair, service or modify the batteries or charger. Contact Kaivac Technical Support with any issues.
  • Disconnect the battery from the unit before making any adjustments, changing accessories, or storing unit. Such preventive safety measures reduce the risk of starting the unit accidentally.
  • When charging battery, make sure charger or unit has at least 6 inches of clearance on all sides for adequate air flow.
  • When battery is not in use, keep it away from other metal objects like paper clips, coins, keys, nails, screws or other small metal objects that can make a connection from one terminal to another. Connecting or shorting the battery terminals together may cause burns or a fire.
  • Keep heat sources, sparks, and flames away from batteries.
  • Prevent unintentional starting. Ensure the switch is in the off-position before connecting to battery, picking up or carrying the unit. Do not carry the unit with your finger on the switch. Energizing an unit that has the switch on invites accidents.
  • DO NOT allow battery to be submerged in water.
  • DO NOT use a battery that has been submerged in water, or if water has infiltrated the battery housing even if it appears to be working.
  • DO NOT charge batteries outdoors.
  • DO NOT short-circuit the battery or charger terminals with conductive items such as paper clips. This can deliver high current.
  • DO NOT crush or drop the battery.
  • DO NOT expose a battery or unit to fire or excessive temperature. Exposure to fire or temperature above 265°F (130°C) may cause explosion.
  • DO NOT use or store the NTC System or battery in refrigerated areas, in environments when the battery is in direct contact with liquids, or near flammable or combustible materials.
  • DO NOT charge or store battery for extended time (1 month or more) in temperatures below 40°F (4°C).
  • DO NOT remove any part of the battery, charging unit, or unit: If your unit has a chemical-resistant plastic protective helmet, do not remove it.
  • DO NOT plug battery in while Vacuum Motor is in ON position. It may damage the system.
  • DO NOT incinerate the battery even if it is non-working or severely damaged. The battery can explode in a fire.
  • DO NOT leave battery connected to charger once the charger light is green. Leaving battery on charger will diminish the life of the battery
  • Never dispose of the battery in the trash. It is important that your old, damaged battery is disposed of and/or returned as instructed by Kaivac Customer Care/Technical Support at 1-800-287-1136.
Orange WARNING label with an electric shock hazard symbol and the text RISK OF ELECTRIC SHOCK, FIRE, EXPLOSION, AND SERIOUS PERSONAL INJURY OR DEATH

CHARGER/ELECTRICAL WARNINGS:

  • Inspect the charger, cords, and connections prior to each use.
  • Follow all charging instructions and do not charge the battery or unit outside of the temperature range specified in the instructions. Charging improperly or at temperatures outside of the specified range may damage the battery and increase the risk of fire.
  • Connect charging cord to a properly grounded outlet only. See Grounding Instructions.
  • DO NOT use charger if it has a damaged cord or plug.
  • DO NOT operate charger if it has received a sharp blow, been dropped, or damaged in any way.
  • DO NOT handle charger, including charger plug and charger terminals, with wet hands while charger is plugged in or while inserting plug into electrical outlet.
  • DO NOT leave charger plugged in when not in use.
  • DO NOT plug in charger while Vacuum Head is in ON position. It may damage the unit's electrical system.
  • DO NOT pull on charger cord to unplug. Grasp and pull the plug, not the cord.
  • DO NOT carry charger by cord.
Source: Kaivac UniVac Operator Manual MANUALXCU_ONLINE- Rev. 2026, page 5, used with permission. SES ref PF-DOPI-J2YJ‌‌​⁠​‌⁠‍‍‍⁠​⁠⁠‍‌⁠⁠‍​​​​​​​‌‌​​​‌​⁠​​‌‌⁠⁠‍​⁠‍‌​‍‌⁠‍‌‌‍⁠​​⁠‍⁠‌
UniVac MANUALXCU_ONLINE- (2026)Page 5 of 23
BATTERY INFORMATION

To recycle battery, call Kaivac Customer Care at 1-800-287-1136 to order a recycling box.
Disposal of batteries are regulated by federal law and must be done properly.‌‌​⁠​‌⁠‍‍‍⁠​⁠⁠‍‌⁠⁠‍​​​​​​​‌‍​​​‌​⁠​​⁠‍‌‌‌‍⁠​‌⁠​⁠​‌​‌​​‌‌‌‌⁠⁠

BATTERY INFORMATION

In short This section explains how to store, use and replace the lithium-ion battery, and lists the battery and charger specifications. Keep the battery at room temperature, store it at 50% charge for long storage, replace it when run time falls below 55% or after 4 years, and recycle old batteries properly.‌‌​⁠​‌⁠‍‍‍⁠​⁠⁠‍‌⁠⁠‍​​​​​​​‌‍​​​‌​⁠​​⁠‍‌‌‌‍⁠​‌⁠​⁠​‌​‌​​‌‌‌‌⁠⁠

Batteries and chargers: make sure your charger is compatible with your batteries, and set its charging algorithm to your battery pack before you use it.

Keep Batteries at Room Temperature: Store between 32 and 113 degrees F (0°C to 45°C). Avoid battery exposure to extreme temperatures. If shelving battery longer than (1) month, deplete battery to 50% charge during storage period (two bars on the battery indicator).

Batteries Lose Capacity Over Time: Batteries naturally deteriorate over time whether being used or not. If battery use instructions are properly followed, batteries deteriorate at a rate of approximately 10% run time per year but may vary by patterns of use.

Fully Discharge vs. Partial Discharge and the Effect on Battery Cycles: Unlike lead acid batteries, the Lithium-ion battery used with Kaivac equipment is not damaged by full or partial discharging. The expected battery hours of use are approximately 600 hours and 400 charge cycles. If you discharge battery only to 80%, then the user can expect to get more cycles (500 cycles). With dual batteries make sure to alternate batteries per charge in order to maximize for life capacity.

Extended Storage: It is recommended to discharge to 50% capacity (two bars on the battery indicator) and store in a cool location (between 32°F to 113°F or 0°C to 45°C). To avoid battery impact, store battery laying down on its side on lowest shelf, and secured. If battery is dropped or experiences an impact or damage, discontinue use and replace. Never use a damaged battery, as a damaged battery may act in an unpredictable manner resulting in fire, explosion, property damage, or personal injury.

Battery Gauge: The Kaivac provided battery comes with a built-in Battery Gauge or which shows the approximate run time for the current charge remaining.

Replacement - End of Life: Rechargeable batteries eventually wear out. When your Kaivac Battery run time is less than 55% (i.e. 50 minutes for non-quick change and 33 minutes for Quick Change batteries), Kaivac recommends replacing your battery. Regardless of run time, contact Kaivac to replace your battery after 4 years. Consult kaivac.com for information on recycling your old battery through a licensed disposal facility.

WARNING! RISK OF FIRE, EXPLOSION, PROPERTY DAMAGE, OR SERIOUS INJURY OR DEATH
DO NOT DISCARD BATTERY INTO TRASH! It is important to recycle your old batteries at your local authorized battery recycling facility or by calling 1-800-USA-CLEAN (1-800-872-2532) and selecting Option 3.
Battery Specifications
WeightWith Box, 11 lbs. (4,9 kg)
Body MaterialInjection Mold Polypropylene
Dimensions (H x W x D)18 x 7 x 5 in. (45,7 x 17,8 x 12,7 cm)
Voltage36V DC
Battery Capacity15 A-hr
Battery Current15 A DC
Battery TypeLithium-Ion
Approx. Run Time BOL (Beginning of Life)60 minutes
Approx. Run Time EOL (End of Life)35 minutes (discontinue use and take to recycling center)
Battery Box ReceptacleIP65 / IP67 (not required for UL)
Run Time Hour MeterActs as “odometer for battery” and runs only when motor switch is ON
Approx. Charge Cycles400 @ 100% discharge / 500 @ 80% discharge
Cut off Voltage (fully discharged)30V
Charger Specifications
Approx. Charge Time5 hours
Charger Amps4 Amps
Charge Voltage42V DC
Charger Voltage110-240VAC / 36VDC (240VAC version only needs correct plug for wall outlet)
Charging RobustnessNo special instructions
Battery Charge MemoryNone
Battery Charge GaugeYes, LED Indicator
Approx. Charge Cycles400 @ 100% discharge / 500 @ 80% discharge
Storage/Inventory:
Storage & Operation Ambient Temp32°F (0°C) to 113°F(45°C)
Storage & Shipping Charge40-60% Charge (35-38VDC)

Customer/Technical Support
1-800-287-1136

Source: Kaivac UniVac Operator Manual MANUALXCU_ONLINE- Rev. 2026, page 6, used with permission. SES ref PF-NJBF-QYER‌‌​⁠​‌⁠‍‍‍⁠​⁠⁠‍‌⁠⁠‍​​​​​​​‌‍​​​‌​⁠​​⁠‍‌‌‌‍⁠​‌⁠​⁠​‌​‌​​‌‌‌‌⁠⁠
UniVac MANUALXCU_ONLINE- (2026)Page 6 of 23
GROUNDING INFORMATION

GROUNDING INFORMATION

WARNING RISK OF ELECTRIC SHOCK OR FIRE

Grounding: Corded Units

In short Corded units have a GFCI built into the plug and must be plugged into a properly grounded outlet that matches the plug. Do not use an adapter or remove the ground pin, and replace a damaged cord only with an OEM or equivalent cord.‌‌​⁠​‌⁠‍‍‍⁠​⁠⁠‍‌⁠⁠‍​​​​​​​‌⁠​​​‌​⁠​​​‍​‌​⁠⁠​⁠​​​‍⁠​⁠​⁠‍‍⁠‌‌‍

GROUND FAULT CIRCUIT INTERRUPTER PROTECTION (for spray systems only)‌‌​⁠​‌⁠‍‍‍⁠​⁠⁠‍‌⁠⁠‍​​​​​​​‌⁠​​​‌​⁠​​​‍​‌​⁠⁠​⁠​​​‍⁠​⁠​⁠‍‍⁠‌‌‍

If your unit is a corded unit, it has been supplied with a ground-fault circuit-interrupter(GFCI) built into the plug of the power-supply cord. This GFCI device provides additional protection from the risk of electric shock. Should replacement of the plug or cord become necessary, use only identical replacement parts that include GFCI protection.

If your unit is a corded unit, it is for use on a nominal circuit and has a grounding attachment plug. Make sure that the appliance is connected to an outlet having the same configuration as the plug. No adapter should be used with this unit.

GROUNDING INSTRUCTIONS

If your unit is a corded unit, it must be grounded. If the unit should malfunction or breakdown, grounding provides a path of least resistance for electric current to reduce the risk of electric shock. This unit is equipped with a cord having an equipment-grounding conductor and a grounding plug. The plug must be plugged into an appropriate outlet that is properly installed and grounded in accordance with all local electrical codes and ordinances.

WARNING RISK OF ELECTRIC SHOCK
Improper connection of the unit-grounding conductor can result in a risk of electric shock. Check with a qualified electrician or service person if you are in doubt as to whether the outlet is properly grounded. Do not modify the plug provided with the unit by removing the ground pin on the plug – if the plug will not fit the outlet, have a proper outlet installed by a qualified electrician.

This unit comes with a grounded attachable extension cord. If damaged, replace with Kaivac® (OEM) cord, or if necessary an equivalent cord rated 120V, 15 amps, 3-wire, 14 GA. This cord must be attached and mechanically secured using the provided cord connector to use the unit.

Grounding: Battery Units

In short The charger on battery units must be grounded through a properly installed outlet that matches its plug. Do not use an adapter or remove the ground pin.

Batteries and chargers: make sure your charger is compatible with your batteries, and set its charging algorithm to your battery pack before you use it.

GROUNDING INSTRUCTIONS

The charger must be grounded. If it should malfunction or breakdown, grounding provides a path of least resistance for electric current to reduce the risk of electric shock. This unit is equipped with a cord having equipment grounding conductor and grounding plug. The plug must be inserted into an appropriate outlet that is properly installed and grounded in accordance with all local codes and ordinances.

WARNING RISK OF ELECTRIC SHOCK
Improper connection of the unit-grounding conductor can result in a risk of electric shock. Check with a qualified electrician or service person if you are in doubt as to whether the outlet is properly grounded. Do not modify the plug provided with the unit by removing the ground pin on the plug – if the plug will not fit the outlet, have a proper outlet installed by a qualified electrician.

This unit is for use on a nominal circuit and has a grounding attachment plug. Make sure that the unit is connected to an outlet having the same configuration as the plug. No adapter should be used with this unit.

Source: Kaivac UniVac Operator Manual MANUALXCU_ONLINE- Rev. 2026, page 7, used with permission. SES ref PF-BO34-POG5‌‌​⁠​‌⁠‍‍‍⁠​⁠⁠‍‌⁠⁠‍​​​​​​​‌⁠​​​‌​⁠​​​‍​‌​⁠⁠​⁠​​​‍⁠​⁠​⁠‍‍⁠‌‌‍
UniVac MANUALXCU_ONLINE- (2026)Page 7 of 23
GROUNDING INFORMATION

GROUNDING INFORMATION (CONTINUED)

Make sure your extension cord is in good condition and is the correct size for your unit. Table 1 shows the correct size to use depending on cord length and nameplate ampere rating. If in doubt, use the next heavier gauge. The smaller the gage number, the heavier the cord. An undersized extension cord will cause a drop in line voltage resulting in loss of power and overheating.‌‌​⁠​‌⁠‍‍‍⁠​⁠⁠‍‌⁠⁠‍​​​​​​​‍​​​​‌​⁠​​‌⁠​‌⁠​‍⁠⁠​​‌​‍⁠‌​​‍‍‍​​‌

Use only three-wire outdoor extension cords that have three-prong grounding receptacles that accept the unit's plug.

WARNING! RISK OF ELECTRIC SHOCK OR FIRE. To reduce the risk of personal injury due to a loose electrical connection between the unit's plug and extension cord, firmly and fully attach the unit plug to the extension cord. Periodically check the connection while operating the unit to ensure it is fully attached. Do not use an extension cord that provides a loose connection. A loose connection may result in overheating, fire, and increases the risk of a burning.

To reduce the risk of disconnection of the unit's cord from the extension cord during operations:

  • Make a knot as shown in Figure 1 below:
Two drawings of a looped cord knot. (A) Tie cord as shown: the cord set (extension cord) and the appliance cord, labeled, are crossed in a knot with the unplugged plug and receptacle at the top. (B) Connect plug and receptacle: the same knot with the plug connected to the receptacle.
Figure 1 - Method of securing the appliance cord to the extension cord set
Table 1 - Minimum gauge for extension cords
Ampere rating: More than, AAmpere rating: Not more than, AVoltsTotal length of cord
7.62 m (25 ft)15.24 m (50 ft)30.48 m (100 ft)45.72 m (150 ft)
120 Vmm² (AWG)
06—0.82 (18)1.3 (16)1.3 (16)2.1 (14)
610—0.82 (18)1.3 (16)2.1 (14)3.3 (12)
1012—0.82 (18)1.3 (16)2.1 (14)3.3 (12)
Source: Kaivac UniVac Operator Manual MANUALXCU_ONLINE- Rev. 2026, page 8, used with permission. SES ref PF-4JDI-KRH4‌‌​⁠​‌⁠‍‍‍⁠​⁠⁠‍‌⁠⁠‍​​​​​​​‍​​​​‌​⁠​​‌⁠​‌⁠​‍⁠⁠​​‌​‍⁠‌​​‍‍‍​​‌
UniVac MANUALXCU_ONLINE- (2026)Page 8 of 23
UNIT COMPONENTS

UNIT COMPONENTS

In short This page identifies the main parts of the unit with lettered drawings and lists the base unit accessories with their part numbers. Use the letters to match each part to its name.‌‌​⁠​‌⁠‍‍‍⁠​⁠⁠‍‌⁠⁠‍​​​​​​​‍‌​​​‌​⁠​​‌‌​⁠‍​‌‍​‌‌‌⁠​​​‌​​​‌‍⁠‍
Two views of the unit with lettered callouts A to P. Left view shows the vacuum head, stobs, vacuum hose port, vacuum tank, casters, dump hose, chassis, locking clasps and spigot handle. Right view shows the spreader handle, vacuum wand, grout brush, squeegee vac head, pad holder, spigot and vacuum hose stored on the chassis.
KeyComponent
AVacuum Head
BStob (Corded Units)
CVacuum Hose Port
DVacuum Tank
ECasters
FDump Hose
GChassis
HLocking Clasps
ISpigot Handle
JSpreader Handle
KVacuum Wand
LGrout Brush
MSqueegee Vac Head
NPad Holder
OSpigot
PVacuum Hose

BASE UNITS

Base unit accessories with callouts A to G: spreader pad holder, squeegee vac head, vacuum hose coil, spreader pads, spreader handle, vacuum wand with grout brush, and GFCI cord coiled.
KeyComponentPart number
ASpreader Pad Holder#MFMH
BSqueegee Vac Head#CVS12SFS
CVacuum HoseCorded Units - #FS25
Battery Units - #FS8
DSpreader Handle#MFHNDLSA
EVacuum Wand#ODVKIT8
FSpreader PadsBlue - #WPPB
Green - #WPPG
GGFCI Cord (Corded Units)#GFCI25
Source: Kaivac UniVac Operator Manual MANUALXCU_ONLINE- Rev. 2026, page 9, used with permission. SES ref PF-TWBF-T2YF‌‌​⁠​‌⁠‍‍‍⁠​⁠⁠‍‌⁠⁠‍​​​​​​​‍‌​​​‌​⁠​​‌‌​⁠‍​‌‍​‌‌‌⁠​​​‌​​​‌‍⁠‍
UniVac MANUALXCU_ONLINE- (2026)Page 9 of 23
SETUP/BASIC OPERATION

SETUP/BASIC OPERATION

WARNING DO NOT use a damaged unit or a unit with a damaged battery. Inspect battery, housing, plug, cord, splash cover (if applicable), and helmet (if applicable) for damage, including cracks, separation, dents, holes, missing, pieces, and fraying cord or wires. Check all cords, hoses, and spray lines for damage prior to use. If damage is found, do not continue until proper repairs are completed. If using a legacy unit equipped with a fabric splash cover, ensure the cover is flipped over the battery top. Newer battery models may also be equipped with a chemical-resistant plastic protective helmet and fabric splash cover, ensure cover is flipped over helmet top. DO NOT remove helmet if included.
WARNING NEVER USE a damaged unit or a unit with damaged battery. Always check all hoses and spray lines damage prior to use. Using a damaged unit and failure to inspect it prior to use may result in electrical shock, fire, explosion, serious personal injury or even death.
WARNING NEVER spray unit directly with any liquids, water, hose, or spray gun. Corrosive liquids, water, and chemicals may enter battery or unit components which can result in an increased risk of fire and serious personal injury.
NOTICE Fill the tank with water and recommended amount of Kaivac approved Chemicals. Follow the proper dilution instructions on bottles or dispenser. For accuracy and convenience, use Kaivac proportioned chemical packets. If a chemical is being used, use only KAIVAC APPROVED CHEMICALS AT the recommended dilution.

INSTALLING BATTERY AND CHARGING

In short This page covers installing and charging the battery, preparing the unit, filling the tank, changing attachments and starting to vacuum. Inspect the unit for damage before every use and never spray it directly with liquids.‌‌​⁠​‌⁠‍‍‍⁠​⁠⁠‍‌⁠⁠‍​​​​​​​‍‍​​​‌​⁠​​⁠​​​‍⁠‌‌​⁠‍‌‍​⁠⁠⁠‍‍​​‍​​

Batteries and chargers: make sure your charger is compatible with your batteries, and set its charging algorithm to your battery pack before you use it.

Battery units only‌‌​⁠​‌⁠‍‍‍⁠​⁠⁠‍‌⁠⁠‍​​​​​​​‍‍​​​‌​⁠​​⁠​​​‍⁠‌‌​⁠‍‌‍​⁠⁠⁠‍‍​​‍​​

See Figures 1 - 3, page 11

  • Lower battery down into the battery housing.
  • To see battery charge, press the charge indicator on the top of the battery.
  • Connect the plug from the battery housing into the vacuum motor plug.
  • To charge the battery, keep the battery in the battery housing. Locate the cord wrapped around the cleats connected to the battery housing, plug into an outlet to begin charging .

PREPARING UNIT FOR USE

See Figures 4 -8 , page 11-12

  • Ensure Vacuum motor is in place on the vacuum tank. Ensure top clasps are secured. Ensure float cage is in place and clean.
CAUTION RISK OF INJURY
Do not use if float cage is not in place.
  • Locate switch panel on vacuum head. This is used to operate the vacuum function.
  • Note the Chassis, keep the hole clear when dispensing water. Use as tool storage for the vacuum wand and speed spreader as needed.
  • Unplug battery from charger if applicable. Avoid getting water on unit.
  • Inspect battery, housing, plug, cord, splash cover (if applicable), and helmet (if applicable) for damage, including cracks, separation, dents, holes, missing, pieces, and fraying cord or wires.

FILLING THE UNIT

See Figures 9 - 13, pages 11-12

  • Note the location of the Fill Marker inside the vacuum tank. The tank can hold up to 10 gallons of water. Do not fill past the Fill Line.
  • Ensure spigot is closed before filling.
CAUTION If spigot is not closed, water will leak.
  • To fill the unit, undo the clasps on the vacuum tank and lift the vacuum head off of the unit. Safely place down the vacuum head. Fill the unit with clean, cold water. Avoid getting water on the unit, and ensure the splash guard is in place if applicable. Clean out tank before each use.
NOTICE
  • Fill the tank with water and recommended amount of Kaivac approved Chemicals. Follow the proper dilution instructions on bottles or dispenser. For accuracy and convenience, use Kaivac proportioned chemical packets.
  • If using a cleaning product that foams, use a foam inhibitor to cut excess. Pour 2 capfuls of inhibitor in the Vacuum Hose with Vac running to coat inside of Vacuum Hose.
CAUTION Risk of motor damage
  • Foaming chemicals in tank may damage Vac Motor.

INSTALLING/REMOVING ATTACHMENTS

See Figures 14 - 16, page 12

  • To attach different accessories to the end of the vacuum wand, start by loosening the coupler nut of the wand. Insert the accessory tool, and tighten the coupler nut.
  • Ensure the brass ring inside the coupler nut of the vacuum wand stays in place and does not get lost when changing accessories or taking apart.
  • To use accessories without the vacuum wand, push the desired accessory tool directly into the end of the vacuum hose.
  • Place the vacuum wand and spreader tool into the chassis when not in use.

VACUUMING

See Figure 17, page 12

  • Locate the vacuum hose on the back of the unit. Ensure hose cuff is connected to the port at the top of the unit. Using the other end of the hose, attach the hose cuff to the vacuum wand or desired accessory, and power on the unit to begin using floor squeegee.
Source: Kaivac UniVac Operator Manual MANUALXCU_ONLINE- Rev. 2026, page 10, used with permission. SES ref PF-NT7V-UKMJ‌‌​⁠​‌⁠‍‍‍⁠​⁠⁠‍‌⁠⁠‍​​​​​​​‍‍​​​‌​⁠​​⁠​​​‍⁠‌‌​⁠‍‌‍​⁠⁠⁠‍‍​​‍​​
UniVac MANUALXCU_ONLINE- (2026)Page 10 of 23
FIGURES
Battery pack being lowered by hand, with a yellow handle and a down arrow, into the battery housing on the machine; callouts A battery pack, B battery housing, C guide rail
Fig. 1 - A - Battery pack, B - Battery Housing, C - Guide Rail
Close-up of the top of the yellow battery pack showing the KAIVAC name and an arrow pointing to the charge indicator
Fig. 2 - Battery Pack charge indicator
Machine with battery housing mounted on its side; arrows show the vacuum head power cord and battery housing power cord connection, with the battery charging cord below; callouts A, B and C
Fig. 3 - A - C20 Vacuum head power cord, B - C19 Battery housing power cord, C - Battery charging cord
Vacuum head lifted off the tank showing the vacuum motor, float cage, float basket and the locking clasps on the tank rim; callouts A to D
Fig. 4 - A - Vacuum Motor, B - Float Cage, C - Float Basket, D - Locking clasps
Top of the machine with the vacuum motor switch panel showing a green I button and a red O button; callout A
Fig. 5 - A - Vacuum Motor Switch Panel
Machine tank sitting on a wheeled chassis base with four casters
Fig. 6 - Chassis
Hand pulling the battery charger plug out, with a large orange arrow pointing left
Fig. 7 - Battery Charger plug.
Hand holding a power cord with a plug and an orange arrow pointing to a point on the cord
Fig. 8
Vacuum tank spigot, a gray hose-end fitting on the tank, shown in the OFF position
Fig. 9 - Vacuum Tank spigot "OFF" position.
Inside of the tank looking down, with a fill marker plate on the inner wall and an arrow
Fig. 10 - Fill Marker
Source: Kaivac UniVac Operator Manual MANUALXCU_ONLINE- Rev. 2026, page 11, used with permission. SES ref PF-W2N2-J4HW‌‌​⁠​‌⁠‍‍‍⁠​⁠⁠‍‌⁠⁠‍​​​​​​​‍⁠​​​‌​⁠​​‌​⁠‍⁠​‍‌‍​‌‌‍​⁠‍⁠​​‌⁠⁠‌​
UniVac MANUALXCU_ONLINE- (2026)Page 11 of 23
OPERATION
Gloved hand holding a hose and filling the open vacuum tank with clean water, with a blue stream of water entering the tank
Fig. 11 - Filling Vacuum Tank with clean water.
Gloved hand pouring a pouch of proportioned chemical into the vacuum tank opening
Fig. 12 - Proportioned Kaivac Approved chemical inside Vacuum Tank.
Person holding a vacuum hose (A) with a foam inhibitor (B) being added at the hose end, next to a jug of Bubble Buster foam chemical (C)
Fig. 13 - Foaming chemicals only. A - Vacuum Hose, B - Foam Inhibitor, C - Foam Chemical
Coupler nut (A) and coupler (B) on the vacuum wand (C), with an arrow showing the nut being turned to attach the squeegee head (D)
Fig. 14 - A - Coupler Nut, B - Coupler, C - Vacuum Wand, D - Squeegee Head
Brass ring with a gap, marked with a yellow exclamation mark, that sits inside the coupler nut
Fig. 15 - Brass Ring inside Coupler Nut.
Yellow vacuum hose cuff (A) on the vacuum hose (B) and a desired accessory (C) with a yellow fitting that connects to it
Fig. 16 - A - Vacuum Hose Cuff, B - Vacuum Hose, C - Desired Accessory
Operator standing and using the vacuum wand with a squeegee head to pick up water from a floor, with the vacuum hose trailing behind
Fig. 17
Source: Kaivac UniVac Operator Manual MANUALXCU_ONLINE- Rev. 2026, page 12, used with permission. SES ref PF-RFF7-3ZKK‌‌​⁠​‌⁠‍‍‍⁠​⁠⁠‍‌⁠⁠‍​​​​​​​⁠​​​​‌​⁠​​‌​⁠​‍⁠‌⁠‍​‌‍⁠‌‌​​‌⁠‌‌​‌‍
UniVac MANUALXCU_ONLINE- (2026)Page 12 of 23
UNIVAC OPERATION

UNIVAC OPERATION

In short This page covers dispensing solution from the rear of the area to the front, turning the spigot off, spreading the solution, then vacuuming the floor. It ends with the Slap & Tap step to clear debris and fluids from the wand.‌‌​⁠​‌⁠‍‍‍⁠​⁠⁠‍‌⁠⁠‍​​​​​​​⁠‌​​​‌​⁠​​‍‌⁠‍‌⁠‌‍‍​​‌‍‍‌⁠⁠​‍⁠​​‍‍
  • After the unit has been filled with the appropriate amount of water/solution, turn the Spigot handle counter clockwise to MAX position. Beginning at the rear of the area, begin dispensing solution, moving towards the front of the area (Fig. 18).
  • Beginning at the rear of the area, begin dispensing solution, moving towards the front of the area. Park unit so that it blocks entry to area (Fig. 19).
  • Turn Spigot clockwise to the OFF position (Fig. 20).
  • Use Spreader Tool in back-and-forth motion to cover floor with cleaning solution. *Agitate Spreader Tool over troubled or extra soiled areas to get a deeper clean* (Fig. 21).
  • Attach Vacuum Wand to Vacuum Hose (if not already connected). The yellow portion of the hose will connect to the wand. The black portion will be connected to the tank. (Fig. 22). If corded, plug in provided extension cord to vacuum motor. If battery unit, ensure battery is charged and place into battery housing. Turn Vacuum Motor to ON (I).
  • Vacuum floor surface diagonally to grout lines, reaching under shelves, seating etc. (Fig. 23).
  • Slap & Tap: Once Vacuuming is complete, keep motor running. Slap Vacuum Wand on floor 3-4 times to dislodge debris from squeegee head. Then, invert Wand and Tap 4-5 times to dislodge any fluids or substance from Wand (Fig. 24).
A hand turning the black spigot handle counter clockwise, shown with an orange arrow, above a view of solution flowing from the spigot outlet on the unit
Fig. 18
Diagram of the area to be cleaned with the unit at the end. Arrows run from Start, the back of the area, toward the front of the area
Fig. 19
A hand turning the black spigot handle clockwise to the OFF position, shown with an orange arrow
Fig. 20
A person standing on a tiled floor moving a spreader tool back and forth over a patch of blue cleaning solution
Fig. 21
Hands connecting the yellow end of the vacuum hose to the vacuum wand, with red arrows showing the twisting motion
Fig. 22
A person vacuuming a puddle of blue solution on a tile floor with the wand, working diagonally to the grout lines
Fig. 23
A person slapping the vacuum wand on the floor, labeled Slap!, then inverting the wand and tapping it, labeled Tap!
Fig. 24
Source: Kaivac UniVac Operator Manual MANUALXCU_ONLINE- Rev. 2026, page 13, used with permission. SES ref PF-S7FR-V4Z2‌‌​⁠​‌⁠‍‍‍⁠​⁠⁠‍‌⁠⁠‍​​​​​​​⁠‌​​​‌​⁠​​‍‌⁠‍‌⁠‌‍‍​​‌‍‍‌⁠⁠​‍⁠​​‍‍
UniVac MANUALXCU_ONLINE- (2026)Page 13 of 23
DAILY & GENERAL MAINTENANCE

DAILY & GENERAL MAINTENANCE

The unit should be checked, emptied, and cleaned after each use.‌‌​⁠​‌⁠‍‍‍⁠​⁠⁠‍‌⁠⁠‍​​​​​​​⁠‍​​​‌​⁠​​⁠‌​​‍‌​⁠​‌‍⁠​‍​‌​​‌‌⁠⁠​‍

Unit should be turned OFF (O) unless specified.

EMPTYING THE VACUUM TANK

In short Check, empty and clean the unit after each use. Empty the full vacuum tank into a sink or drain, rinse the tank and trolley bucket, clean the float cage and filter bag, and check the squeegee blades.‌‌​⁠​‌⁠‍‍‍⁠​⁠⁠‍‌⁠⁠‍​​​​​​​⁠‍​​​‌​⁠​​⁠‌​​‍‌​⁠​‌‍⁠​‍​‌​​‌‌⁠⁠​‍
  • If the Vacuum Motor shuts off before the job is complete, the Vacuum Tank may be full and need to be emptied. Lift the Vacuum Head to check liquid level inside the Vacuum Tank. If unit is full or your job is complete, follow the instructions below to empty Tank into appropriate sink/drain.
  • To begin the dumping process, you must first press down on the Cap and turn counter-clockwise (Fig. 25).
  • Once cap is removed, lower Dump Hose into appropriate sink/drain (Fig. 26).
NOTICE To prevent an accidental spill or overflow from the Dump Hose, be careful to keep hose end upright until it is over sink/drain.

CLEANING UNIT

  • Alternatively, you can also turn the Vacuum ON (I) and dispense solution into Vacuum Hose as shown to clean Hose and Tank (Fig. 27).
  • Rinse Vacuum Tank thoroughly at clean-up sink, preferably with hot water. Rinse out Trolley Bucket (Fig. 28).

CLEANING UNIT FILTERS

  • Lift the Vacuum Head. Clean and spray the Float Cage located inside the Vacuum Head. Ensure Float Cage is in place. Clean Float Cage regularly Do not use if Float Cage is not in place (Fig. 29).
  • If unit contains mesh Filter Bag located inside the Vacuum Tank, before starting each new cleaning process, remove Filter Bag, dump any debris out, spray clean, and then replace back into the Filter Bag Frame (Fig. 30).

SQUEEGEE BLADES & ACCESSORIES

  • Check for worn squeegee blades. Worn blades cause streaking and loss of vacuum suction.
  • Replace with new every 6-8 weeks. Ensure squeegee blades are replaced with the ribbed portion facing outwards (Fig. 31).
  • Clean off accessories and build-up on parts and tools (Fig. 32).
Top of the vacuum tank with the cap and hose hook, with arrows labeled PRESS DOWN and TURN showing the cap is pressed down and turned counter-clockwise
Fig. 25
Dump hose lowered from the vacuum tank into a sink, with water flowing out of the hose end into the drain
Fig. 26
Solution dispenser with four bottles above it and a hand placing the vacuum hose end under the dispenser to draw solution through the hose
Fig. 27
Vacuum tank on its trolley being rinsed with a spray hose, with a dashed blue pattern inside the tank and an arrow showing water draining out the dump hose into a floor drain
Fig. 28
Vacuum head lifted off with a spray hose cleaning the float cage underneath
Fig. 29
Top: a hand lifting the mesh filter bag in its yellow frame out of the vacuum tank. Bottom: the filter bag and frame being sprayed clean with a spray hose
Fig. 30
Squeegee tool with a close-up circle of the blade, with arrows showing the ribbed portion of the blade facing outwards
Fig. 31
Spray hose rinsing a wand with a brush attachment to clean accessories
Fig. 32
Source: Kaivac UniVac Operator Manual MANUALXCU_ONLINE- Rev. 2026, page 14, used with permission. SES ref PF-EGI5-2NRI‌‌​⁠​‌⁠‍‍‍⁠​⁠⁠‍‌⁠⁠‍​​​​​​​⁠‍​​​‌​⁠​​⁠‌​​‍‌​⁠​‌‍⁠​‍​‌​​‌‌⁠⁠​‍
UniVac MANUALXCU_ONLINE- (2026)Page 14 of 23
UNIT & MAINTENANCE

UNIT & MAINTENANCE

In short This section lists what to check and do for each part of the unit, from the floor squeegee to the battery and splash cover. Always unplug the unit before servicing or inspecting it.‌‌​⁠​‌⁠‍‍‍⁠​⁠⁠‍‌⁠⁠‍​​​​​​​⁠⁠​​​‌​⁠​​‍‌‌‍⁠​‍⁠⁠‌​​​‌‌‌​⁠⁠​​‍‌‍
Warning label with an electric shock symbol and the heading WARNING, RISK OF ELECTRIC SHOCK OR FIRE, reading: Always unplug unit before servicing unit or inspecting.
WARNING! RISK OF ELECTRIC SHOCK OR FIRE. Always unplug unit before servicing unit or inspecting.
ITEMPROCEDURE
Floor Squeegee
  • Check condition of 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 needed.
  • 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 into 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 blocked or dirty. 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.
  • Electrical cord must be inspected for tears or cuts in the insulation.
  • Inspect plug and be sure ground pin is in place.
Vacuum Wand
  • Use a wire or coarse brush with acid cleaner to remove residue from threads on the coupling and coupling nut. Apply grease when done.
HEPA Filter
  • Replace every 3-6 months depending on use.
Float Cage
  • Ensure cage is sprayed and cleaned daily to remove debris.
Battery Maintenance
  • Inspect battery, plugs, cords, splash cover (if included), and chemical-resistant plastic protective helmet (if included) before charging and after charging.
  • Charge and store battery indoors.
  • If included, the battery splash cover must remain in place. Without the battery splash cover, the battery housing may become damaged which may cause the battery to malfunction, which can result a fire, explosion, personal injury, and/or property damage.
  • Always keep helmet affixed to top of battery if your battery is so equipped.
  • To view the battery, temporarily move the splash cover (if included). Replace the splash cover after inspection. Do not use unit if battery shows any damage, including cracks, dents, holes, fraying, or missing pieces.
  • Once your battery run time is less than 55% (50 minutes for non-quick change and 30 minutes for quick change batteries), contact Kaivac to replace your battery. Regardless of run time, replace your battery after 4 years. Consult Kaivac.com for information on recycling your old battery.
  • DO NOT attempt to repair, service or modify the batteries or charger. Contact Kaivac Technical Support with any issues.
  • DO NOT use or store the NTC System or battery in refrigerated areas, in environments when the battery is in direct contact with liquids, or near flammable or combustible materials.
  • DO NOT charge or store battery for extended time (1 month or more) in temperatures below 40°F (4°C).
  • DO NOT use a battery or appliance that is damaged or modified. Damaged or modified batteries may exhibit unpredictable behavior resulting in fire, explosion or risk of injury.
  • If unit is smoking or sparking, move outside to a fire-safe location immediately. If possible, disengage battery from unit, notify management, and call Kaivac Technical Support at 800-287-1136, Ext. 2
Splash Cover (if applicable)
  • Inspect splash cover for damage.
  • Clean and dry the splash cover.
  • Be sure the splash cover is secure.
Source: Kaivac UniVac Operator Manual MANUALXCU_ONLINE- Rev. 2026, page 15, used with permission. SES ref PF-4SM5-ENUM‌‌​⁠​‌⁠‍‍‍⁠​⁠⁠‍‌⁠⁠‍​​​​​​​⁠⁠​​​‌​⁠​​‍‌‌‍⁠​‍⁠⁠‌​​​‌‌‌​⁠⁠​​‍‌‍
UniVac MANUALXCU_ONLINE- (2026)Page 15 of 23
ELECTRICAL DIAGRAMS

DC STANDARD ELECTRICAL DIAGRAM

In short This page shows the wiring diagram for the DC standard model. It covers the battery housing assembly, with the 36VDC battery pack, IOT device and 36V DC charger, and the vacuum motor head assembly, with the vac switch and 36VDC vacuum motor.‌‌​⁠​‌⁠‍‍‍⁠​⁠⁠‍‌⁠⁠‍​​​​​​‌​​​​​‌​⁠​​‌⁠‌‌⁠‌⁠‍​⁠⁠‌‌⁠⁠⁠‌⁠⁠‍⁠‍⁠‍

Batteries and chargers: make sure your charger is compatible with your batteries, and set its charging algorithm to your battery pack before you use it.

Wiring diagram in two shaded panels. The left panel, Battery Housing Assembly, shows a 36VDC battery pack with charge indicator, USB jack and BMS, a 36 VDC battery pack, an IOT device, and a 36V DC charger (output 42VDC 4A max, input 120 VAC 1.4 Amps). The charger connects through a 2-wire SJT cable with IEC C7 connector to a NEMA 1-15P 120V plug, and a 3-wire SJT IEC cable with C19 connector runs at the top. Color-coded wires (red, black, green, white) are labeled by AWG size. The right panel, Vacuum Motor Head Assembly, shows a 3-wire SJT IEC cable with C20 connector feeding a KJD32 vac switch and a 36VDC vacuum motor, with black, white, green and red 14 AWG wires.

Customer/Technical Support
1-800-287-1136‌‌​⁠​‌⁠‍‍‍⁠​⁠⁠‍‌⁠⁠‍​​​​​​‌​​​​​‌​⁠​​‌⁠‌‌⁠‌⁠‍​⁠⁠‌‌⁠⁠⁠‌⁠⁠‍⁠‍⁠‍

Source: Kaivac UniVac Operator Manual MANUALXCU_ONLINE- Rev. 2026, page 16, used with permission. SES ref PF-V3UZ-UZP7‌‌​⁠​‌⁠‍‍‍⁠​⁠⁠‍‌⁠⁠‍​​​​​​‌​​​​​‌​⁠​​‌⁠‌‌⁠‌⁠‍​⁠⁠‌‌⁠⁠⁠‌⁠⁠‍⁠‍⁠‍
UniVac MANUALXCU_ONLINE- (2026)Page 16 of 23
ELECTRICAL DIAGRAMS

AC STANDARD ELECTRICAL DIAGRAM

In short This page shows the wiring diagrams for the vacuum head: the standard AC version with a 120VAC vacuum motor and the international AC version with a 240VAC vacuum motor. Each shows how the power cable connects through the vac switch and fuse to the motor.‌‌​⁠​‌⁠‍‍‍⁠​⁠⁠‍‌⁠⁠‍​​​​​​‌​‌​​​‌​⁠​​​​‌‌⁠‌‌‌‍‍‍⁠‌⁠⁠‌⁠‍‌‍‍‍⁠⁠
Wiring diagram of the standard AC version: a 3-wire SJTW cable with NEMA 5-15 plug connects white 16 AWG, black 16 AWG and green 16 AWG wires into the vac head. The white wire goes to the vac switch, the black wire goes to the 120VAC vacuum motor and switch circuit with a fuse, and the green wire joins green/yellow 18 AWG to the motor ground.
AC STANDARD ELECTRICAL DIAGRAM

AC INTL. ELECTRICAL DIAGRAM

Wiring diagram of the international AC version: a 3-wire SJTW cable with NEMA L7-15P plug, with terminals W, G and L, connects blue 18 AWG, brown 18 AWG and green/yellow 18 AWG wires into the vac head. The vac switch, fuse and 240VAC vacuum motor are inside the vac head, with the green/yellow wire going to the motor ground.
AC INTL. ELECTRICAL DIAGRAM
Source: Kaivac UniVac Operator Manual MANUALXCU_ONLINE- Rev. 2026, page 17, used with permission. SES ref PF-V7CT-FEKA‌‌​⁠​‌⁠‍‍‍⁠​⁠⁠‍‌⁠⁠‍​​​​​​‌​‌​​​‌​⁠​​​​‌‌⁠‌‌‌‍‍‍⁠‌⁠⁠‌⁠‍‌‍‍‍⁠⁠
UniVac MANUALXCU_ONLINE- (2026)Page 17 of 23
TROUBLESHOOTING

TROUBLESHOOTING

In short This section is a table of problems, possible causes and fixes for the electrical, vacuum and blow dry systems. Always unplug the unit before inspecting or servicing it, and turn the unit off immediately if there is an electrical burning smell.‌‌​⁠​‌⁠‍‍‍⁠​⁠⁠‍‌⁠⁠‍​​​​​​‌​‍​​​‌​⁠​​‍‍​‌​⁠⁠​⁠⁠‍‍‍​‍‌⁠​⁠‌‍‍‌‌
WARNING! Always unplug unit before inspecting or servicing.
RISK OF ELECTRIC SHOCK OR FIRE
AREAPROBLEMPOSSIBLE CAUSEREMEDY
ElectricalNo Power to pump or vac motorUnit not plugged inPlug unit in
Switch not “on”Check switches for “on”
GFCI trippedTest and reset GFCI
Building circuit overloadedCheck and reset circuit
Switch wires looseDisconnect power and check for loose wire
Connections looseDisconnect power and check for loose wire under panel
Electrical burning smell
WARNING! RISK OF FIRE, SERIOUS INJURY, OR DEATH
TURN UNIT OFF IMMEDIATELY.
Vac motor brushes wornRemove vac motor and repair
Vac motor hung upRelease pressure on hose and jog vac switch, or replace
Pump motor hung upRelease pressure on hose and jog pump switch, or replace
Vacuum SystemNo/Weak vacuumVac tank fullEmpty vac tank
Squeegee blades or wheels wornReplace wheels or blades and check periodically
Float shutoff screen dirtySpray off float screen to clean
Float ball stuckTap float and release/clean
Damaged hoseCut and repair/replace
Dump hose plug missingContact dealer and replace
Access lid not rightTighten lid hand tight
Vacuum hose pluggedFlush hose to remove debris
Too much liquid in vac hoseAllow air in when vacuuming
Vac hose still wrappedUnwrap vac hose fully
Exhaust pluggedClean exhaust port and HEPA filter
Leak in vac tankIf repairable, clean and dry affected area and seal with silicone
HEPA filter cloggedRemove HEPA filter and clean
Moisture from exhaustVac tank fullDump vac tank
Float shutoff missingReplace
Excessive foam in vac tankUse defoamer
Blow Dry SystemNo air flowHose disconnectedReconnect hose
Moisture from exhaustWater in blow hoseDry blow line
Suction, not blow actionVacuum hose connected to vac tankReconnect to vac motor exhaust hose
Source: Kaivac UniVac Operator Manual MANUALXCU_ONLINE- Rev. 2026, page 18, used with permission. SES ref PF-M5L5-CCBG‌‌​⁠​‌⁠‍‍‍⁠​⁠⁠‍‌⁠⁠‍​​​​​​‌​‍​​​‌​⁠​​‍‍​‌​⁠⁠​⁠⁠‍‍‍​‍‌⁠​⁠‌‍‍‌‌
UniVac MANUALXCU_ONLINE- (2026)Page 18 of 23
TROUBLESHOOTING

TROUBLESHOOTING

In short This table lists problems by system area, with the possible causes and the matching solutions. This page covers the High Pressure System (no water or low pressure, bad spray pattern) and the Chemical Injection System (no chemical flow).‌‌​⁠​‌⁠‍‍‍⁠​⁠⁠‍‌⁠⁠‍​​​​​​‌​⁠​​​‌​⁠​​‍⁠⁠⁠‌​⁠​‍​‌⁠‌​‌⁠⁠⁠‍‌⁠‍‍⁠
AREAPROBLEMPOSSIBLE CAUSESOLUTION
High Pressure System
WARNING Always unplug unit before inspecting or servicing. RISK OF ELECTRICAL SHOCK, FIRE, SERIOUS INJURY, OR DEATH
No water from pump or low pressureOut of waterFill water tank
Gun nozzle pluggedRemove orifice with Allen wrench and clean
Air in pump (vapor lock)Use power prime technique
Gun orifice missingReplace orifice
Water tank filter pluggedClean tank and filter
In-line bowl filter pluggedRemove filter cover and clean
Bowl filter lid looseGently tighten bowl cover
Pressure hose damagedRepair or replace
Quick disconnect leakingTighten or replace
Injector pluggedRemove safety cap from chemical and blow small amounts of compressed air into line
Pulse hose damagedRepair or replace
Regulator failedReplace
Hose kinkedUnkink and check for damage
Seals in pump need replacedRemove and replace seals
Bad fan pattern or pinpoint pattern on gunDebris in nozzleRemove orifice with Allen wrench and clean
Orifice damagedRemove and replace
Chemical Injection System
WARNING Always unplug unit before inspecting or servicing. RISK OF ELECTRICAL SHOCK, FIRE, SERIOUS INJURY, OR DEATH
No chemical flowOut of chemicalRefill chemical
Safety cap not secureCheck safety cap/tighten
Chemical valve “off”Check on/off valve
Safety cap pluggedReplace cap
Spray gun in wrong modeMake sure gun nozzle is pulled out away from gun chemical mode
Metering tip pluggedCheck metering tip for clog
Injector pluggedRemove safety cap from chemical and blow small amounts of compressed air into line
Air entering systemCheck for air entering system around chemical lines or injector
Injector installed backwardsIf fluttering or pulsing sound can be heard while spraying or when unit is running, it is possible that your injector is in backwards. Remove; reinstall.
Kink in chemical lineReplace chemical line
Source: Kaivac UniVac Operator Manual MANUALXCU_ONLINE- Rev. 2026, page 19, used with permission. SES ref PF-G5WN-4M2A‌‌​⁠​‌⁠‍‍‍⁠​⁠⁠‍‌⁠⁠‍​​​​​​‌​⁠​​​‌​⁠​​‍⁠⁠⁠‌​⁠​‍​‌⁠‌​‌⁠⁠⁠‍‌⁠‍‍⁠
UniVac MANUALXCU_ONLINE- (2026)Page 19 of 23
TROUBLESHOOTING

TROUBLESHOOTING

AREAPROBLEMPOSSIBLE CAUSESOLUTION
Chemical Injection System continuedNot enough chemicalMetering tip pluggedRemove and clean
Wrong metering tipCheck and replace per chart
Chemical line blows off safety capDebris in injectorRemove safety cap from chemical and blow small amounts of compressed air into line
Water back flows into chemical bottleBad seat on injector check valveCheck injector o-ring or replace
Bad safety capReplace safety cap
Dump SystemDump hose will not empty tankDump hose cap not removedRemove cap
Clog in bottom of tankTip dump contents, remove debris
Dump hose leaksHose cutIf leak is less than 4” from tank side, cut and reattach, or replace
Clamp looseTighten hose clamp
Dump cap missingReplace cap
Wheels and CastersWheels will not roll; rubbingFlat tiresInflate tires to 30 p.s.i.
Debris wrapped around axleCheck for debris on axle
Bearings tightGrease bearings
Wheels too loose on axleRemove wheel, add washers to take up slack
Bearings falling outReplace bearing assembly
Squeegee HeadFloor streaksWorn blades or wheelsReplace wheels and/or blades
Squeegee head does not easily rotate when installed on wandBrass ring on wand not in grooveLoosen coupling nut and re-position head on groove
Coupling nut too tightLoosen 1/2 turn
Head will not stay on wandCoupling nut crackedReplace
Brass ring wornReplace
Premature blade wearSqueegee wheels wornCheck wheels for wear/replace
Sucks to the floor too tightlySqueegee wheels wornCheck wheels for wear/replace
Battery
WARNING RISK OF FIRE, EXPLOSION, AND SERIOUS INJURY, OR DEATH
Sparks/Burning/Fire/Smoke
STOP USE IMMEDIATELY
Damage to battery or chargerStop use immediately. Disconnect battery from charger, if possible. Unplug charger, if possible.
Source: Kaivac UniVac Operator Manual MANUALXCU_ONLINE- Rev. 2026, page 20, used with permission. SES ref PF-HFCX-SZFJ‌‌​⁠​‌⁠‍‍‍⁠​⁠⁠‍‌⁠⁠‍​​​​​​‌‌​​​​‌​⁠​​⁠‍​‍‍⁠‌​​‍‌‌‌‌​‌‍‌⁠⁠⁠‌‍⁠
UniVac MANUALXCU_ONLINE- (2026)Page 20 of 23

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