Tornado Floorkeeper 20 PD/99120B Manual

1
TORNADO INDUSTRIES, LLC
3101 WICHITA COURT
FORT WORTH, TX 76140
PHONE 800-VACUUMS
FAX [phone]
WWW.TORNADOVAC.COM
Operations & Maintenance Manual
For Commercial Use Only
Form No. L9120AA 08/19 ©Tornado Industries, LLC. All rights reserved
AUTOMATIC SCRUBBERS
Floorkeeper 20 PD/99120B
Floorkeeper 20 TD/99120D
Floorkeeper 20 OB/99120ORB
Floorkeeper 24 TD/99124D
Save These Instructions

2
10 Years*
Plastic water tanks and Rotationally-molded bodies
2 Years*
Parts on all Tornado cleaning equipment
1 Year*
Labor on all Tornado cleaning equipment
1 Year*
Warranty on batteries, one year prorated
All battery warranties are handled directly by the battery manufacturer, on a one year prorated basis
Long -Term Buyer Protection Limited Warranty
Tornado Industries, LLC. warrants to the end user/ customer that the Tornado product(s) will be free from
defects in material and workmanship for the duration(s) described below. This limited warranty DOES NOT
cover machines and/or components subject to normal wear and tear, damage that occurs in shipping,
failures resulting from modication, accident, unsuitable operating environment, misuse, abuse, neglect,
or improper maintenance. For full details, contact your Authorized Tornado Distributor, Service Center, or
the Tornado Technical Service Department. Tornado sales and service representatives are not authorized to
waive or alter the terms of this warranty, or to increase the obligations of Tornado under the warranty.
Terms subject to change without notice
1. All Windshear™ Blowers, Storm, TV2SS, Side and Downdraft, Insulation Blowers, CV 30, CV 38, CK14/1
PRO, CK 14/1 BSE, CK14/2 PRO, SWM 31/9, CK LW13/1, CK LW 13/1 ROAM, CV 38/48 Dual, PV6, PV10, PV6
ROAM, Wall Mount Vacuum and all chargers are warranted for 1 (one) year for both parts and labor.
2. All non-wear item parts purchased after warranty expiration are warranted for 90 days.
3. Warranty starts from either: The date of sale to the consumer, or 6 months after the dealer purchased
the unit from Tornado (at Tornado’s discretion), whichever comes rst.
4. The EB 30 is warranted for a period of 90 days for both parts and labor.
5. Propane-powered equipment engines are limited to the engine manufacturer’s warranty.
6. Ride-on Scrubbers are warranted for 24 months parts, and 6 months labor, or 1,000 hours, whichever
occurs rst.
Note: Tornado, The Latest Dirt, Floorkeeper, Carpet-
keeper, Carpetrinser, Carpetrinser/Dryer, Headmaster,
Taskforce, PAC-VAC, T-Lite, Glazer, Windshear, Max-Vac
and Trot-Mop are trademarks of Tornado Industries
Website: www.tornadovac.com
Phone 1-800-VACUUMS
Fax [phone]
Address 3101 Wichita Court
Fort Worth, TX 76140
Form F2662.©2019. All rights reserved
1-800-VACUUMS Over 91 Years of Cleaning Innovation A Tacony Company

3
NOTES

4
GROUNDING INSTRUCTIONS
This appliance must be grounded. If it should malfunction or breakdown, grounding provides a path of least
resistance for electric current to reduce the risk electric shock. This machine is equipped with a cord having
an 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: Improper connection of the equipment-grounding conductor can result in a risk of electric
shock. Check with a qualied 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 appliance - if it will not t the outlet, have a
proper outlet installed by a qualied electrician.
This appliance is for use on a nominal 120-volt circuit, and has a grounding plug that looks like the plug
illustrated in sketch A.
Your new Tornado unit is a high quality, precision-made product. All parts used in the manufacturing of
this unit have passed rigid quality control standards prior to assembly. Please safeguard the original receipt
/ invoice. If you experience any problems with your unit during the warranty period, the original receipt /
invoice will act as proof of purchase. Contact Tornado for any warranty inquiries.
IMPORTANT SAFETY INSTRUCTIONS
READ AND UNDERSTAND ALL INSTRUCTIONS BEFORE USING THIS UNIT
Read and understand this owner’s manual and all labels on the unit before operating. Safety is a
combination of common sense, staying alert and knowing how your unit works. Use this unit only as
described in this manual. Use only manufacturer’s recommended attachments. To reduce the risk of personal
injury or damage to your unit use only Tornado recommended accessories.
GROUNDING
PIN
GROUNDING
OUTLET
GROUNDED
OUTLET BOX
A
This operator’s book has important information for the use and safe operation of this machine. Read this
book carefully before starting the machine. Keep this book near the machine, protected from liquids and
other substances that can cause damage to it. If you do not follow the instructions, you can cause an injury
or damage equipment, furniture or buildings. Carefully inspect all components to ensure that there is no
concealed freight damage. If such damage is discovered, le a“CONCEALED DAMAGE REPORT” immediately
with the delivering carrier. The contents of this manual are based on the latest product information available
at the time of publication. Tornado Industries LLC reserves the right to make changes or improvements
without being obliged to apply changes to the machines previously sold.

5
SAFETY PRECAUTIONS
This machine is intended for commercial use. Only use recommended pads or brushes and commercially approved oor cleaning
chemical intended for machine application.
The following symbols will be used to warn you of hazards or unsafe practices which could result in personal injury or death:
CAUTION: INDICATES A POTENTIALLY HAZARDOUS SITUATION WHICH, IF NOT AVOIDED, MAY RESULT IN MINOR OR
MODERATE INJURY.
WARNING: INDICATES A POTENTIALLY HAZARDOUS SITUATION WHICH, IF NOT AVOIDED, COULD RESULT IN DEATH OR
SERIOUS INJURY.
DANGER: INDICATES AN IMMINENTLY HAZARDOUS SITUATION WHICH, IF NOT AVOIDED, WILL RESULT IN DEATH OR SERIOUS
INJURY.
WARNING: Fire or explosion hazard: Never use ammable liquids or operate machine in or near ammable liquids, vapors
or combustible dusts. This machine is not equipped with explosion proof motors. The electric motors will spark upon start
up and during operation which could cause a ash re or explosion if machine is used in an area where ammable vapors/
liquids or combustible dusts are present.
WARNING: Do not pick up ammable or reactive materials.
WARNING: Batteries emit hydrogen gas. Keep sparks and open ame away. Keep battery compartment open when charging.
Perform this procedure in a well ventilated area.
WARNING: Electrical hazard. Disconnect battery cables before servicing.
CAUTION: Spinning brush. Keep hands away. Turn o power before working on machine.
CAUTION: Do not operate machine unless trained and authorized.
NOTE: Do not operate machine unless operator manual is read and understood.
CAUTION: Do not operate machine if it is not in proper operating condition.
CAUTION: When using the machine, go slow on inclines and slippery surfaces.
CAUTION: When using the machine, wear non-slip shoes.
CAUTION: When using the machine, reduce speed when turning.
NOTE: When using the machine, report machine damage or faulty operation immediately to your supervisor.
CAUTION: When using the machine, never allow children to play on or around it.
CAUTION: When using the machine, follow mixing and handling instructions on chemical containers.
WARNING: When using the machine, do not use the machine as a means for transport.
NOTE: Do not allow the brush/pad to operate while the machine is stationary to avoid damage to the oor.
CAUTION: Do not bump into shelves or scaoldings, especially where there is a risk of falling objects.
CAUTION: Before leaving or servicing a machine, stop it on a level surface.
NOTE: Before leaving or servicing a machine, turn o the unit and remove the key.
CAUTION: When servicing the machine, avoid moving parts. Do not wear loose jackets, shirts or sleeves
WARNING: When servicing the machine, do not wear jewelry when working near electrical components.
WARNING: When servicing the machine, disconnect battery connections before beginning work.
NOTE: Do not power spray or hose o the machine. Electrical malfunction may occur.

6
WARNING: When servicing the machine, do not work under the lifted machine without supporting it with safety stands.
NOTE: When servicing the machine, use manufacturer supplied or approved replacement parts.
NOTE: All repairs must be performed by a qualied service person.
CAUTION: When servicing the machine, do not modify the machine from its original design.
NOTE: When transporting the machine, turn the machine o.
CAUTION: When transporting the machine, do not lift the machine when batteries are installed.
CAUTION: When transporting the machine, get assistance when lifting the machine.
NOTE: Use a recommended ramp with a maximum of a 12° incline when loading or unloading into/o truck or trailer.
NOTE: When transporting the machine, use tie down straps to secure the machine to the truck or trailer.
NOTE: When transporting the machine, put the scrub head in the lowered position. Make sure the unit is o before doing so.
WARNING: Do not charge the batteries if the battery charger cable or plug is damaged.
WARNING: When charging batteries, do not smoke near the machine.
NOTE: When storing the machine, always store it indoors in an area where the temperature is between 32oand 104oF (0oand
40oC)
NOTE: Replace any and all safety labels located on the machine if they are missing or become damaged or illegible.

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Scrubbers equipped with Hydralert™ technology have a sensor on the battery pack and an audio alarm
which monitors and communicates low battery water conditions.
1. When batteries are fully charged and the key is turned on, Hydralert™ will check the water level
•If the audio alarm is not activated, there is sucient water in the batteries
•An audio alarm means Hydralert™ senses a low battery water level.
NOTE: Failure to clean the Hydralert™ light pipe will limit Hydralert™’s ability to read the water level
and will reduce battery life.
2. Turn the key o and the ll the batteries with distilled water. (See WET, LEAD ACID BATTERY
MAINTENANCE)
NOTE: Battery packs equipped with Hydralert™ may take more than ½ gallon of water after the
Hydralert™ audio alarm has been activated.
3. After completing the watering procedure, cycle the key to verify the audio alarm is not activated
CLEANING THE HYDRALERT™ SENSOR LIGHT PIPE
WARNING: Battery posts, terminals, and related accessories contain lead and lead compounds,
chemicals known to the State of California to cause cancer and reproductive harm, and during
charging, strong inorganic acid mists containing sulfuric acid are evolved, a chemical known to the
State of California to cause cancer. Wash hands after handling. For more information go to www.
P65Warnings.ca.gov
WARNING: Do not wear jewelry when working near electrical components
WARNING: Batteries emit hydrogen and oxygen gas
- Keep sparks and open ame away. Do not smoke near the machine
- Charge batteries in a well-ventilated area with the battery compartment open
CAUTION: Always wear protective clothing, gloves and goggles when handling and charging
batteries
NOTE: Failure to clean the Hydralert™ light pipe will limit Hydralert™’s ability to read the water level
and will reduce battery life
1. Remove the cap with the black sensor module being careful not to damage the yellow oats. Do not
remove the black sensor module from the cap assembly.
2. Thoroughly wipe the clear light pipe next to the middle yellow oat, paying extra attention to the tip of
the pipe
3. While the cap is still removed, cycle the key and verify the audio alarm activates. Turn the key o
4. Carefully align the cap and press it rmly onto the battery making sure it is fully seated
5. Complete the battery servicing procedures above, cycle the key, and verify the audio alarm is not
activated.
6. The machine is ready for use
An optional item is a Hydralert™ battery water monitoring system. When the battery water falls below an
acceptable level you will hear a audio alarm indicating the batteries need to be watered.

8
MACHINE PREPARATION
UNPACKING & BATTERY INSTALLATION
UNPACKING THE MACHINE
1. Remove the outer packaging.
2. The machine is fastened to the pallet with tie down brackets. Remove the brackets with a phillips tip
in a cordless screwdriver.
3. Using a ramp, push the machine backwards down from the pallet.
4. Keep the pallet and brackets for any future transport needs.
Tie down bracket
BATTERY INSTALLATION
The machine will be supplied with a battery charger and
either two 12V wet or AGM batteries. The batteries
must be housed in the battery compartment beneath
the recovery tank.
To insert batteries:
1. Lift the recovery water tank, opening it as far as it will
go using the side handle.
2. The batteries must be lowered into the compartment
using lifting and transportation means suitable for the
weight and dimensions.
3. They must be connected together in series, to obtain
overall voltage of 24V on the lugs.
NOTE: Fully charge the batteries before using the
machine.
Battery Connection
Diagram
Recovery tank shown in fully open
position
BATTERY TYPE
To power the machine you can use either wet batteries or AGM batteries. Other types must not be used.
The maximum dimensions and the weight are:
Width: 12 7/8 in (327 mm)
Length: 7 1/8 in (181 mm)
Height: 10 7/8 in (276 mm)
Weight: 82 lb (37 kg)
NOTE: The on-board charger has been programmed to work with the batteries that Tornado provides. Using
other battery types not specied for the units by Tornado may impair performance of the unit and will
aect the life of the batteries.
NOTE: Your charger must be set according to the type of battery you install. Read charging section of
manual for further instructions on how to set your charger correctly for your battery type.
MACHINE PREPARATION
BATTERY POWER LEVEL INDICATORS
The battery power level gage is located on the upper control panel. The gage has a series of LEDs to
indicate the amount of power left in the batteries. When the batteries have a full charge, all LEDs are lit.
As the batteries are discharged, the LEDs will begin to go out from right to left. To maximize the life of the
batteries, do not allow the LEDs to go beyond the discharge level as described below.
To maximize the life of the batteries, only recharge the batteries when the machine is operated for a total
of 30 minutes or more and always recharge the batteries immediately after usage when LEDs are indicating
charging is required as described below.

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BATTERY POWER LEVEL INDICATOR - TRACTION DRIVE MODELS
The battery power level gauge is located on the upper control panel. The gauge has red, yellow and green
LEDs to indicate the amount of power left in the batteries.
On lead acid battery-equipped units, when the discharge level reaches the rst red LED, it is a good time
to nish your scrubbing application and recharge the unit. If you do choose to continue scrubbing, when
the last red LED begins to ash, the unit will shut down the brush motor but leave the vacuum and traction
drive operational to perform nal water recovery and transport back to storage. This function not only
serves as an indicator that your battery level has reached a point where recharging is required, but also
protects the batteries from being fully discharged.
AGM battery-equipped units should not be used after the last yellow LED goes out leaving only red LEDs.
Using the unit beyond this point can reduce the life of the batteries.
NOTE: The traction drive battery power level gauge also displays fault codes. The LEDs will ash specic
fault codes if a fault is detected. See Troubleshooting section for LED fault codes.
BATTERY POWER LEVEL INDICATOR - PAD/BRUSH ASSIST MODELS
The battery power level gauge is located on the upper control panel. The gauge has a series of yellow LEDs
to indicate the amount of power left in the batteries. When batteries are fully charged, all LEDs are lit. As
the batteries discharge, the LEDs will begin to go out from right to left.
On lead acid battery-equipped units, when the discharge level reaches the last, lit LED (2nd in from left)
it is a good time to nish your scrubbing application and recharge the unit. If you do choose to continue
scrubbing, when last LED begins to ash, the unit will shut down the brush motor but leave the vacuum
operational to perform nal water recovery. This function not only serves as an indicator that your battery
level has reached a point where recharging is required, but also protects the batteries from being fully
discharged.
AGM battery-equipped units should not be used after there are only two LEDs lit. Using the unit beyond
this point can reduce the life of the batteries.
MACHINE PREPARATION
USING YOUR ON-BOARD CHARGER
CHARGING THE BATTERIES WITH AN ON-BOARD CHARGER
Before using your unit for the rst time, fully charge your batteries.
1. These units are equipped with an on-board charger.
2. The on-board charger is equipped with a 9 foot long cord that can be plugged directly into a 120V outlet.
3. The cord wrap on the unit has a quick-release hook. The lower hook allows the user to slip the cord o
and then the cord can be lifted o the upper hook, all without having to unravel the entire cord.
Battery Level Indicator -
Traction Drive Models
Recharge AGM
batteries
Recharge lead
acid batteries
Battery Level Indicator -
Pad/Brush Assist Models
Recharge AGM
batteries
Recharge lead
acid batteries

10
The on-board charger has charging indication LEDs - the red LED means it has just started the charging
cycle, the yellow LED indicates that it has reached the second phase of charging and green LED means the
unit is fully charged.
Charging indication LEDs
Red indicates charge cycle has just begun
Yellow indicates charge cycle is in the second phase
Green indicates charge cycle is complete
After charging is complete, wrap the cord of your on-board charger securely to ensure the cord is not
damaged.
MACHINE PREPARATION
SETTING THE DIP SWITCHES ON YOUR ON-BOARD CHARGER FOR YOUR BATTERY TYPE
Use small screw driver to
lift label o charger
BATTERY
PART NUMBER
DIP SWITCHES
(TOP TO BOTTOM)
BAT TERY
DESCRIPTION
851307 ON
(R)
OFF
(L)
OFF
(L)
ON
(R)
TROJAN 155AH
LEAD ACID
851306 ON
(R)
ON
(R)
OFF
(L)
ON
(R)
TROJAN 130AH
LEAD ACID
40005 ON
(R)
OFF
(L)
OFF
(L)
OFF
(L)
FULL RIVER 140AH
AGM
40004 ON
(R)
ON
(R)
OFF
(L)
OFF
(L)
FULL RIVER 105AH
AGM
The on-board charger is able to charge wet, lead acid or maintenance-free AGM
batteries. As your unit leaves the factory, the charger is set up to match the type of
battery chosen in the original machine order. Should you choose to change from the
original battery type, the charger can be changed by re-setting the dip switches.
NOTE: The on-board charger has been programmed to work with the batteries that
Tornado provides. Using other battery types not specied for the unit by Tornado may
impair performance of the unit and will aect the life of the batteries.
To access the dip switches, use a small screw driver to lift the corner of the label on the
on-board charger and peel back partially to reveal them. Set the dip switches as shown
below for the specic battery type being used in your machine.
Quick release hook
3
On-board charger
1
On-board charger cord wrap
2

11
MACHINE PREPARATION
SOLUTION TANK
Sight gage hose released from press tting
Solution level indicators
To prepare the machine for cleaning, the unit must be lled with cleaning solution.
1.Water and cleaning detergent can be added to the unit’s rear hose ll port located to the left of the control
panel.
2. There is also a front ll port that is able to accept hose or bucket lling.
Liquid detergent should be added to the tank in the concentration and manner specied by the
manufacturer for an eleven (11) gallon solution tank. The formation of excess foam could damage the
vacuum motor, so be sure to use only the correct amount of detergent. Water temperature should not
exceed 120°F (50°C).
3. It is easy to gage the solution level by watching the fog-free solution sight gage at the rear of the machine.
Additionally, marks on the tank provide solution level indicators as a guide.
4. The bottom of the front ll port is also a full level indicator. Once you are able to see water at the base of
the opening, you have reached the full level.
5. The sight gage hose performs double-duty as the solution drain hose as well. You simply slide the hose
o the press tting and lower the hose to a drain or mop sink.
Rear hose ll port
1
Sight gage hose
3
Front ll port
2
4

12
MACHINE PREPARATION
ATTACHING A CLEANING PAD TO YOUR PAD DRIVER - DISK HEAD
If using a oor pad with your pad driver:
1. Place your pad driver(s) on a work surface and remove the center lock tting from the pad driver. To do
so on the 20 PD and 20TD, unscrew the center lock in a counter-clockwise motion. To do so on the 24 TD,
squeeze the center lock wires inward and lift the center lock o the pads.
2. Connect the cleaning pad to the disk pad driver by centering it on the driver.
3. For the 20 PD and the 20 TD, screw on the center lock tting, making sure that the center lock has
compressed the pad and is snug. For the 24TD, Squeeze center lock wires inward and press center lock
down, tab side rst, compressing the pad and then release the wires so that they lock in place holding the
pad. Repeat for the other pad driver.
NOTE: The pad drivers are tufted pad drivers. Do not use a pad driver on the oor without a pad in place.
This will cause damage to your oor.
Disconnect center lock tting & lay next to
the pad driver
20 PD &TD
Center pad on pad driver
20 PD &TD
Screw on center lock tting
20 PD &TD
MACHINE PREPARATION
ATTACHING YOUR PAD DRIVER OR BRUSH TO THE SCRUBBER - DISK HEAD
The pad driver(s) or brush(es) are attached by using the automatic on/o system. This valuable ingenuity
removes the need for operators to kneel or strain to attach the pad driver or brush.
First, start by placing the pad driver or brush on the oor in front of the scrubber.
1. Turn the unit on using the power key switch.
2. Push or drive it into position so that the unit’s scrub head is centered over the pad driver(s) or brush(es).
3. Utilize the foot pedal to lower the scrub deck down onto the pad driver or brush by depressing the pedal
while shifting it to the right. Once clear of the lower notch, lifting your foot will lower the scrub deck. Make
sure that the shroud completely covers the pad driver(s) or brush(es) in the lowered position. Should
the shroud be resting on a portion of the pad driver or brush, the head isn’t centered and will not attach
properly.
4. The operation is completed by quickly pulsing the activation trigger. This will “click on”the pad driver(s)
or brush(es). If the pad driver(s) or brush(es) do not quickly engage, do not continue pressing the activation
trigger. Realign the scrub deck and try the procedure again. When you have the scrub deck aligned
properly, you should see a noticeable drop of the scrub deck when lowered and the bristle skirt on the
shroud should almost be touching the oor.
Close up showing center lock tab & wires
wires
tab
24 TD
Squeeze center lock wires inward, press
down onto pad & release wires
24 TD
Disconnect center lock tting & lay next
to the pad driver
24 TD
Center pad on pad driver
24 TD 1
2 3

13
MACHINE PREPARATION
ATTACHING YOUR PAD - ORBITAL HEAD
ATTACHING A PAD TO YOUR ORBITAL PAD DRIVER
The orbital unit can be used for daily cleaning; however it specializes in chemical-free nish removal for
low-cost nish maintenance programs. The following directions show how to prepare the machine for both
applications.
For cleaning, the orbital unit is t with a rectangular, 20 in (508 mm) x 14 in (356 mm) pad. The head comes
standard with a rectangular pad drive plate with a Mighty-Lok® connection system.
1. To attach the pad, align the front corners of the pad to the front corners of the orbital drive plate and press
to attach.
2. Use the foot pedal to lower the scrub deck down onto the pad ensuring alignment from front-to-back and
side-to-side.
3. When the head is properly set onto the pad, you are ready for cleaning.
For chemical-free nish removal, it requires the addition of a specialized surface preparation pad. The
application still requires the attachment of a traditional cleaning pad rst. This pad acts as a “backer pad”
which compensates for low and high spots in the oor.
4. Align the Velcro pad retainer along one length of the red, backer pad and press down. This will leave a 2”
gap along one side of the backer pad. Then place the surface prep pad on top of the pad retainer, centering
it from front-to-back & side-to-side with the red pad. The 2” gap left by the pad retainer needs to be
at the front of the machine so that water can fully saturate the pad. Align your pad assembly with all
corners of the pad driver and press upward. The red backer pad should be in closest contact with the pad
driver.
5. Finish the operation by using the foot pedal to lower the scrub deck down onto the surface preparation
pad, once again ensuring alignment from front-to-back and side-to-side. When the head is properly set
onto the pad, you are ready for your nish maintenance program.
Proper alignment of
pad
5
Red backer pad &
Velcro pad retainer
(black) alignment
shown above with
surface prep pad
(brown) pulled
away
4
Proper alignment of pad
3
Lower the scrub head using the foot pedal
2
Align the front corners of the pad and
press to adhere
1
Turn unit on using key switch Position scrub head over pad driver(s)
or brush(es) Lower the scrub head using the foot pedal Quickly pulse the activation trigger
1 2 3 4

14
MACHINE PREPARATION
CONNECTING THE SQUEEGEE AND ADJUSTING WHEEL HEIGHT
Prior to shipping from the factory, the squeegee assembly is removed from the unit. To connect your
squeegee assembly to the machine:
1. Align the squeegee assembly retention slots with the easy-grip knobs then tighten until secure.
2. Attach the recovery hose to the squeegee assembly neck. Make sure to route the loop hose trap between
the squeegee assembly neck and left easy-grip knob.
1. The squeegee blade assembly height is factory set at the optimum water recovery position with the
squeegee wheels being approximately 1/32 inch (1 mm) o the ground allowing the recovery blade to
deect as shown below.
2. If for some reason your squeegee blade height must be adjusted, it is done so by turning the left thumb
screw located on the squeegee frame assembly clockwise to raise the left squeegee wheel and counter-
clockwise to lower the wheel. The same is true for the right thumb screw/squeegee wheel.
Thumb screw to raise and lower squeegee
assembly wheels
4
Close up of squeegee assembly and blade
deection
Proper recovery
blade deection
Slight clearance
o of oor
No clearance
o of oor
3
After aligning assembly, tighten the easy-grip
knobs and attach the
recovery hose.
*Arrows indicate proper hose routing
2
Positioning the squeegee assembly to mount
onto the squeegee frame
1

15
MACHINE OPERATION
OPERATIONAL CONTROLS
TURNING THE UNIT ON/OFF
The machine is powered on through a key switch on the upper control
panel. Turn the key to the ON position. You will see the battery meter
on the left side of the upper control panel light up to show the battery
charge level.
The key switch is a proven way to eliminate unwanted operation. Simply
remove the key and safely store it away when you have completed
scrubbing.
Transaxle drive unit key switch shown
above
SETTING DESIRED SOLUTION FLOW RATE
The next step is to set the unit to the desired solution ow. This control
feature is located at the lower rear of the machine and can be adjusted
from low to high ow spanning a range of 0 to 0.5 gallons (1.9 L) per
minute.
Solution ow adjustment knob
On-board“1, 2, 3-Step” operation guide
Once the machine is powered on and the
solution ow is set, it takes three simple steps
to operate the machine: lower the scrub
deck, lower the squeegee and engage the
activation trigger. These steps are visually
shown on the lower control panel of the
unit’s “1, 2, 3-Step” on-board operation
guide. Following are the detail steps of
how scrubbing and recovery functions are
activated.
LOWERING THE SCRUB DECK
The scrub deck is lowered using the foot pedal at the rear of the unit.
1. Place your foot on the pedal and depress the lever while shifting it to the right. Once clear of the lower
notch, lifting your foot will lower the scrub deck into the operating position.
2. The unit has two down pressure settings. The disk unit has settings of 60 and 90 lb (27 and 40 kg) and the
orbital unit has settings of 75 and 100 lb (34 and 45 kg). When the unit is set into operating position with
the foot pedal, it is in the lower down pressure position. This position is typically used for daily cleaning of
normal soils. However, should you have tough soils or want to perform chemical-free nish removal, engage
the higher down pressure setting by lifting the foot pedal lever to the upper notch position. To disengage
high down pressure, simply lift and shift the lever to the right and lower into normal operating position.
3. The disk scrub head is equipped with a self-adjusting shroud with bristle skirt that virtually eliminates
overspray and increases ease of use.

16
Lowering the squeegee assembly
ACTIVATING THE SCRUBBER
1. To begin scrubbing, engage the handle trigger. The trigger activates solution ow, the brush motor and
traction drive, if equipped. This unique, ergonomic design accommodates dierent operator heights by
allowing the user to activate the trigger from any position on the handle.
2. The speed control and reverse switch on the traction drive models are purposely located so that the
operator doesn’t have to let go of the machine with either hand to perform the function. Speed control is
easily thumb adjusted and the reverse can be depressed with your ngers on the back side of the control
housing.
3. This one-handed reverse feature allows the operator to lift the squeegee with the other hand – a small
element with big rewards when in tight spaces.
LOWERING THE SQUEEGEE
To lower the squeegee, lift the squeegee lever and shift it left to clear
the notch. Once clear, lower the squeegee into the recovery position. In
doing so, the unit’s vacuum motor will activate.
TRANSPORT MODE
The scrub deck and squeegee must be in the raised position for transport.
1. The scrub deck is raised into transport position by placing your foot on the foot pad and depressing the
lever until it clears the lower notch. Once clear, shift the lever to the left and place it into the lower notch.
2. To raise the squeegee, lift the squeegee lever high enough to clear the notch, shift it to the right and
lower it into the resting position. On traction drive models, the vacuum fan will continue to run for 10
seconds in order to evacuate the recovery hose. On pad/brush assist models, the vacuum fan will shut o
immediately.
Reverse switch is easily reached with
ngertip
3
Speed control adjustment
2
Activating the handle trigger
1
Self-adjusting head shroud with bristle
skirt
3
Locking in high down pressure
setting by lifting foot lever
2
Lowering scrub head using foot pedal
1

17
Squeegee assembly in transport/storage
position
2
Scrub deck in transport/storage position
1

18
MAINTENANCE
SCHEDULE FOR SERVICE
MAINTENANCE DAILY WEEKLY MONTHLY
EVERY SIX
MONTHS 100 HOURS 200 HOURS
Clean squeegee assembly. Check blades for wear or
damage. Check if adjustment needed to squeegee
height X
Clean out recovery tank inside and out and oat shut
o assembly. Check both for damage. Leave recovery
tank open during storage X
Clean pad / brush and check for wear or chemical
build up X
Check handles, knobs and switches for damage X
Charge batteries (if machine used longer than 30
minutes) X
Check hoses for wear, blockages or damage X
Clean outside of solution tank and clean inline
solution lter. Check both for damage X
Check wet battery water level and add distilled water
if necessary X
Check splash guard around scrub head for damage
(disk models only) X
Thoroughly clean entire machine X
Check linkages and connectors for wear / damage X
Check all bearings and wheels for noise or loose
hardware X
Check recovery tank lid gasket for wear or damage X
Check batteries for cracks, corrosion or signs of
overheating X
Check belt for excessive wear (S-24XM only) X
Check all screws and nuts. Tighten if necessary X
Inspect isolators (orbital units only) X
Check for loose wires or connections X
Clean batteries and terminals X
Blow out dust in motors X
Clean pivot points on squeegee and scrub deck
linkages X
NOTE: With regular maintenance, the lifetime of your machine and its safe operation are extended and ensured. Scheduled
maintenance should be performed by qualied personnel or by an authorized service center.
WARNING: These maintenance procedures must be performed with the machine o and the batteries disconnected.
Make sure to read all safety instructions prior to performing maintenance.

19
MAINTENANCE
END OF SHIFT
Once you’ve completed your daily scrubbing, project work or nish maintenance, proper end of use
maintenance can greatly extend the machine’s life, improve performance, enhance sanitization and lower
the machine’s long-term operational costs. There are four key areas we will review and demonstrate:
the recovery tank, squeegee assembly, battery maintenance and charging, ending with pad and brush
maintenance.
RECOVERY TANK
At the end of the job, the recovery tank needs to be emptied and rinsed out. To drain the recovery tank,
utilize the recovery tank drain hose at the rear of the machine.
1. The drain hose has a press-t cap that is removed for the draining process.
2. The hose is also equipped with a restriction collar that can be bent or squeezed to reduce splashing and
spraying during the operation.
3. As the recovery tank drains, lift the recovery tank lid to the fully open position. When almost empty,
begin to rinse out the sediment from the bottom of the tank with a clean water hose. After the tank is
thoroughly rinsed and drained, leave the tank lid open to dry.
4. This is a great time to inspect and clean the vacuum mesh lter screen and ball oat system. This can be
removed for cleaning by unscrewing the lter screen and rinsing it with a hose or faucet.
The full access tank is designed for periodic deep cleaning and sanitizing. Once thoroughly rinsed, the
operator can use a cleaner and sanitizer with a cloth or sponge to completely sanitize the recovery tank.
This reduces the mold and mildew that can form over time.
SQUEEGEE ASSEMBLY
The squeegee system is crucial to high-performance cleaning. It is the last thing that touches the oor so
proper maintenance is important for making it perform at its peak.
1. Remove the squeegee assembly from the machine by loosening the easy-grip knobs and detaching the
recovery hose at the back of the machine. Take the squeegee to a drain or utility sink and thoroughly rinse
the underside of the squeegee frame and squeegee blades. Make sure that all particles and debris have
been removed. Inspect the neck of the squeegee assembly for debris. If found, clear the debris and rinse it
out.
2. Inspect the front and rear squeegee blades. If the blade edges are not clearly dened or worn halfway
through the thickness of the blade, then it is time for replacement or to be ipped to another edge. The
squeegee blades have four usable edges.
3. Blade exchange is completely tool-free for fast, easy maintenance. To remove the rear blade, release the
over-center latch and slide the squeegee retainer o the hook on the other side.
4. The blade can be removed for replacement or ipped length wise or top to bottom to utilize another
blade edge.
To re-attach the blade, align the blade holes with the squeegee frame guides from one end to the other.
Slide the retainer over the hook and press the retainer latch into position on the far end following the
guides. Engage the latch to nish the operation.
Vacuum mesh lter screen and ball oat
system
4
Raising recovery tank lid to fully open
position
3
Drain hose has a press-t cap and
restriction collar
2
Recovery tank drain hose
1

20
The front-blade exchange is completed in a similar fashion to the rear blade by removing the front blade
retainer, attaching a new blade using the guides and re-engaging the squeegee retainer.
When squeegee assembly and blade maintenance is complete, re-attach the squeegee assembly by aligning
the assembly, tightening the easy grip knobs and re-attaching the hose.
BATTERY MAINTENANCE
Based on research and experience, batteries are the number one nuisance issue and drive a high cost of
ownership if not properly maintained. With the unit you can select from two types of batteries: wet, lead
acid or sealed, maintenance-free AGM.
WET, LEAD ACID BATTERY MAINTENANCE
Wet batteries, by denition, need water to store energy and protect the internal lead plates. According to
the supplier, here are important things to remember for a proper battery watering process:
1. Do not let the plates get exposed to air. This will corrode the plates
2. Do not ll the water level to the cap. This causes the battery to overow acid, consequently losing
capacity and causing a corrosive mess
3. Use distilled or deionized water only
STEP BY STEP BATTERY WATERING PROCEDURE
Battery watering frequency depends upon usage, but the best practice would be to check weekly. Batteries
should be fully charged prior to watering. Refer to the Charging segment of this manual for charging
instructions. Once charging is completed, open the vent caps and look inside the ll wells. Add distilled
water until the electrolyte level is approximately 1/8 in (3.2 mm) below the bottom of the ll well. Clean and
replace the vent caps.
WARNING: Fire or explosion hazard. Batteries emit Hydrogen gas. Keep sparks and open ame away.
Keep battery compartment open when charging.
For safety, when cleaning batteries, wear protective gloves and eye protection. Avoid
contact with battery acid.
CAUTION:
For safety, when cleaning batteries, wear protective gloves and eye protection. Avoid
contact with battery acid.
CAUTION:
PAD DRIVER AND BRUSH MAINTENANCE
This portion of maintenance is simple and quick, but key to keeping your unit performing at peak levels.
Remove the pad driver or brush to check for wear.
1. For the orbital unit, simply pull o the pad taking care to follow proper safety precautions as indicated on
your chemical product label in regards to coming in contact with solution.
2. Remove the pad driver or brush, on the 20 PD and the 20TD, reach under the shroud (from the front of the
unit) and twist the pad driver or brush counter-clockwise. For the 24 TD, twist the right pad driver or brush
counter-clockwise and the left one clockwise.
Remove the blade and either ip to fresh
edge or replace
4
To ip or replace squeegee blades, release
over-center latch
2
Remove squeegee assembly
1
Slide the squeegee retainer o the hook on
the other side
3