BETCO STEALTH DRS24BT Product manual

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STEALTH
STEALTH™
DRS24BT
DRS24BT
24” Automatic Rider
Scrubber
E87032-00
E88065-00
1001 Brown Avenue • Toledo, Ohio 43607-0127
Customer Service: 888-GO-BETCO • Fax: [phone] • Technical Service: 877-856-5954 • www.betco.com
Operator and Parts
Manual

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TABLE OF CONTENTS
RECEIVING THE MACHINE........................................3 - 4
GENERAL SAFETY REGULATIONS................................. 5
MACHINE PREPARATION..........................................6 - 9
OPERATION ..........................................................10 - 12
SHUTTING DOWN THE MACHINE................................ 13
DAILY MAINTENANCE.................................................. 14
WEEKLY MAINTENANCE.............................................. 15
TROUBLESHOOTING ............................................16 - 18
BRUSH SELECTION ..................................................... 19
PARTS DIAGRAMS AND LISTINGS.......................20 - 49
ELECTRICAL SYSTEM.................................................. 50
PROGRAMMING CONSOLE ......................................... 50
ALARM AND WARNING TABLE.................................... 51
PROGRAMMING THE TRACTION CARD ...................... 51
PARAMETERS.............................................................. 52
POTENTIOMETER CALIBRATION ................................. 53
ELECTRIC PLANT TEST ............................................... 53
SPEED CONTROL PEDAL ADJUSTMENT ..................... 54
STEERING AND TRACTION ADJUSTMENT .................. 55
SPEED REDUCTION SWITCH ADJUSTMENT ............... 55
BRUSH DECK ADJUSTMENT ....................................... 56
BRAKE ADJUSTMENT.................................................. 56
SQUEEGEE ADJUSTMENT ........................................... 57
SQUEEGEE LIFT ADJUSTMENT ............................58 - 59
VACUUM TEST............................................................. 60
TEST WATERING SYSTEM........................................... 60
CHECK LIST ................................................................. 61
MAINTENANCE SCHEDULE.......................................... 62
WEAR ITEMS ............................................................... 63
WARRANTY ................................................................. 64

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On receipt of the machine, you must immediately make sure you have received all the material indicated in the accompanying
documentation and that the machine has not been damaged during shipment. Any damage noted should be reported to the
carrier immediately and our customer service department should be notified. Following this procedure without delay is the
only way to obtain the missing material and compensation for the damage.
INTRODUCTION
This floor automatic scrubber uses the mechanical action of a rotat-
ing brush and the chemical action of a cleaner-water solution to clean
hard floors. As it moves forward, it also collects the dirt removed
and the cleaning solution leaving the floor dry.
The machine must be used only for this purpose. Even the best
machine can only work well if used correctly and maintained. You
must read these instructions carefully, and then read them again
whenever a problem arises during operation of the machine. Please
contact our technical service department or your dealers if you have
any questions about the machine.
RECEIVING THE MACHINE
Serial # Plate
SYMBOLS USED ON THE MACHINE
Symbol representing raising and lowering of
the brush deck
Symbol representing raising and lowering of
the squeegee assembly
Battery charge symbol
Forwards-reverse drive selector symbol
Horn button symbol
ON/OFF switch (key switch) symbol
Water flow control symbol
Indicates the maximum temperature of the
detergent solution

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Working width In (mm) 24 (610)
Squeegee width In (mm) 33 (850)
Productivity ft2/h (m2/h) 39,400 (3660)
Brushes in (mm) 24.0 (610)
Brush RPM RPM 140
Brush pressure lb (Kg) 77 (35)
Brush motor HP (V / W) 0.75 (560)
Drive motor HP (V / W) 0.54 (400)
Drive wheels in (mm) 9.8 (250)
Forward speed mph (km/h) 3.7 (6)
Working grade with full load % 10
Vacuum motor HP (V / W) 0.74 (550)
Vacuum motor suction inches of water (mbar) 75.6 (188)
Solution tank capacity Gal (l) 20 (75)
Recovery tank capacity Gal (l) 25 (95)
Weight of machine (excluding batteries) lb (Kg) 507 (230)
Battery weight lb (Kg) 286.6 (130)
Batteries Ah 235 (4)
Charger (power supply) V / A 24
Battery compartment dimensions (Length / Height / Width) in x in x in 15.4 x 20.9 x 13.8
(mm/mm/mm) (350 /305 /360)
Machine length in (mm) 53.1 (1350)
Machine height in (mm) 54.1 (1375)
Machine width (without squeegee) in (mm) 25.4 (645)
TECHNICAL DESCRIPTION Measurement Unit Stealth™DRS24BT

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The rules must be followed to avoid injury to the operator or damage to the machine.
• Read the machine labels carefully. They must never be covered and must be replaced immediately if damaged.
• The machine must be used by trained and authorized personnel.
• The machine is not suitable for cleaning carpet.
• Do not mix different types of detergent to avoid the production of harmful gases.
• Do not rest containers of liquid on the machine.
• The machine must be stored at a temperature of between -10°F and +130°F. Do not store outside in damp conditions.
• Working conditions: room temperature between 33°F and 100°F with relative humidity of between 30 and 95%.
• Do not use in an explosive atmosphere.
• Do not use the machine as a means of transportation.
• Do not use acid solutions in the machine.
• Do not operate the brushes with the machine stationary to avoid damaging the floor.
• Do not collect flammable liquids.
• Do not use the machine to pick up hazardous dust or powder.
• In the event of fire, use a powder type extinguisher. Do not use water.
• Do not use the machine on surfaces with a gradient greater than that indicated on the serial tag.
• When the machine is parked, remove the key and apply the parking brake.
• If you experience poor operation, perform standard maintenance. If operational problems remain, contact a BETCO techni-
cal service center.
• If parts need replacing, ask for ORIGINAL spare parts from an authorized BETCO dealer only.
• Before performing any maintenance on the machine, turn off the machine and disconnect the battery connector.
• Reconnect all electrical connections after performing any maintenance operations.
• Do not remove guards which can only be removed by using tools.
• Do not wash the machine with direct or pressurized water jets or corrosive substances.
• Every 200 hours of operation, have the machine maintained by a BETCO service center.
• Before using the machine, make sure all doors and covers are in position as described in this operator’s manual.
• Before lifting the recovery tank, empty the tank.
• Use only the brushes provided with the machine or those specified in the operator’s manual.
• The machine must be disconnected from the power supply before removing the batteries.
• Before disposing the machine, remove the batteries.
• The machine should only be used by trained professionals.
GENERAL SAFETY REGULATIONS

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1. HANDLING THE PACKAGED MACHINE
The machine is palletized so that it may be moved with forklift trucks.
The pallets should not be double stacked.
The total weight 775 pounds.
The dimensions of the package are:
A : 61 inches
B : 40 inches
C : 69 inches
2. HOW TO UNPACK THE MACHINE
A. Remove the outer box.
B. The machine is fastened to the base board with wedges to block the wheels.
C. Remove the wedges.
D. Using a ramp, push the machine backwards off the pallet.
E. Keep the pallet for possible shipment in the future.
3. INSTALLING THE BATTERIES IN THE MACHINE
The batteries must be placed in the battery compartment under the operator's
seat and the recovery tank.
MACHINE PREPARATION

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4. CONNECTING THE BATTERY CONNECTOR
A. Connect the battery connector to the machine connector.
B. Place the connectors in the battery compartment.
WARNING: This must be done by qualified personnel only. Incor-
rect or faulty connection of the wires to the connector could
cause serious injury to people and damage to the machine.
5. CONNECTING THE BATTERY CHARGER
A. Make sure there is no water in the recovery tank.
B. Open the latch on the front of the solution tank.
C. Lift the recovery tank as far as the support will allow.
D. Disconnect the machine connector from the battery connector.
E. Connect the battery charger connector to the battery connector.
WARNING: This must be done by qualified personnel only. Incor-
rect or faulty connection of the wires to the connector could
cause serious injury to people and damage to the machine.
WARNING: To avoid permanent damage to the batteries, it is vital
to avoid running the batteries to a complete discharge. Recharge
a few minutes after the "batteries discharged" signal flashes.
WARNING: Never leave the batteries completely discharged, even
if the machine is not used. During recharging, keep the seat sup-
port raised. Every 20 charges check the electrolyte level and if
necessary add distilled water.
WARNING: All installation and maintenance operations must be
performed by trained personnel. Danger of gaseous emissions
and leaks of corrosive liquids. Risk of fire: Keep away from open
flames.
6. CONNECTING THE BATTERY CHARGER
WARNING: Never charge GEL batteries with the battery charger that shipped
with this machine.
To avoid permanent damage to the batteries, do not completely discharge the
batteries. Recharge immediately after the "batteries discharge" signal flashes.
WARNING: Never leave the batteries discharged, even if the
machine is not used. During recharging, keep the seat raised.
Every 20 charges check the electrolyte level and if necessary add
distilled water. Batteries reach their nominal capacity after ten
complete charging/discharging cycles.
MACHINE PREPARATION

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7. BATTERY CHARGE INDICATOR
The battery charge indicator is digital with four fixed states and one flashing
state. The numbers displayed indicate the approximate charge status.
4 = maximum charge, 3 = 3/4 charged, 2 = 1/2 charged, 1 = 1/4 charged,
STOP = batteries completely discharged (flashing)
WARNING: A few seconds after the flashing "0" appears the brush
motor stops automatically. The remaining charge is sufficient to
finish drying the floor before recharging.
8. INSTALLING THE SQUEEGEE ASSEMBLY
For packaging reasons, the squeegee is supplied detached from the machine
and must be mounted as shown in the figure. First insert the right pin of the
squeegee (1) into the right slot of the squeegee mount, and then insert the left
pin into the left slot, making sure the tabs are positioned correctly and the right
pin is in the squeegee adjuster (2). To facilitate this operation, the squeegee ad-
juster must be loosened. Then tighten the squeegee adjuster. Lastly, connect
the squeegee vacuum hose to the squeegee shoe adapter (3).
9. SQUEEGEE ADJUSTMENT
While the machine is moving forward, the rear squeegee blade bends slightly
backwards uniformly about 0.2 inches along the entire length.
The squeegee blade has four usable edges. To increase the bending of the
center of the squeegee blade turn the squeegee adjuster counterclockwise
(1). To increase the bending of the squeegee blade at the outside edges of the
squeegee, turn the squeegee adjuster (1) clockwise. After adjustment, tighten
the jam nut.
The height of the squeegee must be adjusted in relation to the wear of the
squeegee blades. Remove one or more of the M10x30 UNI6593 washers from
both the squeegee wheels.
NOTE: The right and left wheels must be adjusted to the same height from
the ground to ensure that the squeegee works parallel to the floor.
MACHINE PREPARATION

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10. MOUNTING THE PAD DRIVER
A. Connect the battery connector.
B. Turn the key to the ON position.
C. Use the switch to raise the brush deck.
D. Turn the key to the OFF position and remove it from the key switch.
WARNING: Mounting the brush with the power on could lead to
injury.
E. With the brush deck raised, place the pad driver in the shroud of the brush
deck. Turn the machine on and lower the brush deck. Turn on the brush
motor and slightly depress the speed control speed pedal. The brush motor
will begin to rotate and the pad driver with automatically attach to the brush
motor.
WARNING: This must be done wearing gloves to protect the hands.
11. THE SOLUTION TANK AND RECOVERY TANK
Fill the solution tank with clean water no hotter than 120° F (50° C), and then
add liquid detergent at a concentration specified by the manufacturer. To avoid
the formation of excessive foam which would damage the vacuum motor, use
the minimum amount of detergent. Make sure the vacuum unit is lowered and
correctly positioned. Make sure the latches locking the vacuum unit to the ma-
chine are both closed and that the cap on the tank drain hose is closed.
WARNING: Always use low foam detergent. To avoid foam produc-
tion, before starting work add a small amount of defoamer liquid
to the recovery tank. Do not use acids in the pure state.
12. CONNECTING THE DRIVE MOTOR
Remove the center guard; connect the power supply wires to the reduction gear
wires as shown on the sheet provided.
WARNING: This must be done by qualified personnel only. Faulty
connection of the connector wires could cause machine malfunc-
tion.
MACHINE PREPARATION

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1. PREPARING FOR OPERATION
A. Prepare the machine.
B. Sit in the driving position.
C. Check that the parking brake is released.
D. Turn the ON/OFF key a quarter of a turn clockwise. The battery and hour
meter display turns on immediately.
E. Place the squeegee raised/lowered switch (1) in the lowered position. The
vacuum motor will start.
F. Place the brush deck raised/lowered switch (2) in the lowered position until
till the brush deck lowers completely.
G. The brush will not start turning until the speed control pedal is pressed.
H. Place the forward/reverse selector (3) in the forward position. The machine
has two forward speeds indicated by the symbols on the label at the side of
the switch: tortoise=slow forward, hare=fast forward.
I. Open the water flow by raising the water control knob. Water will not flow
until the machine moves forward.
J. Press the speed control pedal. The machine will start moving, the squeegee
will lower and the brush starts to rotate. During the first few feet of work,
check that the amount of cleaning solution dispensed is appropriate and that
the squeegee dries well.
If you encounter problems while working, turn off the key and apply the
emergency brake by pushing the brake pedal down and pulling it toward you
until it latches in place. These actions stop all movement of the machine. To
resume work after resolving the problem turn the key switch on and release the
parking brake pedal.
OPERATION

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OPERATION
The machine will not move unless the operator is seated correctly in the
seat.
When the batteries are fully discharged, a flashing red LED appears on the
display and the brush motor turns off automatically. You must recharge the bat-
teries as soon as possible.
2. OVER FULL DEVICE
The machine has a float system activates when the recovery tank is full.
This system closes the vacuum hose. You must empty the recovery tank.

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3. DRIVE AND BRAKES
This machine is equipped with an electronically controlled drive. To move the
machine, you must turn the key (1) then move the switch lever (2) forward
(forward movement) or backward (reverse movement). The machine starts
to move when the speed control pedal is depressed. Use the pedal to regulate
speed.
The machine has an electronic braking system. Under normal conditions, re-
move your foot from the speed control pedal to brake. If the service brake does
not work correctly or in case of emergencies, depress the mechanical pedal
brake by pushing it down and pulling it towards you until it latches in place.
4. HORN AND FLASHING LIGHT
The machine has a safety horn. To operate it, press the button shown in the
figure (1).
The machine has a flashing light which comes on automatically when the key is
turned a quarter of a turn into the ON position.
OPERATION

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1. After work is complete and before performing maintenance, perform the fol-
lowing operations:
2. Turn off the water control knob (1) by pressing down on the knob
3. Place the brush deck raise/lower switch in the raised position until the brush
deck is completely raised.
4. Place the squeegee raised/lowered switch (1) in a central position so that the
vacuum motor continues to operate to empty the vacuum hose for about 20
seconds, and then place it in the fully raised position.
5. Drain the water.
6. Turn the ON/OFF key switch a quarter of a turn counterclockwise (2).
7. Detach the drainage hose from the clip, unscrew the cap and empty the
recovery tank. You should keep the hose higher than the level of water in the
tank with one hand and unscrew and remove the cap with the other. Then
lower the hose slowly.
WARNING: This must be done wearing gloves to protect from con-
tact with dangerous solutions.
8. The squeegee must be raised when the machine is not in operation to avoid
distorting the squeegee blades.
9. Remove the brushes and clean them with water.
WARNING: This must be done wearing gloves to protect from con-
tact with dangerous solutions.
SHUTTING DOWN THE MACHINE

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1. CLEANING THE FILTER AND RECOVERY TANK
A. Empty the tank through the drain hose.
B. Rinse the tank and clean the hose cap.
C. Replace the cap on the drain hose.
D. Replace the drain hose and cap following the same process in reverse.
WARNING: This must be done wearing gloves to protect from con-
tact with dangerous solutions.
With the solution tank empty:
A. Open the water control knob.
B. Unscrew the filter and rinse thoroughly.
C. Remove the cap from the solution tank fill hole.
D. Clean the inside of the solution tank with water.
E. Remove the filter cartridge and clean.
F. Replace the assembly following the same process in reverse.
G. Release the latches at the side of the vacuum unit cover.
H. Remove the float system guard by rotating it counterclockwise and pulling it
toward you.
I. Remove the filter from the filter ring.
J. Clean the walls and bottom of the filter with water. Wash all the parts thor-
oughly.
K. Replace the assembly following the same process in reverse.
2. CLEANING THE SQUEEGEE
Clean the squeegee with high pressure water. Check the wear of the blades and
if necessary turn them or replace them.
3. REMOVING THE DISK BRUSH
This machine has an automatic brush release system to simplify the work of the
operator. To release the pad driver:
A. Turn the key to the ON position.
B. Raise the brush deck slightly off the floor and depress the speed control
pedal.
C. Press the brush release button.
WARNING: Removing the brush manually could lead to injury.
DAILY MAINTENANCE

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1. REPLACING THE SQUEEGEE BLADES
If the rear squeegee blade is worn and does not dry efficiently, the wiping edge can
be changed as follows:
A. Remove the squeegee from the machine
B. Remove the locking latch
C. Remove the band clamps and squeegee blade
D. Turn the squeegee blade or replace if necessary
E. Replace the assembly following the same process in reverse.
F. Adjust the height of the squeegee shoe to the blade
If the front squeegee blade is worn, the vacuum will not be effective and the machine
will not dry correctly. In this case, replace as follows:
A. Remove the squeegee from the machine
B. Loosen the screws holding the front blade retainer and blade in place
C. Remove the blade and replace it
D. Replace the assembly following the same process in reverse.
2. ADJUSTING AND REPLACING THE BRUSH DECK SPLASHGUARDS
The height of the brush deck splashguards must be adjusted regularly. This must be
done with the brush deck lowered.
A. Loosen the knobs holding the guards (1)
B. Position the guards
C. Tighten the knobs
Please note that the splashguard must touch the floor and be parallel to the floor.
Check the state of wear of the brush deck splashguards regularly. If necessary,
replace as follows:
A. Unscrew the knobs to remove the guards
B. Unscrew the rubber splashguard retainers
C. Remove the splashguards and replace
Replace the assembly following the same process in reverse.
3. CLEANING THE VACUUM HOSE
If suction is inadequate, ensure that the vacuum hose is not blocked. If necessary,
clean with water introduced from the tank end of the hose. Proceed as follows:
1. Detach the vacuum hose from the vacuum coupling
2. Clean with water introduced from the tank end of the hose
3. Replace the assembly following the same process in reverse.
WARNING: This must be done wearing gloves to protect from contact
with dangerous solutions.
WEEKLY MAINTENANCE

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1. INSUFFICIENT WATER ON THE BRUSH
A. Make sure the water control knob is open.
B. Make sure there is water in the solution tank.
C. Water comes out only when the machine moves forward.
D. Clean the solution filter.
E. Check for correct operation of the solenoid valve.
F. Check that a thermal shutoff has not tripped.
2. THE MACHINE DOES NOT CLEAN EFFICIENTLY
A. Check the state of wear of the brush or pad and replace if necessary (the
brush must be replaced when the tufts are about 5/8ths of an inch long).
B. Use a type of brush other than standard to clean floors with particularly stub-
born dirt. Use appropriate brushes for required situations.
3. SQUEEGEE DOES NOT DRY EFFECTIVELY
A. Confirm the squeegee is clean.
B. Adjust the height of the squeegee shoe.
C. Clean the vacuum system.
D. Replace the squeegee blades if worn.
E. Ensure that a thermal shutoff has not tripped.
TROUBLESHOOTING GUIDE

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4. THERE IS NO VACUUM SUCTION
Confirm that the squeegee switch is in the lowered or center position, this low-
ers the squeegee blade.
5. THE MACHINE DOES NOT START
A. The operator must be sitting in the driver's seat.
B. Confirm that the parking brake is off.
C. Check that the key switch is turned on.
D. Ensure that the connector is connected to the batteries.
E. Confirm via the charge indicator that the batteries are charged.
F. Ensure that a thermal shutoff has not been tripped.
6. THE BRUSH MOTOR DOES NOT FUNCTION
A. Make sure the brush deck is lowered.
B. Check on the charge indicator that the batteries are charged.
C. Check that the electrical connector on the brush deck is correctly connected.
WARNING: To avoid damage to the floor, the brush motor operates
only when the machine is moving forward.
7. THE BRUSH DECK CANNOT BE RAISED OR LOWERED
A. Check that a thermal shutoff has not tripped.
TROUBLESHOOTING GUIDE

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8. THE HORN DOES NOT FUNCTION
A. Check that a thermal shutoff has not tripped.
9. EXCESSIVE FOAMING
A. Make sure you are using low foam cleaner. If necessary add a small amount
of defoamer liquid in the recovery tank. Please note that more foam will be
produced when the floor is not excessively dirty. If necessary, use a more
dilute detergent solution.
10. ELECTRICAL FUSES AND THERMAL SHUT OFFS
The machine is equipped with the following electrical safety devices:
- Power fuses in the electrical box to protect from short circuits
- Low current resettable fuses to protect:
• Idle functions
• Solenoid valve and water pump
• Horn
• Drive control system
• Brush deck raising/lowering actuator
• Squeegee raising/lowering actuator
If a resettable fuse trips, turn the key switch to the OFF position (1), wait for a
few seconds, then turn it back to the ON position (2).
If the problem persists, contact an authorized BETCO technical service center.
TROUBLESHOOTING GUIDE

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POLYPROPYLENE BRUSH (PPL)
Used on all types of floors. Good resistance to wear and tear, and hot water (no greater than 140°F (60°C)).
NYLON BRUSH
Used on all types of floors. Excellent resistance to wear and tear and hot water (even over 140°F (60°C)).
ABRASIVE BRUSH
The bristles of this type of brush are coated with highly aggressive abrasives. It is used to clean very dirty floors. To avoid floor
damage work only with the head pressure necessary.
PAD DRIVER
The pad holder is recommended for cleaning smooth surfaces. There are two types of pad holder:
1. The traditional pad holder is fitted with a series of anchor points that allow the abrasive floor pad to be held and dragged
while working
2. The CENTER LOCK type pad holder not only has anchor points, but also a snap-type central locking system made of plastic
that allows the abrasive floor pad to be perfectly centered and held without any risk of it becoming detached.
BRUSH SELECTION

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PARTS DIAGRAM