Minuteman SCV28 Guide

SCV 28/32 RIDER SCRUBBER
OPERATION ￭SERVICE ￭PARTS ￭CARE

This manual is furnished with each new MINUTEMAN SCVTM 28/32. This provides the necessary operating
and preventive maintenance instructions. Operators must read and understand this manual before operating
or servicing this machine.
This machine was designed to give you excellent performance and efficiency. For best results and minimal
cost, please follow the general guidelines below:
• Operate the machine with reasonable care.
• Follow the manufacturers suggested maintenance instructions as provided in this booklet.
• Use original Minuteman supplied parts.
TECHNICAL SPECIFICATIONS
Model SCVTM28/32
Model No. SC280000QP / SC280001QP / SC32000QP / SC320001QP
SC280000CE / SC280001CE / SC320000CE / SC320001CE
Current 65 Amps
Voltage, Batteries 36 volts, 6-6volt
Battery Capacity 370 AH
Sound Level 72 dB
Dimensions (LxWxH) 64” x 31” x 54” (160cm x 78.74cm x 137cm)
Gross Weight 1,495 lbs (678 kg) with batteries
793 lbs (360 kg) without batteries
Working Grade Transport 16% (10°)
Working Grade Cleaning 10% (7°)
Wheel to Floor Pressure 64 PSI Front, 69 PSI Rear
31.00 (SCV 28)
35.00
(
SCV 32
)
2

3

TABLE OF CONTENTS
Operation, Illustration, Spare Parts, and Maintenance
IMPORTANT SAFETY INSTRUCTIONS.........1
FOR SAFETY DURING OPERATION: ........1
FOR SAFETY WHEN SERVICING OR
MAINTAINING MACHINE: ...........................1
INSPECTION....................................................1
ELECTRICAL ...................................................1
BATTERIES .....................................................1
OPERATOR RESPONSIBILITY ......................1
MACHINE COMPONENTS ..............................1
FRONT .............................................................1
MACHINE COMPONENTS ..............................2
REAR................................................................2
MACHINE COMPONENTS ..............................2
DRIVER’S COMPARTMENT ...........................2
CONTROL CONSOLE .................................3
Key switch................................................3
Off-aisle wand switch ...............................3
Headlight switch.......................................3
Main Keyboard.........................................3
Horn button ..............................................3
Directional switch .....................................3
MAIN KEYBOARD .......................................4
FULL FUNCTION MODE.........................4
DOUBLE SCRUB MODE.........................4
VACUUM ONLY MODE...........................4
TRANSPORT MODE ...............................4
INFORMATION BUTTON ........................4
WATER FLOW ADJUSTMENT ...............5
BRUSH PRESSURE ADJUSTMENT ......5
EMPTY SOLUTION TANK INDICATOR..5
RECOVERY TANK FULL INDICATOR ...5
LCD DISPLAYS............................................5
INFORMATION BUTTON ........................5
DIRECTIONAL SWITCH FORWARD......5
DIRECTIONAL SWITCH REVERSE .......5
FULL FUNCTION MODE.........................6
DOUBLE SCRUB MODE.........................6
VACUUM ONLY MODE...........................6
TRANSPORT MODE ...............................6
BRUSH PRESSURE ADJUSTMENT ......6
WATER FLOW ADJUSTMENT ...............6
EMPTY SOLUTION TANK INDICATOR. 6
RECOVERY TANK FULL INDICATOR... 6
LOW BATTERY INDICATOR.................. 7
DIAGNOSTIC CODE............................... 7
FAULT / DIAGNOSTIC CODE ................ 7
OPERATION OF CONTROLS .................... 8
POWER SAVE MODE................................. 8
ACCELERATOR PEDAL ........................ 8
SEAT ....................................................... 8
STEERING WHEEL ................................ 8
MECHANICAL & PARKING BRAKE....... 9
EMERGENCY DISCONNECT BUTTON 9
CIRCUIT BREAKERS ................................. 9
BATTERY COMPARTMENT..................... 10
SCRUB DECK ........................................... 11
CYLINDRICAL....................................... 11
SCRUB DECK....................................... 11
DISC SCRUB DECK ............................. 11
SCRUB DECK INSTALLATION ................ 12
REAR SQUEEGEE ................................... 14
REAR SQUEEGEE COMPONENTS .... 14
REAR SQUEEGEE ADJUSTMENT...... 15
OFF-AISLE WAND................................ 15
OFF-AISLE WAND TOOL..................... 16
THE SCV RIDER ........................................... 17
MACHINE OPERATION............................ 17
AFTER USE: ......................................... 19
MAINTENANCE SCHEDULE.................... 20
LUBRICATING THE MACHINE ............ 20
GENERAL MACHINE
TROUBLESHOOTING .............................. 21
SCV 28/32 FAULT / DIAGNOSTIC CODES . 23
EXPLODED VIEWS....................................... 25
MAIN ASSEMBLY I ................................... 25
MAIN ASSEMBLY II .................................. 27
MAINFRAME ASSEMBLY I....................... 29
MAINFRAME ASSEMBLY II...................... 30
FRONT DRIVE ASSEMBLY...................... 32
STEERING ASSEMBLY............................ 34
LCD HOUSING ASSEMBLY ..................... 36
SOLUTION TANK ASSEMBLY ................. 37
ELECTRICAL PANEL ASSEMBLY ........... 39
CONSOLE ASSEMBLY............................. 40
RECOVERY TANK ASSEMBLY I ............. 41
RECOVERY TANK II................................. 43
DIVERTER ASSEMBLY ............................ 44
BATTERY BOX ASSEMBLY ..................... 45
PUMP ASSEMBLY.................................... 46
REAR AXLE ASSEMBLY .......................... 48
SQUEEGEE MECHANISM ASSEMBLY... 49

REAR SQUEEGEE ASSEMBLY 28” .........50
REAR SQUEEGEE ASSEMBLY 32” .........52
28” CYLINDRICAL SCRUB DECK
ASSEMBLY ................................................54
28” DISC SCRUB DECK ASSEMBLY .......56
32” CYLINDRICAL SCRUB DECK
ASSEMBLY ................................................58
32” DISC SCRUB DECK ASSEMBLY .......60
CYLINDRICAL DECK AND SIDE
SQUEEGEE MOUNTING ..........................62
DISC SCRUBDECK AND SIDE SQUEEGEE
MOUNTING................................................64
28” SIDE SQUEEGEE (RIGHT SIDE) .......66
28” SIDE SQUEEGEE (LEFT SIDE)..........67
32” SIDE SQUEEGEE (RIGHT SIDE) .......68
32” SIDE SQUEEGEE (LEFT SIDE)..........69
OFF AISLE WAND ASSEMBLY ................70
PLUMBING DIAGRAM ..................................72
WIRING DIAGRAMS......................................73
INPUTS TO CONTROLLER ......................74
OUTPUTS FROM CONTROLLER.............75
KEYBOARD WIRING .................................76
MACHINE SCHEMATIC.............................77
2

IMPORTANT SAFETY INSTRUCTIONS
Operators must read and understand this manual before operating or maintaining this machine.
Do not operate this machine in flammable or explosive areas.
This machine is designed solely for scrubbing dirt and dust in an indoor environment. Minuteman does not
recommend using this machine in any other capacity.
The following information below may cause a potential hazard to the operator and equipment. Read this
manual carefully and be aware when these conditions can exist. Take necessary steps to locate all safety
devices on the machine and train the personnel operating the machine. Report any machine damage or
faulty operation immediately. Do not use machine if it is not in proper operating condition.
FOR SAFETY DURING OPERATION:
Keep hands and feet clear of moving parts while machine is in operation.
Make sure all safety devices are in place and operate properly. All covers, doors and latches must be
closed and fastened before use.
During operation, attention should be paid to other persons in the work area and especially if small children
are present.
Electric motors and components can cause an explosion when operated near explosive materials or vapor.
Do not operate this machine near flammable materials such as solvents, thinners, fuels, grain dust, etc.
Store or park this machine on a level surface only, with parking brake engaged. To prevent unauthorized
use, machine should be stored or parked with the key removed.
This machine is designed for level operation only. Do not operate on ramps or inclines.
This machine is not suitable for picking up hazardous dusts.
Use caution when moving this machine into areas that are below freezing temperatures. Any water in the
tanks or hoses can cause damage to the machine.
FOR SAFETY WHEN SERVICING or MAINTAINING MACHINE:
Stop on level surface and set parking brakes.
Disconnect the power to the machine by pressing the Red Emergency Disconnect Button when charging
batteries or during installation or removal of brushes.
Avoid moving parts. Do not wear loose jackets, shirts, or sleeves when working on machine.
Avoid contact with battery acid. Battery acid can cause burns. When working on or around batteries, wear
protective clothing and safety glasses. Remove metal jewelry. Do not lay tools or metal objects on top of
batteries.
Charging batteries generates explosive gasses. Do not charge batteries when open flames or sparks
are present. Do not smoke. Make sure the charger is turned off before disconnecting it from the machine.
Charge the batteries in a well-ventilated area with the battery cover removed completely.
Do not clean machine with a pressure washer.
Authorized personnel must perform repairs and maintenance. Use Minuteman supplied replacement parts.
SAVE THESE INSTRUCTIONS
1

INSPECTION
Carefully unpack and inspect your SCV Rider Scrubber for shipping damage. Follow unpacking
instructions on shipping pallet. Each unit has been tested and thoroughly inspected before shipment. Any
damage is the responsibility of the delivery carrier who should be notified immediately.
ELECTRICAL
This machine is battery operated and designed to operate on 36 volts DC (6) 6-volt batteries.
BATTERIES
The recommended batteries are rated 370Ah (Minuteman P/N 956715).
We do not recommend mixing AMP hour capacities. Any alternate battery sets can be used if they equal
physical size and capacity. See page 13 for service and installation.
OPERATOR RESPONSIBILITY
Read this manual carefully before operating this machine.
The operator is responsible in taking care of the daily maintenance and check ups of the machine to keep
it in good working condition. The operator must inform the service mechanic or supervisor when the
scheduled maintenance intervals are required as stated in the MAINTENANCE section of this manual.
Before starting familiarize yourself with the machine and its controls (see “Machine Overview, Front”,
“Machine Overview, Rear”, “Operator Compartment”, “Control Console” diagrams).
MACHINE COMPONENTS
FRONT
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
Front drive wheel
Side squeegee
Headlights
Accelerator pedal
Tilt-wheel lever
Steering wheel
Operator’s seat
Recovery tank lid
Recovery tank
Control console
Directional switch
Safety latch
Battery compartment
Solution tank
Electrical panel
Parking brake
Rear Squeegee
Rear wheel
Scrub deck
1

MACHINE COMPONENTS
REAR
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
Rear squeegee
Rear wheel
Side squeegee
Accelerator pedal
Solution tank
Steering column pivot
Tilt-wheel lever
LCD display panel
Steering wheel
Recovery tank lid
Vacuum filter access
Vacuum diverter
Off-aisle wand
Recovery tank
Battery compartment
Clean-out cap
Recovery dump hose
Safety latch
Recovery hose
Scrub deck
MACHINE COMPONENTS
DRIVER’S COMPARTMENT
A
B
C
D
E
F
G
H
I
J
K
L
Operator’s seat
Solution tank lid
Cup holder
Solution tank
Tilt-wheel lever
Accelerator pedal
Parking brake
LCD display panel
Steering wheel
Directional switch
Control console
Safety latch
2

CONTROL CONSOLE
For operator ergonomics, the control console houses all the primary function buttons are grouped in a
central area. The key switch, headlight switch, and off-aisle wand switch are clustered in the back area.
The directional switch (forward and reverse) is located in front of the console for easy fingertip operation.
The horn button, function buttons, and indicators are located in the main central part of the console.
Key switch
(A) Controls the machine’s power (On/Off) with a key for safety. All operational settings are retained even
when the power is turned off and on. This also serves as a reset switch when error or fault codes appear
on the LCD screen.
Off-aisle wand switch
(B) On/Off control for the water supply to
the wand and vacuum motor.
Headlight switch
(C) On/Off control for the headlights.
Main Keyboard
(D) The main keyboard is divided into
three sections: Machine settings,
Machine modes, and tank fluid level
status. See detail descriptions of each
button on the section.
Horn button
(E) Depressing the button will activate the
horn.
Directional switch
(F) When you flip the switch down, the
machine moves forward or flip the switch
upward, the machine will go into reverse
and activate the back-up alarm.
3

MAIN KEYBOARD
FULL FUNCTION MODE
When this mode is chosen, a green indicator light will illuminate within the full function icon. When the
machine is running in this mode, all machine functions will be on. When the operator sets the directional
switch to the forward position and steps the accelerator pedal, the solution pump will turn on, the brushes
will turn on and be lowered to the floor, and the rear and side squeegees will be lowered to the floor as the
vacuum motor turns on. While operating in this mode the solution will be dispersed into the brushes, which
will scrub the floor allowing the chemical in the solution to break down the dirt on the floor. As the machine
continues to move forward, the vacuum motor will pull the dirty solution water from the rear squeegee into
the recovery tank. If the operator stops moving forward and switches the directional switch into reverse,
the rear squeegee will rise up (protecting it from damage) and the vacuum motor will turn off after a few
seconds. If the operator stops moving in either direction, the machine will automatically raise and turn off
the brushes, shut-off the water and raise the rear and side squeegees. Some of the functions will take a
little while longer to turn off than others. See the LCD display section in this book to see the image on the
screen looks like when this button is selected.
DOUBLE SCRUB MODE
When this mode is chosen, a green indicator light will illuminate within the double scrub icon. When the
machine is running in this mode, the machine will perform all operations except dirty solution recovery.
This mode can be used if the floor is heavily soiled and the chemical will need additional time to emulsify
grease and oils that are on the floor. When the operator sets the directional switch to either the forward or
reverse position and steps the accelerator pedal, the solution pump will turn on, the brushes will turn on
and be lowered to the floor. While operating in this mode, the solution will be dispersed into the brushes,
which will scrub the floor allowing the chemical in the solution to break down the dirt on the floor. As the
machine continues to move forward or back, the rear squeegee and vacuum system are not on, which
allows the solution to stay on the floor emulsifying the grease and oil. If the operator stops moving in either
direction, the machine will automatically raise and turn off the brushes. After double scrubbing, the
operator should use the vacuum only mode to recover the dirty solution water from the floor. See the LCD
display section in this book to see the image on the screen looks like when this button is selected.
VACUUM ONLY MODE
When this mode is chosen, a green indicator light will illuminate within the vacuum only icon. When the
machine is running in this mode, the machine will only lower the rear squeegee and turn on the vacuum
system to recover the dirty solution from the floor. This mode is usually chosen after double scrubbing to
recover the dirty solution but it can also be used to pick up spills. When the operator sets the directional
switch to forward, the rear squeegee will be lowered to the floor as the vacuum turns on, pulling the dirty
solution water from the rear squeegee into the recovery tank. If the operator stops moving forward and
sets the directional switch to reverse, the rear squeegee will retract (protecting it from damage) and the
vacuum motor will turn off after a few seconds. If the operator quits moving in either direction, the machine
will automatically raise the squeegee and turn off the vacuum motor after a few seconds. See the LCD
display section in this book to see the image on the screen looks like when this button is selected.
TRANSPORT MODE
When this mode is chosen, a green indicator light will illuminate within the transport icon. When the
machine is set in this mode, none of the cleaning functions of the machine will operate. This mode is only
used to transport the machine from one location to another at a faster rate of speed. See the LCD display
section in this book to see the image on the screen looks like when this button is selected.
INFORMATION BUTTON
Depressing the “i” button will generate specific information such as the machine hour meter, brush motor
hours, and traction motor hours on the LCD display for a few seconds. Keeping this button depressed will
display these items of information for an indefinite amount of time until you release the button. This button
toggles the information on the screen being displayed from machine settings and hour meter information.
See the LCD display section in this book to see the image on the screen looks like when this button is
selected.
4

WATER FLOW ADJUSTMENT
These buttons are used to adjust the flow of solution to the brushes. The buttons can be used to select no
flow or one of five solution flow rates where: 1 bar = .25 gpm, 2 bars = .44 gpm, 3 bars = .63 gpm, 4 bars
= .82 gpm, and 5 bars = 1 gpm. Either pressing the increase or decrease flow rate buttons adjusts the
volume of solution flow to the brushes and is displayed on the LCD screen and represents the flow rate
setting selected. The flow adjustments can be made in either the Full function or Double scrub mode. See
the LCD display section in this book to see the image on the screen looks like when this button is selected.
BRUSH PRESSURE ADJUSTMENT
These buttons adjust the brush pressure. The buttons can be used to select one of five brush pressure
settings: 1 bar = lightest, 2 bars = light, 3 bars = medium, 4 bars = heavy, and 5 bars = heaviest. The
pressure is adjusted either by pressing the increase or decrease brush pressure buttons. The number of
bars displayed on the LCD screen represents the brush pressure setting selected. The brush pressure
adjustments can be made in either the Full function or Double scrub mode. See the LCD display section in
this book to see the image on the screen looks like when this button is selected.
EMPTY SOLUTION TANK INDICATOR
The light inside this icon will be illuminated when the solution tank is empty. At the same instant, the LCD
display will have a flashing bar on the solution flow icon signaling the operator of the solution tank status
and the solution pump shuts off. See the LCD display section in this book to see the image on the screen
looks like when this button is selected.
RECOVERY TANK FULL INDICATOR
The light inside this icon will be illuminated when the recovery tank is full. At the same instant, the LCD
display will have a flashing bar on the vacuum system icon signaling the operator of the recovery tank
status. After this warning, the rear squeegee will automatically raise and the vacuum motor will shut off
automatically after a few seconds. See the LCD display section in this book to see the image on the screen
looks like when this button is selected.
LCD DISPLAYS
The following images below are displayed when selecting the controls or buttons discussed above. The
battery gauge bar will always be displayed whenever the machine is turned on.
KEY SWITCH
When switch is turned on, the Minuteman logo
will appear in the middle of the screen.
INFORMATION BUTTON
Pressing the “i” button will display hours logged on
specific components
DIRECTIONAL SWITCH FORWARD
Silhouette of the machine with arrow pointing
forward.
DIRECTIONAL SWITCH REVERSE
Silhouette of the machine with arrow pointing
backward
Total Hours
Brush Hours
Traction Hours
5

FULL FUNCTION MODE
The vacuum icon with moving arrows, the brush
pressure bars and water flow bars will be
displayed.
DOUBLE SCRUB MODE
The brush pressure bars and water flow bars will
be displayed.
VACUUM ONLY MODE
The vacuum symbol will be displayed and no
bars displayed for brush and flow icons.
TRANSPORT MODE
Silhouette of the machine will be displayed and
arrow pointing to a direction as selected on the
directional switch.
BRUSH PRESSURE ADJUSTMENT
Increasing pressure adds more bars to the scale;
decreasing pressure removes bars from the
scale.
WATER FLOW ADJUSTMENT
Increasing flow adds more bars to scale;
decreasing flow removes bars from scale.
EMPTY SOLUTION TANK INDICATOR
A flashing bar across the water flow icon will be
displayed.
RECOVERY TANK FULL INDICATOR
A flashing bar across the vacuum icon will be
displayed.
6

LOW BATTERY INDICATOR
The battery gauge bar icon will be flashing to signal the operator that the machine is almost out of power.
Once this signal is displayed to the operator, all functions will shut off including the transport mode. The
operator has to turn the key switch OFF and then, ON to reset the machine. The machine then will only
have a few minutes left of reserve power for a short Vacuum only mode to pick up remaining solution on
the floor and Transport power.
LOW BATTERY INDICATOR
The battery gauge bar icon will be flashing
indicating that the machine is almost out of
power.
DIAGNOSTIC CODE
At the bottom of the information screen a wrench
symbol with alphanumeric characters will be
displayed when a fault occurs.
FAULT / DIAGNOSTIC CODE
At the bottom of the information screen a wrench symbol with alphanumeric characters will be displayed
when a fault occurs. In most cases, resetting the machine will correct this condition. The operator has to
turn the key switch OFF and then, ON to reset the machine. If this does not work servicing the machine
may be necessary. Below is a list of fault and diagnostic codes for troubleshooting. See Troubleshooting
tips section for further details.
SCV Fault Codes
Switch Reference Codes
May indicate incorrectly wired input switches .
07xx
Throttle Codes
May indicate incorrectly wired or faulty potentiometer .
081x
Power Down Error 0A01
Supply Over Current 1310
Solenoid Brake Codes
May indicate open or short circuit solenoid brake .
150x
High Battery Voltage 1600
Throttle Specification Modified 1D02
Inhibit Activated 1E03
Low Battery Voltage 2C0x
Battery Lock Out 2C02
Throttle Displaced Code
May indicate incorrectly wired or faulty potentiometer.
201
Bridge Supply Faults
May indicate problem with connection of motors .
310x
Freewheel Errors
Check condition of freewheel switch and connections .
700x
LCD Module Communications Codes
Serial connections to LCD Module may be intermittent.
750x
Brush Motor Code 760x
Vacuum Motor Code 770x
Traction Motor Code 780x
Emergency Stop or Belly Button Code 790x
7

OPERATION OF CONTROLS
POWER SAVE MODE
The SCV is equipped with a power save feature to conserve battery power. If the key switch power is left
ON and none of the controls are activated for a period of fifteen minutes, the SCV automatically goes into
“power down mode” and turns OFF the power to conserve your batteries in case the operator forgets to
turn the key switch off or leaves the machine unattended.
ACCELERATOR PEDAL
Located on the right side of the operator compartment on the floor is the accelerator pedal. This pedal
controls the propelling speed of the machine. The farther the pedal is pushed down the faster the machine
will travel. As discussed earlier, the directional switch governs the direction of travel the machine will take.
Switching the directional switch with your foot pushed on the pedal will make your machine change
directions (a very slight delay may occur before the direction of travel changes when switching directions
on the fly). The accelerator pedal in interlocked with the seat switch, making machine propulsion not
possible without the operator sitting on the seat.
SEAT
The ergonomically designed seat is located on top of the solution tank. There is a lever under the seat that
allows the operator to adjust the seat forward or backward for operator comfort. There is an interlock
switch located inside the seat. This makes it impossible to engage the traction drive circuitry without the
operator on the seat. If the operator were to fall off the machine, the traction drive circuitry would turn off.
STEERING WHEEL
The steering wheel (FIGURE 1) is adjustable for operator comfort by pulling the tilt-wheel lever back and
positioning the steering wheel up or down (there are four possible positions). Also, a two-position steering
column (FIGURE 2) feature gives the operator easier access to the driver’s compartment when climbing
into and dismounting from the machine. By pulling on the steering column pivot pin and positioning the
steering column in an upright fashion, enables the operator more room when climbing up and down the
machine. The operator can then position the steering column in its normal driving position by returning the
steering column back in its normal position.
FIGURE 1
FIGURE 2
8

MECHANICAL & PARKING BRAKE
Located on the left side of the operator compartment on the floor is the mechanical brake which doubles as
the parking brake. Even though the machine is equipped with a regenerative braking system, the
mechanical brakes can be activated by pushing down on the pedal and apply brakes on the rear wheels.
The mechanical brake also doubles as a Parking brake. To set the parking brake, press down on the brake
pedal as far down as possible; then, engage the parking brake lever teeth with the brake pedal tab by
rotating the lever clockwise. This will keep the brakes on the rear wheels. To disengage the parking brake,
simply push down on the brake pedal until the parking brake lever disengages itself from the pedal tab.
Another safety feature on the machine is the Electro-magnetic brake built-in on the traction drive motor.
When the machine’s power is turned off (using either the key or the emergency button), the E-mag brake is
activated and the traction motor is prevented from moving.
The mechanical /parking brake system is self-cleaning and periodic use is recommended to avoid
build up of foreign matter that may cause seizing in the mechanism and rust build up.
EMERGENCY DISCONNECT BUTTON
This button is located in the middle of the electrical panel that is
directly underneath the operator’s seat. When the red emergency
button is pressed, power will be turned off. Use this button in case of
a machine emergency. The red knob needs to be raised in order to
run the machine. To reactivate, turn the knob as shown by the arrow
on the switch and the button will pop up. All operational settings are
retained even when the power is turned off and on.
CIRCUIT BREAKERS
The circuit breakers are located next to the emergency disconnect
button. The 6-amp breaker (indicated by white arrow). This breaker
protects all auxiliary circuits on the machine (headlights, horn, and
back-up alarm). The 100-amp breaker (indicated by black arrow)
protects the main system circuit (controller). Each main component is
individually protected with an internal breaker built-in the controller.
(See fault code table) and can be reset by turning the key switch off a
few seconds and then on again.
9

BATTERY COMPARTMENT
The battery compartment is located
on the rear of the machine under the
recovery tank. Unlatching the two
safety latches on the side of the
machine enables the operator to tilt
the recovery tank and access the
batteries for servicing and
maintenance (make sure recovery
tank has been drained before tilting).
The battery compartment contains
six 6-volt batteries connected in
series. Connect the batteries
according to the battery connection
diagram (see diagram). The
recommended batteries are 370Ah
(Minuteman P/N 956715).
10

SCRUB DECK
Minuteman offers two deck types (Cylindrical and Disc) to fit your specific needs. The SCV design is very
dynamic wherein the decks are interchangeable in a matter of minutes whenever necessary (removal of
four bolts, and two quick-connects). The cylindrical brush deck has five built-in spray jets to uniformly
dispense cleaning solution on the floor and a wet sweeping debris tray to collect loose objects on the floor.
The disc brush deck dispenses cleaning solution through the center hub and contained within the bristle
area for efficient agitation of cleaning solution to the floor and channeled to the rear of the machine. The
disc brushes are also easily removed and installed with the quick release clamp by using any of the three
access doors. Another nice feature that these scrub decks have is the ability to have uniform brush
pressure applied to the floor at all times. Since the scrub deck brush pressure is computer controlled, it will
automatically adjust and compensate to uneven contours on the floor while maintaining brush pressure.
CYLINDRICAL
SCRUB DECK
A
B
C
D
E
F
G
H
I
J
K
L
M
Housing
Spray jets (5)
Access door (2)
Nut, Access door
Debris box
Connector, water
Mounting bracket
Connector, power
Brush motor (2)
Pulley cover (2)
Bolt (4)
Lock washer (4)
Flat washer (4)
DISC SCRUB DECK
A
B
C
D
E
F
G
H
I
J
Housing
Access door (6)
Brush skirt
Brush motor
Mounting bracket
Flat washer (4)
Lock washer (4)
Bolt (4)
Connector, power
Connector, water
11

SCRUB DECK INSTALLATION
When installing a cylindrical deck to a machine:
1. Install brushes after the deck has been mounted to avoid flat spots on the brushes.
2. Use a piece of cardboard underneath the deck to prevent scratches to the painted surface when
sliding the deck under the machine.
3. Make sure the scrub deck is oriented correctly with the spray jets towards the front of the machine.
When installing a disc scrub deck to a machine:
4. Install brushes on the scrub deck; this aids the installer in sliding the deck assembly into position.
5. Make sure the scrub deck is oriented correctly with the solution hose tee fitting towards the front of
the machine.
INSTALLATION INSTRUCTIONS
1. Park the machine on a flat or level surface.
2. Activate the parking brake.
3. Remove the 2 screws that fasten each plastic side covers on the machine.
4. Turn the key switch to the ON position and select the transport mode on keyboard.
5. Slide the scrub deck assembly underneath the machine (follow instructions as described above)
6. Position the scrub deck to align the mounting brackets with the mounting lugs on the lift linkage.
7. Lower the lift linkage to the floor by pressing the increase brush pressure button for ten seconds.
(Pressing the up and down brush pressure button for ten seconds toggles the scrub deck
control into a manual up and down mode for the scrub deck linkage).
8. Lower the lift linkage mounting lugs until they barely touch the scrub deck mounting brackets.
9. Fasten with the four (4) 711242 bolts, 711515 flat washer and 711546 lock washer.
10. For cylindrical scrub deck only:
a. Remove the two access doors (one each end) by removing the (3) nyloc nuts.
b. Install the brushes by sliding through the access opening.
c. Align the notches on the brush with the drive pins on the hub.
d. Push brush all the way until it bottoms out.
e. Insert access door hub to the other end of brush.
f. Reinstall nuts and tighten.
Depressing one of these buttons for ten seconds
will switch you into the manual raise/lower mode.
When you are in this mode, these buttons control
the movement of the lift linkage mechanism. To
get out of this mode, simply reset the machine by
turning the key switch off.
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SIDE SQUEEGEE
The side squeegees (left and right) are attached to the machine mainframe. These items channel the dirty
solution to the rear squeegee, helping contain the water within the machine’s cleaning path. These
squeegees are raised when the scrub deck is in the raised position. When the scrub deck is deployed, the
side squeegees are also lowered. A lift bracket (item H) raises the side squeegee off the floor when the
machine is in a non-scrubbing mode. The side squeegees are equipped with an adjustable caster (item D)
to control the blade deflection (lowering the caster lessens blade deflection). To adjust the deflection,
loosen the wing jam nut (item C) and turn the caster stem as described below. If the squeegee blade is
deflecting too much, the casters need to be lowered to control the down pressure. Lower the caster by
turning the exposed threaded stem on the caster clockwise. Make the adjustment a few turns at a time. If
the blades are not deflecting enough, raise the caster by turning the stem counter-clockwise to adjust the
caster height to allow more down pressure on the squeegee. A nylon shear bolt (item G) located at the front
and rear of the squeegee prevents undue damage to the assembly in case it hits a solid object. If the side
squeegee is subjected to high impact, the bolt will shear off and prevent severe damage to the assembly. A
turnbuckle adjustment (item F) is provided to adjust the pitch for optimum wiping performance. To adjust,
loosen Lock nut (item E) and turn the turnbuckle to make the necessary adjustments. To clean out the
debris box (item I), set the machine to the double scrub mode and when the scrub deck is lowered to the
floor, turn the key switch off. Slightly lift the debris box up by its handles and slide out towards you.
A. Squeegee blade
B. Roller guide wheel
C. Wing jam nut
D. Swivel caster
E. Lock nut (2)
F. Turnbuckle
G. Shear bolt (2)
H. Lift bracket
I. Debris box
J. Backer strip
K. Cotter
p
in
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REAR SQUEEGEE
The rear squeegee is the main element that acts as the conduit that transfers the spent solution into the
recovery tank. A daily maintenance check of this component is essential to have optimum machine
performance. The rear squeegee assembly is equipped with a universal front blade that allows the operator
the option to use a slotted and a non-slotted side for specific applications. Each blade configuration has two
usable edges. The rear blade however has four usable edges.
The squeegee is pre-adjusted at the factory. Adjustments may be required to get optimum
performance for different floors and conditions.
REAR SQUEEGEE COMPONENTS
1. Rear squeegee blade
2. Wing jam nut (2)
3. Caster stem
4. Swivel caster (2)
5. Lock nut
6. Turnbuckle
7. Front squeegee blade
8. Wing bolt (2)
9. Toggle clamp
10. Front strap (long)
11. Front strap (short)
12. Rear strap (latch side)
13. Rear strap (catch side)
14. Latch
15. Guide wheels (2)
16. Nylon wing bolt (2)
17. Nylon bolt (2)
18. Recovery hose intake
14