User Manual
E20 Walk-Behind Scrubber
Traction Drive Cylindrical Deck
This manual is furnished with each new MINUTEMAN E20. 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 manufacturer’s suggested maintenance instructions as provided in this booklet.
· Use original Minuteman supplied parts.
2
Model E20 Traction Drive Cylindrical
Model No. E20C / E20CQP / E20CQPG / E20CQPT / E20CINT / E20CQPINT / E20CQPGINT
E20
Current (Max)
Battery Capacity (Lead Acid)
Battery Capacity (Gel)
Sound Level
Cleaning path width
Squeegee width
Productivity
Working Speed
Transport Speed
Rated voltage
Vacuum flow
Vacuum waterlift
Vacuum power
Brush type
Brush motor(s) power
Number of brushes
Brush RPM
Solution capacity
Recovery capacity
Working Grade
Weight with batteries
Weight without batteries
Dimensions (LxWxH)
Drive Motor Power
44.5 x 24.0 x 38.0 (112.8 x 47.8 x 107.4 cm)
40 amps
140Ah @20 hr
95Ah @20 hr
69 dBA
20 in (51 cm)
34 in (86 cm)
27,280 ft2 /hr ( 2,534 m2)
3.0 mph (4.8 km per hr)
3.1 mph (5.0 km per hr)
24 volts
65 cfm (110 m3/hr)
45 inches ( 112mbar)
.60 HP (450 W)
Cylindrical
3/4 HP (550W)
2
600 RPM
12Gal (45 liters)
13 Gal (49 liters)
2%
370lbs (168 kg)
235 lbs (107 kg)
1/5 HP (150W)
Technical Specifications
3
4
Table Of Contents
Safety Instructions ...................................................................................... 6
Unpacking Instructions .............................................................................. 7
Inspection ...................................................................................................... 7
Electrical ........................................................................................................ 7
Batteries ........................................................................................................ 7
Operator Responsibility ................................................................................. 7
Machine Overview ....................................................................................... 8
Controls ....................................................................................................... 10
Bail Handle.......................................................................................... 11
Handle Adjustment Knobs................................................................... 11
Key Switch .......................................................................................... 11
Direction Switch .................................................................................. 11
Squeegee Lift Lever ............................................................................ 11
Battery / Fault Gauge .......................................................................... 11
Speed Control ..................................................................................... 11
Charge Status Indicator ...................................................................... 11
Optional Hour Meter .................................................................................... 12
Circuit Breakers........................................................................................... 13
Battery Compartment .................................................................................. 14
Diagnostic Code Guide ............................................................................... 15
Machine Overview....................................................................................... 15
Handle Adjustment ...................................................................................... 16
Angle Adjustment ................................................................................ 16
Horizontal Adjustment ......................................................................... 17
Solution T ank Drain Hose............................................................................ 18
Solution Level Indicator ............................................................................... 18
Solution Fill Filter......................................................................................... 19
Recovery Tank Drain Hose.......................................................................... 19
Screened Float ............................................................................................ 20
Screened Float Removal .................................................................... 21
In-Line Solution Filter Assembly.................................................................. 22
Rear Squeegee ........................................................................................... 23
Cleaning the Squeegee............................................................................... 23
Changing the Squeegee Blades ................................................................. 23
Squeegee Blades ................................................................................ 24
Angle Adjustment ................................................................................ 24
Squeegee Blades ................................................................................ 25
Height Adjustment ............................................................................... 25
Brush Deck Maintenance ............................................................................ 26
Brush Loading / Unloading .......................................................................... 27
Brush Deck Maintenance ............................................................................ 27
The E20 Cylindrical ................................................................................... 28
Machine Operation .................................................................................... 30
To Turn ON Machine: .................................................................................. 30
To Turn ON Vacuum: ................................................................................... 30
To Turn ON Brush Motor: ............................................................................ 30
To Turn on Cleaning Solution:..................................................................... 30
Direction Switch:.......................................................................................... 30
Speed control: ............................................................................................. 30
Driving: ........................................................................................................ 30
To Charge Batteries:.................................................................................... 31
Hour Meter (Optional): ................................................................................ 31
After Use..................................................................................................... 32
Maintenance............................................................................................... 33
Troubleshooting........................................................................................... 36
Warranty ..................................................................................................... 38
5
Safety Instructions
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 OPERA TION
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. To prevent unauthorized use, machine should be stored or p arked with the key removed.
This machine is designed for level operation only. Do not operate on ramps or inclines greater than 2%.
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.
Disconnect the power to the machine by unplugging the red Battery connector located under the recovery tank near the batteries.
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.
6
SAVE THESE INSTRUCTIONS
Unpacking Instructions
Inspection
Carefully unpack and inspect your E20 W alk-Behind 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 24 volt
Batteries
The recommended batteries are rated 140Ah WET (Minuteman P/N 956140) or 95Ah Maintenance Free GEL
(Minuteman P/N 956100). W
equal physical size and capacity. If alternate battery sets are used please contact Minuteman for on board charger
settings.
Operator Responsibility
Read this manual carefully before operating this machine.
The operator is responsible for t
working condition. The operator must inform the service mechanic or supervisor when the scheduled maintenance intervals
are required as st
Before starting familiarize yourself with the machine and its controls (see “Machine Overview, Front”, “Machine Overview,
Rear”, “Control Console” diagrams).
ated in the MAINTENANCE section of this manual.
e do not recommend mixing AMP hour cap
aking care of the daily maintenance and check ups of the machine to keep it in good
s DC (2) 12-volt batteries.
acities. Alternate battery sets can be used if they
7
Machine Overview
Machine Overview
A SPRA Y BOTTLE / CUP HOLDER
B SOLUTION FILL PORT
C RECOVERY TANK LID
D RECOVERY T ANK
E BRUSH DECK
F FRONT WHEEL
G REAR CASTER
H SOLUTION TANK
- Front
8
Machine Overview - Rear
Machine Overview
A
G
B
C
A BAIL HANDLE
B SQUEEGEE LIFT LEVER
C RECOVERY TANK DRAIN HOSE
D ONBOARD CHARGER CORD
E CIRCUIT BREAKERS
F RECOVERY HOSE
L
H
D
K
E
I
F
J
G CONTROL P ANEL
H SOLUTION TANK DRAIN HOSE / LEVEL INDICAT O R
I BRUSH LIFT PEDAL
J REAR SQUEEGEE
K DIAGNOSTIC CODE GUIDE
L SOLUTION CONTROL LEVER
9
Machine Overview
Controls
A BAIL HANDLE
B HANDLE ADJUSTMENT KNOB
C KEY SWITCH
D DIRECTION SWITCH
E SQUEEGEE LIFT LEVER
F BATTER Y / FAULT GAUGE
G SPEED CONTROL
H CHARGE STATUS INDICATO R
I SOLUTION CONTROL LEVER
10
A
D
C
E
B
G
F
I
H
Machine Overview
Bail Handle
(A) When the scrub deck is lowered to the floor, the bail handle enables the brush and vacuum motors and moves the machine
forward once depressed.
Handle Adjustment Knobs
(B) Allows the handle position to be raised or lowered.
Key Switch
(C) Controls the machine’s power (Off/On) with a key for safety. When it is turned to the on position, the machine will operate.
Direction Switch
(D) This 3 position switch sets the direction the machine will move when the bail handle is pulled. The middle position is neutral -
brushes & vacuum will operate but machine will not move.
Squeegee Lift Lever
(E) When moved to the top position, the squeegee is lowered and the vacuum motor will turn on when bail handle is depressed.
When locked in the bottom position, the squeegee is raised and the vacuum motor shuts off (after a 10 second delay).
Battery / Fault Gauge
(F) This gauge displays the remaining battery charge. This gauge also displays any fault codes that might occur with the Drive Motor
Controller (see Diagnostic Codes).
Speed Control
(G) This control sets the speed at which the machine will move.
Charge Status Indicator
(H) This gauge displays the status of the batteries during charging. The gauge has a readout of 3 LEDs. 1 Green, 1 yellow, 1 Red.
Green indicating a full charge, Yellow indicating 80% charged, Red indicating the batteries are charging.
Solution Control Lever
(I) This lever controls the rate at which solution is dispensed. Moving the lever up will increase the amount of solution. Moving the
lever down will decrease the amount. Moving the lever all the way down shuts off solution flow.
11
Machine Overview
Optional Hour Meter
Minuteman offers an optional hour meter for the
E20. The optional kit replaces the power cord
mounting bracket at the rear of the machine with
one that contains an hour meter, which records
the brush motor operating time.
Kit# K-E1720HM
12
Circuit Breakers
The circuit breakers are located at the bottom of the back
panel of the machine.
A Main Control Circuit Breaker - 4A
B Brush Motor Circuit Breaker - 30A
C Vacuum Motor Circuit Breaker - 20A
D Drive Motor Circuit Breaker - 20A
If any of the functions above are not operating, check if the
circuit breaker buttons have tripped. Press to reset.
Machine Overview
B
A
C
D
13
Machine Overview
Battery Compartment
The battery compartment is located under the recovery tank. The
Battery compartment can be accessed for servicing and maintenance by tilting the recovery tank (make sure recovery tank has
been drained before tilting). The battery compartment contains
two 12-volt batteries connected in series. Connect the batteries
according to the battery connection diagram (see diagram). The
recommended batteries are 140Ah (Minuteman P/N 956140) or
95Ah (minuteman P/N 956100) Gel. The battery tray may be
drained if necessary using the orange drain hose located above
the rear caster on the right side of the machine.
14
Diagnostic Code Guide
When an error or fault occurs within the machine, a fault
code will appear on the battery gauge represented by a
specified number of flashing LEDs. (See “Troubleshooting”
for further information)
Machine Overview
15
Machine Overview
Handle Adjustment
The E20 handle was designed with operator comfort in mind. The
angle and horizontal position of the handle can be adjusted to suit
the needs of the operator.
Angle Adjustment
The handle angle can be adjusted without tools by loosening the
Angle Adjustment Knob (A) on each side and rot ating the handle
to the desired position. There are 5 angular positions 1 1.25° apart
for a total of 45° between the minimum and maximum position.
A
16
Horizontal Adjustment
Machine Overview
The horizontal position can be adjusted by removing the 4 Mounting
Bolts (B) (2 each side) with a 9/16” socket and sliding the Mounting
Plate (P) to one of the 3 available positions. The machine is shipped
from the factory in position 1.
Plate Position 3
Plate Position 2
(Fully Extended)
3
PB
Plate Position 1
(Shipping Position)
12
17
Machine Overview
Solution Tank Drain Hose
The solution tank may be drained by removing the Solution Tank Drain
Hose (A) from the Hose Barb (B) and routing the hose to a floor drain.
18
A
B
Solution Level Indicator
The Solution Tank Drain Hose also serves as a water level indicator for
the solution tank. The amount of water remaining in the solution tank
can be seen through the clear drain hose. Level markers molded into
the solution tank are positioned at 1/4, 1/2, 3/4, and full levels.
Machine Overview
Solution Fill Filter
The Solution Fill Filter (B) should be cleaned regularly.
To remove, simply open the Solution Tank Lid (A) and
pull the filter out.
Recovery Tank Drain Hose
Twist Cap to Open and Drain Twist & Lift cap to clean out
A
B
large debris
19
Machine Overview
Screened Float
20
If the recovery tank (C) is overfilled or a large amount of foaming is
present, the screened float (B) blocks the vacuum intake inside the
tank protecting the vacuum motor and internal electronics from water
damage. It is essential to keep the float in working order through
regular maintenance.
The float should be cleaned daily by thoroughly rinsing with a hose.
Removal of the screened float is not necessary for daily maintenance.
At least once a month the screened float should be completely
removed, cleaned, and checked for any damage to the seal or metal
screen.
WARNING: Damage to the machine may occur if operated
without the screened float properly in place.
A
B
C
Machine Overview
Screened Float Removal
The screened float is positioned between the vacuum manifold (A)
and recovery tank (C). The screened float (B) can be accessed by
removing the 1.5” bolt (D) and two 1.25” bolts (E) that attach the
manifold to the recovery tank using a 7/16” socket.
A Vacuum Manifold
B Screened Float
C Recovery T ank
D 1.5” Bolt
E 1.25” Bolt (2)
F Helical Washer (3)
G Flat Washer (3)
E
B
D
E
F
G
A
21
Machine Overview
In-Line Solution Filter Assembly
The pump and solution solenoid, which shuts off solution flow when the bail handle is released, are protected from debris by the in-line filter
assembly. The filter assembly is located at the front of the machine above the brush deck. It is important to check and clean the screened
washer inside the assembly regularly to ensure proper solution flow. After shutting off solution flow , unscrew the assembly (Note that the cone
of the washer is facing away from the pump). Remove washer and rinse, reinsert and screw assembly together, tightening by hand. Overtightening
with tools may damage the plastic threads.
A Fitting, MGHT
B Screened Washer
C Hose Barb Insert
D Fitting, FGHT
22
Machine Overview
Rear Squeegee
A Squeegee
B Star-shaped knob
C Adjusting screw for angle adjustment
D Suction hose
E Blade fastening latch
F Washers for caster height adjustment
G Caster Wheel Axle
Cleaning the Squeegee
Check the squeegee (A) daily and clean as
necessary.
1. Pull off the suction hose (D).
2. loosen the two star-shaped knobs (B).
3. Remove the squeegee (A).
Changing the Squeegee Blades
Check the inner and outer squeegee blades on
the squeegee (A) weekly for signs of wear. The
squeegee blades can be reused by turning them
(can be turned for 4 total uses).
1. Pull off the suction hose (D), loosen the two starshaped knobs (B) and remove the squeegee.
2. Unlock the fastening device (E) and remove the
outer squeegee blade. Turn the squeegee blade
or install a new one, as necessary . Change the
inner squeegee blade in the same way.
23
Machine Overview
Squeegee Blades
Angle Adjustment
The angle adjustment is the decisive factor in
ensuring that the squeegee blades on the
squeegee lie evenly on the floor.
1. Park the machine on a level surface and lower
the squeegee.
2. Loosen the lower wing nut (B) on the adjusting screw (C) and adjust the squeegee using
the adjusting screw so that the ends of the
squeegee blades still have contact with the
floor. By turning the adjusting screw (C) counterclockwise, the clearance between squeegee
blade and floor is increased in the center (Fig.
1). When turning the adjusting screw (C) clockwise, the clearance between squeegee blade
and floor is reduced in the center (Fig. 2).
3. Switch the machine on and check the suction
pattern. When the machine is in operation, the
entire surface of the squeegee blades (center
and outer areas) must be applied as evenly as
possible.
4. Tighten the lower wing nut (B) on the adjusting screw (C) against the metal bracket to lock
in the pitch setting.
1
2
B
A
B
A
24
Squeegee Blades
Height Adjustment
If streaks are present, despite an optimum
angle adjustment, the clearance between the
caster wheels and floor must be adjusted by
changing the number of washers underneath
the bracket that holds the wheel. The
squeegee height is preset at the factory to
2mm.
In cases of very uneven floors, e.g. grouted
tile, etc., try 3mm illustration for washer
configuration.
In cases of very uneven floors, e.g. poorly laid
tiles (water does not run off), configure as
shown in 4mm illustration.
Keep the extra washers by
installing them above the bracket
as shown.
3 mm
2 mm
Machine Overview
4 mm
25
Machine Overview
Brush Deck Maintenance
Sprayjet Maintenance
The sprayjets deliver solution to the floor. The spray tip should be cleaned weekly to ensure good cleaning results.
To Install To Remove
Figure 1 Figure 2 Figure 3
Spray tip removal and installation for cleaning
1. Remove knob located above sprayjet (Figure 1).
2. Pull sprayjet cover up and hold for easy access to spray tip (Figure 2).
3. Remove spray tip by hand by pushing the tip up into the nozzle body and rotate 1/4 turn clockwise (Figure 3).
4. Reinstall by pushing spray tip up into the nozzle body and rotate 1/4 turn counterclockwise until tip will not turn (Figure 3).
NOTE: Ensure that the tip is facing toward the deck.
26
Brush Deck Maintenance
Debris Tray Maintenance
The Debris Tray (A) collects debris from the floor during operation. It must be cleaned
regularly. Remove the tray from the deck by tilting the bottom up, then sliding it out to the
side. Empty the tray and rinse it. Return the tray by sliding the top edge into the channel
along the top-rear corner of the deck. The tray will fall into place when fully inserted.
Brush Loading / Unloading
Machine Overview
1. Raise brush deck. Unscrew the
knob on the right side of the deck
as shown above. Pull open the
Hinged Cover (A).
2. The drive side of each brush has a
black end-cap with teeth. Insert the
drive side of the brush through the
opening until engaged on to the
Drive Hub (B).
3. Insert Idle Hubs (C) into the
brushes while closing the hinged
cover. Tighten the knob on the
cover by hand, ensuring that the
hinged idle cover is flush to the
deck.
27
28
The E20 Cylindrical
This machine was designed with total operator comfort and ease of use in mind. All machine components have been designed
as a total system to efficiently clean dirty floors. Please contact your Minuteman representative for specific recommendations
for the correct brush type and chemical applications.
Before using the machine, always perform the following steps to ensure proper machine operation:
• Check under the machine for leaks.
• Check the rear squeegee for wear and damage.
• Check the solution and recovery tank levels.
After using the machine, always perform the following steps:
• Check the battery charge level. Charge batteries if necessary. When charging batteries, extra precaution is required:
- Battery acid can cause burns.
- When working on or around batteries, always wear protective clothing and safety glasses.
- Remove metal jewelry. Do not lay tools or metal objects on top of the batteries.
- Charging batteries generate explosive gasses.
DO NOT CHARGE BA TTERIES WHEN OPEN FLAMES OR SPARKS ARE PRESENT. DO NOT SMOKE.
- Charge the batteries in a well-ventilated area.
- Fluid levels should be checked before and after charging and maintained at the proper levels. If low, add distilled water until
the metal plates are covered.
- If the machine is not used for an extended period of time, batteries should be kept fully charged with a boost charge once a
week.
• Check for wire, string, or twine wrapped around the scrub brushes.
• Check the rear squeegee for wear and damage.
• Check the rear squeegee suction hose for obstructions.
• Drain and rinse the recovery tank.
• Check under the machine for leaks.
• Check the service records to determine maintenance requirements.
WARNING!
- Be sure you understand the machine controls and their functions.
- While on ramps or inclines, avoid sudden stops when tanks are filled.
- Avoid abrupt sharp turns. Slow down driving speed when going downhill.
29
Machine Operation
To Turn ON Machine:
Turn key to operate position ( I ). Wait for battery gauge to stop flashing. (If flashing continues, see troubleshooting guide)
To Turn ON Vacuum:
Lower squeegee into operating position, vacuum motor will turn ON when bail handle is depressed.
To Turn ON Brush Motor:
Lower the scrub deck to the floor by moving the brush lift pedal from the “home” (down) position to the operating position (up).
Depress the operator bail handle. Brush motor will turn ON.
To Turn on Cleaning Solution:
Move solution lever from closed (down) position up to the desired flow position. With the scrub deck on the floor, depress the
bail handle, solution will begin to flow
Note: The solution solenoid will stop solution flow whenever the bail handle is released.
Direction Switch:
Select direction of machine by moving the directional rocker switch from the neutral position to the forward or reverse position.
The direction of the machine movement is shown on the operator p
Speed control:
Move the speed dial to the desired position. Turning the dial clockwise increases the speed. T urning the dial counterclockwise
decreases the speed.
.
anel with forward and reverse arrows.
30
Driving:
Depress the operator bail handle, the machine will move in the direction selected.
Machine Operation
To Charge Batteries:
When the battery / fault gauge reaches the red zone the batteries need to be recharged. Take the machine to a well ventilated
area, unwind the battery charger power cord from the electrical box cover and plug into an appropriate power source. After
approximately 10 seconds the battery charge status indicator will turn on. Check the battery water levels before each use, refill as
needed with distilled water. Caution: do not overfill. Fill water 1/4 “ - 1/2” above the separators. Failure to maintain the
batteries may result in battery failures.
WARNING: Charging batteries generates explosive gasses. Do not charge batteries when open flames or sparks are
present. Do not smoke. Charge the batteries in a well-ventilated area .
Hour Meter (Optional):
Hour meter will automatically record operating time of the brush motor.
31
After Use
After Use
1. When finished scrubbing, lift the scrub deck. Lift the rear squeegee (the vacuum motor will turn off af ter 10 seconds).
Move the machine to a service area for daily maintenance and review items that may need service.
2. Remove debris tray from the brush deck, cleanout and rinse.
3. Empty the solution tank by disconnecting the solution tank drain hose from the barb fitting and routing hose to a
drain. Rinse the tank with clean water to prevent any buildup of dried chemicals that could clog the plumbing.
4. Empty and clean the recovery tank by flushing with a hose. Be sure to also clean the float shut off screen.
5. Remove the brushes or pad holders and rinse them in warm water and hang to dry.
6. Remove the rear squeegee and recovery hose, rinse with warm water and reinstall after cleaning.
7. Check the maintenance schedule in the next section and perform any required maintenance before storing the
machine.
8. Store the machine indoors in a clean dry place. Keep from freezing. Leave solution and recovery tank lids open for
ventilation to prevent odor buildup.
9. Turn Key switch OFF (O) and remove key.
32
Maintenance
Daily We ekly Monthly Ye arly
C harge Batteries
Check/Clean Tanks &
Hoses
Check/Clean/Rotate
the B r us h es
C heck /C lean the
Squeegee
C heck /C lean Vacu um
Shut-Off Float in
Recovery Tank
C lean th e brush deck
debr is tray.
Have a qualified service technician check the vacuum motor carbon motor brushes once a year or after 300 operating hours.
The brush motor and transaxle motor carbon brushes should be checked every 500 hours or once a year.
NOTE: Refer to the Service Manual for more detail on maintenance and service repairs.
Regularly scheduled lubrication of certain machine parts should be performed to insure trouble-free operation of the
machine. Apply a generous amount of grease into the fittings on the machine until grease seeps out around the bearings.
The grease points are listed below:
• Rear caster swivel (2)
Apply lubricant or light machine oil to lubricate the:
• Pivot mounting point of the squeegee lift mechanism to the chassis (1)
• Rear squeegee caster wheel axle (2)
Inspec t Brush
Deck Side Skirts
for Debris
Ins pec t a n d
Clean In-Line
Solution Filter
Rinse off the
underside of
brush deck
Check Eac h
Bat tery Cell(s)
Water Level
Ins pec t a n d
Clean spra y jet
tip
Lubricatio n –
Grease Fittings
Check Carbon
Brushes
33
Troubleshooting
Problem Possible Cause Remedy
Poor water pick-up
Poor scrubbing performance
Inadequate solution flow or
no solution to the floor
Ma c hine doe s not m ov e
Worn or torn squeegee blades Rotate or replace blades
Recovery tank full Empty recovery tank
R ec ov ery ta nk dr ain hose leak Sec ure drain hos e c ap or r eplace
R ec ov ery ta nk li d gasket l eak Repl ace ga sk et lid c over proper ly
Debris caught in squeegee Clean squeegee
Recovery hose clogged Remove debris and flush hose
Recovery hose to squeegee or tank
disconnected or damaged
Worn brushes Rotate or replace brushes
Wr ong brus h or c leaning c hemi ca l Cons ult Minuteman
Debris caught on scrub brushes Remove deb ris
Moving machine too fast Slow down
Lo w battery ch ar ge Rec har ge batt eries
Not using enough solution Adjust solution flow setting
Solution ta nk empty Fill s olution tank
Solution lines , filter or s pr ay jet c logged Flus h lines, and clean so lution filter
Brush motor circuit breaker has tripped Reset circuit breaker
Pump may take up to 1 minute to push
w ater after long per i ods of n on-use
Solution Lever in down positi on Rai s e lever up
Squeegee is down and directional
swit ch is in reverse positio n
Traction drive circuit breaker has tripped Reset circuit breaker
Batteries lost power Rec harge ba tteri es
Directional switch in neutral position Activate FWD or REV position
Rec onnect or r eplace recove r y hose
and spray jet.
Run pump until sol ution f l ows.
Raise squeegee when in reverse
mode
34
Problem Possible Cause Remedy
y
ging
Tripped Control Power circuit breaker Reset circuit breaker
Ma c hin e doe s not
operate
Va cuum motor
d oes not turn on
Batteries do not
charge
Brush deck
vibration
Batteries ha ve low charge R ec harge batter i es
Battery charger operating Unplug ba tte ry charger when charge is co mplete
Key switch off Turn key on
Bail handle depr essed too quickly afte r
turning key o n
Recover
Excessive foa ming in recovery tank.
Squeegee in raised po s ition L ower squeegee
Tripped vacuum motor circuit breaker Reset b reaker
Bro ken vacuum limit switch Replace switch
Carbon Brushes worn Replace carbon brushes
Vacuum switch disconnected Connect wiring
C har ger not plugged t o wall outlet Plug into wal l outlet
C i rcuit br eake r tripped in wall outlet Reset breaker
Battery disconnected fr om machine Connect batt ery to machine
Ch arger malfunction Call service
Bru shes may have fla t spot s from sitting
for a long period of time on the floor
D ebr is in br ushes R emove debris fr om brushes.
tank full Empty recovery tank
Turn key off, turn on, wai t until battery ga uge lig hts up
without flashing
Empty recovery tank.
Rinse off the screened float inside recovery tank.
U s e less or change ch emical.
U s e de-foam ing agent.
R otate on e of the brushes in th e deck. Use mac hine
f or 30 minu t es, flat spots will work themselves out.
Charger Warn ing Indicator s
LED Status Description
RED LED lamp blink once
Warning
RED LED lamp blink twice
Ou t put open cir cui t or sh ort circu i t or re verse pol arity con n e ction of charger to
ba tter y . B at tery voltage is too high (may be connec t ed to wrong voltage bat tery).
Abnormal cycle (ma y be we ak or ba d ba ttery)
Char
time has safety timed out due to battery prob lem.
Troubleshooting
35
Troubleshooting
Fault / Diagnostic Codes
The Battery / Fault gauge will flash when a fault is detected. A decal labeled “Diagnostic Codes” is located below the battery gauge as an abbreviated
and convenient guide to determine the cause of the fault and the remedy (refer to machine or see “Diagnostic Code Guide” section of this manual). The
flashing codes are for the following:
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The battery needs charging, there is a bad
connection to the battery or dependent on
programming, may indicate that the battery
lockout function is active and the controller is
in a restricted mode of operation. Check the
connections to the battery. If the connections
are good, try charging the battery.
There is a bad connection to the motor. Check
all connections between the motor and the
controller.
The motor has a short circuit to a battery
connection. Contact your service agent.
The battery charge level has fallen below the
Battery Lockout level and the controller is
inhibiting certain machine functions. Charge
the battery.
Troubleshooting
Not used.
The controller is being inhibited from driving,
this may be because the battery charger is
connected.
The bail handle was activated prior to turning
the machine on. Make sure that the bail handle
is in the rest position. Restart the key switch.
A controller fault is indicated. Make sure that
all connections are secure.
Not used.
An excessive voltage has been applied to the
controller. This is usually caused by a poor
battery connection. Check the battery
connections.
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Minuteman International Made Simple Commercial Limited Warranty
REVISION F EFFECTIVE 6/1/2009
Minuteman International, Inc. warrants to the original purchaser/user that the product is free from defects in workmanship and materials
under normal use. Minuteman will, at its option, repair or replace without charge, parts that fail under normal use and service when operated
and maintained in accordance with the applicable operation and instruction manuals. All warranty claims must be submitted throu gh and
approved by factory authorized repair stations.
This warranty does not apply to normal wear, or to items whose life is dependent on their use and care, such as belt s, cords, switches, hoses,
rubber parts, electrical motor components or adjustments. Part s manufactured by Minuteman are covered by and subject to the warranties
and/or guarantees of their manufacturers. Please contact Minuteman for procedures in warranty claims against these manufacturers.
Special warning to purchaser — Use of replacement filters and/or prefilters not manufactured by Minuteman or its designated licensees, will
void all warranties expressed or implied. A potential health hazard exists without original equipment replacement.
All warranted items become the sole property of Minuteman or its original manufacturer, whichever the case may be.
Minuteman disclaims any implied warranty, including the warranty of merchantability and the warranty of fitness for a particular purpose.
Minuteman assumes no responsibility for any special, incidental or consequential damages.
This limited warranty is applicable only in the U.S.A. and Canada, and is extended only to the original user/purchaser of this product.
Customers outside the U.S.A. and Canada should contact their local distributor for export warranty policies. Minuteman is not responsible for
costs or repairs performed by persons other than those specifically authorized by Minuteman. This warranty does not apply to damage from
transportation, alterations by unauthorized persons, misuse or abuse of the equipment, use of non-compatible chemicals, or damage to
property, or loss of income due to malfunctions of the product.
If a difficulty develops with this machine, you should contact the dealer from whom it was purchased.
This warranty gives you specific legal rights, and you may have other rights which vary from state to state. Some states do not allow the
exclusion or limitation of special, incidental or consequential damages, or limitations on how long an implied warranty lasts, so the above
exclusions and limitations may not apply to you.
38
Cord Electric Group: Three years parts, two years labor, ninety days travel (Not to exceed two hours)
Exceptions……….
Model Parts Labor Poly Travel
Port A Scrub 1 yr 6 months 10 yrs 0
MPV 13 1 yr 0 0 0
MPV 14 & 18 2 yrs 1 yr 0 0
V Series Upright Vacuums 1 yr 1yr 0 0
Rapid Air Blower 1 yr 1 yr 10 yrs 0
Explosion Proof Vacuum 1 yr 1 yr 0 0
X12, X12H & TRS 14 1 yr 1 yr 10 yrs 0
E17 & E20 Electric Scrubbers 1 yr 6 months 10 yrs 0
Pneumatic Vacuums 3 yr 1 yr 0
0
Description Parts Labor Poly Travel
Battery Operated Group 3 yrs 2 yrs 10 90 days
Sweepers 1 yr 1 yr 10 90 days
Internal Combustion Group 1 yr 1 yr 10 90 days
Not to exceed two hours
Exception: PAS 14B 1 yr 1 yr 10 yr 0
Battery Chargers: One year replacement
Replacement Parts: Ninety days
Batteries: 0-3 months replacement, 4-12 months pro-rate
Polyethylene Plastic Tanks: Tanks have 10yr warranty, no additional labor
39
Rev C 08/12
988728UM
A Member of the Hako Group
www.minutemanintl.com
Phone 630-627-6900 · Fax 630-627-1130
Minuteman International · 14N845 U.S. Route 20 · Pingree Grove, Illinois 60140 USA
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