Minuteman mc20001qp, mc20001ce, mc20002qp, mc20002ce Service Manual

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200X

Model: MC20001QP, CE

Traction Drive
Deluxe
Floor Scrubber
Battery

OPERATION

SERVICE PARTS

MC20002QP, CE

CARE

TABLE OF CONTENTS

Page

Safety Instructions 1
Electrical Requirements 2
Control Panel Identification 3
Operating Instructions 4
Squeegee Adjustments 5
Brush Installation/Removal 6
Base Assembly - Traction Drive 7, 8
Base Assembly - Deluxe 9, 10
T ank Assembly 11, 12
Upper Assembly 13
Console Assembly 14
Motor Lift Assembly - Deluxe 15, 16
Motor Lift Assembly - T raction Drive 17
Scrubhead Assembly 18
Dashboard & Back Panel Assembly 19
Squeegee Lift & Mechanism Assembly 20
Squeegee Assembly Complete 21
Wiring Diagram 22, 23
Wiring Diagram - CE 24, 25

IMPORT ANT SAFETY INSTRUCTIONS

CAUTION

Operators must read and understand this manual before operating or maintaining this equipment.

• Keep hands and feet clear of moving parts while machine is in operation.

• All switches must be in the “OFF” position when charging batteries.

• Electrical motors and components can cause an explosion when operated near explosive materials
or vapors. Do not operate this machine near flammable materials such as solvents, thinners, fuels,
grain dusts, etc.

• Make sure all switches are turned “OFF” and battery connections are removed before performing
any maintenance procedures.

• S tore or park this machine on a level surface only .

• These machines are designed for level floor operation only. DO NOT OPERATE on ramps or
inclines.

• 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 met al objects on top of batteries.

• This machine is not suitable for picking up hazardous dust.

Charging batteries generates explosive gases. 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 batteries. Charge the batteries in a well-ventilated area.

Maintenance and repairs must be performed by authorized personnel.

SA VE THESE INSTRUCTIONS

1

ELECTRICAL REQUIREMENTS:

This piece of equipment operates on 24 V olt DC.

BATTERY REQUIREMENTS:

2 x 12V 185 Amp Hour 20 Hour Rate Deepcycle P/N 956709
2 x 12V 210 Amp Hour 20 Hour Rate Deepcycle P/N 956210

BATTERY SERVICE AND INSTALLATION:

Warning: 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.

BATTERY INSTALLATION:

1. Raise tank assembly by gripping the front of the tank and lift the tank backward as shown in Fig. 1.

2. Install batteries as shown in Figure 2.

CHARGING OF BATTERIES:

Charging of batteries generates explosive gases. DO NOT CHARGE BA TTERIES WHEN OPEN
FLAMES OR SPARKS ARE PRESENT. DO NOT SMOKE. Make sure the charger is turned off
before disconnecting it from the batteries. Charge the batteries in a well-ventilated area. Fluid levels
should be checked before and after charging and maintained at the proper levels.

2

1. Squeegee lift lever

2. Recovery dump hose

3. Reverse handle

4. Dashboard control panel

5. Forward handle

6. Safety bar switch

7. Solution control lever

8. Solution dump hose

9. Quick disconnect - Aux. out (Deluxe only)

10. Foot pedal (TD only)

11. Circuit breaker - Brush

12. Circuit breaker - Vac

13. Circuit breaker - System

14. Circuit breaker - Transaxle

15. Keyswitch

16. Main power

17. Emergency button

18. Brush pressure gauge

19. Brush control

20. Pump switch

21. Speed control

22. Battery condition meter

AUTO SCRUBBER BRUSH DESCRIPTION

TYPE DESCRIPTION DURABILITY* COLOR TO PADS U SE

Bassine Natural Fiber Short Dark Brown Red Light duty

Nylon Nylon Medium Black Tan/Red General cleaning

Dyna-Scrub Nylon impregnated Long Light Red General scrubbing,

with 500 Grit vinyl tile, ceramic
Silicon Carbide tile, epoxy floors,
Fine Bristle, urethane finish,

Power-Scrub Nylon impregnated Long Rust Red/Blue Moderate aggressive

Poly-Grit Nylon impregnated Long Green Brown/Black Aggressive stripping

Strata-Grit Nylon impregnated Long Dark Blue Black Heavy duty

Dense Fill

with 120 Grit Silicon scrubbing, tile floors,
Carbide Fine Bristle, concrete floors

Dense Fill

with 80 Grit and scrubbing, tile
Silicon Carbide floors, unfinished
Coarse Bristle concrete floors

with 46 Grit stripping/scrubbing
Silicon Carbide

Coarse Bristle

••

•

Durability is dependent on floor surface, chemicals used and proper care.

••

COMPARISON RECOMMENDED

general cleaning,
acid etching

& scrubbing vinyl
floors, ceramic tile

& concrete floors

uneven concrete floors

unfinished concrete

3

OPERATING INSTRUCTIONS

BEFORE STATING, FAMILIARIZE YOURSELF WITHTHE MACHINE AND ITS CONTROLS
(SEE “MACHINE OVERVIEW” & CONTROL PANEL DIAGRAMS)

1. Filling: Fill the solution tank with the desired amount of water and add liquid cleaning solution to

the proper dilution ratio. DO NOT USE powdered cleaning chemicals. Powders are unlikely to
dissolve thoroughly , resulting in clogging the in-line solution filter. This can reduce or stop water
flow to the brush.

2. Close lid.

3. Turn on machine by lifting the red emergency disconnect button (17) so it is in the up position.

Turn keyswitch (15) clockwise to “on” position and turn on main power switch (16).

4. Adjust main speed control (21) to full counter-clockwise position.

5. Lower brush assembly.

- T o lower the brush, first push the pedal (10) slightly outward on the machine (unlock it), and
then release it slowly or by pressing “brush down” switch (19) on Deluxe models.

- T o lift the brush, press the pedal (10) down until lift mechanism engages or by pressing ”brush
up” switch (19) on Deluxe models.

- Brush will come on automatically when brush in on the floor and “forward” (5) or “reverse” (3)
handles are squeezed and remain on approximately 5 seconds after release.

6. Adjust solution control feed lever.

7. Select vacuum operations:

- “V acuum On” mode (23), V acuum will remain on until switched to the “off” position

- “V acuum Auto” mode (23), V acuum will come on automatically when “forward” or “reverse”
handle is squeezed, and scrubhead is on the floor . The brush and vacuum will remain on
approximately 5 minutes.

8. Lower squeegee assembly by lowering handle (1).

9. Squeeze “forward” handle (5) and adjust forward speed (21) as desired.

After Use:

1. Turn off solution feed.

2. Raise squeegee assembly .

3. Turn off vacuum motor .
Solution and recovery tanks should be emptied after every use.

MAINTENANCE:

Daily 1. Clean float assembly & squeegee blades. Vac filter

2. Recharge batteries (check battery acid levels before and after charging).

Monthly 1. Check wear on squeegee blades.

2. Grease front wheels.

3. Grease pivot points on brush motor assembly .

Every 500 hours check condition of carbon brushes on vacuum motor and brush drive motor.

4

SQUEEGEE ADJUSTMENTS

The squeegee set up is pre adjusted at the factory. Adjustments may be required to get optimum
performance for different floors and conditions.

1 Ensure that the scrubber is on a relatively flat surface. T urn on the main power switch and turn the key

switch clockwise to the on position. Raise the scrubhead off the floor. Turn the vacuum switch to the
“vacuum only” position.

2 Turn the speed control knob counter clockwise to the low speed position. Lower the squeegee (item 1)

to the floorand squeeze the forward control handle, moving the machine one or two feet forward to
check the rear squeegee blade (item 8) for uniform deflection to the floor.

3 If uneven deflection or lay is evident, minor adjustments may be necessary to avoid streaking and

uneven wear on the blade.

4 To correct this, loosen the wing jam nut (item 4) in order to adjust the castor height. If the squeegee

blade is deflecting too much, the castors need to be lowered to control the down pressure. Lower the
castor by turning the exposed threaded stem (item 9) on the castor clockwise. Make the adjustment a
few turns at a time. Repeat Step 2.

5 If the blades are not deflecting enough, raise the castor by turning the stem counter clockwise to adjust

the castor height to allow more down pressure on the squeegee. Repeat Step 2.

6 Make sure that there is an even deflection on the entire length of the rear blade. Adjust the castors and

retighten the wing jam nuts to lock the castor setting in place.

7 Pitch adjustment is necessary if the outer ends on the squeegee blade does not contact the floor and

there is too much deflection in the middle area or if the outer ends are over deflected and there is no
contact in the middle.

8 To adjust the pitch, lower the squeegee to the floor. Loosen the lock nut (item 3) in the turnbuckle

assembly. Turning the turnbuckle (item 2) clockwise or counter clockwise controls the forward and
backward pitch of the squeegee. Having the rear blades deflected uniformly along the entire length is

the desired set up.
9 Repeat Step 2 until the desired set up is achieved.
10 In certain applications where a non-slotted front wiper blade (item 6) is needed, detach the squeegee

assembly by loosening the wing bolts (item 7). Unlock the clamp on the front squeegee to release the

straps and flip the blade over to the non-slotted side. Reattach straps and lock the clamp back in place.
11 You can also easily replace the rear blade by unlatching the latch (item 5) and removing the straps by

sliding them off the assembly.

5

BRUSH INSTALLATION - REMOVAL

INSTALLATION
Traction Drive

1. Raise the scrubhead to the “UP” position by depressing the pedal (A) downward as shown on

Fig. 1.

Deluxe Model

1. Raise the scrubhead to the “UP” position by pressing the switch “BRUSH UP” (B) switch as

shown on Fig. 2 until the scrubhead stops retracting upwards.

2. Center brush (D) under the scrubhead shroud while lining up the center hex drive hub and pressing

the brush up until the brush engages on the drive hub.

REMOVAL
Traction Drive

1. Raise the scrubhead to the “UP” position by depressing the pedal (A) downward as shown on

Fig. 1.

Deluxe Model

1. Raise the scrubhead to the “UP” position by pressing the switch “BRUSH UP” (B) switch as

shown on Fig. 2 until the scrubhead stops retracting upwards.

2. Remove the brush (D) by stepping on the “BRUSH RELEASE PIN” on the top of the scrubhead

shroud as shown on Fig. 1 below .

Figure 1 Figure 2

6