Minuteman MC20000QP, MC20000CE Service Manual

200X
Brush Drive
Floor Scrubber
Battery

Model: MC20000QP, CE

OPERATION

SERVICE PARTS

CARE

Revised 9/03

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 7 & 8

Tank Assembly 9 & 10

Upper Assembly 11

Console Assembly 12

Motor Lift Assembly 13

Scrubhead Assembly 14

Dashboard & Back Panel Assembly 15

Squeegee Lift & Mechanism Assembly 16

Squeegee Assembly Complete 17

Wiring Diagram 18

Wiring Diagram - CE 19

IMPORTANT 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.

• Store 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 metal 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.

SAVE THESE INSTRUCTIONS

1

ELECTRICAL REQUIREMENTS:

This piece of equipment operates on 24 Volt DC.

BATTERY REQUIREMENTS:

2 x 12V 105 Amp Hour 20 Hour Rate Deepcycle P/N 956712

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.

3. Install batteries as shown in Figure 2.

CHARGING OF BATTERIES:

Charging of 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. 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. Dashboard control panel

4. Solution control lever

5. Solution dump hose

6. Quick disconnect aux. out (optional)

7. Food pedal

8. Circuit breaker - Brush

9. Circuit breaker - Vac

10. Main power

11. Emergency button

12. Brush switch

13. Pump switch

14. Vacuum switch

15. Battery gauge

AUTO SCRUBBER BRUSH DESCRIPTION

COMPARISON RECOMMENDED

TYPE DESCRIPTION DURABILITY* COLOR TO PADS USE

Bassine Natural Fiber Short Dark Brown Red Light duty

Nylon Nylon Medium Black Tan/Red General cleaning

Dyna-Scrub Nylon impregnated Long Light Blue Red General scrubbing,

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

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

general cleaning,
acid etching

& scrubbing vinyl
floors, ceramic tile

& concrete floors

uneven concrete floors

unfinished concrete

••

•

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

••

3

OPERATING INSTRUCTIONS

BEFORE STARING, FAMILIARIZE YOURSELF WITH THE 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 (11) so it is in the up

position. Turn on main power switch (10).

4. Lower brush assembly.

- To lower the brush, first push the pedal (7) slightly outward on the machine

(unlock it), and then release it slowly.

- To lift the brush, press the pedal (7) down until lift mechanism engages.

5. Turn on brush (12).

6. Adjust solution control feed lever (4).

7. Turn on vacuum switch (14).

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

After Use:

1. Turn off solution feed (4).

2. Switch off brush (12) and raise (7).

3. Raise squeegee assembly (1).

4. Turn off vacuum motor (14).

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