Minuteman MC20000CE Guía

200X

Brush Drive

Floor Scrubber

Battery

Model: MC20000QP, CE

Revised 6/02

OPERATION SERVICE PARTS 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 7 & 8

TankAssembly 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

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.

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

COMPARISON RECOMMENDED

TYPE DESCRIPTION DURABILITY* COLOR TO PADS USE

Bassine Natural Fiber Short Dark Brown Red Light duty

general cleaning,

acid etching

Nylon Nylon Medium Black Tan/Red General cleaning

& scrubbing vinyl

floors, ceramic tile

& concrete floors

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

with 500 Grit vinyl tile, ceramic

Silicon Carbide tile, epoxy floors,

Fine Bristle, urethane finish,

Dense Fill uneven concrete floors

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

with 120 Grit Silicon scrubbing, tile floors,

Carbide Fine Bristle, concrete floors

Dense Fill

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

with 80 Grit and scrubbing, tile

Silicon Carbide floors, unfinished

Coarse Bristle concrete floors

Strata-Grit Nylon impregnated Long Dark Blue Black Heavy duty

with 46 Grit stripping/scrubbing

Silicon Carbide unfinished concrete

Coarse Bristle

AUTO SCRUBBER BRUSH DESCRIPTION

••

•

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

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.

SQUEEGEE ADJUSTMENTS

Squeegee Adjustment

The squeegee set-up is pre-adjusted

at the factory. Adjustments may be

required to get optimum performance

for different floors and conditions.

Pitch Control Adjustment

1. Ensure that the scrubber is on

a relatively flat surface. Pull the

red emergency button away from

the dashboard to activate power.

Turn on the main power switch

and turn the key switch. Raise

the scrubhead off the floor.

Turn the vacuum switch.

2. Lower the squeegee (item 1)

to the floor and move the

machine one or two feet

forward to check the rear

squeegee blade 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, pitch adjustment is necessary. Loosen the pivot screw (item 2) and the

pitch screw (item 3). Move the machine forward and allow the squeegee to level itself

or adjust the angular position accordingly to achieve a uniform blade deflection.

Re-tighten screws.

5. In certain applications where a different blade set-up is required, the reinforcement

blade (item 4) may be turned upside down. The notch, which is normally on the bottom

will now be located on the topside. This allows the rear squeegee blade a larger deflection

than normal.

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.

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

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

as shown on Fig. 1.

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

BASE ASSEMBLY

Parts List

Item Part No. Qty. Description

1 200102 1 Base

2 200250 1 Axle Weldment

3 712310 2 WSR-Flat .52 x .87 x .06

4 762332 2 Wheel, 8 x 2 w/Bearing

5 711375 1 Nut-Nyloc 3/8-16

6 711578 1 WSR-Flat ½ Brass

7 712318 2 WSR-Flat ¾ x 1.12 x .12

8 712759 2 WSR-Flat 5/16 x 1.37 x .06 SS

9 712042 2 BOLT-WSR HH 5/16-18 x .62

10 711544 30 WSR-Helical 1/4

11 711203 19 BLT-HH 1/4-20 x .62

12 711505 11 WSR-Flat ¼

13 200158 1 Pin Bracket

14 200153 1 Squeegee Mechanism Assy.

15 711808 1 Cotter Pin

16 210415 1 Clevis Pin 5/16

17 260183 3 Nut ¼ NPT Nyloc

18 712564 1 Bolt-HH ¼-20 x 1 SS

19 200265 1 Back Panel Assy. - BD

20 200154 1 Electrical Box Cover

21 715286 1 Decal, CB

22 711125 4 SCR-ST-B #10 x ½

23 713002 8 BLT-HH 1/4-20 x .75

24 200345 2 Caster, 3 1/2”

25 200125 1 Battery Tray Weldment

26 210048 1 Battery Liner

27 712565 5 SCR-MC ¼-20 x .62 SS

28 200145 1 Hinge

29 200146 1 Hinge Plate

30 711228 4 Bolt-HH 5/16-18 x ¾

31 711507 4 WSR-Flat .37 x 1.12 x .06

32 200233 1 Bottom Cover

33 712822 5 SCR-THMS 10-24 x ½

34 200235 1 Hose Nylobraid 17.50

35 450076 2 Crimp Clamp 185R SS

36 200255 1 Scrubhead Assy. BD

37 200186 1 Motor Cover

38 200280 1 Motor Lift Assy.

39 712099PLT 2 Shoulder Bolt ½ x .50

40 711510 4 WSR-Flat .50 x 1.38 x .10

41 711545 4 WSR-Helical 5/16

42 200130 1 Pawl Weldment

43 200260 1 Solution Valve Assy. - BD

44 200234 1 Solution Hose 51.00

45 711316 3 Nut-Hex ¼-20

46 200129 1 Pawl Mounting Bracket

47 711575 6 WSR-Flat .312 x .75 x .06

48 200318MCH 1 Reservoir

49 712908 2 Nut-Wizz 10-24

50 260183 1 Nut-Nylon 1/4 NPT

51 833325 1 Barb 90°Elbow 3/8 x 1/4 NPT

52 82-54-A 1 Clamp

53 711106 1 SCR-ST-A 10 x .75 PL

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