MAINTENANCE
3-61
285 MM191 (6---90)
TO REPLACE SCRUB BRUSH
1. Start the engine, raise the scrub attachment,
and set the hopper support bar.
WARNING: Falling hopper. Engage hopper
support bar before working under hopper.
2. Stop the engine and set the machine parking
brake.
FOR SAFETY: Before leaving or servicing
machine; stop on level surface, set parking brake,
and turn off machine.
3. Remove the brush idler arm nut.
A
B
C
02778
IDLER ARM
A. Idler Arm
B. Nut
C. Scrub Brush
4. Pull the brush idler arm off the arm bracket.
5. Pull the scrub brush off the drive hub.
A
B
C
02770
REMOVING SCRUB BRUSH
A. Bracket
B. Idler Arm
C. Scrub Brush
6. Align the scrub brush drive slots with the drive
keys on the drive nuts.
7. Slide the scrub brush onto the drive hub.
8. Slide the idler hub onto the scrub brush and
arm bracket.
9. Secure the idler arm with nut.
10. Check and adjust scrub brush pattern as
described in
TO CHECK AND ADJUST SCRUB
BRUSH PATTERN
.
TO CHECK AND ADJUST SCRUB BRUSH PATTERN
1. Apply chalk, or some other material that will not
blow away easily, on a smooth, level floor.
2. With the scrub brush position lever in the (Side
Brush Up) position, move the scrub attachment
over the test area. Set the parking brake.
3. Press the main brush and vacuum fan switch.
Summary of Contents for 285
Page 1: ...r 285 Sweeper Scrubber ...
Page 6: ...ABOUT THIS MANUAL 285 MM191 12 89 d ...
Page 18: ...SPECIFICATIONS 285 MM191 12 89 1 2 ...
Page 22: ...SPECIFICATIONS 285 MM191 12 89 1 6 ...
Page 24: ...OPERATION 2 2 285 MM191 12 89 ...
Page 62: ...OPERATION 2 40 285 MM191 NIL ...
Page 76: ...MAINTENANCE 285 MM191 12 89 3 14 04644 HYDRAULIC SCHEMATIC LOW DUMP MODEL ...
Page 77: ...MAINTENANCE 3 15 285 MM191 12 89 04645 HYDRAULIC SCHEMATIC MULTI LEVEL DUMP MODEL ...
Page 103: ...MAINTENANCE 3 41 285 MM191 6 90 06187 ELECTRICAL SCHEMATIC AUTO SHAKER RFS ...
Page 104: ...MAINTENANCE 285 MM191 6 90 3 42 06187 ELECTRICAL SCHEMATIC AUTO SHAKER RFS ...
Page 134: ...APPENDIX 285 MM191 12 89 4 2 ...