MAINTENANCE
3-11
285 MM191 (12---89)
TO FILL HYDRAULIC FLUID RESERVOIR
1. Remove the reservoir breather-filler cap.
2. Pour new, approved hydraulic fluid through a
200 mesh screened funnel and into the
reservoir filler neck.
ATTENTION! Use only new, approved hydraulic
fluid to fill the hydraulic fluid reservoir. Do not
overfill.
3. Check the hydraulic fluid level in the reservoir
with the reservoir dipstick.
4. Add hydraulic fluid until the level in the reservoir
is between the “add” and the “full” range. Do
not overfill.
NOTE: Do not overfill the hydraulic fluid reservoir. As
hydraulic fluid heats to its normal operating
temperature, it expands. Always allow for this
expansion when filling the hydraulic fluid reservoir.
5. Place the reservoir breather-filler cap securely
on the reservoir filler neck.
6. Start engine and operate all of the hydraulic
components. Then recheck the hydraulic fluid
level.
HYDRAULIC PUMPS
The machine propelling pump is a variable
displacement hydraulic piston pump. It is driven by
the engine via a chain coupling.
The machine accessories pump is a hydraulic gear
pump. It is tandem mounted to the hydraulic piston
pump.
After repairing or replacing a hydraulic pump, or
when system contamination is likely, change the
hydraulic fluid in the reservoir and the hydraulic fluid
filter.
DIRECTIONAL PEDAL
The directional pedal controls the flow of hydraulic
fluid to the hydraulic drive motor. The pedal has
three positions--- ---“forward,” “neutral,” and
“reverse.” The “forward” and “reverse” positions
send hydraulic fluid to the drive motor to propel the
machine.
The “neutral” position is the position in which the
propelling pump sends no hydraulic fluid to the
propelling motor. The machine should not creep
when the pedal “neutral” position is correctly
adjusted. Adjust the pedal linkages, as described in
TO ADJUST DIRECTIONAL PEDAL
, whenever the
machine creeps or after replacing the hydraulic
propelling pump or pump linkages. The pedal
linkages should also be adjusted whenever the
reverse speed seems excessive or inadequate.
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 ...