MAINTENANCE
3-23
285 MM191 (12---89)
A
B
03500
INSPECTING AIR FILTER ELEMENT
A. Bright Light
B. Filter Element
15. Install the new or cleaned filter element so the
fins on the element are at the intake end of the
air cleaner. Use care so the fins are not
damaged. Make sure the element is seating
evenly. Tighten the element wing nut.
16. Install the dust cap with the arrows pointing up.
Tighten the clamp ring to hold it in place.
Check all intake hose connections for leaks or
abrasion.
A
02492
DUST CAP
A. Dust Cap
17. Reset the air filter restriction indicator.
18. Close the access doors.
FUEL SYSTEM -- GASOLINE
FUEL FILTER
The fuel filter traps fuel impurities. It is located below
the air filter. Replace the filter element as required.
CARBURETOR
The carburetor has two basic adjustments. Those
adjustments are idle fuel mixture and idle speed.
Check and adjust idle fuel mixture and idle speed
after every 400 hours of operation. The idle fuel
mixture is controlled by a screw located on the front
of the carburetor. Turning the screw in, clockwise,
leans the fuel mixture. Turning the screw
counter-clockwise, richens the fuel mixture.
The idle speed is controlled by a screw located on
the side of the carburetor next to the throttle linkage.
Turning the screw clockwise increases engine
speed. Turning the screw out, counterclockwise,
decreases engine speed. Proper idle speed is 950 +
50 rpm with all accessories in the “off” position.
WARNING: Fuel vapor is present when
servicing fuel system. Fire or explosion can
result. Keep flames and sparks away.
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 ...