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SECTION IV
Maintenance
4-1 Maintenance Check List
Before Each Use
1. Check blades and spindles to be sure that no for-
eign objects, such as wire or steel strapping bands,
are wrapped around them.
2. Inspect blades for wear. Replace if necessary.
Use only genuine Bush Hog replacement parts. If it
is necessary to sharpen the blades, remove the
blades from the spindles before sharpening. DO
NOT sharpen blades while still attached to
the
mower.
3. Make sure all shields are in place and in good
condition. Repair or replace any missing or dam-
aged shields.
4. Perform lubrication per paragraph 4-2.
5. Listen for abnormal sounds, which might indicate
loose parts, damaged bearings, or other damage.
Correct any deficiency before continuing operation.
6. With the engine off, engage the blower assembly.
Check the belt tension and inspect the pulley belt for
cracks or tears.
7. Check for wear or deterioration of the upper or
lower hoses. If there are any portions of the hose
have been torn or worn through, replace with gen-
uine Bush Hog replacement parts
After Each Use:
1. Clean all debris from machine especially from the
container, underneath the belt shields and off safety
decals. Replace any missing or illegible decals.
2. Inspect unit for worn or damaged components.
Repair or replace before next use. Any replacement
components installed during repair shall include the
components current safety decal specified by the
manufacturers to be affixed to the component.
3. Check belt for proper tension
4-2 Lubrication
NOTE: Use only white lithium base grease for lubri-
cation of the shaft on the blower assembly and the
idler pulley block.
1. On initial use:
Grease the fittings on the blower and idler assembly.
The Grease Fittings can be seen in Figure 19.
2. Every 25 Hours of use:
Regrease the Grease Fittings.
4-3 Cam Assembly Adjustment
The cam assembly, which controls the blower belt
tension, comes from the factory pre-adjusted. If the
belt is too tight or becomes too loose, remove the
hair pin clip from the belt tension rod and pull the “L”
end of the rod out of it’s hole in the cam assembly.
The tension rod may then be screwed out to tighten
the belt or screwed in to loosen the belt. Replace the
“L” end into the top hole in the cam and replace the
hair pin clip. Adjust the cam stop bolt to allow the
cam to rotate slightly over center when the blower is
disengaged. (Figure 20)
Figure 20 Cam Adjustment
Figure 19 Lubrication Points
Blower
Grease Fitting
Idler
Grease Fitting
Belt Tension Rod
Cam Stop Bolt
