5.4 Clutch Inspection
Inspect clutch between each use.
NOTICE
Prevent clutch damage.
Engine must be running at operating
speed (3600 rpm) when grinding a
stump.
1. Park grinder on a level surface.
2. Shut off engine.
3. Inspect clutch bearing seal area (A). Grease
on outside of seal indicates excessive heat.
Discoloration in areas (B) also indicates
excessive heat. Excessive heat is a result
of clutch slippage. This is normally due to
grinding a stump at less that operating speed.
Verify engine throttle is properly adjusted so
engine runs at operating speed (3600 rpm)
when safety bar is tight against handle.
4. Inspect pulley grooves. Wear in the bottom of
pulley grooves (C) indicates that belt is worn
out and must be replaced. Excessive belt wear
is a result of belt slippage. This is normally due
to belt not being tight enough and will damage
the pulley as it must run cool to work properly.
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