5 SERVICE AND MAINTENANCE
^
WARNING
Moving parts can crush and cut.
Keep clear of moving components.
Stop engine before performing
inspections or maintenance.
^
WARNING
Prevent serious injury or death.
Wear proper protective equipment
appropriate for the job.
5.2 Inspections
Inspect the unit for worn or damaged parts. Repair
or replace parts as needed.
5.1 Maintenance Intervals
Item
Daily
Before
Use
Every
4
Hours
Every
30
Hours
Weekly
Every
100
Hours
Verify emergency stop is functioning properly.
●
With engine stopped, verify throttle is fully open when
safety bar is pulled tight against handle.
●
Check cutting teeth for wear. Rotate or replace
cutting teeth as necessary.
●
Check engine air filter. Clean or replace as
necessary.
●
Lubricate pivot point grease fittings.
●
Lubricate rotor bearings
●
Check rotor bearings for side-to-side and up/down
movement. Replace bearings if movement is found.
●
Check drive belt condition and tension.
●
Change engine air filter.
●
Change engine oil.
●
5.3 Throttle Inspection
With engine stopped, pull safety bar tight against
handle and verify throttle (A) is against stop (B).
If throttle is not against stop, loosen clamp screw
(C) and adjust throttle cable case as necessary.
Tighten screw (C) and re-check. Throttle (A)
must be against stop (B) and when safety bar
is tight against handle. Engine must be running
at operating speed (3600 rpm) when grinding a
stump.
14
