Troubleshooting - Graco GrindLazer Pro RC813 G Operation, Repair, And Parts

Troubleshooting

To avoid injury from unexpected start up, disconnect
spark plug wire and black battery cable before you
service your unit.
Problem
Cutters wearing unevenly/prema-
turely
Cutters Shaft Breakage
unevenly/prematurely
Excess Vibration
Machine jumps erratically
Drive belt wearing prematurely
Cutter Head Engage Lever will not
raise/lower (non-DCS models
only)
Cutter Head Adjustment Dial will
not turn (non-DCS models only)
3A5581C
Cause
Cutter head is too low
Material build up
Bearings may be worn
Wrong cutters for application
Cutter head is too low
Over 40 hours service life
Bearings may be worn
Drive shaft worn
Improper cutter set-up
Spindle contacting the ground
Wheels worn out
RPM is too low
Surface is severely uneven
Pulley is misaligned
Wrong belt
Cutter Head Adjustment Dial is set too high
or low
Threads are not greased
Linkage may be bent
Cutter Head Adjustment Dial may be out of
position
Solution
Raise the cutter head
Clean the cutters
Replace bearings
Contact Tech Services
Raise the cutter head
Replace shafts
Replace bearings
Replace drive shaft
Contact Tech Services
Raise the cutter head
Replace the wheels
Turn engine throttle to highest setting
Move to smoother surface
Re-align pulley, see
Engine Pulley Replacement, page 28
Order new belt
Raise or lower the Cutter Head Adjustment
Dial
Clean and grease threads
Replace linkage
Raise or lower cutter head adjustment dial
Troubleshooting
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