Troubleshooting
3A7398A
23
Troubleshooting
HYDRAULIC MODELS
To avoid injury from unexpected start up, always dis-
connect the Hydraulic Supply/Return Lines before you
service your machine.
GAS MODEL
To avoid injury from unexpected start up, disable engine
as follows: 1) Disconnect both spark plug wires. 2) Dis-
connect negative (-) battery cable from battery.
CRUSH HAZARD
To avoid serious injury or death, never work under the
equipment unless it is securely supported by safety
stands or blocks.
Problem
Cause
Solution
Cutters wearing unevenly/prema-
turely
Cutter head is too low
Raise the cutter head.
Material build up
Clean the cutters.
Bearings may be worn
Replace bearings.
Wrong cutters for application
Contact Tech Services.
Excess Vibration
Bearings may be worn
Replace bearings.
Drive shaft worn
Replace drive shaft.
Improper cutter set-up
Contact Tech Services.
Spindle contacting the work surface
Raise the cutter head.
Wheels worn out
Replace the wheels.
GrindLazer jumps erratically
RPM is too low
Turn engine throttle or speed control to
highest setting.
Surface is severely uneven
Move to smoother surface.
Drive belt wearing prematurely
Belt not tensioned properly
Tension belt, see
Wrong belt
Order new belt.
Cutter Head Adjustment Handle
will not turn
Threads are not greased
Clean and grease threads.
Cutters not spinning
Auxiliary hydraulics (25P471 & 25P472)
Reverse direction of flow on skid steer auxil-
iary hydraulics. If not available, swap
hydraulic hose ends.
Hydraulic motor
Replace hydraulic motor.
Bearing drive assembly
Replace drive assembly.
Drive belt (25P472 & 25P473)
Replace belt.
