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SYMPTOM POTENTIAL CAUSE REMEDY
Laser Grading Box does not raise
or lower.
Control Panel not turned on.
No hydraulic ow to Laser Grad-
ing Box.
Cables not connected correctly.
Electrical Problems
Hydraulic problems.
Apply power.
Ensure hydraulic control handle
of skid steer or tractor is in
correct position.
Ensure auxiliary hydraulics are
ON or in continuous ow
mode.
Refer to the automatic control
system documentation.
Move directional valve spool
manually using the overrides
on the end of the directional
valve.
Be sure to stay clear of any
moving parts of the Laser
Grading Box.
If the Laser Grading Box
moves, refer to Electrical
problems. If the Laser Grading
Box does not move, refer to
Hydraulic problems.
Refer to the automatic control
system documentation.
Conrm hydraulic ow through
the manifold and returning to
the power source through the
“T” hose.
Contact ATI Corporation for help
troubleshooting the hydraulic
manifold.
Laser Grading Box moves in
opposite direction.
Hydraulic ow reversed. Conrm the pressure is going in
the “P” port.
Verify control handle is moving in
desired direction.
TROUBLESHOOTING