Troubleshooting - ATI Corporation Level Best Grader Blade Operator's & Parts Manual

SYMPTOM
Grader Blade has trouble staying on
grade.
Grader Blade does not raise or lower.

TROUBLESHOOTING

POTENTIAL CAUSE
Rotating Laser out of range.
Laser beam being reflected.
Multiple laser beams.
Laser deadband set too narrow.
Travel speed is too fast for grade toler-
ance.
Hydraulic response too quick.
Control Panel not turned on.
No hydraulic flow to Grader Blade.
Cables not connected correctly.
Electrical Problems
Hydraulic Problems
1.13
REMEDY
Ensure Laser Receiver is within
specified operating range of Rotating
Laser.
Ensure Rotating Laser's light is not
reflecting off other surfaces (win-
dows, windshields, mirrors, etc.)
causing multiple readings by the
Laser Receiver.
Ensure that there are no other lasers
operating on the job site or nearby.
Ensure the Deadband (Accuracy) setting
is appropriate for rough grading.
Slow down.
Decrease the Valve Speed setting.
Confirm the pressure is going in the "P"
port.
Push the Power switch.
Ensure hydraulic flow of loader is in
correct direction.
Ensure auxiliary hydraulics are ON or in
continuous flow mode.
Check Valve cable, valve and valve
solenoids for visible damage.
Be sure to stay clear of any
moving parts of the Grader
Blade.
If the Grader Blade moves, refer to Elec-
trical problems. If the Grader Blade
does not move, refer to Hydraulic
problems.
Check Valve cable, valve and valve
solenoids for visible damage.
Use an Ohm meter to check cable for
continuity.
Confirm hydraulic flow through the
manifold and returning to the power
source through the "T" hose.
Contact ATI Corporation for help
troubleshooting the hydraulic
manifold.