Failure modes, Failure modes -3 – JLG 600SC_660SJC Service Manual User Manual
Page 33
SECTION 3 - TURNTABLE
3120898
– JLG Lift –
3-3
Clutch engaged actuator retracting
Controller fault - clutch disengaged and no actuator
movement
Failure Modes
Immediate Red Light
Action:
1.
Recycle power to determine if the problem is inter-
mittent.
2.
The input voltage must be greater than 10.5 Vdc.
3.
Check wiring for any damage and correct.
4.
Disconnect engine harness and actuator connnec-
tions.
5.
If problem reoccurs return unit.
Green and either Amber light followed by a red light
or
then
Action:
1.
Inspect and clean wiring connections.
2.
Examine throttle linkage for any damage or bent
components and correct.
3.
With linkage disconnected, check each potentiome-
ter for operation.
4.
Reconnect linkage and reset each potentiometer for
correct operation.
5.
If failure continues to occur, replace unit.