Thursday, July 3, 2008
3.15 400S THROTTLE CHECKS AND ADJUSTMENTS
General
The throttle control system on the Deutz engine includes the positional controller and the actuator. Four LEDs are incorporated in the controller. They are as follows:• Red - failure: signals a problem with the system -
needs service or adjustment
• Green - clutch engaged; operation normal while system is powered.
• Amber - motor extend
• Amber - motor retract
The controller is designed so that when the system voltage reaches 10.5 volts, the actuator clutch will be released and the motor drive turned off in order to prevent unpredictable operation from occurring. When a failure condition occurs (i.e. position time-out) the controller will release the clutch and turn off the actuator motor. This will prevent unnecessary motor wear.
Note: Never run fuel tank dry. Diesel engines cannot be restarted after running out of fuel until fuel system has been air-vented or bled of air. See Deutz Instruction Manual for procedure.
1. Power the ignition switch at the ground control panel. Set the idle rpm.
2. Supply 12 volts of power to the white wire on the controller. Set the mid engine rpm.
3. Supply 12 volts of power to the white & green wires on the controller. Set the high engine rpm.
Note: Actuator rod travel must stop slightly before lever makes contact with throttle lever stop. Failure to do so will burn out actuator.
Controller Status
Clutch engaged no actuator movement
Clutch engaged actuator extending
Clutch engaged actuator retracting
Controller Fault - clutch disengaged and no actuator movement
Immediate Red Light
Action:
1. Recycle power to determine if the problem is intermittent.
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 connnections.
5. If problem reoccurs return unit.
Green and either Amber light followed by a red light
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 potentiometer for operation.
4. Reconnect linkage and reset each potentiometer for correct operation.
5. If failure continues to occur, replace unit.
Only green light on and no actuator movement
Action:
1. Adjust trim potentiometers.
2. If problem continues, replace unit.
To purchase this throttle actuator click here
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Copyright © 2008 JLG Industries -Manual 3120788
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