Lippert Components Ground Control 3.0 OEM - Manual (Page 12)

Rev: 01.30.2015 Page 12
Ground Control 3.0 OEM Installation Manual
Basic Jack Operation
operation
Landing gear jacks can be operated any time the system is “ON”. By pushing the “FRONT” button (Fig. 13G), both
front or landing gear jacks can be extended. By pushing either the "FRONT" and “LEFT” (Fig. 13H) or "FRONT" and
“RIGHT” (Fig. 13I) buttons, the individual front jacks can be extended. If the touch pad is put in the retract mode,
indicated by the orange illuminated LED next to the “RETRACT” button (Fig. 13D), the front jacks can be retracted
together by pushing the “FRONT” button (Fig. 13G) or individually by pressing “LEFT” (Fig. 13H) or “RIGHT” (Fig. 13I)
buttons, while simultaneously pressing the “FRONT” button (Fig. 13G).
NoTE: Middle jacks can only be operated in error mode. In order to engage middle jacks, press "LEFT" and
"RIGHT" buttons simultaneously.
The rear jacks can only be extended when the touch pad is in the manual mode. Once system is in manual mode,
pressing the “REAR” button (Fig. 13J) will extend both rear jacks at the same time. To extend individual rear jacks,
press the “LEFT” (Fig. 13H) or “RIGHT” (Fig. 13I) buttons while simultaneously pressing the “REAR” button (Fig. 13J),
depending on which jack needs to be operated. If the touch pad is put in the retract mode, indicated by the orange
illuminated LED next to the “RETRACT” button (Fig. 13D), the rear jacks can be retracted together by pushing the
“REAR” button (Fig. 13J) or individually by pressing either the “LEFT” (Fig. 13H) or “RIGHT” (Fig. 13I) buttons, while
simultaneously pressing the “REAR” button (Fig. 13J).
NoTE: If the rear jacks will not operate individually using the method described above, but they operate
properly when Auto Level is performed, the Twist Prevention Protection system has locked out the
operation to prevent damage to the frame of the unit.
Homing Jacks
1. Introduce an error - disconnect one of the hall effect sensor wires at the controller.
2. Attempt to operate the jack that is associated with the sensor wire that was disconnected. The touch
pad screen will display an error for that jack.
3. Reconnect the hall effect sensor wire. Manually extend all jacks down a minimum of 6 inches.
4. Press and hold the retract button until all of the jacks begin to retract. The jacks will retract until they
reach the hard current limit.
5. The jacks are now “homed.”
NoTE: If the jacks do not retract, an error should display on the touch pad screen. This is typically caused by
wiring interruption.
NoTE: In order to "home" jacks, middle jacks MUST also be extended. Refer to Basic Jack Operation for
middle jack operation.