Rev: 05.23.2017
Page 4
Ground Control 3.0 Service Manual
Basic Jack Operation
Operation
Unhitching From A Tow Vehicle
Landing gear (front jacks) can be operated any time the system is “ON”. By pushing the “FRONT” button (Fig.
1G), both front jacks can be extended. By pushing either the "FRONT" and “LEFT” (Fig. 1H) or "FRONT" and
“RIGHT” (Fig. 1I) 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. 1D), the front jacks can
be retracted together by pushing the “FRONT” button (Fig. 1G) or individually by pressing “LEFT” (Fig. 1H) or
“RIGHT” (Fig. 1I) buttons, while simultaneously pressing the “FRONT” button (Fig. 1G).
Middle jacks, if equipped, can not be extended or retracted in standard mode or manual mode. Middle jacks
can only be operated in the special jack code error mode. In order to operate the middle jacks press "LEFT"
(FIG. 1H) and "RIGHT" (FIG. 1I) 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. 1J) will extend both rear jacks at the same time. To extend individual
rear jacks, press the “LEFT” (Fig. 1H) or “RIGHT” (Fig. 1I) buttons while simultaneously pressing the “REAR”
button (Fig. 1J), 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. 1D), the rear jacks can be
retracted together by pushing the “REAR” button (Fig. 1J) or individually by pressing either the “LEFT” (Fig.
1H) or “RIGHT” (Fig. 1I) buttons, while simultaneously pressing the “REAR” button (Fig. 1J).
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 trailer.
NOTE:
Prior to unhitching from the tow vehicle, ensure the trailer is parked on a level surface and be sure
to chock the tires of the trailer.
1.
Extend the inner legs of both landing gear (front jacks) to within 4-5 inches of the ground by pulling on
the quick-release pins.
2.
Push “ON/OFF” (Fig. 1K). LCD Screen will light up and display “READY JACKS: UP” (Fig. 2A).
3.
Push the “UP” arrow (Fig. 1A) to scroll to “Drop Front Jacks” option on LCD screen.
4.
Red indicator lights (Fig. 2B) may come on, indicating the current disposition of the trailer. In this case,
the front and right sides of the trailer are low.
5.
Push “ENTER” (Fig. 1C). Both front jacks will go to ground and stop.
6.
Push the “FRONT” button (Fig. 1G) extending the front jacks to a sufficient height, which raises the
front of the trailer off of the tow vehicle’s 5th wheel hitch plate.
7.
Pull tow vehicle away and park at a safe distance.
Be sure to park the trailer on solid, level ground. Clear all jack landing locations of debris and obstructions.
Locations should also be free of depressions. When parking the trailer on extremely soft surfaces, utilize
load distribution pads under each jack. People and pets should be clear of trailer while operating leveling
system. Never lift the trailer completely off the ground. Lifting the trailer so the wheels are not touching the
ground will create an unstable and unsafe condition.