Rear And Middle Jacks - Lippert Components Ground Control 3.0 User Manual

Rear and Middle Jacks

1. Determine position and ground clearance requirements for
the rear and middle jacks. The rear jack brackets should be
mounted approximately 12" behind the rear tire and be aligned
with each other. The middle jack brackets should be mounted
approximately 12" in front of the front axle hanger and be
aligned with each other.
Note: When fully retracted, the rear and middle jacks should be
mounted to achieve a ground clearance equal to the approach
or departure angle or a minimum of 7" to enable maximum
level correction. Any additional ground clearance added to
the jack location will decrease the amount of level correction
available to the system.
2. Mark jack mounting bracket locations on the main frame rail.
3. Using a 5/16" drill bit, drill through the frame at the marked
positions.
4. Using the included self-tapping bolts, mount the brackets
to the frame. Tighten the bolts to no more than 75 ft-lbs of
torque. Four bolts will be installed on the outside of the main
frame rail (Fig. 8). Two bolts will be installed on the underside
of the main frame rail, up through the horizontal plate on the
backside of the jack mounting bracket (Fig. 9).
Note: The horizontal plate of the bracket will have four pre-
drilled holes, however, only two self-tapping bolts are
necessary for installation. The two holes chosen MUST be
directly across from each other.
5. Bolt the rear and middle jacks to the mounting brackets using
six bolts and nuts per jack. Tighten the bolts to 90 ft-lbs of
torque (Fig. 8).
6. Connect the wire harnesses to the leveling jack motor
wires and run the harnesses to the compartment where the
controller will be mounted.
Note: LCI recommends zip-tying the harnesses tight against
the rear jack motors to prevent damage to the harnesses.
lci1.com (574) 537-8900
Ground Control® 3.0
Aftermarket Manual
Jack Mounting Nut
Leveling Jack
Main Frame
Rail
Jack
Bracket
Bolt
Leveling Jack
Fig.9
6
CCD-0001307
Main Frame Rail
Jack Mounting
Bracket
Fig.8
Jack Mounting
Rev: 04.19.18
Jack
Bracket
Bolt
Jack
Mounting
Bolt
Horizontal
Plate
Bracket