58
11921 Slauson Ave.  Santa Fe Springs, CA.  90670  (800) 227-4116  FAX (888) 771-7713
STEP 9 - GROUND PUMP TO VEHICLE FRAME
FIG. 58-1
GROUND 
CABLE
PUMP 
BOX
FIG. 58-1A
GROUND 
STUD
NOTE: Make sure the Liftgate power unit, all batteries on the vehicle for power 
unit, and taillights on Liftgate are connected correctly to a common ground. 
2. Extend the ground cable to reach vehicle frame (FIG. 58-1B) without putting ten-
sion on cable (after connection). Connect to an existing grounding point if available.
4. Bolt ground cable terminal lug (FIG. 58-1A) to vehicle frame as shown in FIG. 58-1B.
3. If necessary, drill a 11/32” (0.343”) hole in vehicle frame for bolting the ground 
cable terminal lug (FIG. 58-1B).
NUT
FIG. 58-1B
TERMINAL LUG 
(GROUND CABLE)
 5/16” FLAT 
WASHER
VEHICLE CHASSIS
(TRUCK FRAME SHOWN)
5/16"-18 X 1" LG. 
CAP SCREW  
BARE 
METAL
1. Bolt ground cable to the ground stud on pump box (FIG. 58-1).
NOTE: If there is an existing grounding point on truck frame, use it to connect 
            ground cable and skip the step for drilling a hole. 
LOCK 
NUT
 FLAT 
WASHER
NOTE:  • Before connecting ground cable to frame, clean connection point on the 
    frame down to bare metal. 
  • After connecting ground cable, MAXON recommends sealing the ground 
    connection with galvanized coating for galvanized surfaces, or black paint 
    for painted surfaces.