11921 Slauson Ave.  Santa Fe Springs, CA.  90670  (800) 227-4116  FAX (888) 771-7713
18
PERIODIC MAINTENANCE
NOTE: Before doing the following procedure, make sure vehicle is parked on level 
ground.
PLATFORM ADJUSTMENT
“A” 
(TABLE 18-1)
PLATFORM EDGE 
ABOVE BED LEVEL 
FIG. 18-2
SHACKLES DO NOT TOUCH GROUND 
FIG. 18-3A
PLATFORM & SHACKLES 
TOUCH GROUND 
FIG. 18-1
2. Make sure platform is still at ground level. If  
the shackle is not touching the ground, mea-
sure and compare distance “A” (FIG. 18-3A) 
with TABLE 18-1 to determine the correct 
shim. Next, mark position on shackle (FIG. 
18-3B). 
1. Make sure platform is at ground level. Unfold 
the platform and fl ipover. As the platform fi rst 
touches the ground, shackles and tip of fl ipover 
must touch the ground at the same time (FIG. 
18-1). If the shackles and the tip of fl ipover 
touch the ground at the same time, raise plat-
form to bed height. Outboard edge on top of 
fl ipover should be above bed level (FIG. 18-2). 
If indications are correct in both cases (FIGS. 
18-1 & 18-2), Liftgate is installed correctly and 
no adjustment is needed. If indications are 
incorrect, continue with instruction 2.
LEVEL LINE
TIP OF 
FLIPOVER
OUTBOARD
EDGE
RAISE TIP OF 
FLIPOVER
THIS DISTANCE “A”
REQUIRED SHIM 
THICKNESS
WELD 
SIZE “W”
9/16” 1/16” 1/16”
1-1/4” 1/8” 1/8”
1-15/16” 3/16” 3/16”
2-5/8” 1/4” 1/4”
NOTE: If tip of fl ipover touches fi rst 
(FIG. 18-3A), do instructions 2 
and 3. If the shackle touches 
fi rst (see FIG. 20-1), skip 2 and 
3 and do instructions 4 and 5. 
SHIMS TO RAISE TIP OF FLIPOVER
TABLE 18-1
MARKING  SHIM          
POSITION  
FIG. 18-3B
1/4”
SHACKLE
PLATFORM STOP
MARK HERE