Hellwig Air 6108 - Manual (Page 4)

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6.
Driver Side: Before installing air spring assembly, remove 8mm bolt in location shown in
figure 6a. This bolt will be replaced with a M8-1.25xX40 bolt and washer kit after installing
air spring assembly. To install air spring assembly, insert between frame and axle as shown
with the axle bracket resting on cast bump stop tongue—note fit of brackets to frame and
axle. Stud on frame bracket will install in hole where bump stops were attached. Fasten stud
on frame bracket to frame rail with 3/8” lock nut and washer. Install 3/4” bolt, washer and
nut through hole in frame rail. No washer will be used between the head of the 3/4” bolt and
the inside of the frame rail on the driver side. After aligning assembly to rail, Tighten M8-
1.25 bolt to 15 ft-lb. Then tighten nut on stud to 20 ft-lb. Finally tighten 3/4” bolt to 100-
125 ft-lb. If bolt is used by fifth wheel hitch mounting brackets, tighten bolt to hitch manu-
facturer’s specifications.
Special Note: If vehicle has factory installed fifth wheel hitch,
do not install 3/4” bolts. See step 7 for instructions.
Passenger Side : To install air spring assembly, insert between frame and axle as shown with
the axle bracket resting on cast bump stop tongue -note fit of brackets to frame and axle. Stud
on frame bracket will install in hole where bump stops were attached. Fasten stud on frame
bracket to frame rail with 3/8” lock nut and washer. Install 3/4” bolt, washer and nut through
hole in frame rail. Then tighten nut on stud to 20 ft-lb. Finally tighten 3/4” bolt to 100-125
ft-lb. If bolt is used by fifth wheel hitch mounting brackets, tighten bolt to hitch manufac-
turer’s specifications.
Special Note: If vehicle has factory installed fifth wheel hitch, do
not install 3/4” bolts. See step 7 for instructions.
6108 ( R-6108) 03/01/12
6a 6b 6c
Remove 8mm bolt before
installing air spring as-
sembly. Replace with
M8-1.25xX40 bolt and
washer included in kit.
Driver Side
Passenger Side
Driver Side
Frame bracket will rest
on cast bump stop. 3/4” bolt without
washer on inside of
frame.
3/4” bolt