ProGear Hendrickson HN FR Series Service Manual page 32

NOTE
NOTE
NOTE
SERVICE HINT
17730-285
Pro Gear and Transmission • 906 W. Gore St. Orlando, FL 32805 • 1 (877) 776-4600 / (407) 872-1901 • parts@eprogear.com
Prior to disassembly of the equalizing
beam bar pin fasteners, note the
orientation of the bar pin alignment
shims, see Figure 8-13. It is required
that the bar pin alignment shims are
installed in the same orientation and
location as removed to preserve the
existing vehicle alignment. Improper
vehicle alignment can increase tire
wear.
6. Note the orientation and location
of the bar pin shims, see Figure
8-13.
THE WEIGHT OF THE EQUALIZING BEAM
ASSEMBLY IS APPROXIMATELY 155
POUNDS. PRIOR TO REMOVING THE BAR
PIN BOLTS FROM THE EQUALIZING BEAM,
SUPPORT THE END OF THE EQUALIZING
BEAM TO PREVENT FROM DROPPING.
CARE SHOULD BE TAKEN AT REMOVAL AND INSTALLATION TO PREVENT PERSONAL INJURY OR
DAMAGE TO COMPONENTS.
7. Support the center of the equalizing beam being serviced.
8. Remove and discard bar pin fasteners that connect the end bushing bar pin to the axle
bracket.
Prior to removing both equalizing beams, support the pinion of each drive axle. Failure to do so
can result in personal injury or allow the axles to shift making reassembly more difficult.
9. Lower the beam support and remove the equalizing beam from the axle brackets.
ASSEMBLY
All equalizing beams are manufactured with the bar pin flats perpendicular to the equalizing
beam's axis. It is not necessary to adjust the bar pins to the same pinion angle as prior to
disassembly. The rubber in the bushings will gradually allow the bar pins to adapt to the pinion
angles of the drive axles. This is a normal function of the bar pin bushings.
Installing the front bar pins prior to the rear bar pins will ease in the installation of the equalizing
beam.
THE WEIGHT OF THE EQUALIZING BEAM ASSEMBLY IS APPROXIMATELY 155 POUNDS. CARE
SHOULD BE TAKEN AT REMOVAL AND INSTALLATION TO PREVENT PERSONAL INJURY OR DAMAGE TO
COMPONENTS.
1. Mount the equalizing beam into the FRONT drive axle brackets. DO NOT install the align-
ment shims at this time.
2. Slide a ¾" bolt through both front axle brackets and the bar pin holes to temporarily support
the beams.
3. Lift the REAR of the beam until the front bar pin flats are parallel to the front drive axle
bracket legs, see Figure 8-14.
FIGURE 8-13
Axle Bracket
Supplied by vehicle
manufacturer
1" Bolt
Tightening Torque
500-650 ft. lbs.
1" Washer
Bar Pin
Bar Pin
Alignment
Shim
31
HN ® FR Series
1" Locknut
Tightening Torque
450-600 ft. lbs.
Component Replacement