
HN
®
FR Series
Preventive Maintenance
14
17730-285
3. If bar pin movement or looseness is detected in the equalizing beam end hub,
DO NOT
operate vehicle. Replace the equalizing beam end bushings and all connecting parts. Refer
to the Component Replacement Section of this publication.
4. Check and record torque values, as received, for each 1" bar pin fastener. Correct torque
values as required making sure all fasteners are tightened to:
■
At the
locknuts
to 450-600 foot pounds torque or
■
At the
bolt head
to 500-650 foot pounds
5. Recheck equalizing beam end connections for signs of looseness.
■
Inspect alignment shims in equalizing beam end for looseness. Lightly tap on the
alignment shims to see if they can be moved.
■
Inspect equalizing beam end connection for signs of excessive wear or looseness.
NOTE
An equalizing beam end connection, which is visibly cleaner than the other connections, may
indicate a loose connection.
6. If bar pin looseness is still detected in the equalizing beam end hub,
DO NOT
operate the
vehicle. One or more components will require replacement, see Component Replacement
Section of this publication.
AXLE BRACKETS
The axle brackets are furnished and welded into position by the vehicle or axle manufacturer.
■
When inspecting the equalizing beam end connection
also inspect the axle brackets for
damage or cracks, see Figure 6-3. Measure the dimension as shown in Figure 6-3, any axle
bracket that is found damaged or cracked must be repaired or replaced. Consult the vehicle
manufacturer for inspection, component repair and replacement instructions.
■
When an equalizing beam is removed for repair, or an inspection of the equalizing
beam end connection reveals movement,
measure the distance between the axle bracket
legs for correct width. Refer to Figure 6-4 for measurement location and dimensions. An
axle bracket outside of the measurement range must be repaired or replaced. Consult the
vehicle manufacturer for inspection, component repair and replacement instructions.
FIGURE 6-3
FIGURE 6-4
8.5"
(216 mm)
2.313" (58.74 mm)
2.263" (57.48 mm)
Axle Bracket* Leg Dimensions
Axle Bracket* Leg
Look for craks
in these locations
Axle
Typical
Crack
*Typical axle bracket shown
Pro Gear and Transmission • 906 W. Gore St. Orlando, FL 32805 • 1 (877) 776-4600 / (407) 872-1901 • [email protected]