4. Inspect the weld seams between the torque arm
tube and the shorter bushing tubes. If there are
cracks, replace the torque arm. Do not weld the
torque arm for any reason.
5. Inspect the rubber bushing ends. See
Fig. 1. Re-
place the torque arm for any of the following rea-
sons:
• if there are gaps between the rubber bush-
ing and the pin or outer steel sleeve;
• if either bushing end contacts a torque arm
pin mounting bolt;
• if there are cracks in the bushing;
• if part of the rubber bushing extends be-
yond the outer circumference of the outer
bushing sleeve.
6. Block up the frame enough to take chassis
weight off the springs. Attempt to move the
equalizer up and down, using a pry bar between
the top of the equalizer and top of the equalizer
bracket; apply hand pressure only. See
Fig. 2.If
movement at the center of the equalizer exceeds
1/8 inch (3 mm), replace the equalizer bushings.
See Group 32 of the 108SD and 114SD Work-
shop Manual for instructions.
7. With the vehicle unloaded, attempt to move the
equalizer side to side, using a pry bar between
the equalizer and frame rail. Apply hand pressure
only. See
Fig. 3. If clearance between the equal-
izer assembly and any frame component or fas-
tener is less than 1/8 inch (3 mm), replace the
equalizer bushings. See Group 32 of the 108SD
and 114SD Workshop Manual for instructions.
Freightliner AirLiner Suspension
WARNING
Do not replace individual leaves of a damaged leaf
spring assembly; replace the complete spring as-
sembly. Visible damage (cracks or breaks) to one
leaf causes hidden damage to other leaves. Re-
placement of only the visibly damaged part(s) is
no assurance that the spring is safe. On front
spring assemblies, if cracks or breaks exist in the
f320021a
05/27/93
Fig. 1, Torque Arm Bushings
f320022a
05/27/93
1
2
3
A
A. Measure the change in gap at this point.
1. Equalizer Bracket
2. Equalizer
3. Pry Bar
Fig. 2, Side View of the Equalizer
f320023a
05/27/93
1
2
3
4
5
A
A. 1/8" (3 mm) Clearance
1. Frame Fasteners
2. Frame Rail
3. Pry Bar
4. Equalizer
5. Equalizer Bracket
Fig. 3, Top View of the Equalizer
Suspension32
108SD and 114SD Maintenance Manual, September 201532/2
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