freightliner COLUMBIA CL112 Maintenance Manual page 67

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11/27/95
Fig. 2, Direct-Acting Shock Absorber (front suspension
shown)
Rear Suspension Check
Freightliner Spring 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 visibly damaged parts is no as-
surance that the spring is safe. Failure to replace
a damaged spring assembly could cause an acci-
dent, resulting in serious personal injury or prop-
erty damage.
Replace worn, cracked, or damaged spring
brackets. Failure to do so could result in bracket
breakage, possibly leading to loss of vehicle con-
trol and resulting in personal injury or property
damage.
1. Inspect the forward and rear spring brackets and
equalizer brackets for wear, cracks, and other
damage. If any of these conditions exist, replace
the damaged bracket(s). See Group 32 of the
®
Columbia Workshop Manual for instructions.
2. Inspect the tandem-axle frame crossmember and
gussets for wear, cracks, and other damage. If
any of these conditions exist, replace the dam-
aged parts. See Group 32 of the Columbia
Workshop Manual for instructions.
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Failure to replace the suspension crossmember or
gussets if they are cracked, worn, or otherwise
damaged could result in damage to the vehicle
chassis.
3. Without detaching the torque arms, attempt to
move (by hand) each radius-rod end up, down,
in, and out. If there is any movement, replace the
torque arm. If a torque arm needs to be re-
placed, see Group 32 of the Columbia
shop Manual for instructions.
f320465
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
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.
05/27/93
®
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
NOTICE
Fig. 3, Torque Arm Bushings
Columbia Maintenance Manual, February 2010
Suspension
®
Work-
Fig. 3. Re-
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