freightliner CL112 2015, Maintenance Manual

Page: 97 / 180

33–00 Safety Precautions
Safety Precautions in this section apply to all
procedures within this group.
DANGER
When working on the vehicle, shut down the en-
gine, set the parking brake, and chock the tires.
Before working under the vehicle, always place
jack stands under the frame rails to ensure the
vehicle cannot drop. Failure to follow these steps
could result in serious personal injury or death.
33–01 Knuckle Pin Lubrication,
Meritor Axles
CAUTION
Use regulated pressure when lubricating the
knuckle assemblies, otherwise damage could re-
sult to the knuckle caps.
When lubricating knuckle pin bushings, do not raise
the front axle. Wipe the lube fittings clean, and apply
multipurpose chassis grease, NLGI Grade 1 (6% 12-
hydroxy lithium stearate grease) or NLGI Grade 2
(8% 12-hydroxy lithium stearate grease) until new
grease is seen at the bushing grease seal opposite
the fittings. The grease seal will accept grease pres-
sure without damage, and is designed to have
grease pumped out through it during lubrication.
Even if grease leaks out around the top, or bottom-
plate gasket, continue pumping until new grease is
seen at the bushing seal opposite the grease fitting.
See
Fig. 1 .
33–02 Tie Rod Inspection
Inspect the tie-rod ends as follows:
1. Shake the cross-tube. A loose fit, or movement
between the tapered shaft of the ball and the
cross-tube socket members indicates that the
tie-rod end assembly must be replaced.
2. The threaded portion of the tie-rod end assembly
must be inserted all the way into the cross-tube
split for adequate clamping. See
Fig. 2 . Replace
the components if this cannot be done. For in-
structions, refer to Group 33 of the Columbia®
Workshop Manual .
09/06/96 f320032a
A
1
1
A. Grease Exit
1.
Grease Fitting
Fig. 1, Meritor Knuckle Pin Lubrication
f320033a
1
OK
OK
02/27/2007
NOTE: Shown without pinch bolt to provide clarity.
1. Cross-Tube Split
Fig. 2, Tie-Rod End Adjustment
Front Axle
33
Columbia Maintenance Manual, July 2017
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