Rack And Pinion Steering Gear Inspection - freightliner COLUMBIA CL112 Maintenance Manual

Steering
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1. Sector Shaft Grease Fitting
Fig. 2, TRW Steering Gear Lubrication
46–05 Drag Link Lubrication
1. Park the vehicle on a level surface, shut down
the engine, and set the parking brake. Chock the
tires.
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1. Grease Fitting at Pitman Arm
2. Grease Fitting at Axle Steering Arm
Fig. 3, Drag Link
2. Using a clean rag, wipe all dirt from both drag
link grease fittings. See
3. Using a pressure gun and NLGI Grade 2 (8%
12-hydroxy lithium stearate grease) or NLGI
Grade 1 (6% 12-hydroxy lithium stearate grease)
chassis grease, apply clean grease at the grease
fittings until old grease is forced out of the
socket.
Columbia Maintenance Manual, September 2015
f461071
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Fig. 3.
46–06 Rack and Pinion
Steering Gear Inspection
WARNING
All steering system components are critical for
safe operation of the vehicle. Failure to maintain
the steering system as specified may result in
loss of steering control, which could lead to per-
sonal injury and property damage.
Inspect the rack and pinion steering system as de-
scribed below, and repair or replace any components
that are worn or damaged.
ponents of the rack and pinion steering system.
1. Park the vehicle on a level surface, shut down
the engine, and set the parking brake. Chock the
tires.
2. Check the steering I-shaft U-joints for evidence
of looseness or binding. If any is found, replace
the I-shaft.
3. Check the steering I-shaft slip joint for evidence
of lateral movement, looseness, or binding. If any
is found, replace the I-shaft.
4. Jack up one axle end at a time, and move the
tire in and out by hand to check the tie rod ends
for free play. No free play is allowed. If the outer
tie rod ends are damaged or worn, replace them.
See Group 46 of the Columbia Workshop
Manual for replacement instructions.
5. Check the steering gear mounting bolts for secu-
rity.
6. Check that the outer tie rod castle nuts are tight,
and the cotter pins are properly installed.
IMPORTANT: Do not remove the bellows unless
they are damaged and require replacement, or
there is evidence of a loose inner tie rod or
there is hydraulic fluid leak.
7. Use a clean rag to remove all dirt and debris
from the bellows. Check the bellows for holes or
tears. If any are found, replace the bellows.
8. Check for evidence of hydraulic fluid leakage
from the bellows. If hydraulic fluid is found to be
leaking from within the bellows, replace the
steering gear.
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Figure 4 shows the com-
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