freightliner Custom Classic MT45 2022, Руководство по обслуживанию

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Meritor Axles
Hold a pressure gun on each fitting until fresh grease
appears. See
Fig. 3 . This will ensure that all of the
old contaminated grease has been forced out. It is
not necessary to exceed 4000 psi (27 560 kPa). The
best distribution of new lubricant and the best purg-
ing of old lubricant occurs when about 4000 psi (27
560 kPa) pressure is applied at the grease gun
nozzle. Using a 40 to 1 booster, the air should be
limited to 100 psi (689 kPa); using a 50 to 1 booster,
the air should be limited to 80 psi (551 kPa). Higher
or lower pressures are not recommended.
When lubricating Meritor knuckle pin bushings initially
(5000 miles [8000 km]) , raise the front axle until the
front tires are off of the ground. Wipe the lube fittings
clean, and slowly feed multipurpose chassis grease
(NLGI grade 1 or 2) into each bushing area while
turning the wheels from extreme right to left and
back again (lock-to-lock). This will eliminate small air
pockets and improve grease distribution.
Lower the tires to the ground, and regrease both top
and bottom bushings until new grease is seen at the
seal on the bushing opposite the fittings.
NOTE: The grease seal will accept the grease
pressure without damaging the seal, and is de-
signed to have grease pumped out through it
during lubrication. Even if grease leaks out
around the top or bottom plate, continue pump-
ing until new grease is seen at the seal on the
bushing opposite the grease fitting.
When lubricating knuckle pin bushings at indicated
maintenance intervals , do not raise the front axle.
Wipe the lube fittings clean, and apply multipurpose
chassis grease until new grease is seen at the
grease seal on the bushing opposite the fittings.
33–03 Tie-Rod End Lubricating
and Inspecting
NOTICE
If a power washer is used to clean the chassis in
the area of the tie-rod ends, you must adjust the
tie-rod end inspection and lubrication intervals. If
the vehicle is power washed often, you must in-
spect and lubricate the tie-rod ends more fre-
quently.
IMPORTANT: DOT roadside tie-rod assembly
replacement criteria specifies that if tie-rod end-
play is 1/8 inch (3 mm) or greater, measured on
the road, the vehicle must be taken out of ser-
vice immediately. If less than 1/8 inch (3 mm),
the vehicle does not have to be taken out of
service but a major out-of-service inspection
and maintenance must be scheduled as soon
as possible.
NOTE: Inspect the tie-rod end boots for cracks,
wear, or damage. If a boot is cracked, worn, or
damaged, replace the tie-rod assembly.
1. Wipe the tie-rod end grease fittings clean, then
(for Detroit or Meritor axles) pump multipurpose
chassis grease (NLGI grade 1 or 2) to the tie-rod
ends until all used grease is forced out and new
grease appears at the ball stud neck.
2. Inspect the tie-rod ends, as follows.
2.1 Shake the cross-tube. Movement or
looseness between the tapered shaft of
the ball and the cross-tube socket mem-
bers means that the tie-rod end assembly
must be replaced.
09/06/96 f320032a
A
1
1
Pump lubricant into each grease fitting until fresh grease
comes out at A.
1. Grease Fitting
Fig. 3, Grease Fittings, Meritor Axle
Front Axle
33
Walk-In Van Chassis Maintenance Manual, July 2015
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