freightliner MC User Manual

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 Lubricating
NOTICE
Use regulated pressure when lubricating the
knuckle assemblies, otherwise damage could re-
sult to the knuckle caps.
Detroit
™
Axles
On the front axle, grease fittings are on the top and
bottom caps of each knuckle.
1. Park the vehicle on a level surface, shut down
the engine, and set the parking brake. Chock the
tires. When lubricating upper and lower knuckle
assemblies, do not raise the front axle.
2. Wipe the grease fittings clean.
3. 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 junctions
of the axle beam and knuckles. For locations of
grease fittings, see
Fig. 1; for grease exit points,
see
Fig. 2.
Meritor Axles
Hold a high-pressure grease 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.
When lubricating Meritor axle knuckle pin bushings at
the initial maintenance (IM) interval, first wipe the
lube fittings clean. Then, slowly feed multipurpose
chassis grease (NLGI grade 1 or 2) into each bush-
ing area while turning the wheels from extreme right
to left, and back again (lock-to-lock). This will elimi-
nate small air pockets and improve grease distribu-
tion.
06/07/2012 f330272
A
B
1
1
A Upper View, LH Side B Lower View, LH Side
1. Grease Fitting
Fig. 1, Grease Fittings, Detroit Axles
09/13/2012 f330275
Fig. 2, Kingpin Grease Exit Points, Detroit Axles
Front Axle 33
Recreational Vehicle Chassis Maintenance Manual, June 2015 33/1

freightliner MC Specifications

General

Brand	freightliner
Model	MC
Category	Automobile
Language	English