freightliner Custom Classic MT45 2022, Maintenance Manual

Page: 69 / 138

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 or motor, 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 Grease-Lubricated
Wheel Bearing Cleaning,
Inspecting, Repacking
and Adjusting, Front
Axle
See Group 33 of the Walk-In Van Chassis Workshop
Manual for grease-lubricated wheel bearing service
procedures, or take the vehicle to an authorized
Freightliner dealer.
33–02 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 .
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, Knuckle Pin Grease Exit Points, Detroit Axles
Front Axle
33
Walk-In Van Chassis Maintenance Manual, July 2015
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