freightliner MC - Camshaft Bracket Bushing Lubricating; Slack Adjuster Lubricating

5. Using a multipurpose, high-temperature grease
that resists water, steam, and alkali, lightly coat
the surfaces of the new O-ring and the dryer
base. Install the O-ring.
6. Thread the desiccant cartridge onto the dryer
base (turn clockwise). When the seal contacts
the base, tighten the cartridge one complete turn
more. Do not overtighten.
42–04 Camshaft Bracket
Bushing Lubricating
Pump grease into the camshaft bracket bushing until
it appears at the slack adjuster end of the bracket.
See
Fig. 6.
Use an NLGI Grade 1 or Grade 2 multipurpose chas-
sis grease. If grease leaks out from under the cam
head, the camshaft bracket grease seal is worn or
damaged. For grease seal replacement instructions,
see Group 42 of the Recreational Vehicle Chassis
Workshop Manual, or take the vehicle to an autho-
rized Freightliner dealer.
Camshaft brackets without grease fittings are fitted
with special seals and packed with extended-
lubrication-interval chassis grease. Grease them only
when the camshaft is disassembled for servicing.
42–05 Slack Adjuster
Lubricating
IMPORTANT: Perform Maintenance Operation
42–11
before lubricating the slack adjusters.
Automatic slack adjusters must be lubricated periodi-
cally to ensure proper brake operation.
WARNING
Failure to lubricate slack adjusters could lead to
dragging brakes or a brake failure, resulting in
property damage, personal injury, or death.
Haldex
NOTICE
Do not use moly-disulfide-loaded grease or oil.
Both the life and reliability of the slack adjuster
will be reduced if this type of grease is used.
Lubricate a Haldex automatic slack adjuster at the
grease fitting with any extreme-pressure NLGI Grade
1 or Grade 2 grease if the operating temperature is
f42129210/07/2016
1
2
3
1. Seal
2. O-Ring
3. Air Dryer Base
Fig. 5, Desiccant Cartridge Replacement
f420011a10/07/2016
1
2
3
A
A. Grease Exit
1. Brake Chamber
2. Slack Adjuster
3. Non-Pressure-Relief Grease Fitting
Fig. 6, Camshaft Bracket Bushing Lubrication
Brakes42
Recreational Vehicle Chassis Maintenance Manual, July 201842/6