freightliner M2 Plus - Meritor Slack Adjuster Lubrication

synthetic polyurea grease, and do not require
lubrication for 3 years or 500,000 miles (800
000 km), whichever comes first. Extended-
maintenance camshaft bushings are lubricated
during the brake reline service interval. For
service and lubrication instructions, see Group
42 of the Business Class M2 Plus Workshop
Manual.
For camshaft brackets with grease fittings, use an
NLGI Grade 1 or Grade 2 multipurpose chassis
grease.
Lubricate the camshaft bushings through the grease
fitting on the camshaft bracket or the spider until new
grease flows from the inboard seal. See
Fig. 7.
WARNING
If grease leaks out under the camhead, the
camshaft bracket grease seal is worn or damaged.
See Group 42 of the Business Class M2 Plus
Workshop Manual for grease seal replacement
instructions. If this seal is not replaced, the brake
linings could become contaminated with grease.
The stopping distance of the vehicle will be
increased, which could result in personal injury or
property damage.
42–07 Meritor Slack Adjuster
Lubrication
IMPORTANT: Perform a brake inspection
following the instructions in this group before
lubricating the slack adjusters.
WARNING
Failure to lubricate slack adjusters could lead to
dragging brakes or a brake failure, resulting in
property damage, personal injury, or death.
NOTE: If equipped with an extended-
maintenance Q Plus
™
brake system, the slack
adjuster will not have a grease fitting. These
f420653a
1
2
3
4
5
6
7
8
10
9
10/27/93
1. 7/16-Inch Adjusting
Nut
2. Grease Fitting
3. Boot
4. Link
5. Brake Chamber Piston
Rod
6. Clevis
7. 1/2-Inch Clevis Pin
8. 1/4-Inch Clevis Pin
9. Grease Relief
Opening
10. Slack Adjuster Spline
Fig. 6, Gunite Automatic Slack Adjuster
f420011a10/07/2016
1
2
3
A
A. Grease Exit
1. Brake Chamber
2. Slack Adjuster
3. Non-Pressure-Relief Grease Fitting
Fig. 7, Camshaft Bracket Lubrication
Brakes 42
Business Class M2 Plus Maintenance Manual, 02/10/2023 42/7