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. 6.
WARNING
If grease leaks out under the camhead, the cam-
shaft bracket grease seal is worn or damaged. See
Group 42 of the Century Class Trucks W orkshop
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 dam-
age.
42–08 Meritor Slack Adjuster
Lubrication
IMPORTANT: Perform MOP 42–10 before lubri-
cating the slack adjusters.
NOTE: If equipped with an extended-
maintenance Q Plus
™
brake system, the slack
adjuster will not have a grease fitting. These
slack adjusters use a special NLGI Grade syn-
thetic polyurea grease and do not require lubri-
cation for 3 years or 500,000 miles (800 000
km), whichever comes first. The extended-
maintenance slack adjusters are lubricated dur-
ing the brake reline service interval. For service
and lubrication instructions, see Group 42 of
the Century Class Trucks Workshop Manual.
For slack adjusters with grease fittings, and for oper-
ating temperatures above –40°F (–40°C), use a
NLGI Grade 1 clay-base grease or a NLGI Grade 1
or 2 lithium-base grease.
For slack adjusters with grease fittings, and for oper-
ating temperatures below –40°F (–40°C) and above
–65°F (–54°C), use a NLGI Grade 2 synthetic oil,
clay-base grease.
Lubricate the slack adjuster at the grease fitting until
grease is forced past the pressure-relief capscrew, or
past the gear splines around the inboard snap ring.
See
Fig. 9.
42–09 Bendix E–6 Foot Contol
Valve Inspection and
Lubrication
1. Remove the foot control valve from the vehicle.
See Section 42.03, Subject 110 of the Century
Class Trucks Workshop Manual for instructions.
2. Remove the roll pin from the brake pedal pivot
pin. See
Fig. 10.
3. Remove the brake pedal pivot pin.
4. Remove the brake pedal.
5. Check the brake pedal mounting plate adapter
for signs of wear or cracks at the bosses (the
area from which the pivot pin was removed). Re-
place it if necessary.
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. ½-Inch Clevis Pin
8. 1/4-Inch Clevis Pin
9. Grease-Relief
Opening
10. Slack Adjuster Spline
Fig. 8, Gunite Automatic Slack Adjuster
Brakes42
Century Class Trucks Maintenance Manual, January 201642/8
To Next Page
Loading...
