PREVENTIVE MAINTENANCE SCHEDULE PART 8: MAINTENANCE AND SERVICE
– 126 – Y53-6007 (R10/06)
Drum
Brakes
(All)
Slack adjusters Check the push rod travel and check the control arm for cracks. Adjust at
reline (see
page 152).
X
Slack adjusters Lubricate (NLGI #2 grease). X
Brake camshaft bearing Lubricate (NLGI #2 grease). X
Brake treadle valve Clean the area around the treadle, boot, and mounting plate. Check the
pivot and mounting plate for integrity. Check the plunger boot for cracks.
Lubricate roller pin, pivot pin, and plunger (NLGI #2 grease).
X
Brake treadle valve Rebuild through an authorized Peterbilt service facility. X
Brake air system Check air lines and fittings for leaks (see page 152). Adjust routing as
required to reduce chafing. Check tank mounting and condition.
X
Brake air system Clean or replace the inline filters. X
Brake lining Inspect; replace as required. X
Table 2 Preventative Maintenance Schedule (Continued)
SYSTEM COMPONENT MAINTENANCE TASK
Recommended
PM Interval
I ABCDE
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