PREVENTIVE MAINTENANCE SCHEDULE
5
PREVENTIVE MAINTENANCE (PM) INTERVALS
SYSTEM COMPONENT MAINTENANCE TASK
Recommended PM
Interval
I A B
C
D E
Drum Brakes
(All)
Slack adjusters Check the push rod travel and check the control arm for cracks.
Adjust at reline (shown on page 5-60).
X
Lubricate (NLGI
#2 grease).
X
Brake camshaft
bearing Check for excessive camshaft paly in the axial and radial
directions. Max allowable play is 0.003 in. 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 air
system
Check air
lines and ttings for leaks (shown on page 5-48).
Adjust routing as required to prevent chang. Check tank
mounting and condition.
X
Clean or
replace the inline lters.
X
Brake lining
Inspect; replace as required. X
5-20 Y53-6047–2C (04/13)
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