Peterbilt 579 - Page 254

PREVENTIVE MAINTENANCE SCHEDULE
5
PREVENTIVE MAINTENANCE (PM) INTERVALS
SYSTEM COMPONENT MAINTENANCE TASK
Recommended PM
Interval
I A B
C
D E
Drive Axle
(Meritor)
Axle Housing
Check the “cold” ll level at the differential carrier plug for a
pinion angle of less than 7 degrees, or at the axle bowl plug
for a pinion angle of greater than 7 degrees. Tighten the plug
to 35-50 Lb. ft. (47-68 N.m.)
X
Visually
inspect for damage or leaks.
X
Drain and
replace the lubricant.
See information on page 5-43
Lubricant lter
Change the lter.
X
Breather
Check the
operation. If the cap doesn’t rotate freely, replace.
X
Input shaft
and pinion shaft Check and adjust the endplay.
X
Axle shaft
Tighten the rear axle ange nuts to the specied torque value.
X
Interaxle differential
Check the operation.
X
Drive Axle
(SISU)
Axle Housing
Change the oil in the differential carrier and the hubs, and clean
the magnetic oil drain plugs.
X X
Check the
wheel bearing hubs and adjust if necessary.
X X
Visually
inspect for damage or leaks.
X X
Check the
oil level in the differential carrier and hubs.
X
Breather
Check the
breather for proper operation.
X
Lube Filter
Clean the suction lter for the optional pressure lubrication
system.
X
S-cam brakes
Overhaul the brakes; degrease all moving parts; check the
bushings and seals for wear.
X
5-18 Y53-6047–2C (04/13)