Peterbilt 579 - Page 259

PREVENTIVE MAINTENANCE SCHEDULE
PREVENTIVE MAINTENANCE (PM) INTERVALS
SYSTEM COMPONENT MAINTENANCE TASK
Recommended PM
Interval
I A B
C
D E
Main and
auxiliary
transmission
Main and auxiliary
transmission and transfer
case
Inspect for visible damage, signs of overheating, and leaks.
X X
Check the
drain plugs for tightness.
X
Mounting Brackets
and
Fasteners
Check the condition of the fasteners and their torque. Tighten
to the specied torque value as required.
X
Oil cooler
Clean the ns (air-to-oil type) and body. Check the hose
condition and for leaks; replace as required.
X
Main and
aux. transmission
Check the oil level; rell as required.
X
Main and
auxiliary
transmission (ON
HIGHWAY)
Drain lubricant while warm. Flush each unit with clean ushing
oil.
500,000 miles/ 800,000 km
Main and
auxiliary
transmission (OFF
HIGHWAY)
Drain lubricant while warm. Flush each unit with clean ushing
oil.
X X
Auxiliary
transmission
Cotta Transfer Case
TR2205
Fabco Transfer Case
TC142/TC143/TC170/
TC270
Marmon-Harrington
Transfer Case
MVG2000/MVG2000SD
Inspect: Check oil level; inspect for leaks and any visible
damage.
X
Initial oil
change: Drain oil while warm; ush case with gear
oil-compatible uid; clean magnetic drain plug; rell. Do not
ush the case with any solvent.
X X
Change oil.
X
5
(04/13) Y53-6047–2C 5-23