Peterbilt 579 Operator's Manual page 260

PREVENTIVE MAINTENANCE SCHEDULE
SYSTEM COMPONENT
Air Intake Air intake piping, mounting,
and charge air cooler
Air cleaner
Clutch Clutch hydraulic fluid
Clutch release bearing
Hoses
Cooling
Extended Life Coolant
5
(ELC)
Fan clutch
Solenoid valve
5-24
PREVENTIVE MAINTENANCE (PM) INTERVALS
MAINTENANCE TASK
Check the system for broken pipes, leaks, joint integrity,
cleanliness, and proper support (shown on page 5-99).
Replace the engine intake air cleaner element (shown on page
5-98).
Replace fluid and bleed system.
Lubricate.
Inspect and adjust when necessary (no adjustment required
for SOLO type clutches)
Check the radiator and heater hoses for leaks.
Check the freeze point (shown on page 5-72).
Check for contamination using test strips (shown on page 5-71).
Replace blank water filter if applicable.
Perform lab analysis (shown on page 5-71).
If lab analysis shows coolant is unsuitable for continued use:
Flush, drain, and refill (shown on page 5-71).
Add ELC Extender (shown on page 5-71).
Flush, drain, and refill with new coolant (shown on page 5-71).
Check for air leaks. (shown on page 5-97).
Check the fan drive bearings (turn the sheave in both directions
to check for worn hub bearings).
Check the fan drive for proper engagement and disengagement.
Y53-6047–2C
Recommended PM Interval
I A B C D
X
When required by air restriction
indicator or required by the engine
manufacturers operator manual.
X
X
X X
X
X
X
X
X X
X X
(04/13)
E
X
X