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ENGINE COOLING SYSTEM PREVENTIVE MAINTENANCE
– 180 – Y53-6033
Regional Haul (R05/10)
SYSTEM COMPONENT MAINTENANCE TASK
Recommended
PM Interval
IABCDE
Cooling Hoses Check the radiator and heater hoses for leaks. X X
Extended Life Coolant (ELC) Check the freeze point (see page 175
). X
Check for contamination using test strips (see page 176
). X
Replace blank water filter if applicable. X
Perform lab analysis (see page 176
).
If lab analysis shows coolant is unsuitable for continued use
Flush, drain, and refill (see page 175
).
Add ELC Extender (see page 176
).
X
Flush, drain, and refill with new coolant (see page 175
). X
Fan clutch housing Check for air leaks. X X
Surge Tank Fill Cap Check fill cap seal at each oil change. X X X X X X