System Operational Checks
3 LUBRICATION SYSTEM CHECKS
OIL LEVEL CHECK
YES: Add oil if low.
Change oil and filter if too
high. Go to Group
9000-04. Check oil level
after a few hours
operation to determine if
a problem exists. Go to
NO: If engine oil level
indicator does not come
ON, go to Monitor
Diagnostic Information in
Section 9015-15. If oil
level is OK, go to next
A--Pre-Operation Level Check Switch
B--Engine Oil Level Indicator
Remove dipstick and check oil level.
Is oil above "full" mark or below "add" mark on dipstick?
If oil level is high, check for fuel or anti-freeze. Drain a small amount of engine oil into
a clear container. Watch oil in container to see if anti-freeze or water accumulates at
If oil level is low, check for oil leaks or oil seal problems in engine.
Adjust oil level to between "add" and "full" marks on dipstick.
Key switch ON.
Push pre-operation level check switch (A).
Is green light for engine oil level indicator (B) ON?