Table 2-1. Preventive Maintenance Checks and Services (All Models) (Cont)
Oil pressure will increase when engine speed increases and will
decrease when engine speed decreases.
Engine oil pressure will be lower when engine is at maximum operating
temperature (WATER TEMP gage reads 230F (110C).
b. Check that engine OIL
PRESS gage indicates
between 15-80 psi
b. Gage indicates
less than 15 psi
Perform check (13) only if vehicle is equipped with tachometer.
Check that tachometer
indicates between 750-850
rpm while engine is at idle.
If tachometer indicates
engine rpm outside of 750-
850 rpm range, notify Unit