220
TROUBLESHOOTING
33) Inspect Oil Pressure
Oil pressure does not rise if oil supply is not normal due to causes such as oil strainer blockage.
1. Measure oil pressure with an oil pressure gauge attached to the mounting hole (PT 1/8) of the engine oil pres-
sure switch during operation.
2. Check the engine oil level with an oil level gauge. If the level is low (close to the level "L"), add 0.53 ~ 0.79 gal
(2 ~ 3 L) of engine oil.
34) Inspect Engine Oil Pressure Switch
Pressure standard value
21.8 ~ 72.5 psi (150 ~ 500 kPa)
In case of 1,800 rpm (min
-1
)
[ 8 TON ] [ 15 TON ]
Engine oil pressure switch
Engine oil pressure switch
1. Check for contact failure due to loosening, at the
engine oil pressure switch terminal or other
causes.
2. Inspect the engine oil pressure switch to see if it is
functioning normally by checking electric continuity
between the terminals.
Engine oil pressure switch operation
Engine
Under shutdown
condition
There is continuity
At operation There is no continuity
[ 8 TON ] [ 15 TON ]
Engine oil pressure switch
Engine oil pressure switch
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