Yanmar EF-494T - Checking Pressures

3 ENGINE 3 ENGINE
EF494T TM 06/2011 edition
108
3.4.5 Checking pressures
Checking the lubrication oil
(1) Run the engine to warm it up and raise the
oil temperature.
(2) Remove the pressure switch and install the
oil tester.
(3) If the pressure is not working properly,
check the oil level.
Regulator valve pressure: 3-4 kgf/cm
2
(43-57 lb/sq.in)
(A) Oil switch
Fuel injection pressure
Detach the fuel injector and place it on the nozzle
tester. Operate the tester lever slowly and read
the pressure when the nozzle starts to spray fuel.
Injection starting pressure:
21.6 MPa (220 kgf/cm
2
, 3,124 lb/sq.in)