Komatsu Galeo BR380JG-1E0 Shop Manual page 275

30 Testing and adjusting
2. Measuring pressure in fuel return circuit
1) Open the engine hood and remove fuel
pressure pickup plug (2) from the fuel
return block.
2) Install nipple [3] of hydraulic tester G1 and
nipple [1] and connect them to hydraulic
tester G3.
a Nipple [3]:
3) Run the engine at low idle and measure
the pressure in the fuel return circuit.
a If the pressure in the fuel return circuit
is in the following range, it is normal.
At low idle
During cranking
k
If the engine cannot be started, you
may measure the fuel pressure
while rotating the engine with the
starting motor. Do not rotate for
more than 20 seconds continu-
ously, however, for protection of
the starting motor.
BR380JG-1E0
790-301-1181, 07002-11223
Max. 0.02 MPa
{Max. 0.19 kg/cm
4) After finishing measurement, remove the
measuring tools and return the removed
parts.
3
2
}
SEN02303-00
Fuel pressure pickup plug:
24 ± 4 Nm {2.4 ± 0.4 kgm}
17