Kubota WSM OC60-E2 Workshop Manual page 69

OC60-E2, OC95-E2, WSM
Fuel Injection Pressure
1. Set the injection nozzle to a nozzle tester.
2. Measure the injection pressure.
3. If the measurement is not within the factory specifications,
adjust with the adjusting washer inside the nozzle holder.
Fuel injection pressure Factory spec.
(Reference)
Pressure change per 0.1 mm (0.039 in.) adjusting washer:
Approx. 981 kPa
10
142 psi
Valve Seat Tightness
1. Apply a pressure 12.7 to 13.9 MPa (130 to 142
to 2019 psi) lower than the fuel injection pressure.
2. After keeping the nozzle under this pressure for 10 seconds,
check to see if fuel leaks from the nozzle.
3. If any fuel leak is found, replace the nozzle piece.
S-17
ENGINE
13.9 to 14.7 MPa
142 to 150
2019 to 2133 psi
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, 1849
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