OC60-E2, OC95-E2, WSM
ENGINE
S-16
Fuel Tightness of Delivery Valve
1. In the same way as to check the pump element fuel tightness,
turn the engine ten times or more with the starter so that the
pressure is increased to specified pressure.
2. Set the plunger at the bottom dead center to reduce the
delivery chamber pressure to zero.
3. Measure the fall time for the pressure to drop to the reference
pressure from the specified initial pressure.
4. If the measurement is less than the allowable limit, replace the
pump with new one or repair with a Kubota-authorized pump
service shop.
Nozzle Spraying Condition
1. Check the nozzle spray condition.
2. If the spray pattern and spraying direction are faulty, replace
the nozzle piece.
Delivery
valve fuel
tightness
Allowable limit
14.7
13.9 MPa
150
142
2133
2019
psi
5 seconds or less
0000009207E
A
Be careful not to come into direct contact with the injected spray. The spray destroys any cells it
touches. It may also cause blood poisoning, etc. Check the injection nozzle after confirming that
nobody is standing in the direction of the spray.
0000009211E
(a)
Good
(b)
Bad
0000009212E
