Kubota V3600-E3 Shop Manual page 38

V3-E3B SERIES, V3-E3CB SERIES, V3-E3BG SERIES, WSM
Checking Injection Pump
(Fuel Tightness of Pump Element)
1. Remove the solenoid.
2. Remove the injection pipes.
3. Install the injection pump pressure tester to the injection pump.
4. Install the injection nozzle (2) jetted with the proper injection
pressure to the injection pump pressure tester (1). (Refer to the
figure.)
5. Set the speed control lever to the maximum speed position.
6. Run the starter to increase the pressure.
7. If the pressure can not reach the allowable limit, replace the
pump with new one or repair with a Kubota-authorized pump
service shop.
(Fuel Tightness of Delivery Valve)
1. Remove the solenoid.
2. Remove the injection pipes.
3. Set a pressure tester to the fuel injection pump.
4. Install the injection nozzle (2) jetted with the proper injection
pressure to the injection pump pressure tester (1).
5. Run the starter to increase the pressure.
6. Stop the starter when the fuel jets from the injection nozzle. After
that, turn the flywheel by the hand and raise the pressure to
(IDI : approx. 13.73 MPa (140.0 kgf/cm
18.63MPa (190.0 kgf/cm
7. Now turn the flywheel back about half a turn (to keep the plunger
free). Maintain the flywheel at this position and clock the time
taken for the pressure to drop from (IDI : 13.73 to 12.75 MPa
(140.0 to 130.0 kgf/cm
17.65 MPa (190.0 to 180.0 kgf/cm
8. Measure the time needed to decrease the pressure from (IDI :
13.73 to 12.75 MPa (140.0 to 130.0 kgf/cm
(DI : 18.63 to 17.65 MPa (190.0 to 180.0 kgf/cm
psi)).
9. If the measurement is less than allowable limit, replace the pump
with new one or repair with a Kubota-authorized pump service
shop.
(1) Injection Pump Pressure Tester
(2) Injection Nozzle
(3) Protection Cover for Jetted Fuel
G-26
2
, 1991 psi)), (DI : approx.
2
, 2702 psi)).
2
, from 1991 to 1849 psi)), (DI : 18.63 to
2
, 2702 to 2560 psi)).
2
, 1991 to 1849 psi)),
[A] V3600-E3B, V3600-T-E3B,
V3600-E3CB, V3600-T-E3CB,
V3300-E3BG, V3600-T-E3BG
[B] V3800DI-T-E3B, V3800DI-T-E3CB,
V3800DI-T-E3BG
G GENERAL
2
, 2702 to 2560
W1022357