Nanni N4.40, Workshop Manual

Page: 101 / 175

ENGINE
03-M-E3B, 03-M-DI-E3B, 03-M-E3BG, WSM
1-S31
Fuel Tightness of Pump Element
[D1503-M, D1703-M, D1803-M, V2003-M, V2203-M, V2403-M,
V2403-M-T, D1703-M-BG, V2003-M-BG, V2003-M-T-BG,
V2203-M-BG, V2403-M-BG]
1. Remove the solenoid.
2. Remove the injection pipes and glow plugs.
3. Set the injection pump pressure tester to the injection pump.
4. Set the injection nozzle (2) jetted with the correct 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. Crank the engine with the starter to increase the pressure.
7. If the pressure is lower than the allowable limit, replace the
pump with a new one.
You can also repair the pump at a KUBOTA-authorized pump
service shop.
NOTE
• Do not try to disassemble the injection pump assembly.
Repair the pump at a KUBOTA-authorized pump service
shop.
M00000003ENS0028US1
Fuel Tightness of Pump Element
[D1803-M-DI, V2403-M-DI, V2403-M-DI-T]
1. Remove the solenoid.
2. Remove the injection pipes and glow plugs.
3. Set the injection pump pressure tester to the injection pump.
4. Set the injection nozzle (2) jetted with the correct 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. Crank the engine with the starter to increase the pressure.
7. If the pressure is lower than the allowable limit, replace the
pump with a new one.
You can also repair the pump at a KUBOTA-authorized pump
service shop.
NOTE
• Do not try to disassemble the injection pump assembly.
Repair the pump at a KUBOTA-authorized pump service
shop.
M00000003ENS0029US1
Fuel tightness of pump
element
Allowable limit
13.73 MPa
140.0 kgf/cm
2
1991 psi
(1) Injection Pump Pressure Tester
(2) Injection Nozzle (3) Protection Cover for Jetted Fuel
Fuel tightness of pump
element
Allowable limit
18.63 MPa
190.0 kgf/cm
2
2702 psi
(1) Injection Pump Pressure Tester
(2) Injection Nozzle (3) Protection Cover for Jetted Fuel
KiSC issued 06, 2009 A