1-S19
L3540, L4240, L5040, L5240, L5740, WSM
ENGINE
Fuel Tightness of Pump Element
1. Remove the engine stop solenoid.
2. Remove the injection pipes and glow plugs.
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.
NOTE
Q
• Never try to disassemble the injection pump assembly. For
repairs, you are strongly requested to contact a Kubota-
authorized pump service shop.
W1017430
Fuel Tightness of Delivery Valve
1. Remove the engine stop solenoid.
2. Remove the injection pipes and glow plugs.
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
approx. 13.7 MPa (140 kgf/cm
2
, 1991 psi).
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 13.7 to 12.8 MPa (from 140
to 130 kgf/cm
2
, from 1990 to 1850 psi).
8. Measure the time needed to decrease the pressure from 13.7 to
12.8 MPa (140 to 130 kgf/cm
2
, 1990 to 1850 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.
NOTE
Q
• Never try to disassemble the injection pump assembly. For
repairs, you are strongly requested to contact a Kubota-
authorized pump service shop.
W1017786
Fuel tightness of pump
element
Allowable limit
13.7 MPa
140 kgf/cm
2
1991 psi
(1) Injection Pump Pressure Tester
(2) Injection Nozzle
(3) Protection Cover for Jetted Fuel
Fuel tightness of
delivery valve
Factory spec.
10 seconds
13.7
→
12.8 MPa
140
→
130 kgf/cm
2
1990
→
1850 psi
Allowable limit
5 seconds
13.7
→
12.8 MPa
140
→
130 kgf/cm
2
1990
→
1850 psi
(1) Injection Pump Pressure Tester
(2) Injection Nozzle
(3) Protection Cover for Jetted Fuel
KiSC issued 04, 2010 A
Summary of Contents for L3540
Page 1: ...L3540 L4240 L5040 L5240 L5740 WORKSHOP MANUAL TRACTOR KiSC issued 04 2010 A ...
Page 8: ...6 L3540 L4240 L5040 L5240 L5740 WSM SAFETY INSTRUCTIONS KiSC issued 04 2010 A ...
Page 9: ...7 L3540 L4240 L5040 L5240 L5740 WSM SAFETY INSTRUCTIONS KiSC issued 04 2010 A ...
Page 21: ...G GENERAL KiSC issued 04 2010 A ...
Page 95: ...1 ENGINE KiSC issued 04 2010 A ...
Page 176: ...2 CLUTCH KiSC issued 04 2010 A ...
Page 177: ...CONTENTS MECHANISM 1 FEATURE 2 M1 KiSC issued 04 2010 A ...
Page 189: ...3 TRANSMISSION KiSC issued 04 2010 A ...
Page 363: ...4 REAR AXLE KiSC issued 04 2010 A ...
Page 364: ...CONTENTS MECHANISM 1 STRUCTURE 4 M1 KiSC issued 04 2010 A ...
Page 374: ...5 BRAKES KiSC issued 04 2010 A ...
Page 375: ...CONTENTS MECHANISM 1 STRUCTURE 5 M1 2 OPERATION 5 M2 KiSC issued 04 2010 A ...
Page 390: ...6 FRONT AXLE KiSC issued 04 2010 A ...
Page 391: ...CONTENTS MECHANISM 1 STRUCTURE 6 M1 KiSC issued 04 2010 A ...
Page 417: ...7 STEERING KiSC issued 04 2010 A ...
Page 434: ...8 HYDRAULIC SYSTEM KiSC issued 04 2010 A ...
Page 488: ...9 ELECTRICAL SYSTEM KiSC issued 04 2010 A ...
Page 604: ...10 CABIN KiSC issued 04 2010 A ...