1. The solenoid of fuel injection pump
2. Warm-up indicating lamp
3. Voltmeter (10A)
Figure 2-1 The electric wiring diagram of control device
Figure 2-2 Electric wiring diagram of starter motor
1. Housing ground
2.Terminal 50
3. Terminal 30
Figure2-3 Electric wiring of glow plug
1.To the solenoid of fuel injection pump
2.To warm-up indicating lamp
3. To voltmeter (10A)
7. Glow plug relay
8. Warm-up timer
9. Battery
4. Starter motor
5. Glow plug
6. Glow plug resistance
9. THE ENGINE FAULT AND THE ELIMINATION METHOD
(4) Replace the fuel injector assembly.
The cause of the fault
Elimination method
1. Starting speed is low.
(1) Battery electric amount isn't enough
or the connection is loosened.
(2)The contact of between the carbon
brush and rectifier is poor.
(3)The gear of the starter engine can't
be embedded into flying wheel circle
(4) The electric battle cable is too long,
too thick; voltage decrease is too large.
2.the fuel system doesn't work normally.
A. There is no fuel injected.
(1) The fuel in the tank is used up.
(2) There is fault in the solenoid Injection pump
a) The cable is cut and the connection is loosened
b) The winding of the solenoid is damaged
c) The solenoid element is snapped
d) There is fault in the starter switch
(3)There is some air in the injector pump
(4) Fuel filter element is clogged
(5) The plunger of the injection pump is
broken or snapped
(6) The transmission bolt in the plane
cam of the injector pump is broken
(7) The inner oil ring of the injector
pump is snapped
B the warm-up system doesn't work normally
(1) The grow plug relay doesn't work normally
(2) Warm-up timer doesn't work normally
C Water temperature sensor doesn't work normally
D Injector doesn't inject fuel or atomization quality is too bad
(1) Nozzle is snapped
(2) The atomization quality of nozzle is too bad
(3) Pressure-regulating spring is broken
(4)There is oil leakage at the
high-pressure oil seal
(1) Charge the battery; tighten the connec-
tion and repair the terminal if necessary.
(2) Repair or replace the carbon brush
(3) Revolve the flying wheel until the small re-
gulating gear levels with the denticulate circuit
(4) Replace the electrical battle cable
(1) refuel the fuel and drain out the air
a) Replace the cable or tight connection
b) Replace solenoid
c) Replace solenoid
d) Check or replace
(3) Drain out the air, tighten the connection of the oil pipe
(4) Clean or replace fuel filter element
(5) Replace the parts of the injector
pump distributor.
(6) Replace the transmission bolt in the
plane cam of the injector pump
(7) Replace the parts of the injector
pump distributor.
(1) check and repair, or replace
(2) check and repair, or replace
C check and repair, or replace
(1) Replace the nozzle assembly
(2) Replace the nozzle assembly
(3) Replace pressure-regulating spring
Summary of Contents for KM376AG
Page 1: ...THREE CYLINDER WATER COOLED DIESEL KM376 SERIES ...
Page 3: ......