Content .. 14 15 16

Great Wall engine 4G64S4M. Manual - part 16

11-58

ENGINE

AC GENERATOR

3EN0208

3EN0209

7EL0011

7EL0012

STATOR

(1)

Conduct on stator examination over the stator and confirm

whether the conduction exists with the lead-wire of the winding,

if not, replace the stator assembly.

(2)

Check the grounding of stator winding. Confirm whether con-

duction exists between the winding and stator iron core, if yes,

replace the stator assembly.

RECTIFIER

(1) Check the positive rectifier

Check whether conduction exists between the positive rectifier

and the wiring terminals of stator windings with a multimeter. If

conduction exists in two direction , the diode is breakdown, the

rectifier assembly should be replaced.

(2)

Check the positive rectifier

Check whether conduction exists between the negative rectifier

and the wiring terminals of stator windings. If conduction exists

in two direction, the diode is breakdown, the rectifier assembly

should be replaced.

(3)

Check diodes group (3 diodes)

Connect the two ends of the diode to the ammeter, check whether

these three diodes are switched into conduction.

If conduction doesn

t exists bidirectioinally, the diodes are

damaged, and the radiator assembly should be replaced.

11-59

ENGINE

AC GENERATOR

wear limit line wite

9EN0192

9EN0193

9EN0194

6EN1706

steel wirt

6EN1705

rear cap

brush

steel wirt

BRUSH

(1)

If the brush is worn out to the wear limit line, replace brush by

taking the following steps:

(2)

The brush may be taken off by burning off the soldering joint of

the brush lead-wire.

(3)

While mounting new brush, you should burn on the brush lead-

wire with the brush being pressed into the brush holder.

NOTES FOR ASSEMBLY

MOUNTING OF ROTOR

(1)

Before mounting the rotor onto the rear cap, insert a steel wire

into the small hole on the rear cap to lift the mounted rotor, and

then pull out the steel wire.

11-60

ENGINE

STARTER

Disassembly Process

bolt

magnet valve

bolt

rear carrier

brush holder

brush

rear bearing

rotor

10. yoke assembly

11. washer A

12. washer B

13. plate

14. ball

15. planetary gear

16. rod

17. snap spring

18. checking ring

19. free engine clutch

20. inner gear

21. planetary gear carrier

22. front carrier

STARTER

DISASS0.EMBLY AND ASSEMBLY

6EN1412

11-61

ENGINE

STARTER

1EN0298

6EN0612

snap spring clamp

pinion

free engine clutch

rotor

depth

dinion

snap spring clamp

rotor

checking ring

casing tube

snsp spring

6EN0611

magnetic switch

terminal S

terminal

exciting coil

wiring

6EN0616

terminal B

ESSENTIALS FOR DISASSEMBLY

DISASSEMBLY OF MAGNET VALVE

(1)

Knock down exciting coil from terminal M of the magnet valve.

DISASSEMBLY OF ROTOR AND BALL

(1)

Do not drop the ball mounted on the end of bearing while

disassemble the rotor.

DISASSEMBLY OF SNAP SPRING AND CHECKING

RING

(1)

Push and press the checking ring to the free engine clutch with a

proper casing tube to separate it from the snap spring.

(2)

Dismantle the snap spring with a snap spring clamp first, then

disassemble the checking ring and free engine clutch.

CLEANING OF STARTER COMPONENTS

(1)

Don

t clean the components in detergent. Immerging the yoke

and exciting coil assembly or rotor into detergent may damage

their insulation property.

(2)

When these components are contaminated, use a piece of cloth to

clean them.

(3)

The driving parts may neither be immerged into detergent.

Because free engine clutches have been lubricated before leaving

factory, if you clean them in detergent, the lubricant inside the

clutch may be washed off.

(4)

The driving part should be cleaned with a brush dipped with

detergent, and toweled off with cloth.

CHECK

COMMUTATOR

(1)

Put the rotor on a pair of V-blocks, check its radial jumping with

a dial gage.

Standard value: 0.5mm

Limit value: 0.1mm

Content .. 14 15 16