Hitachi 3900 사용자 설명서

If pinion assembly (29) is not removed from clutch housing 
(19), do 1. through 3. Otherwise, start at 4.

1.

Remove drive housing; page 9.

2.

. 4. Disconnect clutch cable connectors from inside of 

pressure control.
a.

. 14. Remove two screws (71) and swing down 

cover (130a).

b.

Disconnect engine leads from board to engine.

c.

Remove strain reliefs 130r and 123.

3.

. 4. Remove four screws (36) and pinion assembly (29).

4.

. 5. Place pinion assembly (29) on bench with rotor 

side up.

5.

Remove four screws (28) and lock washers (24). Install 
two screws in threaded holes (E) in rotor. Alternately 
tighten screws until rotor comes off.

6.

F

IG

. 6. Remove retaining ring (29b).

7.

Turn pinion assembly over and tap pinion shaft (29a) out 
with plastic mallet.

8.

. 7. Use an impact wrench or wedge something 

between clutch armature (25) and clutch housing to hold 
engine shaft during removal.

9.

Remove four screws (23) and lock washers (24).

10. Remove armature.

Read Injection Hazard, page 3; Burn Hazard, page 4

36

37

36

37

29

ti5480a

19

E

28

24

ti5481a

ti5987b

E

29

29b

29a

ti5482a

27

29d

TIA