Isuzu N-Series. Service manual — part 846
MANUAL TRANSMISSION 7B-45
Legend
1. Clutch housing
23. Shim; counter
2. Bush; Clutch housing
24. Counter rear bearing
3. 4th-5th, 6th shift arm
25. Detent assembly
4. Interlock plate
26. Reverse idle cover
5. Control box
27. PTO cover
6. Reverse switch
28. Sensor dummy plug
7. Detent assembly
29. Transmission case
8. Filler plug
30. Detent assembly
9. Detent assembly
31. 1st-reverse and 2nd-3rd shift arm
10. Spring pin
32. Front oil seal
11. Drain plug
33. Bearing outer race
12. 6th relay lever
34. Magnet
13. Snap ring
35. Speedometer driven gear
14. 6th shift arm and shift rod
36. Rear cover
15. Speedometer gear
37. Drain plug
16. Collar
38. Needle bearing; main end
17. Snap ring
39. Rear oil seal
18. 6th clutch hub assembly and sleeve
40. Parking brake assembly
N7A0346E
7B-46 MANUAL TRANSMISSION
Disassembly
Caution:
Be careful not to damage the transmission case and the
clutch housing because they are made of aluminum.
Further attention should be paid to the rib because its
damage weakens hardness of the case.
Do not hurt yourself when working on something heavy
such as cases and gears.
1. Remove the shift block assembly.
• Refer to CLUTCH.
2. Remove the shift fork and the support bolt.
• Refer to CLUTCH.
3. Remove the adjust hole cover securing bolt, and
then remove the parking brake drum.
• Refer to PARKING BRAKE ASSEMBLY.
4. Raise the caulking portions (two parts) of the cou-
pling driver lock nut securely, and then remove the
lock nut using the flange holder 5-8840-2043-0.
5. Remove the coupling driver and the O-ring.
6. Remove the parking brake assembly.
• Refer to PARKING BRAKE ASSEMBLY.
7. Remove the filler plug and the O-ring.
8. Remove the drain plug and the O-ring.
• Drain transmission oil. Check the amount of oil
and the existence of metal particles and foreign
matters while draining oil.
9. Remove the noise cover.
10. Remove the speedometer driven gear (2).
11. Remove the reverse switch (3).
12. Remove the detent assembly (4) (5) (6) (7).
13. Remove the control box (1) and the interlock plate
(8).
14. Remove the front side cover (1).
15. Remove the reverse idle cover (2).
16. Remove the rear cover assembly.
19. 6th gear and needle bearing
41. Top gear shaft assembly
20. Reverse idle shaft
42. Main shaft assembly
21. Reverse idle gear and needle bearing
43. Counter shaft assembly
22. Retainer
N7A0294E
N7A0347E
N7A0312E
MANUAL TRANSMISSION 7B-47
17. When worn or damaged parts are found after
checking the rear cover oil seal, remove it from the
rear cover using the flat-tip screwdriver.
18. Remove the needle bearing; main end from the
rear cover using the remover 5-8840-0027-0 and
the sliding hammer 5-8840-0084-0.
19. Remove the 6th relay lever (1).
20. Remove the 6th shift arm (3) and 6th shift rod (4).
• Using the spring remover, drive out the spring
pin (2).
21. Using the snap ring pliers, remove the snap ring;
6th clutch hub.
22. Using the puller, remove the 6th clutch hub assem-
bly and sleeve, the 6th block ring, the 6th gear and
the needle bearing from the counter shaft.
23. Disassemble the 6th clutch hub assembly and
sleeve.
a. Remove the stopper from the clutch hub.
• The arrow mark shows the direction of the
transmission front side.
Caution:
When removing the stopper plate, replace it with a new
one on installation.
b. Disassemble the clutch hub assembly and
sleeve.
N7A1139E
N7A1140E
N7A1141E
N7A1142E
7B-48 MANUAL TRANSMISSION
24. Remove the collar and the speedometer gear.
25. Remove the retainer from the transmission case.
26. Pull out the reverse idle shaft, and then remove the
reverse idle gear and the needle bearing.
27. Remove the snap ring from the main shaft rear
bearing.
28. Remove the shim from the counter shaft rear bear-
ing.
29. Remove the spring pin; 4th-5th and 6th shift rod.
30. Remove the transmission case from the clutch
housing.
31. Remove the bearing rear outer race from the trans-
mission case.
32. Remove the 4th-5th and 6th shift rod, the 1st-re-
verse and 6th shift block and the 4th - 5th shift arm.
• When driving out the spring pin, put a round
pole on the opposite side of the shift rod not to
damage other parts, and then remove the
spring pin using the spring pin remover.
Legend
1. Spring
2. Insert
3. Clutch hub
4. Sleeve
N7A0352E
N7A1090E
N7A1145E
N7A0316E
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст