Isuzu N-Series. Manual — part 870
7B1-4 MANUAL TRANSMISSION (MZZ)
ON-VEHICLE SERVICE
Transmission Oil Level Check
Measure
• Block the vehicle so it cannot move.
• Disconnect the ground cable from the battery neg-
ative (
−) post.
1. Remove the filler plug (2) from the transmission
case (3).
2. Check oil level.
• Add lubricant to within 0 — 10 mm (0 — 0.4 in) of
bottom edge of the filler hole if necessary.
Caution:
Use ENGINE OIL SAE 5W-30 for the transmission case.
3. Install the filler plug.
Tighten:
• Filler plug to 39 N
⋅m (4 kg⋅m / 29 lb⋅ft)
• Connect the battery ground cable and remove the
wheel blocks.
Changing Transmission Oil
Drain the transmission oil after driving the vehicle. The
oil will drain more completely.
• Block the vehicle so it cannot move.
• Disconnect the ground cable from the battery neg-
ative (
−) post.
1. Remove the drain plug (1). Provide a pan to catch
oil.
2. Install the drain plug and tighten.
Tighten:
Drain plug to 39 N
⋅m (4 kg⋅m / 29 lb⋅ft)
3. Remove the filler plug (2).
4. Fill the transmission case to level of the filler plug
opening.
Caution:
Use ENGINE OIL SAE 5W-30 for the transmission case.
5. Install filler plug and tighten.
Tighten:
• Filler plug to 39 N
⋅m (4 kg⋅m / 29 lb⋅ft)
• Connect the battery negative cable and remove the
wheel blocks.
Gearshift Lever
Remove or Disconnect
• Block the vehicle so it cannot move.
• Disconnect the ground cable from the battery neg-
ative (
−) post.
1. Gearshift lever knob (4).
2. Cover assembly (5).
• Remove the fixing screw (6) and 3 clips (7).
3. Shift cable (8) and select cable (9).
• Disconnect the cables from the gearshift lever.
• Remove the C-clips (10) and disconnect the cables
from bracket.
4. Gearshift lever assembly (11).
• Remove 2 screws (12) and 2 nuts (13).
Legend
1. Drain plug
2. Filler plug
3. Transmission case
1
3
2
N7A0517E
MANUAL TRANSMISSION (MZZ) 7B1-5
Install or Connect
1. Gearshift lever assembly (11).
2. Shift cable (8) and select cable (9).
• Connect the cables to the gearshift lever.
• Install the C-clips (10) to the bracket.
Adjust:
• When connecting the shift cable and select cable
to the gearshift lever, adjust the cable. Refer to
GEARSHIFT CABLE in this section.
3. Cover assembly (5).
4. Gearshift lever knob (4).
• Connect the battery negative cable and remove the
wheel blocks.
Gearshift Cable
After connection of the select cable and the shift cable,
confirm if shift operation is performed smoothly. If any
dragging or improper stroke is present, check and adjust
in accordance with the procedures shown below.
Measure
Set the transmission in the neutral position, then confirm
if the dimension between the center of the shift lever
play and the instrument center cluster is within the 283
± 15 mm (11.1 ± 0.6 in). If the dimension is out of the ref-
erence value, adjust as required.
Adjust
• Block the vehicle so it cannot move.
• Disconnect the ground cable from the battery neg-
ative (-) post.
1. Remove the gearshift lever knob (4).
2. Remove the cover assembly (5).
3. Disconnect the shift cable (8) and the select cable
(9) on the gearshift lever side.
4. Set the transmission in the neutral position, then
adjust the dimension between the center of the
shift lever play and the instrument center cluster to
the 283
± 15 mm (11.1 ± 0.6 in).
5. Loosen the lock nut (15) of the shift cable (8) and
the select cable (9), then turn the ball joint (14) or
turnbuckle (16) as necessary for respective pins.
6. Fasten the lock nut (15) with specific torque.
Tighten:
Lock nut (15) to 6 N
⋅m (0.6 kg⋅m / 52 lb⋅in)
7. Install the cover assembly (5).
8. Install the gearshift lever knob (4).
• Connect the battery ground cable and remove the
wheel blocks.
Legend
4. Gearshift lever knob
5. Cover assembly
6. Screw
7. Clip
8. Shift cable
9. Select cable
10. C-clip
11. Gearshift lever assembly
12. Screw
13. Nut
N7A0518E
N7A0519E
7B1-6 MANUAL TRANSMISSION (MZZ)
Remove or Disconnect
• Block the vehicle so it cannot move.
• Disconnect the ground cable from the battery neg-
ative (-) post.
1. Gearshift lever knob (4).
2. Cover assembly (5).
3. Shift cable (8) and select cable (9).
• Disconnect the shift cable and select cable from
gearshift lever.
• Remove the C-clips (10) and disconnect the cables
from gearshift lever bracket.
• Remove the grommet retainer (17), grommet seal
(18) and grommet (19).
• Tilt the cab.
• Disconnect the shift cable and the select cable on
the transmission side.
• Remove the C-clips (10) and disconnect the shift
cable and the select cable from the bracket (20).
• Remove the clips that fix the cables to the frames
or brackets.
• Remove the shift and select cable assemblies.
Legend
8. Shift cable
9. Select cable
14. Ball joint
15. Lock nut
16. Turnbuckle
21. Shift lever side
22. Transmission side
N7A0520E
Legend
4. Gearshift lever knob
5. Cover assembly
6. Screw
7. Clip
8. Shift cable
9. Select cable
10. C-clip
11. Gearshift lever
17. Grommet retainer
18. Grommet seal
19. Grommet
N7A0521E
MANUAL TRANSMISSION (MZZ) 7B1-7
Legend
8. Shift cable
9. Select cable
10. C-clip
20. Bracket
N7A0522E
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