Isuzu N-Series. Service manual — part 943
7B-8 Automatic Transmission (Smoother)
e. Fill it with Besco ATF III through the level gauge
guide tube.
The amount of oil is used as a guide for
change. After oil change, with reference to
“Inspection procedure”, make sure that it is
poured to the specified level.
Transmission fluid capacity at replacement: 2.0
L (2.1 US qt / 1.8 Imp qt)
Checking Line Oil Pressure
1. Stop the engine and wait long enough for line oil
pressure to drop.
2. Remove the eye bolt on the right side and remove
any seal material remaining in the bolt hole.
3. Attach an oil pressure gauge and then start the
engine.
4. Measure the line oil pressure.
Line oil pressure reference value: 715 to 800 kPa
{7.3 to 8.2 kg/cm
2
}
5. Operate the shift lever and check if line oil pressure
is within the prescribed values even during gear in.
6. If the line oil pressure is not within the prescribed
values, check the transmission fluid level. If the
level is normal, repair the transmission unit.
7. Stop the engine, wait long enough for line oil
pressure to drop, and then remove the oil pressure
gauge.
8. Using a new gasket, re-install the eye bolt and
tighten it to its specified torque.
Tighten:
39 N
⋅m (4.0 kg⋅m / 28.8 lb⋅ft)
Checking the Oil
1. Remove the filler plug.
2. From the filler plug hole, check that the oil is up to
the bottom of the hole.
3. Replenish oil until it is within the prescribed level.
• Oil: Besco gear oil transaxle (5W-30)
4. Tighten the filler plug to the specified torque.
Tighten:
39 N
⋅m (4.0 kg⋅m / 28.8 lb⋅ft)
MYY 5-Speed
N7A1287E
N7A1285E
N7A1005E
Automatic Transmission (Smoother) 7B-9
MYY 6-Speed
Changing Transmission Oil
1. Start the engine and allow it to run until the
transmission is sufficiently warmed up.
2. Stop the engine and then remove the drain plug to
drain the oil.
3. Tighten the drain plug.
Tighten:
39 N
⋅m (4.0 kg⋅m / 28.8 lb⋅ft)
4. Remove the filler plug.
5. Fill oil from the filler plug hole until it reaches the
rim of the hole.
6. Tighten the filler plug to the specified torque.
Tighten:
39 N
⋅m (4.0 kg⋅m / 28.8 lb⋅ft)
Legend
1. Filler Plug
2. Drain Plug
Oil Level (L)
MYY 5-Speed
MYY 6-Speed
Standard
2.8
3.5
With Side PTO
3.1
3.8
N7A1006E
7B-10 Automatic Transmission (Smoother)
Selector Lever Assembly
Components
Removal
Preparation
• Disconnect the battery (
−) cable.
1. Remove the parking brake cable cover (1).
Legend
1. Selector Lever Assembly
4. Gear Control Cover
2. Parking Brake Cable Bracket
5. Parking Brake Cable Bracket
3. Parking Brake Cable Cover
N7A1007E
Automatic Transmission (Smoother) 7B-11
2. Remove the gear control cover (2).
3. Remove the two parking brake cable brackets.
4. Disconnect the harness connector.
5. Remove the selector lever assembly.
• Remove the two installation bolts and two nuts
of the selector lever assembly.
Installation
1. Install the selector lever assembly.
• Install the two installation bolts and two nuts of
the selector lever assembly.
2. Connect the harness connector.
3. Install the two parking brake cable brackets.
4. Install the gear control cover (2).
5. Install the parking brake cable cover (1).
N7A1008E
N7A1009E
N7A1009E
N7A1008E
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