propeller shaft ISUZU TF SERIES 2004 Manual PDF

7A1-10 CONSTRUCTION AND FUNCTION
INPUT SHAFT

The input shaft has some oil holes, through which lubricating ATF is supplied to the torque converter,
bearings, etc.

The input shaft is fitted the turbine runner in the torque converter, reverse & high clutch drum and rear sun
gear by means of the spline. Therefore, the engine driving force received by the torque converter is
transmitted to the reverse & high clutch drum and rear sun gear.

OUTPUT SHAFT

The output shaft has some oil holes, through which the lubricating ATF is supplied to the bearings,
planetary gear unit, etc.

The output shaft transmits the engine driving force from the planetary gear to the propeller shaft.

The front internal gear is fitted with the rear carrier assembly by spline. The parking gear is also fitted by
spline. By fixing this gear mechanically, the output shaft is fixed as required when parking the vehicle.

GEAR SHIFTING MECHANISM

The JR405E consists of two sets of planetary gears, three multiple plate clutches, two multiple plate
brakes and a one-way clutch. They are activated in different combinations in any of four forward and one
reverse gear positions.

Principle of gear shifting (Figure 12)

Planetary gears have the advantage of a compact configuration because of the way they are constructed
with a single central shaft.

Also, unlike the manual transmission gears that require changing of gear mesh, the gear ratio of the
planetary gears can be changed more easily by locking, releasing or rotating only some of their parts.

A planetary gear is made up of a sun gear (1) at its center and pinion gears (2) each of which rotates
about its own center and also along the sun gear, as shown. They are all called in the internal gear (3).

Also, since the pinion gears are further supported by the planetary carrier (4), they rotate as a unit in the
same direction and at the same rate.

As shown above, each planetary gears are constructed of three elements; a sun gear, pinion gears, and
internal gear and a planetary carrier. Gear shifting is achieved by conditioning two of the three elements
namely the sun gear, internal gear and the planetary carrier.

The planetary gears are locked by the clutch, brake and one-way clutch according to the gear shifting.
















1. Sun Gear
2. Pinion Gear
3. Internal Gear
4. Planetary Carrier

Figure 12. Planetary Gear

DIAGNOSIS (JR405E) 7A2-107
No. B10: Brake is Applied in R Range

Description:

Brake is applied suddenly in R range.

Diagnosis Hints:

Basically a trouble in the AT main unit. However, some trouble in the sensor system or output system may have
some influence on the trouble in the main unit and therefore these systems should be also checked to prevent
reproduce of the trouble.

Possible Cause:

Seized clutch (low clutch, high clutch, 2-4 brake).

Shortage or faulty quality of ATF.

Trouble in control valve body (faulty operation, sticking, clogged oil passage).

Disordered select cable (select indicator light indicates R but the hydraulic system is not in the R range).

Malfunction of parking mechanism.


No. B11: Insufficient Starting or Shaking in D Range

Description:

Insufficient starting or shaking in D range.

Possible Cause:

Slip of clutch (low clutch, low one-way clutch, reverse clutch, low & reverse brake).
If slip of clutch is caused, a DTC (gear ratio error) is stored.

Shortage or faulty quality of ATF.

Dropped line pressure.

Trouble in control valve body (faulty operation, sticking, clogged oil passage).


No. B12: Noise or Vibration is Generated at Starting

Description:

Noise or vibration is generated in the vicinity of AT at starting.

Diagnosis Hints:

Cause other than AT can be also considered. It is effective means to reproduce a running condition using a lift
up, chassis dynamo, etc. to investigate the origin (generating condition) of noise and vibration.
Caution:
Lifting up some unit to test it accompanies danger. Provide safety measures as far as possible and
carry out the test with sufficient care.

Possible Cause:
Following sources of noise or vibration other than the AT can be considered.

Noise from differential gears.

Noise from propeller shaft.

The bearing support in the middle of the propeller shaft has fatigued, and the bend angle of the propeller shaft
has changed, causing vibration at the time of start.

Unbalanced and poor uniformity of tires cause vibration.

7A2-130 DIAGNOSIS (JR405E)
No. F2: Engine Races Up During Acceleration (Slip)

Description:

The engine speed up when the accelerator pedal is stepped on for acceleration and the gear is shifted up or
down.

Only the engine speeds up but vehicle speed does not increase when the accelerator pedal is stepped on for
acceleration during the running.

Diagnosis Hints:

Basically same causes as "No. C1 - C8: Engine races up (slip) by shift up or shift down" are considered.
When the condition of No. C1-C8 grows worse, symptom of No. F2 results.




No. F3: Noise or Vibration During the Running in R, D, 3, 2 or L Range

Description:

Noise or vibration is generated in the vicinity of AT during the running.

Diagnosis Hints:

Cause other than AT can be also considered. It is effective means to reproduce a running condition using a lift
up, chassis dynamo, etc. to investigate the origin (generating condition) of noise and vibration.
Caution:
Lifting up some unit to test it accompanies danger. Provide safety measures as far as possible and
carry out the test with sufficient care.

Possible Cause:
Following sources of noise or vibration other than the AT can be considered.

Noise from differential gears.

Noise from propeller shaft.

The bearing support in the middle of the propeller shaft has fatigued, and the bend angle of the propeller shaft
has changed, causing vibration at the time of start.

Unbalanced and poor uniformity of tires cause vibration.




No. F4: Engine Brake Does Not Apply in L Range

Description:

The engine brake does not apply, allowing the vehicle to run freely when the accelerator pedal is released at low
speed in L range.

Possible Cause:

Slip of clutch (low & reverse brake)
If slip of clutch is caused, a DTC (gear ratio error) is stored.

Faulty input/output signal system.
Low & reverse brake duty solenoid

Faulty control valve (faulty operation, sticking).

7A2-146 DIAGNOSIS (JR405E)

5. If there is no reverse.

Reverse clutch malfunction.

Reverse clutch hydraulic circuit failed.

Low & reverse brake hydraulic circuit failed.

Low & reverse brake duty solenoid stick.
Refer to symptom diagnosis "No. A2: Vehicle Dose Not
Run in R Range" or DTC section "Low & Reverse
Brake Duty Solenoid Failure".
6. If there is no parking.

Parking pawl malfunction.
Refer to symptom diagnosis "No. G1: Vehicle Moves in
P Range or Parking Gear in Not Disengaged othe
r
than P Range".

NOTE:
The check for the cause of abnormal noise and vibration
must be made with extreme care as it could also be due to
loss of balance in propeller shaft, differential, the torque
converter, etc. Or insufficient bending, rigidity, etc. in the
powertran.

7A3-20 ON-VEHICLE SERVICE (JR405E)
TRANSMISSION ASSEMBLY
RTW37ALF001401
Legend
1. Shift Cable
2. Propeller Shaft
3. Engine Harness
4. ATF Level Dipstick
5. Under Cover
6. Bolt

7. ATF Pipe
8. Crossmember
9. Bracket
10. Starter Motor
11. Bolt
12. Automatic Transmission

Remove or Disconnect
1. Block the wheels.
2. Disconnect the negative battery cable.
3. Raise the vehicle and support with the suitable safety
stands.

ON-VEHICLE SERVICE (JR405E) 7A3-21
4. Remove the shift cable from the transmission.
P1010068
5. Remove the rear propeller shaft assembly.
6. Loosen (do not remove) the nuts securing the
exhaust manifold and the exhaust pipe.
7. Disconnect the harness connectors from the
transmission.
8. Remove the fuel pipe bracket.
P1010013

P1010014
9. Remove the ATF level dipstick and tube.
10. Remove the undercover.
11. Rotate the ring gear and remove the 6 torque
converter bolts.
P1010016
12. Remove the automatic transmission fluid cooling
pipe.
P1010060
13. Place a jack beneath the engine to support it.
14. Remove the 3rd crossmember.
15. Remove the transmission mount.
16. Lower the jack beneath the engine slightly to tilt the
engine and transmission. Do not allow the radiato
r
and air conditioner hoses to stretch.
17. Remove the bolts attaching the transmission to the
engine.
18. Lower the transmission from beneath the vehicle.
Take care not to damage the breathers.

Install or Connect
1. Install the transmission to the engine and tighten the
bolts.
Bolt torque : M10 40 N·m (30 lb·ft)
M12 76 N·m (56 lb·ft)
2. Install the cable bracket to the transmission.
3. Connect the engine harness connectors.

7A3-22 ON-VEHICLE SERVICE (JR405E)

4. Install the 3rd crossmember.
Bolt and Nut torque : 67 N·m (49 lb·ft)
Bolt torque : 50 N·m (37 lb·ft)
5. Install the automatic transmission fluid cooling pipe.
6. Install the torque converter bolts.
Bolt torque : 29 N·m (22 lb·ft)
7. Install the undercover.
Bolt torque : 9 N·m (78 lb·in)
8. Install the ATF level dipstick and tube.
9. Install the fuel hose bracket.
Bolt torque : 6 N·m (52 lb·in)

10. Tighten the nuts securing the exhaust manifold and
the exhaust pipe.
Bolt torque : 43 N·m (32 lb·ft)
11. Install the rear propeller shaft assembly.
Flange bolt torque : 63 N·m (46 lb·ft)
Center bearing bracket bolt torque :
69 N·m (51 lb·ft)
12. Install the shift cable.
13. Connect the negative battery cable.
14. Remove the safety stands.
15. Remove the wheels blocks.


Torque Specifications
RTW37ALF001501