clutch ISUZU AXIOM 2002 Service Owner's Guide

4B2±107
DRIVE LINE CONTROL SYSTEM (TOD)
StepActionYe sNo
1Is the trouble code 31(P1721) recorded?Examine the
trouble based on
ªDiagnosis from
Trouble Codesº.
Go to Step 2
2Is any of the trouble codes 28(P1760), 32(P1761) and 33(P1762)
recorded?Examine the
trouble based on
ªDiagnosis from
Trouble Codesº.
Go to Step 3
3When the TOD switch is selected to the specified position, do the
TOD indicator lamps show the correct status?
Go to Step 4
Examine the
trouble based on
ªTrouble
Diagnosis
Depending on
The Status of
TOD Indicatorº.
4Select the TOD switch to the 4L position, fully turn the steering to
the left (or right) end, and start the creep run. Does the tight corner
braking occur?
Go to Step 5
Repair the
transfer
assembly.
Go to
Step 7
51. Select the TOD switch to the TOD position.
2. Turn on the starter switch.
Does the voltage between terminals 11 and 22 indicate at least 3V
while the throttle is completely open?
Go to Step 6
The ECU has
failed. Replace
the ECU.
Go to
Step 7
6Does the voltage between terminals 11 and 22 indicate at least
0.1V while the throttle is completely closed?The TOD clutch
is worn. Repair
the transfer
assembly.
Go to
Step 7
The ECU has
failed. Replace
the ECU.
Go to
Step 7
7Check that all the parts are mounted.
Is this step complete?
Verify the repair.Go to Step 7

4C±19 DRIVE SHAFT SYSTEM
Shift On The Fly System
Shift On The Fly System and Associated Parts
412RY00007
Legend
(1) Filler Plug
(2) Bolt
(3) Oil Seal
(4) Snap Ring(External)
(5) Inner Shaft Bearing
(6) Snap Ring(Internal)
(7) Inner Shaft(8) Needle Bearing
(9) Clutch Gear
(10) Sleeve
(11) Housing
(12) Front Axle Drive Shaft(LH side) with Bracket
(13) Bolt
(14) Actuator Assembly
(15) Bolt

4C±20
DRIVE SHAFT SYSTEM
Disassembly
1. Remove filler plug and gasket, drain oil.
2. Loosen mounting bracket fitting bolts and remove
front axle drive shaft from front axle case.
3. Remove actuator assembly and draw out actuator
ASM.
4. Remove housing.
5. Remove sleeve.
6. Remove clutch gear.
7. Remove snap ring from front axle case by using snap
ring pliers.
412RW017
8. Take out inner shaft from front axle case.
9. Remove snap ring from inner shaft by using snap ring
pliers.
412RW016
10. Remove inner shaft bearing.
NOTE: Be careful not to damage the shaft.
412RW015
11. Remove needle bearing from inner shaft by using a
remover J±26941 and sliding hammer J±2619±01.
412RS045
12. Remove oil seal from front axle case.
NOTE: Be careful not to damage the front axle case.

4C±21 DRIVE SHAFT SYSTEM
Inspection And Repair
Inspect the removed parts. If there are abnormalities
such as wear and damage, take corrective action or
replace.
Visual Check
1. Check and see if the inner shaft has such
abnormalities as wear and damage.
412RW014
2. Replace the shaft if any signs of deterioration in the
gear is present.
420RS008
Inner Shaft Run±Out
With both end centers supported, rotate the shaft slowly
and measure deflection with a dial gauge.
Limit: 0.5 mm (0.02 in)
NOTE: Do not heat the shaft to correct its bend.
412RS026
Inner Shaft Bearing
412RW006
Legend
(1) Inner Shaft Bearing
(2) Inner Shaft
(3) Clutch Gear
1. Inspect the inner shaft bearing for any signs of
deterioration, replace if uneven.
2. Insert the clutch gear and inspect the needle bearing.
3. Replace the needle bearing if found to be uneven.

4C±22
DRIVE SHAFT SYSTEM
Sleeve Condition
Check and see that there is not wear damage, or cracking
in the sleeve.
NOTE: Close inspection of the groove and inner gear are
required because those are important parts.
Sleeve Function
412RY00039Test the sleeve for smoothness by sliding it between the
inner shaft and the clutch gear, replace the sleeve if its
difficult to slide.
NOTE: Gear oil should be applied to the contact surface
of gear.
Check the width of sleeve center groove.
Limit: 7.1 mm (0.28 in)
412RW022
Clutch Gear Condition
Check for wear, damage, crack or any other deterioration
in the clutch gear.
Clutch Gear Function
412RY00038Test the sleeve for smoothness by sliding it across the
clutch gear, replace the clutch gear if its difficult to slide.
NOTE: When inspecting, gear oil should be applied to the
contact surface of gear.
Clutch Gear Journal Diameter
Make sure of the size illustrated.
Limit: 36.98 mm (1.456 in)
412RY00037

4C±24
DRIVE SHAFT SYSTEM
2. Install a new needle bearing into inner shaft by using a
Installer J±41694 and grip J±8092.
412RS051
3. Place a new snap ring(internal) in inner shaft.
Install a new inner shaft bearing into the inner shaft.
412RS044
4. Install snap ring(external).
NOTE: Be careful not to damage the inner shaft.
5. Clean the housing contact surface of the front axle
case and insert inner shaft assembly into the front
axle case.
NOTE: Be careful not to damage seal.
6. Install snap ring internal in the groove of front axle
case.NOTE: Be sure to install the snap ring properly.
412RW017
7. Apply differential gear oil to clutch gear, then install
clutch gear.
8. Apply differential gear oil to sleeve, then install
sleeve.
9. Clean contact surface with the front axle and actuator
mounting surface. Apply liquid gasket to the contact
surface on the front axle case, then install in the
housing.
412RW023
10. Tighten bolts to specified torque.
Torque: 75N´m(55 lb ft)
11. Clean the actuator contact surface with the housing
then Install and tighten shift position switch to
specified torque.
Torque: 39N´m (29 lb ft)

4C±59 DRIVE SHAFT SYSTEM
Shift On The Fly System
Shift On The Fly System and Associated Parts
412RY00007
Legend
(1) Filler Plug
(2) Bolt
(3) Oil Seal
(4) Snap Ring(External)
(5) Inner Shaft Bearing
(6) Snap Ring(Internal)
(7) Inner Shaft(8) Needle Bearing
(9) Clutch Gear
(10) Sleeve
(11) Housing
(12) Front Axle Drive Shaft(LH side) with Bracket
(13) Bolt
(14) Actuator Assembly
(15) Bolt
Disassembly
1. Remove filler plug and gasket, drain oil.
2. Loosen mounting bracket fitting bolts and remove
front axle drive shaft from front axle case.3. Remove actuator assembly and draw out actuator
ASM.
4. Remove housing.
5. Remove sleeve.
6. Remove clutch gear.

4C±61 DRIVE SHAFT SYSTEM
Inspection And Repair
Inspect the removed parts. If there are abnormalities
such as wear and damage, take corrective action or
replace.
Visual Check
1. Inspect the inner shaft for wear and damage.
412RW014
2. Replace the shaft if any signs of deterioration in the
gear is present.
420RS008
Inner Shaft Run±Out
With both end centers supported, rotate the shaft slowly
and measure deflection with a dial gauge.
Limit: 0.5 mm (0.02 in)
NOTE: Do not heat the shaft to correct its bend.
412RS026
Inner Shaft Bearing
412RW006
Legend
(1) Inner Shaft Bearing
(2) Inner Shaft
(3) Clutch Gear
1. Inspect the inner shaft bearing for any signs of
deterioration, replace if uneven.
2. Insert the clutch gear and inspect the needle bearing.
3. Replace the needle bearing if found to be uneven.
Sleeve Condition
Check for wear damage, or cracking in the sleeve.
NOTE: Close inspection of the groove and inner gear are
required because those are important parts.

4C±62
DRIVE SHAFT SYSTEM
Sleeve Function
412RY00039Test the sleeve for smoothness by sliding it between the
inner shaft and the clutch gear, replace the sleeve if its
difficult to slide.
NOTE: Gear oil should be applied to the contact surface
of gear.
Check the width of sleeve center groove.
Limit: 7.1 mm (0.28 in)
412RW022
Clutch Gear Condition
Check for wear, damage, crack or any other deterioration
in the clutch gear.
Clutch Gear Function
412RY00038Test the sleeve for smoothness by sliding it across the
clutch gear, replace the clutch gear if its difficult to slide.
NOTE: When inspecting, gear oil should be applied to the
contact surface of gear.
Clutch Gear Journal Diameter
Make sure of the size illustrated.
Limit: 36.98 mm (1.456 in)
412RY00037
Actuator
Check for damage, cracking, or other abnormality.

4C±64
DRIVE SHAFT SYSTEM
2. Install a new needle bearing into inner shaft by using a
Installer J±41694 and grip J±8092.
412RS051
3. Place a new snap ring(internal) in inner shaft.
Install a new inner shaft bearing into the inner shaft.
412RS044
4. Install snap ring(external).
NOTE: Be careful not to damage the inner shaft.
5. Clean the housing contact surface of the front axle
case and insert inner shaft assembly into the front
axle case.
NOTE: Be careful not to damage seal.
6. Install snap ring internal in the groove of front axle
case.NOTE: Be sure to install the snap ring properly.
412RW017
7. Apply differential gear oil to clutch gear, then install
clutch gear.
8. Apply differential gear oil to sleeve, then install
sleeve.
9. Clean contact surface with the front axle and actuator
mounting surface. Apply liquid gasket to the contact
surface on the front axle case, then install in the
housing.
412RW023
10. Tighten bolts to specified torque.
Torque: 75N´m(55 lb ft)
11. Clean the actuator contact surface with the housing
then Install and tighten shift position switch to the
specified torque.
Torque: 39N´m (29 lb ft)