All units are filled up with coupling fluid
(ultra-low viscosity ATF) prior to shipping. Inspection, fill-up,
and replacement of coupling fluid is therefore not necessary (zero
maintenance, lifetime fluid). |
Coupling Maintenance Precautions
Maintain the coupling at a horizontal
level.
•
|
Refer to the handling caution level (A)
when servicing the coupling (removal, installation,
replacement, etc.).

|
•
|
Remove the dipstick and then mount the
coupling assembly to the rear differential
assembly. |
•
|
Maintain the coupling at a horizontal
level after removing the dipstick to prevent the fluid from
spilling out.

| |
1. |
Remove the 4WD coupling assembly bolts (A-3ea)
mounted to the rear propeller shaft (B).
Tightening
torque :
49.0~68.6N.m (5.0~7.0kgf.m,
36.2~50.6lb-ft)
|

|
2. |
Using a flat tool, separate the propellar
shaft from 4WD coupling assembly. |
3. |
Remove the electric magnetic clutch
connector(A).

|
4. |
Remove the 4WD coupling assembly mounting
bolts (A-4ea).
Tightening
torque :
58.8~63.7N.m (6.0~6.5kgf.m,
43.4~47.0lb-ft)
|

|
5. |
Using a flat tool, separate the 4WD coupling
assembly from the rear differential carrier assembly.
|
1. |
Installation is the reverse of
removal. |
•
|
Grease the spline hole (A) of the
coupling assembly.
Grease
Extreme Pressure(EP) grease
containing molybdenum
disulfide(MoS2)
| |
•
|
When installation the coupling, be
careful not to damage the oil seal
(B). |

|
After replacing the coupling, reset the 4WD
ECU's clutch learing using the GDS tool. (Refer to " Coupling
assembly " in 4WD group) |
Description
The friction material
inside the coupling will degrade over time. Therefore, corresponding
compensation values must be referenced and entered after replacing the
controller or the coupling.
Compensation Requirement and Procedure
1. |
Simultaneous replacement of 4WD ECU
(Controller) and coupling
A. |
Does not require
compensation. | |
2. |
Replacement of coupling only
A. |
Reset the 4WD ECU's (Controller) clutch
learing.


| |
3. |
Replacement of 4WD ECU (Controller)
only
A. |
Before replacement: Check the ECU's
clutch learing.


|
B. |
After replacement: Enter the original
ECU's clutch learing into the replacement ECU.

| |