Transfer Clutch
DISASSEMBLY
1. Remove the seal ring. Be careful not to damage the seal ring.
2. Using a press, remove the ball bearing. Do not reuse the bearing.
3. Remove the snap ring, and take out the pressure plate, drive plates, and driven plates.
4. Remove the snap ring, and take out the spring retainer CP.
5. Apply compressed air to the rear drive shaft to remove the piston.
INSPECTION
1. Check the drive plate facing for wear and damage.
2. Check the snap ring for wear, return spring for permanent set and breakage, and spring retainer for deformation.
3. Check the lathe cut ring for damage.
ASSEMBLY
1. Install the lathe cut seal ring to the I.D./O.D. of the transfer clutch piston.
2. Install piston.
(1) Connect piston to rear drive shaft (until it reaches hole in valve body).
(2) Install spring retainer to piston.
(3) Using SPECIAL TOOL, attach transfer piston seal to transfer piston seal guide.
- Be careful not to tilt transfer piston seal.
(4) Place transfer piston seal guide onto rear drive shaft so that spring can be inserted into hole in transfer piston seal.
(5) Attach outer snap ring guide to rear drive shaft. Using an outer snap ring installer, press into place.
- Do not allow lip of transfer piston seal to fold back.
3. Install the driven plates, drive plates, and pressure plate, and secure with a snap ring.
4. Apply compressed air to see if the assembled parts move smoothly.
5. Check the clearance:
Standard value: 0.2-0.6 mm (0.008-0.024 in)
Allowable limit: 1.6 mm (0.063 in)
If the clearance is not within the specified range, select a proper pressure plate. Before measuring clearance, place the same thickness of shim on both sides to prevent pressure plate from tilting.
6. Press-fit the ball bearing.
7. Coat the seal ring with Vaseline, and install it in the seal ring groove of the shaft. Do not expand the seal ring excessively when installing.