|
|
1.Clean the disassembled parts with cleaning oil and dry them with compressed air.
|
|
2.Check each plate, disc, and pressure ring for the following:
- A: Friction and sliding surfaces of friction discs, friction plates, and spring plates. Replace a defective part that has heat discoloration and excessive wear, as it degrades locking performance.
| note |
If the inner periphery of the friction face shows traces of harsh contact, it is because of the spring tension of each plate, disc and other part. Do not confuse this with abnormal wear.
|
- B: Inner periphery and outer periphery protrusions of friction discs, friction plates, and spring plates. Replace a cracked or damaged part.
- C: Friction and sliding surfaces between pressure rings and friction discs. Grind a dented or scratched part with oil stone and then lap and correct with a compound on a surface plate.
| note |
If the inner periphery of the friction face shows traces of harsh contact, it is because of the spring tension of each plate, disc and other part. Do not confuse this with abnormal wear.
|
|
|
3.Check the following parts for contact and siding surfaces (D to M) and correct burrs and dents with oil stone.
- D: Sliding surfaces of side gear and case
- E: Contacting surfaces of differential case and spring plate
- F: Contacting surfaces of pressure ring and differential case inner face
- G: Sliding surfaces of pressure ring hole and side gear
- H: Protrusions on outer periphery of pressure ring
- I: Pressure ring inner surface and differential pinion gear spherical surface
- J: Pressure ring V-groove and pinion shaft V
- K: Sliding surfaces of pinion shaft and differential pinion gear hole
- L: Side gear grooves on outer periphery
- M: Slits in inner periphery of differential
|
|
Apply a dial indicator to the friction plate or disc on a surface plate and, turning the friction plate or disc, measure the distortion (flatness).
Limit: 0.08 mm
|
|
1.For the purpose of determining wear, measure thickness (A, B) of the friction surface and protrusion at several places and find the difference between the two.
Limit: 0.1 mm
2.If the wear exceeds the limit, replace the part with a new one.
|