Transfer Clutch (Multi-Plate Clutch) - Subaru SVX 1992 Manual

3- 2 [M17021 AUTOMATIC TRANSMISSION AND DIFFERENTIAL
2 . TRANSFER CLUTCH (MULTI-PLATE CLUTCH)
The transfer unit consists of a hydraulic multi-plate
clutch and a transfer hydraulic control system incorpo-
rating a duty solenoid valve. It is housed in the exten-
sion case together with the bearings, rear drive shaft,
etc .
The transmission control unit has duty ratios memo-
rized in advance according to running conditions. In
order to obtain the optimum transfer torque for the
running condition, the oil pressure that is applied to the
drive plates and driven plates is controlled by applying
oil pressure to the transfer piston from the transfer oil
pressure control device including the duty solenoid .
Also, the transfer clutch drum and rear drive shaft are
joined to each other by welding . The rear drive shaft has
drilled oil passages for transfer clutch control and also
for lubrication of extension bushing and ball bearing in
it .
Selective parts
1 Snap ring
40
* 2 Pressupe plate
3 Drive plate
4 Driven plate
*5 Thrust needle bearing
6 Snap ring
7 Spring retainer CP .
8
Lathe cut seal ring
9 Transfer clutch piston
10 Lathe cut seal ring
11 Needle bearing
12 Rear drive shaft
13 Ball bearing
14 Seal ring
15 Reduction drive gear
C3-013
Fig. 30
22