F Clutch
Overview
| Item | Description |
|---|---|
| 1 | SSF |
| 2 | F clutch control valve |
| 3 | F clutch latch valve |
| 4 | F clutch apply circuit |
| 5 | F clutch piston |
| 6 | F clutch assembly |
| 7 | Ring gear No. 4 |
| 8 | Planetary carrier No. 1 |
Ring gear No. 4 is mechanically connected to planetary carrier No. 1 and connected to the F clutch. When the F clutch applies, the ring gear No. 4 may be connected to ring gear No. 2 through the C clutch. Ring gear No. 4 may also connect to planetary carrier No. 3 through the D clutch.
| Item | Description |
|---|---|
| 1 | Planetary carrier No. 1 |
| 2 | CDF clutch cylinder |
| 3 | F clutch piston |
| 4 | F clutch piston return spring |
| 5 | F clutch balance dam |
| 6 | F clutch apply ring |
| 7 | F clutch friction plates |
| 8 | F clutch steel plates |
| 9 | F Clutch pressure plate |
| 10 | Cylinder (clutch and planetary container) |
| 11 | Ring gear No. 4 |
F Clutch Hydraulic Circuits
| Item | Description |
|---|---|
| 1 | Line pressure |
| 2 | Pump output |
| 3 | F clutch control valve |
| 4 | SSF |
| 5 | Control pressure to latch valve |
| 6 | F clutch latch valve |
| 7 | Apply pressure to mechanical F clutch |
| 8 | Mechanical F clutch |
| 9 | Elevated exhaust pressure |
| 10 | Clutch exhaust |
F Clutch Hydraulic Operation
Line pressure is supplied to the F clutch control valve and the F clutch latch valve. As SSF turns on, it moves the control valve allowing regulated line pressure to flow to the F clutch latch valve and than to the mechanical F clutch. When the regulated line pressure in the F clutch control circuit reaches approximately 100 psi, the mechanical F clutch is fully applied. The pressure in the F clutch control circuit moves the F clutch latch valve to the left which allows line pressure to hold the mechanical F clutch applied.
F Clutch Hydraulic Passages