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Home >> Audi >> 2016 >> S5 Prestige, 2D Convertible >> Repair and Diagnosis >> External Pages >> Different car >> Section 1081 (Automatic Transmission - 10R80 (1 Of 2)) >> Description And Operation >> C Clutch

C Clutch

WARNING: This page is about a different car, the 2018 Lincoln Navigator. However, it is still accessible from the selected car via links, so may be relevant.

Overview 

GFD273398Courtesy of FORD MOTOR COMPANY
Item  Description 
1 SSC
2 C clutch control valve
3 C clutch latch valve
4 C clutch apply circuit
5 C clutch piston
6 C clutch assembly
7 Ring gear No. 2
8 Shaft (sun gear No. 3)
9 Sun gear No. 3

Ring gear No. 2 is mechanically connected to sun gear No. 3 and is also connected to the C clutch. When the C clutch applies, torque from ring gear No. 2 may be applied the planetary carrier No. 3.

Fig 1: Exploded View Of C Clutch
GFD273399Courtesy of FORD MOTOR COMPANY
Item  Description 
1 C clutch pressure plate
2 C clutch steel plates
3 C clutch friction plates
4 Ring gear No. 2
5 Shaft (sun gear No 3)
6 C clutch balance dam
7 C clutch piston return spring
8 C clutch piston
9 CDF clutch cylinder
10 Sun gear No. 3

C Clutch Hydraulic Circuits 

GFD273389Courtesy of FORD MOTOR COMPANY
Item  Description 
1 Line pressure
2 Pump output
3 C clutch control valve
4 SSC
5 Control pressure to latch valve
6 C clutch latch valve
7 Apply pressure to mechanical C clutch
8 Mechanical C clutch
9 Elevated exhaust pressure
10 Clutch exhaust

C Clutch Hydraulic Operation 

Line pressure is supplied to the C clutch control valve and the C clutch latch valve. As SSC turns on, it moves the control valve allowing regulated line pressure to flow to the C clutch latch valve and than to the mechanical C clutch. When the regulated line pressure in the C clutch control circuit reaches approximately 100 psi, the mechanical C clutch is fully applied. The pressure in the C clutch control circuit moves the C clutch latch valve to the left which allows line pressure to hold the mechanical C clutch applied.

C Clutch Hydraulic Passages 

GFD273400Courtesy of FORD MOTOR COMPANY
GFD273401Courtesy of FORD MOTOR COMPANY
GFD273402Courtesy of FORD MOTOR COMPANY
GFD273403Courtesy of FORD MOTOR COMPANY