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Lincoln Navigator: Automatic Transmission - 10-Speed Automatic Transmission – 10R80 / A Clutch. Description and Operation

Lincoln Navigator 2018-2025 Workshop Manual / Automatic Transmission / Automatic Transmission - 10-Speed Automatic Transmission – 10R80 / A Clutch. Description and Operation

Overview

Item Description
1   SSA
2 A clutch control valve
3 A clutch latch valve
4 A clutch apply circuit
5 A clutch piston
6 A clutch assembly
7 Ring gear No. 1
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Ring gear No. 1 is connected to the A clutch. When the A clutch applies, it holds the ring gear No. 1 stationary.

A Clutch Exploded View

Item Description
1 Front support assembly
2 A clutch piston
3 A clutch piston return spring
4 A clutch wave spring
5 A clutch apply plate
6 A clutch steel plates
7 A clutch friction plates
8 A clutch separating springs
9 A clutch pressure plate
10 Ring gear No. 1
11 Transmission case

A Clutch Hydraulic Circuits

Item Description
1 Line pressure
2 Pump output
3 A clutch control valve
4   SSA
5 Control pressure to latch valve
6 A clutch latch valve
7 Apply pressure to mechanical A clutch
8 Mechanical A clutch
9 Elevated exhaust pressure
10 Clutch exhaust

A Clutch Hydraulic Operation

Line pressure is supplied to the A clutch control valve and the A clutch latch valve. As SSA turns on, it moves the control valve allowing regulated line pressure to flow to the A clutch latch valve and then to the mechanical A clutch. When the regulated line pressure in the A clutch control circuit reaches approximately 698 kPa (100 psi), the mechanical A clutch is fully applied. The pressure in the A clutch control circuit moves the A clutch latch valve to the left which allows line pressure to hold the mechanical A clutch applied.

A Clutch Hydraulic Passages



    Transmission Description - System Operation and Component Description. Description and Operation

    System Diagram E339580 *.sttxt { visibility: hidden; } *...

    B Clutch. Description and Operation

    Overview Item Description 1   SSB 2 B clutch control valve 3 B clutch latch valve 4 B clutch apply circuit 5 B clutch piston 6 B clutch assembly 7 One-Way Clutch (OWC) ..

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