Ford Explorer Quiz
Powertrain

Description and Operation - Clutches

In this manual: Powertrain
General Information — 41Chassis — 173Powertrain — 250Electrical — 303Body and Paint — 331
~1min read

Overview

Item Description
1 SSA
2 Clutch Control Valve
3 Clutch Lock-Up Valve
4 Clutch Apply Circuit
5 Clutch Piston
6 Clutch Assembly
7 Ring gear No. 1

Ring Gear No. 1 is connected to Clutch A. When Clutch A is applied, it holds Ring Gear No. 1 stationary.

Clutch Disassembled

Item Description
1 Front Support Assembly
2 Clutch Piston
3 Clutch Piston Return Spring
4 Clutch Wave Spring
5 Clutch Apply Plate
6 Clutch Steel Plates
7 Clutch Friction Plates
8 Clutch Separator Spring
9 Clutch Pressure Plate
10 Ring gear No. 1
11 Transmission

Clutch Hydraulic Circuits

Item Description
1 Line Pressure
2 Pump Output
3 Clutch Control Valve
4 SSA
5 Control Pressure for Lock-Up Valve
6 Clutch Lock-Up Valve
7 Apply Mechanical Clutch A
8 Mechanical Clutch
9 Increased Exhaust Pressure
10 Clutch Exhaust

Clutch Hydraulic Operation

Line pressure is supplied to the Clutch A control valve and the Clutch A lock-up valve. As the solenoid is energized, it moves the control valve, allowing regulated line pressure to flow to the Clutch A latch valve and then to Mechanical Clutch A. When the regulated line pressure in the Clutch A control circuit reaches approximately 698 kPa (100 psi), Mechanical Clutch A is fully applied. The pressure in the Clutch A control circuit moves the Clutch A lock-up valve to the left, which allows line pressure to hold Mechanical Clutch A applied.

Clutch Hydraulic Passages



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