System Components Two Position Selector Valve Constant air pressure is supplied from the slave valve to the A-3546 range valve “S” port (1). For LO range (range knob down (2), selector valve button in the “DIR” position (3), air flows out of the range valve “P” port (4).
For Underdrive and Overdrive operation (range knob up (2), selector valve button in the forward position (3) air flows through the selector valve “H” port (4) and out the “SP” port (5).
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System Components
For direct operation (range knob up (2), selector valve button in the “DIR” position (3), the knob prevents the air from passing through the selector valve: air now flows through the “H” port and into the selector valve (5).
