System Components A-5000 Slave Valve LO Range - Air pressure is supplied to the end cap (1) from the selector/master/Roadranger valve (2). The piston is held forward since the surface area is larger on this end (3) than the surface area at the other end (4) and is exposed to constant air pressure. The constant air flows through the piston center passage (5) which is aligned with the side cap LO range port (6). In normal operation, exhaust occurs only for an instant as the range shift is made.
HI Range - No air pressure is supplied to the end cap (1) from the selector/master/Roadranger valve (2). The constant air pressure entering the supply port (3) moves the piston to the rear position (4). The constant air flows through the piston center passage (5) which is aligned with the side cap HI range port (6) In normal operation, exhaust occurs only for an instant as the range shift is made.
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