Operation RTLO-xx610 Speed Air System This system consists of a A-6910 Roadranger valve, range actuator valve, a splitter shift cylinder and a range cylinder. The splitter cylinder shifts the transmission between odd and even numbered gear positions. The range cylinder shifts the transmission between LO and HI range. Air is supplied to the system at the air supply port (1) by the vehicle's air system. The air filter (2) removes foreign matter from the air then allows it to pass through the air regulator where the pressure is adjusted for 58 to 63 PSI (4.0 daN/cm2). From there the air passes through the supply air hose (3) to the range actuator valve supply port through the supply air line (4) to the Roadranger valve. Depending upon the position of the splitter button (5), if air passes through the air line (6) connected to the splitter cylinder top port (7) then the even numbered gear positions are engaged. If there is no air, the constant air from the air filter/regulator assembly (8) moves the splitter piston rearward to engage odd numbered gear positions. The transmission shift lever automatically activiates LO and HI range depending on gear position. Operation
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