User manual BENDIX TR-2-TR-3-TR-4 INVERSION VALVE

[. . . ] CONTROL INLET & EXHAUST VALVE VALVE STOP O-RING 1/4" P. T. SUPPLY FIGURE 2 - TR-3TM INVERSION VALVE FIGURE 3 - TR-3TM INVERSION VALVE INTERNAL BLEED CONTROL O-RING O-RING 1/4" P. T. DELIVERY VALVE SPRING CAP EXHAUST NUT PIPE PLUG INTERNAL PASSAGE predetermined pressure or is vented from the control cavity, the piston spring forces the piston against the inlet valve closing the exhaust passage in the hollow piston stem. Further travel of the piston opens the inlet valve allowing the passage of air past the open inlet valve and out the delivery port. [. . . ] Use only the proper tools and observe all precautions pertaining to use of those tools. If the work is being performed on the vehicle's air brake system, or any auxiliary pressurized air systems, make certain to drain the air pressure from all reservoirs before beginning ANY work on the vehicle. If the vehicle is equipped with an AD-ISTM air dryer system or a dryer reservoir module, be sure to drain the purge reservoir. Following the vehicle manufacturer's recommended procedures, deactivate the electrical system in a manner that safely removes all electrical power from the vehicle. Never exceed manufacturer's recommended pressures. Never connect or disconnect a hose or line containing pressure; it may whip. Never remove a component or plug unless you are certain all system pressure has been depleted. Use only genuine Bendix® replacement parts, components and kits. Replacement hardware, tubing, hose, fittings, etc. must be of equivalent size, type and strength as original equipment and be designed specifically for such applications and systems. Components with stripped threads or damaged parts should be replaced rather than repaired. Do not attempt repairs requiring machining or welding unless specifically stated and approved by the vehicle and component manufacturer. Prior to returning the vehicle to service, make certain all components and systems are restored to their proper operating condition. 3 REMOVAL AND INSTALLATION REMOVAL Block and hold vehicle by means other than air brakes. Drain service and emergency or parking reservoirs. Remove the mounting bolts, remove valve. INSTALLATION Remount valve securely using holes provided in body. Check and clean air lines and reconnect. DISASSEMBLY NOTE: Care should be taken if body is clamped in vise. Excessive tightening can cause distortion of valve body. Remove the cap nut with sealing ring, remove sealing ring from cap nut. Remove the inlet/exhaust valve spring and inlet/exhaust valve. Turn the valve over and remove the exhaust diaphragm cap screw with lockwasher, then the diaphragm washer and diaphragm. [. . . ] Install the o-ring on supply cap nut and install and tighten the cap nut. Install the piston and exhaust stem o-ring on the piston. Install the cover and washer or washers. Replace the cover nut o-ring on the cover nut and install and tighten the cover nut. [. . . ]