User manual BENDIX C-5 CUT OUT COCK

[. . . ] NOTE: Leakage should be checked in each direction since it is possible for the valve to seal in one direction but not the other. If the cut-out cock leaks excessively or if wear or deterioration is noted during routine maintenance, it is recommended that it be replaced with a new unit or repaired with genuine Bendix parts. OPERATION Note that in Figure 1 the C-5TM cut-out cock uses a metal ball valve between two valve seats. Rotating the ball valve 90° will either open or close the air passage through the cut-out cock. PREVENTIVE MAINTENANCE Every six months, 1800 operating hours, or 50, 000 miles the cut-out cock should be checked for leakage around the ball valve and past the stem o-ring. Once each year, 3600 hours, or 100, 000 miles the C-5TM cut-out cock should be disassembled, cleaned, and inspected for signs of wear or deterioration. REMOVING AND INSTALLING REMOVING Block and hold vehicle by means other than air brakes. [. . . ] Remove stem washer and o-ring from stem. CLEANING AND INSPECTION Wash all metal parts in mineral spirits. Ball valve seats and o-rings should be wiped clean. Inspect seats and o-rings for nicks, wear or deterioration. Inspect valve body, cap nut, handle and stem for cracks and wear. Any part considered unserviceable will necessitate that the entire valve be rebuilt or replaced. ASSEMBLY All o-rings should be lightly lubricated with Bendix silicone lubricate BW650M piece no. Position stem washer and o-ring on stem. Push stem through body (threaded end first) from the inside out. Position operating handle on stem and replace and tighten stem lock nut. Position one of the two valve seats in the body with the contoured side up. Place operating handle in position noted during disassembly. (Drive tang on end of stem should be parallel with center line of body. ) Place ball valve in body with slot coinciding with stem. Place remaining valve seat in body with contoured side down and against the ball valve. 2 Place o-ring on cap nut and install cap nut in body and tighten (Torque to 150-400 inch pounds). TESTING Perform leakage test on reassembled or rebuilt valve. WARNING!PLEASE READ AND FOLLOW THESE INSTRUCTIONS TO AVOID PERSONAL INJURY OR DEATH: When working on or around a vehicle, the following general precautions should be observed at all times. Park the vehicle on a level surface, apply the parking brakes, and always block the wheels. Stop the engine and remove ignition key when working under or around the vehicle. [. . . ] 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. [. . . ]