User manual BENDIX RE-6 RELAY EMERGENCY VALVE

[. . . ] Bendix® RE-6TM and RE-6NCTM Relay Valves RELAY PISTON EMERGENCY PISTON SERVICE PORT O-RING SEALING RING INLET AND EXHAUST VALVE EMERGENCY SUPPLY PORT RE-6TM Valve CHECK VALVE SPRING MOUNTING FLANGE SPRING DIAPHRAGM WASHER SCREW CHECK VALVE DELIVERY PASSAGE SERVICE PORT CAP SCREW RE-6 & RE-6NC Valves RESERVOIR PORT (2) TM TM EMERGENCY PORT CHECK VALVE DELIVERY PASSAGE NOT PRESENT RE-6NC VALVE ID TAG ATTACHED SEE (FIGURE 2) TM DELIVERY PORTS (4) RE-6NCTM Valve CHECK VALVE NOT PRESENT FIGURE 1 RE-6TM & RE-6NCTM RELAY VALVES RE-6TM VALVE DESCRIPTION The RE-6TM valve is used in dolly and trailer brake systems. It is a dual function valve, combining the functions of a relay valve and an emergency valve. The relay function is identical to that of a relay valve, a remotely controlled brake valve. Control pressure from the towing vehicle is routed through the trailer service line and RE-6NC SPECIAL XXXXXX SVC. [. . . ] With the brakes still applied, apply a leak check solution around the valve where the cover meets the body. If the valve does not function as described; or if leakage is excessive, repair the valve or replace it at any authorized parts outlet. REMOVAL 1. Identify, mark or label all air lines and their connections to the RE-6TM or RE-6NCTM valve. Scribe a line across the body of the valve, including the valve cover. When the assembly process is reached, the line will serve as a reference to the position of the valve cover on the valve body. Remove the RE-6 TM or RE-6NC TM valve from the vehicle. PREVENTIVE MAINTENANCE Important: Review the Bendix Warranty Policy before performing any intrusive maintenance procedures. A warranty may be voided if intrusive maintenance is performed during the warranty period. No two vehicles operate under identical conditions, as a result, maintenance intervals may vary. Experience is a valuable guide in determining the best maintenance interval for air brake system components. At a minimum, the valve should be inspected every 6 months or 1500 operating hours, whichever comes first, for proper operation. Should the valve not meet the elements of the operational tests noted in this document, further investigation and service of the valve may be required. INSTALLATION 1. Use the mounting bracket provided with the valve, or, if securing the valve to a reservoir, use a Schedule 80 (heavy wall) short couple, pipe nipple. Reconnect all air lines to the valve using the identification made during removal. Test all air fittings for excessive leakage and tighten as needed. Also, perform OPERATIONAL AND LEAKAGE TESTS before placing the vehicle back into service. DISASSEMBLY The following procedure is for reference only. Always have the appropriate maintenance kit on hand, and use its instructions in lieu of those presented here. CAUTION: The RE-6TM & RE-6NCTM valve may be lightly clamped in a bench vise during disassembly. However, over-clamping will cause damage to the valve and result in leakage and/or malfunction. If a vise is used, position the valve so the jaws bear on the supply ports on opposing sides of the valve's body. Remove the four screws that secure the cover to the body, set aside, and then slowly remove the cover. Remove and discard the sealing ring(6) from sealing ring grove located at the top of the valve body. If a spring(5) is present (positioned between the bottom side of the relay piston and the upper portion of the valve body) set aside for the assembly process. [. . . ] Install the cover to body, making certain the scribe marks line up marked in the "REMOVAL" section. Torque the cap screws to approximately 100 inch pounds. Perform OPERATIONAL AND LEAKAGE TESTS before returning the vehicle to service. CLEANING & INSPECTION 1. Using mineral spirits or an equivalent solvent, clean and thoroughly dry all metal parts. [. . . ]