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mounting bracket strap. Torque the upper mount- 18. Connect and tighten the three air lines. Connect the harness connector to the heater and thermo- 19. Start the engine, build the air pressure, and check the air brake system for leaks. If any air Bendix AD–IP Air Dryers 1. Park the vehicle on a level surface, apply the 2. Using a wrench or a socket, loosen the desiccant 3. Pull the cartridge bolt out of the cover and re- WARNING Do not attempt to disassemble the desiccant car- sembly could release the spring, resulting in per- 4. Remove and discard both O-rings from the car- 5. Using a clean rag, wipe clean the inside of the 6. Inspect the end cover for physical damage, then 7. Clean and inspect the bolt, paying attention to IMPORTANT: Use only the grease supplied with 8. Lubricate the O-rings, bolt O-ring grooves, seal- 9. Install both O-rings on the cartridge bolt, then, 10. Install the desiccant cartridge on the end cover, making sure the cartridge is properly seated and NOTE: It may be necessary to rotate the car- 11. Using a wrench or socket, tighten the desiccant cartridge bolt 70 lbf·ft (95 N·m). Do not over- 12. Before placing the vehicle in service, perform the test below. 12.1 Close all reservoir drain cocks. 12.2 Build system pressure to governor cut- 12.3 Fan the service brakes to reduce system 12.4 Check for excessive leakage around the f420544a 1 & 9 2 3 4 5 6 7 8 09/20/94 Fig. 2, End Cover to Housing Torque Pattern Brakes 42 42/3 |