AIR CLEANER & MOUNTING GP 1189881 - Caterpillar

1. Put the machine on level ground. Lower all equipment to the ground, put blocks in front and in back of the wheels so the machine cannot move. Shut off the engine.2. Remove all of the air pressure from the air reservoirs and air system. Make sure the lines to and from the air dryer are at atmospheric pressure.3. Disconnect the unloader line from the end cover of the air dryer. Disconnect the wire at the air dryer. To better show the disassembly and assembly of the air dryer, it has been removed from the machine. 4. Loosen the bolts (1) and turn the clamps (2) 90° as shown. 5. Push in on end cover assembly (5).6. Put a screw driver in notch (3) and remove snap ring (4). 7. Remove end cover assembly (5). 8. Using a 3/4 in. socket wrench, remove the oil filter (6), the desiccant cartridge (7) and desiccant sealing plate (8) as an assembly. 9. Remove the nut (9) and desiccant sealing plate (8). 10. Remove the O-ring seals (13).11. Remove the clip (10) and ball check valve (11) under the clip.12. Clean the desiccant plate in a solvent. Make sure the purge valve orifice (12) and check valve seat are open and clean. 13. Put some of the lubricant