DOUBLE CHECK VALVE AND PRESSURE PROTECTION VALVE REPLACEMENT

TM-5-3810-306-20 Container Crane 40-Ton Rough Terrain Model RTB75CC Manual
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TM 5-3810-306-20 DOUBLE CHECK VALVE AND PRESSURE PROTECTION VALVE REPLACEMENT TOOLS: General mechanic’s tool kit: automotive (5180-00-177-7033) SUPPLIES: None EQUIPMENT CONDITIONS: Wheels are chocked. Disconnect ground cable at shunt. (Refer to page 8-109.) Air system is purged. (Refer to page 11-2.) REMOVAL: 1. REMOVE DOUBLE CHECK VALVE (1) AND PRESSURE PROTECTION VALVE (8). a. Tag and remove air line (2) from elbow (3) on double check valve (1). b. Tag and remove two air lines (4 and 5) from tee (6) and elbow (7) attached to double check valve (1). c. Remove tee (6), pressure protection valve (8) and elbow (7). d. Remove double check valve (1). INSTALLATION: 1. INSTALL DOUBLE CHECK VALVE (1) AND PRESSURE PROTECTION VALVE (8). a. Install double check valve (1). b. Install tee (6), pressure protection valve (8) and elbow (7) on double check valve (1). c. Remove tags, plugs and connect air lines (2, 4 and 5). 2. CONNECT GROUND CABLE AT SHUNT. (REFER TO PAGE 8-109.) 3. START-UP ENGINE AND ALLOW AIR PRESSURE TO BUILD UP. (REFER TO TM 5-3810-306-10.) 4. CHECK ALL AIR OPERATED FUNCTIONS. (REFER TO TM 5-3810-306-10.). END OF TASK 11-24

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