TM 9-2320-209-20-3-3 18-38. PUMP-TO-MANIFOLD HOSE REMOVAL AND REPLACEMENT (TRUCKS M49A1C and M49A2C). TOOLS: 3/4-inch wrench (2) 3/8-inch drive ratchet set Flat-tip screwdriver SUPPLIES: Pump-to-manifold Pump-to-manifold Pump-to-manifold Diesel fuel PERSONNEL: One hose hose upper gasket hose lower gasket EUQIPMENT CONDITION: Truck parked, engine off, handbrake set. WARNING Smoking, sparks or open flame are not allowed within 50 feet of fuel truck during this task. Fuel may burn, personnel, and a. Removal. causing explosion, injury to damage to equipment. FRAME 1 1. Open fuel truck rear compartment doors. 2. Using 3/4-inch wrenches, unscrew and take off four nuts (1) and four screws (2). 3. Lift up lower pipe (3) and take off and throw away gasket (4). GO TO FRAME 2 18-181