TM 9-2320-209-20-3-3 (2) Truck M50A3. FRAME 1 Soldier A 1. Open pump compartment doors. 2. Using 7/8-inch wrench, unscrew and take off two nuts (1). Soldier B 3. Take out two bolts (2). 4. Take off two halves of coupling clamp (3). 5. Slide coupling gasket (4) toward rear of truck. GO TO FRAME 2 18-296