TM 9-2320-209-20-3-3 b. Replacement. NOTE If working on truck M49A1C, do frame 1. If working on truck M49A2C, do frame 2. FRAME 1 1. Using pipe wrenches, hold pipe (1) and screw on and tighten globe valve (2) so handle (3) faces back of truck. 2. Using pipe wrenches, hold globe valve (2) and screw on and tighten pipe (4). 3. Push discharge valve control lever (5) forward to close. 4. Close fuel truck rear compartment doors. END OF TASK 18-132