TM 9-2320-209-20-3-1 1. Take off NOTE Muffler (1) may be stuck to bypass valve use hammer and chisel to loosen muffler. muffler (1) by turning it back and forth. 2. Spread muffler loop clamp (3) and take it off. GO TO FRAME 6 (2). If needed, TA 080705 5-22