TM-9-2815-202-34 Technical Manual for 8V71T Engines for M109 Howitzer Download
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TM9-2815-202-34 5.1-11. AIR INLET HOUSING REPLACEMENT (Cont) b. Disassembly (1) (2) (3) (4) (5) (6) (7) (8) Secure air inlet housing assembly (5) in soft-jawed vise with side of by-pass valve cover (9) facing upward. Remove elbow fitting (2) from by-pass valve cover (9). Firmly secure spring-loaded mechanisms during disassembly. The spring can eject parts at high speed if released in an uncontrolled manner. Personal injury may result. Insert threaded rod (10) through hole in by-pass valve cover (9), then thread rod into by-pass valve assembly (11) located in air inlet housing. Install 5/16 inch flat washer (12) and 5/1 6-18 inch hex nut (13) on threaded rod and tighten to compress spring (14) between cover and by-pass valve assembly. Remove four bolts (15) and four Iockwashers (16) securing cover (9) to air inlet housing (5). Discard Iockwashers. Remove cover (9) and valve assembly (11), while under compression with threaded rod (10). Remove nut (13), flat washer (12), cover (9), gasket (17), and spring (14) from by-pass valve assembly (11 ). Remove threaded rod (10) from by-pass valve. Place by-pass valve assembly (11) on bench with ring side up and remove ring (18). Repeat steps 1 thru 7 above for opposite side of air inlet housing (5). 5-88 Change 1