TM  10-3930-638-24&P 2-16.  SPARK  ARRESTING  MUFFLER  AND  EXHAUST  PIPE  MAINTENANCE  (cont) STEP LOCATION ITEM ACTION REMARKS CLEANING   (cont) 8 All parts Clean Use  cleaning  solvent  P-D-680.  Dry  thor- oughly with compressed air. Remove rust with stiff wire brush INSPECTION 9 All parts Replace if cracked, damaged, worn, dented,  or  threads  damaged INSTALLATION/REPLACEMENT 10 Engine  com- a. Bracket (27) partment b. Two lock wash- ers  (26)  and cap screws (25) c. Gasket (24) d. Muffler (23) e. Two washers (22) and cap screws (21) f. Two washers (20), lock washers  (19) and nuts (18) g. Two cap screws (17), lock washers  (16) and nuts (15) 11 Radiator a. Bracket ( 14) shroud, top b. Two cap screws (13), lock washers (1 2), and nuts (11) c.  Support  (10) and  bracket (9) d. Four cap screws (8), lock wash- ers (7), and nuts (6) 12 Top of a. Top hood Install vehicle b. Exhaust pipe Install (5) c. TWO U bolts (4) Position d. Two clamps (3) Position e. Four lock wash- Install ers (2) and nuts (1) Inspect Position Install Position Position Install Install Install Position Install Position Install Para 2-53d 2-75