TB-9-2300-378-14 Technical Bulletin for Air Induction System M48 M60 Download
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TB 9-2300-378-14 c. d. e. (7) Install 14 nuts securing elbow to air cleaner. Tighten nuts to 35 lb. ft. (47 N.m) using sequence shown in figure 6-9. Repeat sequence tightening nuts to 50 lb. ft. (68 N.m). (8) Install air cleaner on vehicle (para. (g) (2) above. Air Intake Elbow Replacement (Fig. 6-9). (1) Remove air cleaner (para. 6-13a above). (2) Remove 10 self-locking nuts securing air intake hose elbow to air cleaner housing. (3) Remove air intake hose elbow and gasket. Discard gasket. NOTE If air intake elbow is to remain off the air cleaner for a period of time, cover the air cleaner opening to prevent entry of foreign material. (4) Remove protective cover from air cleaner air intake hose elbow opening if required. (5) Inspect and clean mating surfaces of air intake hose elbow and air cleaner. (6) Position new gasket and air intake hose elbow on air cleaner. (7) Install 10 self locking nuts securing air intake hose elbow to air cleaner in sequence shown on figure 6-9. (8) Install air cleaner on vehicle (para. (g) (2) above. Filter Clog Indicator Replacement (Fig. 6-10). (1) (2) Air (1) Remove damaged or defective filter clog indicator along with adapter when engine is not operating. If a new filter clog indicator is not installed right away, install plug attached to chain securely into opening in outlet elbow. If plug has been installed into opening (1 above), remove it and install new adapter and filter clog indicator. Install plug in its original position on guard. Push reset button (early model). Cleaner Manifold Replacement (Fig. 6-11). NOTE Replacement of left or right manifold side shown. Removal. CAUTION is the same. Left Do not open top deck doors when air cleaner door assembly is open. Damage to air cleaner door may result. (a) Open top deck grille doors. (b) Loosen two clamps (view A). Remove hose from manifold tube. (c) Remove 10 screws and lockwashers securing cover to air cleaner (view A). (d) Remove cover and gasket. Discard gasket (view B). (e) Loosen four clamps (view C) securing two hoses to manifold and pre-cleaner chamber tubes. (f) Remove four screws and lockwashers securing manifold flange to air cleaner. Discard lockwashers. 6-36