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TM-9-2320-361-24-2 Page 302

TM-9-2320-361-24-2 Field Maintenance Manual Volume 2 for M44A2 Series Trucks

Page 302 of 1144


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TM 9-2320-361-24-2 0268 00 0268 00-2 FUEL TANK MANHOLE COVER MAINTENANCE (M49A2C) (Contd) WARNING Diesel fuel is flammable. Do not perform fuel system procedures near open flames. Injury or death to personnel may result. NOTE Cover manhole opening in tank to avoid contamination. FILLER CAP REMOVAL 1. If equipped, remove antipliferage seal (19) from filler cap (16) and tank body (20). 2. Remove S hook (17) and chain (18) from fuel tank (20). 3. Remove S hook (17) from filler cap (16). 4. Remove filler cap (16) from filler hole (21). MANHOLE COVER REMOVAL 1. Remove nut (14), washer (15), screw (9) and clamp ring (12) from manhole cover (10) and tank body (13). 2. Remove manhole cover (10) and gasket (11) from tank body (13). Discard gasket (11) MANIFOLD MANHOLE COVER REMOVAL 1. Remove nut (22), washer (23), screw (26), and clamp ring (25) from manhole cover (28) and tank body (24). 2. Remove manhole cover (28) and gasket (27) from tank body (24). Discard gasket (27). DISASSEMBLY 1. Remove nut (31), springwell (30), spring (29), and screw (8) from fill cover (6) and latch (7). 2. Unscrew vent valve (1), and remove washer (2), gasket (3), fill retainer (4), fill gasket (5), and fill cover (6). Discard fill gasket (5) and gasket (3). INSPECTION 1. Inspect manhole cover (28), spring (29), and clamp ring (25) for cracks, bends, and damage. Replace manhole cover (28), spring (29), or clamp ring (25) if cracked, bent, or damaged. 2. Inspect vent valve (1) for stripped threads. Replace vent valve (1) if threads are stripped or damaged. ASSEMBLY 1. Install new fill gasket (5), fill retainer (4), new gasket (3), washer (2), and vent valve (1) on fill cover (6). 2. Install springwell (30) and spring (29) on fill cover (6) and latch (7) with screw (8) and nut (31). MANIFOLD MANHOLE COVER INSTALLATION 1. Install new gasket (27) and manhole cover (28) on tank body (24). 2. Install clamp ring (25) around manhole cover (28) and tank body (24) with screw (26), washer (23), and nut (22). 3. Fill fuel tanks (TM 9-2320-361-10) and check for leaks.