TM 5-4310-377-13
Table 4-1. Forward Intermediate Maintenance Troubleshooting.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION K
1.
SEVERE VIBRATION.
Disassemble and inspect crankshaft and bearings (para. 4-2).
Replace defective crankshaft or bearings.
2.
ABNORMAL NOISE.
Disconnect piping from cylinder heads and remove cylinder heads. Remove four bolts (1), eight washers (2),
cylinder (3), and cylinder gasket (4). Remove two bolts (5), piston and connecting rod (6), and rod cap (7). Repeat
for two other pistons. Remove pulley (8). Remove four bolts (9), four washers (10), bearing cover (11). Remove
crankshaft (12).
Inspect connecting rods for signs of wear and burning.
Inspect crankshaft for damage.
Inspect bearings for
damage. Inspect pistons and cylinders for damage.
Replace any defective parts and reassemble air compressor.
4-2
