TM 5-4310-387-14
Table 6-1. General Support Troubleshooting Procedures (Cont).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
6. EXCESSIVE OIL CONSUMPTION.
Check piston and connecting rod assemblies.
Replace or repair piston and connecting rod assemblies (para 6-20).
7. UNUSUAL ENGINE KNOCKS AND NOISES.
Step 1. Check governor assembly
Replace or repair governor assembly (para 6-17).
Step 2. Check piston and connecting rod assemblies.
Replace or repair piston and connecting rod assemblies (para 6-20).
Step 3. Check camshaft assembly.
Replace or repair camshaft assembly (para 6-19).
Step 4. Check crankshaft and main bearing support assembly.
Replace or repair crankshaft and main bearing support assembly (para 6-21).
8. COMPRESSOR NOISY.
Step 1. Check first stage cylinder.
Replace a damaged first stage cylinder (para 6-8).
Step 2. Check second stage cylinder.
Replace a damaged second stage cylinder (para 6-10).
Step 3. Check third stage cylinder.
Replace a damaged third stage cylinder (para 6-12).
Step 4. Check first stage piston and connecting rod assembly.
Replace or repair a damaged first stage piston and connecting rod assembly (para
6-9).
6-4
