TM 5-4310-382-13
Table 4-1. Intermediate Direct Support Troubleshooting Procedures - Continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
3. LITTLE OR NO AIR PRESSURE BUILD-UP - Continued.
Step 2.
Inspect air compressor cylinder head for leaks or cracks.
If air compressor cylinder head leaks or is cracked, replace it (see paragraph 4-4).
4. AIR DELIVERY IS DROPPING.
Step 1.
Inspect air compressor for damaged or worn valves.
Refer to paragraph 4-4 for disassembly and inspection procedures for air compressor valves.
5. AIR COMPRESSOR IS PUMPING OIL.
Step 1.
Inspect air compressor for worn or damaged piston rings.
Refer to paragraph 4-5 for disassembly and inspection of air compressor piston rings.
6. AIR COMPRESSOR IS RUNNING TOO SLOW.
Step 1.
Inspect air compressor bearings, pistons, or crankshaft for damage.
Refer to paragraph 4-6 for disassembly and inspection of air compressor.
7. AIR COMPRESSOR MAKES EXCESSIVE NOISE.
Step 1.
Inspect air compressor for worn or damaged valve, piston rings, bearings or crankshaft.
Refer to paragraph 4-6 for disassembly and inspection of air compressor components.
8. ENGINE WILL NOT START.
Step 1.
Check engine carburetor for damage.
If carburetor is damaged, refer to paragraph 4-3 for carburetor repair.
4-2
