TM 5-4310-360-14
5-5.
Direct and General Support Maintenance
Troubleshooting - continued.
NOTE
Before you use this table, be sure you have performed all applicable operat-
ing checks.
Table 5-1. Troubleshooting
Malfunction
Test or Inspection
Corrective Action
ENGINE
1. COMPRESSOR FAILS TO PUMP TO PRESSURE.
Step 1. Check to see if belts are improperly adjusted.
Adjust or replace belts. Refer to paragraph 4-14.
Step 2. Check for broken valve or valve spring.
Remove cylinder head and replace defective parts. Refer to paragraph 4-16.
2. COMPRESSOR KNOCKS.
Step 1. Check for loose flywheel pulley.
Tighten flywheel nut. Refer to paragraph 4-15.
Step 2. Check for broken valve or valve spring.
Remove cylinder head and replace defective parts. Refer to paragraph 4-16.
Step 3. Check for connecting rod bearings worn or rod bolts loose.
Tighten connecting rod bolts or replace connecting rod. Refer to paragraph 6-2.
3. COMPRESSED AIR CONTAINS OIL.
Step 1. Check for worn piston or piston rings.
Replace piston or piston rings. Refer to paragraph 6-2
Step 2. Check for worn or scored cylinder bore.
Replace cylinder. Refer to TM 5-2805-256-14/24P.
5-2
