TM 10-4320-226-14
Table 4-2.
Unit Troubleshooting Table.
(continued)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
3.
4.
5.
6.
ENGINE SPEED DOES NOT ADJUST (continued).
Step 2.
Check for seized fuel control lever at injector pump.
a. Free fuel control lever.
b. Notify direct support maintenance.
ENGINE STARTS OR RUNS ERRATIC AFTER WARMUP.
Step 1.
Check for blockage in fuel strainer.
a. Clean fuel feed pump strainer (paragraph 4.10.17).
b. Replace fuel filter (paragraph 4.10.18).
Step 2.
Check valve clearance (paragraph 4.10.23).
b.
Adjust valve clearance.
c.
Notify direct support maintenance.
OIL PRESSURE READING LOW.
Step 1.
Inspect for leaks in lubrication system.
Tighten all connections to pumps, lines, filter, pressure gauge,
and cooler.
Step 2.
Remove and check low oil pressure sending unit for obstructions.
(paragraph 4.10.19).
a. Clear obstructions or replace oil pressure sending unit.
b. Notify direct support maintenance.
AMMETER READING TOO LOW.
Step 1.
Step 2.
Step 3.
Check alternator V-belt tension.
Adjust V-belt (paragraph 4.10.7).
Check for loose connections at alternator.
Tighten wiring connections at alternator.
Test alternator (paragraph 4.10.11).
a.
Replace alternator (paragraph 4.10.12)
b.
Notify direct support maintenance.
4-9
