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TM 10-4320-343-14
SECTION II. DIRECT SUPPORT TROUBLESHOOTING
5.4 TROUBLESHOOTING.
Use the malfunction index to locate specific troubleshooting procedures contained
in table 5-1.
After locating the listed malfunction, perform the test/inspections
and corrective actions in the order listed in table 5-1.
The malfunction index and
Table 5-1 cannot list all the malfunctions that may occur, all the test and
inspections needed to find the fault, or all the corrective actions needed to
c o r r e c t t h e f a u l t.
If the equipment malfunction is not listed or actions listed do
not correct the fault, notify your supervisor.
MALFUNCTION INDEX
Malfunction Number
in Table 5-1
Engine will not start . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Engine starts and runs erratically after warmup . . . . . . . . . . . . . 2
No or low suction or discharge pressure . . . . . . . . . . . . . . . .
3
Pump noisv . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Table 5-1.
Direct Support Troubleshooting Table.
MALFUNCTION
TEST OR INSPECTIN
CORRECTIVE ACTION
1.
ENGINE WILL NOT START.
Step 1.
Check injection pump gear alignment.
(Bolts should not be against
s i d e o f s l o t ).
a .
Time injection pump by removing and installing fuel injection
pump (paragraph 5.5.5).
b .
Replace engine (paragraph 5.5.1).
Step 2.
Test nozzles (paragraph 5.5.6)
Replace defective nozzles (paragraph 5.5.7).
Step 3.
Remove Idler Pulley and inspect fuel injection timing gear for
slippage.
Time fuel injection pump (paragraph 5.5.2)
Step 4.
Check compression (paragraph 5.5.3).
Replace engine (paragraph 5.5.1).
5-3
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