TM 10-4320-226-14SECTION II. DIRECT SUPPORT TROUBLESHOOTING5.4 TROUBLESHOOTING.Use the malfunction index to locate specific troubleshooting procedures containedin table 5-1.After locating the listed malfunction, perform the test/inspectionsand corrective actions in the order listed in table 5-1.The malfunction index andTable 5-1 cannot list all the malfunctions that may occur, all the test andinspections needed to find the fault, or all the corrective actions needed tocorrect the fault.If the equipment malfunction is not listed or actions listed donot correct the fault, notify your supervisor.MALFUNCTION INDEXMalfunction Numberin Table 5-1Engine will not start. . . . . . . . . . . . . . . . . . . . . . . . . . 1Engine starts and runs erratically after warmup . . . . . . . . . . . . . 2No or low suction or discharge pressure . . . . . . . . . . . . . . . .3Pump noisy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4TablE 5-1.Direct Support Troubleshooting Table.MALFUNCTIONTEST OR INSPECTIONCORRECTIVE ACTION1.ENGINE WILL NOT START.Step 1.Check injection pump gear alignment. (Bolts should not be againstside of slot).a.Time injection pump by removing and installing fuel injectionpump (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 forslippage.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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