Section IV. UNIT TROUBLESHOOTING - TM-9-2350-238-20-10069

TM 9-2350-238-20-1

Section IV. UNIT TROUBLESHOOTING

2-11. TROUBLESHOOTING INFORMATION.

a. The symptom index can be used as a quick guide to troubleshooting. Common malfunctions

are listed in alphabetical order under each major assembly, which occur in MAC order, with a page

number reference to the troubleshooting table where a test or inspection and corrective action are

provided.

b. The unit troubleshooting table lists the malfunction, the test or inspection indicating the

malfunction, and the necessary corrective action.

c. If the malfunction still exists after all listed unit maintenance corrective actions have been

performed, notify direct support maintenance.

d. The electrical circuit troubleshooting table lists the procedures necessary to inspect/repair the

applicable electrical circuits.

e. This manual cannot list all malfunctions that may occur, nor all tests or inspections and

corrective actions. If a malfunction is not listed or is not corrected by listed corrective actions, notify

your supervisor.

UNIT TROUBLESHOOTING INDEX

Troubleshooting

Procedure

Page

ENGINE

Engine cranks but does not start; and electrical circuits are operating . . . . . . . . .

Engine cranks slowly and lights dim while cranking . . . . . . . . . . . . . . . . . . . . . .

Engine consumes too much fuel.... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Engine consumes too much oil...... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Engine does not crank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Engine does not develop full power, runs unevenly, stalls, or labors . . . . . . . . . .

Engine has high oil pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Engine has low oil pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Engine overheats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Excessive exhaust smoke (black smoke) after engine warmup . . . . . . . . . . . . . .

Excessive exhaust smoke (white smoke) after engine warmup . . . . . . . . . . . . . .

COOLING SYSTEM

Radiator cooling vaneaxial fan does not operate . . . . . . . . . . . . . . . . . . . . . . . . 2-59

Generator does not operate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-59

2-43