Section Il. TROUBLESHOOTING PROCEDURES

TM9-2320-270-20-1

Section Il. TROUBLESHOOTING PROCEDURES

The troubleshooting procedures in this section will give you information to find, isolate, and correct

Truck Tractor.

problems that may have been found during operation or maintenance of the

TROUBLESHOOTING

The troubleshooting table lists the common malfunctions that you may find during the operation or

maintenance of the M911 Truck Tractor or its components. You should perform the test/inspections

and corrective actions in the order listed.

This manual can not list all malfunctions that may occur, or all tests or inspections and corrective

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

supervisor.

EXPLANATION OF COLUMNS

Malfunction Visual or operational indication that something is wrong with the Truck Tractor.

Test/Inspection Procedure to isolate the problem to a component or system.

Corrective Action Procedure to correct problem.

TROUBLESHOOTING

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

ENGINE

1. ENGINE FAILS TO CRANK.

Step 1.

Open left side of hood and remove left side panel (TM 9-2320-270-10).

Make sure gear selector is in neutral position. Turn ignition key to

START position (instrument paneI VOLTMETER shows voltage) and listen to

starter (1) and solenoid (2). Turn ignition key to OFF position.

a. If starter (1) grinds, go to step 17.

b. If starter (1) spins, replace it (page 4-228).

c. If solenoid (2) thumps, replace starter (page 4-228).

d. if instrument panel VOLTMETER showed voltage when ignition

key was turned, go to step 8.

3-4