ELECTRICAL SYSTEM - TM-9-2320-273-100176

TM 9-2320-273-10

Table 3-1. Troubleshooting - Continued

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

Step 2. If LOCK indicator light stays on after you have given system time to

disengage, excessive driveline windup may have occurred.

Back up slowly, and check to see whether LOCK indicator

light goes off. If indicator light remains on, notify.

Organizational Maintenance.

ELECTRICAL SYSTEM

ONE OR MORE OF THE LIGHTING SYSTEMS NOT WORKING.

Step 1. Check to make sure appropriate switch(es) are in the ON position and

blackout switch is in NORMAL position. if tractor is coupled to semi-

trailer and problem is with semitrailer lighting system, check to make

sure that intervehicular cable is connected securely between tractor

and semitrailer.

Put appropriate switch(es) in the ON position. If

necessary, securely connect intervehicular cable.

Step 2. Troubleshoot semitrailer.

If your tests, inspections, and corrective actions fail

to solve problem, notify Organizational Maintenance.

ENGINE

ENGINE FAILS TO CRANK WHEN STARTER BUTTON IS DEPRESSED.

Step 1. Check to make sure the engine run key switch is in the ON (right)

position.

Move switch to ON position.

Step 2. Check to make sure transmission ratio selector lever is in NEUTRAL (N)

position.

Move selector lever to N.

Step 3. Inspect for dirty, loose or broken battery cables.

Clean dirty cables. Tighten loose connections at

batteries, ground, and starter. If cables are broken,

notify Organizational Maintenance.

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