TM-9-2320-272-24-1

TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)

TECHNICAL MANUAL; UNIT, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL; VOLUME 1 OF 4

JUNE 1998

TM-9-2320-272-24-1 - Page 195 of 1015

TM 9-2320-272-24-1

Table 2-3. Electrical Troubleshooting (Contd).

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

Test 7. Test positive cable 6 from batteries to starter solenoid.

Step 1.

Set multimeter to lo-volt range.

Step 2.

Connect multimeter positive lead to positive terminal point on batteries and negative

lead to positive terminal on starter solenoid.

Step 3.

Crank engine and observe multimeter. A voltage reading exceeding 0.4 volt indicates

loose or corroded connection.

Clean and tighten connections at batteries, starter, and chassis (para. 3-124).

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