TM-9-2320-272-23-1

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

TECHNICAL MANUAL; FIELD MAINTENANCE MANUAL; VOLUME 1 OF 5

SEPTEMBER 2012

TM-9-2320-272-23-1 - Page 448 of 1313

FIELD MAINTENANCE

LOSS OF COOLANT

INITIAL SETUP:

Tools and Special Tools

Tool Kit, General Mechanic's: Automotive

(Volume 5, WP

0826, Table 1, Item 56)

Personnel Required

(2)

References

Point to Point Schematics

Volume 2, WP

0229

Volume 2, WP

0233

Volume 2, WP

0249

Volume 2, WP

0280

Volume 2, WP

0281

Volume 2, WP

0284

Volume 2, WP

0285

References (cont.)

Volume 2, WP

0286

Volume 2, WP

0287

Volume 2, WP

0293

Volume 2, WP

0294

Volume 2, WP

0299

Volume 3, WP

0380

Volume 3, WP

0382

Volume 3, WP

0383

Volume 3, WP

0447

Volume 3, WP

0448

Equipment Condition

Vehicle parked and engine shut down.

(TM

9-2320-272-10)

TROUBLESHOOTING PROCEDURE

LOSS OF COOLANT

NOTE

Conduct these malfunction tests if there is loss of coolant. This procedure will check for leaks

from cooling system components, leaks or damage to transmission cooler, aftercooler leaks

and leaks or damage to oil cooler.

TM 9-2320-272-23-1

0029

0029-1