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 586 of 1313

FIELD MAINTENANCE

SHIMMY

INITIAL SETUP:

Tools and Special Tools

Tool Kit, General Mechanic's: Automotive

(Volume 5, WP

0826, Table 1, Item 56)

High Boy Jack Stand

(Volume 5, WP

0826, Table 1, Item 24)

Personnel Required

(2)

References

Point to Point Schematics

Volume 3, WP

0479

References (cont.)

Volume 3, WP

0480

Volume 3, WP

0481

Volume 3, WP

0482

Volume 3, WP

0483

Volume 3, WP

0484

Volume 3, WP

0485

Volume 3, WP

0493

Equipment Condition

Vehicle parked and engine shut down.

(TM

9-2320-272-10)

TROUBLESHOOTING PROCEDURE

SHIMMY

NOTE

Conduct these malfunction tests if shimmy is detected. This procedure will check for loose

or missing wheel lug nuts, damaged or bent wheels, improper wheel bearing adjustment,

front wheel alignment, and loose front axle steering knuckles.

TM 9-2320-272-23-1

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