TM-9-2320-272-10

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

TECHNICAL MANUAL; OPERATOR'S MANUAL

SEPTEMBER 2004

CHANGE 2

TM-9-2320-272-10 - Page 112 of 481

Key

Item and Function

13

SPARE TIRE DAVIT BOOM is extended to allow spare tire to be lifted and

guided over side of vehicle. Davit boom is installed on all M939/A1/A2 series

vehicles except M929/A1/A2, M930/A1/A2, and M934/A1/A2 models which

are equipped with an eyebolt or special divot, and M936/A1/A2 models which

use the vehicle boom to lift and lower spare tire.

14

CHAIN FALL lifts and lowers spare tire (all models except M936/A1/A2).

15

WHEEL BRACE holds tire in place once hinged wheel brace (16) is secured.

16

HINGED WHEEL BRACE (all models except M929/A1/A2, M930/A1/A2, and

M936/A1/A2) is removed before spare tire removal.

17

WING LUG secures hinged wheel brace (16) to spare tire.

18

RETAINING PIN secures wing lug (17) to hinged wheel brace (16) for

traveling.

19

SPARE TIRE WING LUG (M936/A1/A2 models) secures spare tire to wrecker.

TM 9-2320-272-10

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2-3. CHASSIS CONTROLS AND INDICATORS (Contd)