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 151 of 481

17

(contd)

18

Before

During

Medium

Wrecker

(contd)

Steering/

Swaying

b.

Operate crane through full

range of elevation, rotation, and

boom extension to determine per-

formance of crane boom (2), hoist

(1), and crane controls (5).

Movement should be free and with-

out hydraulic leaks.

c.

Inspect hoist cable (3) for

breaks, kinks, and frays. Check

sheaves (4) for damage.

DRIVER

Check vehicle steering response for

unusual free play, binding, wan-

der, or shimmy.

b.

Crane is

inoperative or any

class III leakage

is evident.

c.

Cable bro-

ken, kinked,

frayed, or missing.

Sheaves missing

or damaged.

Loose or binding

steering action or

steering wheel dif-

ficult to turn. Steer-

ing inoperative.

2-52

Table 2-3. Preventive Maintenance Checks and Services for Models M939/A1/A2 (Contd).

ITEM

NO.

INTERVAL

ITEM TO

CHECK/

SERVICE

NOT FULLY

MISSION

CAPABLE IF:

TM 9-2320-272-10

LOCATION

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PROCEDURE