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 308 of 481

TM 9-2320-272-10

2-199

2-29. PREPARATION FOR SHIPMENT (Contd)

(c)

Report removal and instal-

lation of air intake extension (1) to unit

maintenance as soon as possible.

g.

Davit and Boom Removal and

Installation.

(1)

Removal (M939 series vehicles)

(a)

Remove lock pin (10) and

retaining pin (11) from boom (7).

(b)

Remove boom extension (6)

from boom (7).

(c)

Loosen setscrew (8) in

boom (7).

(d)

Remove boom (7) from

boom base (9).

(2)

Installation (M939 series vehi-

cles)

(a)

Install boom (7) in boom

base (9).

(b)

Tighten setscrew (8) in

boom (7).

(c)

Install boom extension (6)

in boom (7).

(d)

Install retaining pin (11)

in boom (8) and secure with lock pin (10).

(3)

Removal (M939A1/A2 series vehi-

cles)

(a)

Remove lock pin (17) and

retaining pin (18) from boom extension

(12) and boom (13).

(b)

Remove boom extension (12)

from boom (13).

(c)

Remove four locknuts (15),

screws (14), and boom (13) from boom

base (16).

(4)

Installation (M939A1/A2)

(a)

Install boom (13) on boom base

(16) with four locknuts (15) and

screws (14).

(b)

Install boom extension (12) in

boom (13).

(c)

Install retaining pin (18) in