TM-9-2320-272-24-3

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

TECHNICAL MANUAL; UNIT, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL; VOLUME 3 OF 4

JUNE 1998

TM-9-2320-272-24-3 - Page 480 of 799

TM 9-2320-272-24-3

4-149. DUMP SUBFRAME REPLACEMENT (Contd)

NOTE

l

Cross fittings to hoist cylinder hoses must be disconnected from

the cross fittings first. Then hoses can be removed from hoist

cylinders.

l

Have drainage container ready to catch oil.

l

Tag hoses for installation.

3.

Disconnect three hydraulic hoses (6), (10), and (12) from right cross fitting (9).

4.

Disconnect three hydraulic hoses (5), (7), and (11) from left cross fitting (8).

5.

Disconnect two hydraulic hoses (6) and (10) from right and left cylinder ports (1) and (2).

6.

Disconnect two hydraulic hoses (7) and (11) from right and left cylinder ports (4) and (13).

7.

Disconnect two hydraulic hoses (5) and (12) from safety lock cylinder (3).

4-744