BOOM ASSEMBLY REPLACEMENT - continued

TM 10-3930-673-34

(5)

Start engine (TM 10-3930-673-10) and raise

boom assembly (6) as necessary to access

hoses (14 through 16). Stop engine.

WARNING

Ensure that hoses disconnected at front of

boom assembly during removal of

attachment and attachment cylinder are

closed securely using metal plugs.

Hydraulic oil under pressure can spray

from hoses causing bodily injury if hoses

are not closed securely.

(6)

Tag, mark, disconnect hoses (14 through 16)

from fittings (17 through 19) at underside of

boom assembly (6). Plug three hoses with metal caps.

(7)

Start engine (TM 10-3930-673-10). Lower

boom assembly (6) until pivot pins (20) are

just above cab. Stop engine.

WARNING

Boom assembly weighs 4100 lbs (1860

kg). Attach suitable lifting device prior to

removal to prevent possible injury to

personnel.

(8)

Support boom assembly (6) with hoist and

slings or other suitable lifting device

positioned at front of boom assembly.

(9)

Place wood block across vehicle deck behind

cab to support boom hoist cylinders (21)

TR01367

when cylinders are lowered.

(10) Remove locknut (22) and screw (23) from

pivot pin (20). discard locknut

(11) Support boom hoist cylinder (21). Remove pivot pin (20) from boom assembly (6) and boom hoist cylinder

(21).

Change 1

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