INTERMEDIATE BOOM REPLACEMENT/REPAIR - continued

TM 10-3930-673-34

16-13. INTERMEDIATE BOOM REPLACEMENT/REPAIR (CONT)

NOTE

Keep wear pads and shims together in

sets.

Mark wear pads with their location on outer

boom.

Perform steps 4 and 5 for each of two wear

pads.

(4)

Remove three screws (1), lockwashers (2),

and washers (3) from underneath outer

boom(4). Discard lockwashers.

(5)

From inside outer boom (4), remove wear

pad (5), three inserts (6), spacer (7), and

shims (8).

(6)

Just forward of front of outer boom, loosely

attach lifting strap around intermediate

boom. Attach lifting strap to overhead lifting

device or overhead crane.

(7)

Using forklift attached to front of

intermediate boom (9), carefully pull

intermediate boom from outer boom until

approximately 1 ft (305mm) remains inside.

(8)

Using overhead lifting device, take up slack

in lifting strap to fully support rear of

intermediate boom (9).

(9)

Remove intermediate boom (9) from outer

boom (4).

(10) Using overhead lifting device and other

forklift at the same time, evenly lower intermediate boom and temporarily place on jackstands or suitable

supports.

(11) Remove other forklift, overhead lifting device and lifting straps from intermediate boom.

(12) Using other forklift, lift and move intermediate boom clear of work area and again place on jackstands or

suitable supports.

b. Disassembly.

(1)

Remove boom extend chain sheave (TM 10-3930-673-20).

(2)

Remove boom hose pulley (TM 10-3930-673-20).

(3)

Remove wear pads (Para 16-16).

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