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TM10-3930-660-34
16-12.1. INNER BOOM - REPLACE/REPAIR (Contd)
5. USING HOIST AND SLING TO MOVE INNER BOOM,
CHECK FOR CLEARANCE OF 0.01 TO 0.13 INCH
BETWEEN INNER BOOM SURFACE AND WEAR PADS.
IF NECESSARY, ADD OR SUBTRACT SHIMS (50, 51, 59
AND 60) UNTIL CLEARANCE IS WITHIN SPECIFICATION.
NOTE
Be sure one foot long wood block placed between flanges of
outer boom (2) and intermediate boom (11) during step la, is still
in place.
6. PARTIALLY INSTALL INNER BOOM (31).
CAUTION
To prevent damage to hoses (13, 14 and 15), and boom
electrical cable (25), have assistant pull rope attached to
boom electrical cable (25) and hoses (13, 14 and 15) at
rear of outer boom (2).
a. Push inner boom (31) into intermediate boom (11) until
approximately 4 feet of inner boom (31) extends from
front of intermediate boom (11).
b. Position hoses (13, 14 and 15), and boom electrical
cable (25) into shives on top side of hose pulley (39).
c. Untie rope from anchor (37) a rear of outer boom (2).
Tie same rope end to hose pulley support bracket (40).
d. Using chain, rope, or hand winch, attach inner boom
(2) and intermediate boom (11) together.
e. Pull inner boom (31) and intermediate boom (11) from
outer boom (2) as an assembly until boom hose pulley
(39) and rope end are visible through hole near
tensioner (20). 16-69
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