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TM 9-2320-364-34-3
16-58
16-4. BOOM CABLE AND CHAIN ADJUSTMENT (CONT).
(2)
Hold flat surface of cable and remove jam nuts, and loosen adjusting nuts (5), (6), (7) and (8).
(3)
Apply grease to sliding areas of each boom section.
NOTE
All boom sections must be fully retracted to stops for adjustment.
(4)
Operate crane and fully retract outer-mid section (11), inner-mid section (10) and fly section (9). Ensure
boom sections are fully retracted by manually pushing them back to stops.
(5)
With the aid of an assistant, hold flat surface of cable and tighten adjusting nut (5) until outer-mid
section (11) just begins to move.
(6)
Hold flat surface of cable and loosen adjusting nut (5) two turns.
(7)
Manually push outer-mid section (11) completely back to stops.
(8)
With the aid of an assistant, tighten adjusting nut (6) to 60 lb-in (7 N.m) and check for 1/16 in. (2 mm) plus
or minus 1/64 in. minimum clearance between outer-mid section (11) and inner-mid section (10). If 60 lb-
in (7 N.m) can not be obtained, repeat Steps (6) through (9).
(9)
With the aid of an assistant, hold flat surface of cable and tighten adjusting nut (7) until inner-mid
section (10) just begins to move.
(10)
Hold flat surface of cable and loosen adjusting nut (7) two turns.
(11)
Manually push fly section (9) completely back to stops.
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