TM 9-2320-260-10
(3) Extending and Retracting Boom Extension.
(a)
(b)
(c)
EXTEND
(d)
(e)
(f) Retract boom (4) to aline with holes (5) in boom extension (3) by pulling
crowd control lever (15) to RETRACT position.
(g) Install lockpins (8) and secure with clips (9).
NOTE
Consult crane capacity data plate for load limits before raising or
lowering load.
Remove and stow boom jacks (1) assembly.
Remove clips (9) and lockpins (8).
Extend boom (4) all the way by pushing crowd control lever (15) forward to
position and hoist control lever (14) to DOWN position.
Assemble three-piece pushout rod (6).
Position rod (6) between brackets (7).
(h) Remove, disassemble, and stow boom extension pushout rod (6).
(i) To retract boom extension (3), remove clips (9) and lockpins (8). Pull hoist
control lever (14) to UP position, slowly, allowing block (2) to push boom extension (3)
towards boom (4) until holes (5) are alined.
(j) Install lockpins (8) and secure with clips (9).
2-170 Change 1
