TM 9-2320-366-10-2
(2) Lower inner tube (5) to down position with handle (4).
(3) Install pin (2) in mast (3).
(4) Install clevis pin (1) in pin (2).
g. Lower Mast (from Full Height) (M1089 Only).
(1) Remove clevis pin (1) and pin (2) from handle (3).
(2) Remove clevis pin (4) and pin (5) from mast (6).
2-871