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 TM 55-1905-219-14-2
2-66.
MAIN MAST-LOWERING (Cont).
Stay clear of the mast while it is being lowered.
(6)
Lower the mast until it is almost horizontal.
(7)
Remove signal halyard lines (3).
(8)
Remove light hoist line and guides (2).
(9)
Remove the nuts, washers, and bolts that attach the yardarm to the yardarm pivot bracket (6).
(10)
Rotate the yardarm clockwise.
(11)
Place the directional control valve (5) in the lower position. Lower the mast until it is completely lowered.
(12)
Replace the bolts, washers, and nuts in the yard arm pivot bracket (6).
(13)
Install the tie down on the mast pillow block (7).
(14)
Secure yardarm to yardarm stowage bracket (8).
(15)
Secure aft strut (9) to pad.
(16)
Replace stanchions and life lines as required.
c. Engine Access Room.
Press the STOP switch (10) on the centralized hydraulic system.
2-366
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