TM 9-2320-209-10-1
FRAME 4
1. Put trunion (1) through ring ends (2) of boom chains and yoke ends (3) of both
gin poles.
2. Turn trunion (1) to right until it is locked into position.
3. Put A-frame sheave (4) into trunion (1), make it fast with retaining pin (5)
and two cotter pins (6).
GO TO FRAME 5
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