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6.3 EXTENDING AND RETRACTING NO.2 FLY-JIB
6.3.1 EXTENDING NO.2 FLY-JIB CONFIGURED 0 DEGREE OR 20 DEGREES
TILT ANGLE
To extend the No.2 Fly-jib configured 0 or 20 degrees, follow the instructions below:
1. Lower the main boom to the lowest angle.
2. Pull the linchpin (25) out from the position pin (4) in the tip of
No.1 Fly-jib (2) to extract the position pin (4).
Removed position pin (4) will be necessary for the later
operation to secure the extended No.2 Fly-jib (3).
3. Continue hook un-winding operation and take hold of handles in
the both left and right side in the tip of No.2 Fly-jib (3) and pull
the No.2 Fly-jib (3) out.
4. When the No.2 Fly-jib (3) is extended, adjust both side holes of
the No.1 Fly-jib (2) and No.2 Fly-jib (3) to insert the position pin
(4). Apply the linchpin (25) to secure the position pin.
[Posture of the 20 degrees angled Fly-jib]
The posture in the figure in the right shows
that the No.2 Fly-jib is extended in accor-
dance with the procedure 1 to 3 as above.
Once configured to this length, the No.2
Fly-jib length data is transmitted to the
moment limiter, then the Fly-jib length (2)
LED of moment limiter will turn on.