Fly Jib ups and downs and telescopic operations:
1. Follow the fly jib installation steps to select the fly jib to the
working state (W) and fix it firmly.
2. Turn up the fly jib work switch (No. 8) of the operation console
to fly jib up-and-down mode. Push forward or pull back to operate the
No. 3 handle, the fly jib realizes ups and downs.
3. Set the fly jib work switch (No. 8) of the operation console to
the middle fly jib telescopic mode. Push forward or pull back to
operate the No. 3 handle, and the fly jib can extend and retract.
Fly jib storage operation:
1. Fully retract the fly jib.
2. Follow the fly jib removal steps to rotate the fly jib to the
stowed state (S) and fix it firmly.
Note: The operating modes of the fly jib and the main boom are
interlocked. When one mode works, the other mode does not work.