Maeda CC1485S-1, Operation Manuals, Page: 312 / 370

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1. PRECAUTIONS OF FLY-JIB OPERATION
• The Fly-jib is installed to the Main boom with four position pins. The Fly-jib tilt angle is
adujusted by extending or retracting of the angle adjuster rod, then the Fly-jib is fixed to the
angle by one position pin. The Fly-jib consists of two sections and another position pin fixes
the 1st and 2nd section. Prior to starting operation, always ensure these three position pins
are inserted in the correct positions and secured by the linchpins. If the linchpins are not
secure, the pins may drop out and the Fly-jib will collapse which may cause a serious hazard.
• Whenever the Fly-jib is installed, it is essential to re-connect the over-hoist detector harness
from the Main boom detector to the Fly-jib detector. Also, always ensure the over-hoist
detector of the Fly-jib is working correctly before starting operation. In the event that the
over-hoist detector mis-functions, it may cause the hook or hoisted load to drop and result in a
serious hazard.
• Whenever the Fly-jib is installed, ensure that the number of the Fly-jib sections used and the
indication in the moment limter for the Fly-jib are identical, before starting the Fly-jib
operations. Otherwise, it may cause serious accidents such as damage to the Fly-jib or the
machine tipping resulting in death or serious injury.
• Whenever the Fly-jib is installed, always keep the engine speed in low idling so that the
machine is operated in low speed. Sudden lever operation may produce excessive load to the
Fly-jib which may cause damage to the Fly-jib resulting in a serious accident.
• When the Fly-jib is installed, any error in crane operations may deform brackets or crack
welded joints which may result in collapsing of the Fly-jib. Prior to starting operations, always
check each area of the Fly-jib to ensure it has no deformation or cracked welded joints.
• The Fly-jib is stowed to the side of the Main boom and fixed to it with three position pins. When
installing or stowing the fly-jib, always ensure all three position pins are inserted in the correct
position and secured by their linchpins. Otherwise, if any of the pins drop out, the Fly-jib will
detach from the main boom and fall off, which may cause a serious hazard.
• When the Fly-jib is stowed, always re-connect the over-hoist detector harness from the Fly-jib
detector to the Main boom detector. Always ensure the over-hoist detector of the Main boom is
working correctly before starting operation. In the event that the over-hoist detector
mis-functions, it may cause the hook or hoisted load to drop and result in a serious hazard.
• This section of the manual applies only to a machine with the Fly-jib installed to the Main
boom. If the Fly-jib is removed from the Main boom, the Moment limiter must be reset
accordingly. Contact our sales partner in every such event. If the moment limiter is not reset
correctly, operation of the machine may result in a serious hazard such as machine damage or
tipping over.
• For all other safety precautions not covered in this section, refer to the section “SAFETY”.