Maeda MC405C-3 - Fly-Jib Safety Precautions

Section 4 – FLY-JIB SAFETY PRECAUTIONS Mini-Crawler Crane M A E D A
4-148 1/2019 MC405C-3
FLY-JIB SAFETY
PRECAUTIONS
WARNING!
• Whenever Fly-Jib is installed, it is essential
to set up outriggers (minimum outrigger
extension is permitted). Failure to do so
may cause a serious hazard, such as
tipping over or damage to the machine.
• Whenever Fly-jib is installed, you must not
travel with a hoisted load. Failure to do so
may cause a serious hazard, such as
tipping over or damage to the machine.
• The Fly-jib is fixed on main boom by four
bolts and two position pins. The Fly-jib is a
2-stage jib. Number 1 and 2 fly-jibs are fixed
by one position pin.
Before crane operation, confirm two
following points.
1. Confirm the four bolts and nuts are firmly
fixed.
2. Confirm three position pins are inserted
into correct positions and firmly fixed by
lynch-pins.
If a position pin or bolt comes out, it may
cause the fly-jib to remove resulting in a
serious hazard.
• Whenever the Fly-jib is installed, it is
essential to re-connect the over winding
detector harness from the Main boom
detector to the Fly-jib detector. Always
ensure the over winding detector of the fly-
jib is operational before starting work. In
the event that the over winding detector
mis-functions, it may cause the hook or
hoisted load to drop resulting in a serious
hazard.
• Whenever using the Fly-jib, extend jib to
second stage and set the moment limiter to
fly-jib mode before starting operation.
Before crane operation, confirm the three
position pins are inserted into the correct
positions and their lynch-pins are fitted.
Failure to do so may cause a serious
hazard, such as tipping over or damage of
the machine.
Failure to do so may cause a serious
hazard, such as tipping over or damage to
the machine.
• The fly-jib is stowed on the side of main
boom and fixed by three position pins.
Confirm that the three position pins are
inserted into correct positions and secured
by lynch-pins before you start travelling the
machine. If a position pin comes out it may
cause the fly-jib to drop resulting in a
serious hazard.
• When the Fly-jib is stowed, always re-connect
the over winding detector harness from the Fly-
jib detector to the Main boom detector. Ensure
correct operation of the over winding detector
of the Main boom before starting work. In the
event that the over winding detector mis-
functions, it may cause the hook or hoisted load
to drop resulting in a serious hazard.