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Komatsu HB215LC-2 Shop Manual page 21

Hydraulic excavator

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• When installing wire ropes to an angular load,
apply pads to protect the wire ropes. If the load
is slippery, apply proper material to prevent the
wire rope from slipping.
• Use the specified eye bolts and fix wire ropes,
chains, etc. to them with shackles, etc.
• Apply wire ropes to the middle part of the hook.
a Slinging near the tip of the hook may cause
the rope to slip off the hook during hoisting.
The hook has the maximum strength at the
middle part.
• Do not use twisted or kinked wire ropes.
Precautions for slinging up
• Wind in the crane slowly until wire ropes are
stretched. When settling the wire ropes with the
hand, do not grasp them but press them from
above. If you grasp them, your fingers may be
caught.
• Wind in the crane slowly until wire ropes are
stretched. When settling the wire ropes with the
hand, do not grasp them but press them from
above. If you grasp them, your fingers may be
caught.
• After the wire ropes are stretched, stop the
crane and check the condition of the slung load,
wire ropes, and pads.
• If the load is unstable or the wire rope or chains
are twisted, lower the load and lift it up again.
• Do not lift up the load at an angle.
Precautions for slinging down
HB215LC-2
00 Index and foreword
Foreword, safety and general information
• When lifting down a load, stop it temporarily at
30 cm above the floor, and then lower it slowly.
• Check that the load is stable, and then remove
the sling.
• Remove kinks and dirt from the wire ropes and
chains used for the sling work, and put them in
the specified place.
Precautions for using mobile crane
a Read the Operation and Maintenance Manual of
the crane carefully in advance and operate the
crane safely.
Precautions for using overhead traveling crane
When lifting a heavy load (25 kg or more),
k
k
use a hoist crane or similar device. The
weight of a part that is 25 kg or more is
indicated with the symbol 4
Disassembly and assembly.
• Before starting work, check the wire ropes,
brake, clutch, controller, rails, over winding
prevention device, ground fault circuit interrupter
for electric shock prevention, crane collision
prevention device, and energizing warning lamp,
and check the following safety items.
• Observe the signals for sling work.
• Operate the hoist at a safe place.
• Be sure to check the directions of the direction
indication plate (north, south, east and west) and
the operating button.
• Do not sling a load at an angle. Do not move the
crane while the slung load is swinging.
• Do not raise or lower a load while the crane is
moving longitudinally or laterally.
• Do not drag a sling.
• When lifting up a load, stop it just after it leaves
the ground and check safety, and then lift it up.
• Consider the travel route in advance and lift up a
load to a safe height.
• Place the control switch in a position where it is
not an obstacle to work and passage.
• After operating the hoist, do not swing the
control switch.
• Remember the position of the main switch so
that you can turn off the power immediately in an
emergency.
• If the hoist stops because of a power failure, turn
the main switch OFF. When turning on a switch
after it is turned OFF by the ground fault circuit
interrupter, check that the devices related to that
switch are not in operating condition.
• If you find an obstacle around the hoist, stop the
operation.
• After finishing the work, stop the hoist at the
specified position and raise the hook to at least 2
m above the floor. Do not leave the sling
installed to the hook.
4 in
00-19

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