2-17
CAUTIONS WHEN SLINGING
• Check the following before hoisting a load.
Attempt to hoist the load without checking may result in serious bodily accidents by a drop of the load
or tripping.
• Observe the values in the rated total load chart.
• Hoist from the center of gravity of the load.
• Check that the wire ropes of the hook block are perpendicular to the ground.
• When the load leaves the ground, stop winding up the load once and check whether the load is
stable.
• Before hoisting a slung load, always check whether the sling wire rope "retainer device" of the hook
block is hung for sure. If the "retainer device" is not hung, the wire rope may leave the hook block and
cause the load to fall and results in a serious accident.
• Larger wire rope angle when hoisting the load increases force that applies to the wire rope even when
the load weight is unchanged, thus may cause the wire rope to snip. Pay enough consideration well
when slinging to prevent excessive for from applying to the wire rope.
• Do not hoist more than loads at once.
Such attempt may cause the hoist bracket to hit and damager the other hoisted load, the loads to move
and loose balance and cause trip, or other cause of serious accidents.
Do not hoist more than one load even if the total is within the rated total load.
• Hoisting of lengthy load causes the load to lose balance and is dangerous.
In case such load, hoist vertically by using a cramp, or achieve balance of the hoisted load by applying
a rope to both ends of the load.
CAUTIONS WHEN HANDLING WIRE ROPE
• The wire rope fatigues as the time passes, so inspect every time
before work, and replace immediately if at or beyond the
replacement standard.
At the same time, inspect the sheave at the tip of the boom and the
sheave of the hook block. Damaged sheaves accelerate the
damage of the wire ropes.
• Use the wire ropes specified by us.
• Always put on leather gloves when handling the wire rope.
• Handing worn and damaged wire may cause injure by wire splinter.
• Do not use any wire rope of which any of the followings apply.
• 10% or more of the wires (except the filler wires) in one twist of the
wire rope are snipped.
• The wire rope diameter abrasion is beyond 7% of the nominal
diameter.
• Is kinked.
• Is excessively deformed or corroded.
• Affected by heat or sparks.
To Next Page
Loading...
