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2.25 DOS AND DON’TS DURING CRANE OPERATIONS
• Always set the outriggers on the leveled solid ground when performing the crane operations.
• Never perform traveling hoist or the crane operations without setting the outriggers.
The machine will be unstable and overturn, leading to serious accidents.
• See the cautions given in the Safety besides the dos and don’ts in this section.
[1] DON’T OPERATIONS WITH SLEWING FORCE
Drawing in or lifting the load with slewing operation is prohibited.
[2] DON’T OPERATIONS WITH DERRICKING FORCE
Drawing in or lifting the load with boom derricking operation is
prohibited.
[3] DON’T PULL SIDEWARD， DRAW IN， AND HOIST DIAGONALLY
Pulling sideward, drawing in, or hoisting diagonally applies
unreasonable force on the machine. It not only damages the
machine body, but also is dangerous. Never operate in these ways.
The hook must come right above the center of gravity of the load
hoisted.
[4] DON’T OPERATE VIOLENTLY DURING OPERATION
Do not operate the lever suddenly.
Especially, the “slewing”, “boom lowering”, and “hook lowering”
must be operated at low speed.
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