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• When performing maintenance and inspection, ensure that the Electric chain hoist power is
shut off, and more than 5 minutes have passed since.
* There is a risk of electric shock and injury from the unexpected operation of the Electric
chain hoist.
• When carrying out maintenance and inspection, ensure to remove any load beforehand.
* There is a risk of injury due to falling loads etc.
• Ensure that the main body of the Electric chain hoist has cooled sufficiently.
* There is a risk of burns.
• While performing maintenance and inspection, ensure to display to that effect ("under
inspection" or "Do not power on" etc.)
* There is a risk of electric shock and injury from the unexpected operation of the Electric
chain hoist.
6-1. Daily inspection
• Ensure to perform routine checks before using.
• In case of an abnormality, stop using immediately, and use only after taking appropriate
remedies referring to the section "General causes of malfunction and measures" in the
"Hitachi Electric chain hoist Owner's Manual".
* It is very dangerous to use in a state of abnormality, which can lead to an accident, so do
not operate.
6-2. Inspection before starting work
• Confirmation of operation without load
( 1 ) Whether or not the push-button operation is smooth and working correctly as displayed.
( 2 ) Whether or not there is any abnormality in the motion of the Electric chain hoist and the stopping distance
when it is stopped.
( 3 ) Whether or not there is any unusual sound (abnormal noise), vibration or smell.
• Confirmation of operation under the rated load.
Whether or not the braking effectiveness is good.
* Please judge this from the amount of slip after braking when stopped after performing a hoisting operation
with the rated load.
* When the amount of slip is large compared to normal, an adjustment of the brake is necessary.
6. Maintenance and inspection
WARNING
DANGER
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