Harrington Hoists and Cranes (N)ER Hoist - ((N)ER1) - Manual (Page 20)

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The operation of an overhead hoist involves more than activating the hoist’s controls. Per the ANSI/ASME B30
standards, the use of an overhead hoist is subject to certain hazards that cannot be mitigated by engineered features,
but only by the exercise of intelligence, care, common sense, and experience in anticipating the effects and results of
activating the hoist’s controls. Use this guidance in conjunction with other warnings, cautions, and notices in this manual
to govern the operation and use of your overhead hoist.
4.2
Shall’s and Shall Not’s for Operation
WARNING
Improper operation of a hoist can create a potentially hazardous
situation which, if not avoided, could result in death or serious injury,
and substantial property damage. To avoid such a potentially
hazardous situation THE OPERATOR SHALL:
•
NOT lift more than rated load for the hoist.
• NOT operate unless load is centered under hoist.
• NOT use damaged hoist or hoist that is not working
properly.
• NOT use hoist with twisted, kinked, damaged, or
worn chain.
• NOT use hoist if the bottom hook is capsized
(double fall hoists - see
Section 3.2 ).
• NOT use the hoist to lift, support, or transport
people.
• NOT lift loads over people.
• NOT apply load unless load chain is properly
seated in the load sheave (and idle sheave for hoist
with two chain falls).
• NOT use the hoist in such a way that could result in
shock or impact loads being applied to the hoist.
• NOT attempt to lengthen the load chain or repair
damaged load chain.
• NOT operate hoist when it is restricted from forming
a straight line from hook to hook in the direction of
loading.
• NOT use load chain as a sling or wrap load chain
around load.
• NOT apply the load to the tip of the hook or to the
hook latch.
• NOT apply load if binding prevents equal loading
on all load-supporting chains.
• NOT operate beyond the limits of the load chain
travel.
• NOT operate hoist with missing/damaged chain
springs, cushion rubbers, stoppers or striker plates.
• NOT leave load supported by the hoist unattended
unless specific precautions have been taken.
• NOT allow the chain, or hook to be used as an
electrical or welding ground.
• NOT allow the chain, or hook to be touched by a
live welding electrode.
• NOT remove or obscure the warnings on the hoist.
• NOT operate a hoist on which the safety placards
or decals are missing or illegible.
• Be familiar with operating controls, procedures, and
warnings.
• Make sure the unit is securely attached to a
suitable support before applying load.
• Make sure load slings or other approved single
attachments are properly sized, rigged, and seated
in the hook saddle.
• Take up slack carefully - make sure load is
balanced and load-holding action is secure before
continuing.
• Make sure all persons stay clear of the supported
load.
• Protect the hoist’s load chain from weld splatter or
other damaging contaminants.
• Report malfunctions or unusual performances
(including unusual noises) of the hoist and remove
the hoist from service until the malfunction or
unusual performance is resolved.
• Make sure hoist limit switches function properly.
• Warn personnel before lifting or moving a load.
• Warn personnel of an approaching load.