I hope someone please tell me how to perform a load test for different lifting equipments like forklift trucks, mobile floor crane, trolley jack, etc...
Contact the insurance company that provides lifting equipment indemnity insurance. Tests will need to be witnessed and carried out to the satisfaction of their engineer/surveyor, who will issue an inspection report as part of the insurance contract.
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If the equipment is certifiable lifting equipment, then the indemnity insurance company's engineer/surveyor can advise. In most cases, the test involves a controlled overload of the equipment that is witnessed and certified by that individual, after which the equipment can only be used to its labelled and certified safe working load.
Without indemnity insurance on certifiable lifting equipment, the operation must meet its own liabilities in the event of a catastrophic failure and additional penalties imposed at Civil Law can be high. In some jurisdictions, not having indemnity insurance for certifiable lifting equipment is also a criminal offence as well as foolhardy.
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"Did you get my e-mail?" - "The biggest problem in communication is the illusion that it has taken place" - George Bernard Shaw, 1856
Sorry for my ignorance, but certifiable lifting equipments are overhead and jib cranes, forklift trucks, and other motorized lifting tools?
But for turret and engine stands, pallet trucks, jacks, etc.. I don't think these have equipment have not been certified, nor insured in an unlikely event, well at least for the past 20 years but are still being used until now.
What do you think is a good procedure in load testing these uncertifiable equipment?
That might be a good answer in UK, but in the US the insurance company stays out of it. It's up to P.E.'s to certify the equipment, and if that is done correctly, there is no liability to the company.
laby
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Be careful of what you wish for .....
There are many standards, one for each type of crane. Look at ANSI
B30.XX. The short answer is that a load test should be annually
performed with calibrated weights to no more than 125% of rated
capacity, for a crane under ANSI B30.17. There should be no permanent
deformation. Times, load sequence, deflection measurements all have
their own parameters. If you are asking these questions, it may be best
to hire an outside indepenedent contractor. Be prepared to pay.
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Load Testing
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