8.5.1 SWL

The rated capacity of the trolley selected should allow for any additional weight other than the load which is to be suspended from it. In most cases, manufacturers of trolleys take into account the weight of a hoist of their own specification in assessing the rated capacity. If a heavier lifting appliance or one of different duty than that normally specified is to be used, this must be taken into account when establishing the SWL. It is important that the type of lifting appliance to be used (i.e. hand or power operated) is considered.

If a trolley intended for hand operated appliances is to be used with a power operated appliance, then a de-rating of at least 15% should be made. No allowance is necessary if a hand operated appliance is used with a trolley intended for power operated appliances. Account should also be taken of the additional weight of the power operated appliance. In assessing the total load to be lifted, the weight of any lifting equipment or accessories, which will be suspended from the lifting appliance, must also be added to the total load.