![]() I was recently working on the planning of a heavy lift that was approaching the lift capacity of the (large Manitowoc) crane. included in the weight? Should they be? Net Versus Gross Are attachments such as railings, brackets, stairways, etc. Perhaps they forgot about the additional weight of dunnage or were adding it in when the lift will happen without the dunnage. Operating weight may include the weight of fluids shipping weight is empty. Maybe they were confusing operating weight with shipping weight. If it is not accurately known, then you as the planner are starting off the design process at a disadvantage. The weight is the single most important piece of information that one needs to know when executing a safe and efficient lift. If the load is an old piece of equipment being replaced or demolished then the client should make all reasonable efforts to find an existing set of prints. If the load is newly manufactured, then the fabricator’s drawing is almost certain to exist. ![]() You want to avoid being trapped in an old game of “telephone” where the information has propagated through a relay of individuals. ![]() When given the lift requirements, it is important that an accurate weight is provided. Unfortunately, this value is too often either poorly known or poorly conveyed. Obviously, knowing the weight of a load that you are planning to lift is of critical importance.
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