Posted By rks I am just checking that I have the right information for the re-erection of crawler cranes. Once a crawler crane has been re-erected on site is a new examination required at either 110% capacity or a independent thorough examination required even though it has a current 12 month examination record in place? Any info would be much appreciated. regards

Posted By Bruce Sutherland LOLER ACOP - para 305 -310 reg 9.2 installation and reconfiguration - after assemebly and before being put into service at a new site or location......needs a thorough examination by a competent person - suggest the competent person could have set out exactly what tests would be required - normally they rarely deviate from the norm - guess two reasons - 1 - the norm has been demonstrtade to work 2 - PI insurance. Cheers Bruce

Posted By Alan Woodage This is an ambiguous area, to what extent had the machine been dismantled, if we are just talking the norm with the jib sections being dismantled or are we talking a larger machine where the tracks have been taken off and hydraulics stripped down to get the thing moved. Think of it this way do you do a thorough examination by a competent person every time you put a fly or deploy a stinger on a mobile crane? No because this is part of the rigging of the crane and within the skills of the operator / erection crew. Equally if you are adding or removing jib sections from a Crawler you are doing the same thing. What about every time you need to re reeve the block for different capacities or speeds? The most vital bit is the end of the rope but again this would be carried out by a driver or erector as a common operating process. In my opinion if you haven't disturbed the mechanical or hydraulic workings of the crane then I would be happy with a rigging certificate from a bonafide company and an in date inspection and thorough examination.

Posted By Martyn Hendrie Historically, in construction, an overload test would only be carried out once every 4 years (unless there was substantial alteration or repair). When moved and rigged on a new site a "thorough examination" would normally take place. (This would not involve an overload test) What may be causing a confusion is the fact that in LOLER whether or not an overload test is appropriate/needed is left to the discretion of the "competent person"