However if all four castor legs are wound out by 300mm and the castor wheels are locked when in use, I cannot see how this could make the tower less stable to work on. I appreciate these are to be used to level the tower on stairs etc. My Argument is that if the castor leg is wound out to its maximum of 300mm, there is still a further 400mm of the castor leg within the tube. He also says that the contractor should have the correct equipment to work at that height, which I feel is right as our other contractors towers did not need to be wound out at all. My managers argument is that these should be no longer than 100mm, as it makes the tower unstable to work on. If the operatives wound down the towers, they would not be able to reach the services that they were working on. the remainder of the castor leg which is not threaded is an additional 400mm. ![]() ![]() This came up during a site inspection where we witnessed two of our subcontracting trades were using towers and both had the wheels threaded out at there maximum of 300mm. He is saying that the wheels should not be threaded more than 100mm out of the bottom and that they are meant to be used to level the tower when working on non level ground. ![]() I have recently had a discussion with my EHS manager over the correct maximum length that castor wheels can safely be threaded out the bottom of a mobile tower.
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