I tenei tau, he maha nga rohe o to tatou whenua kua ua, ana inaianei me mahi pai tatou ki te aukati i te waikura mo teporaka hua a-ringa. He maha nga waa ka taea te whakamahi i te poraka hua, engari me karo te whakamahi i teporaka hua a-ringa i te rangi ua ka pai ake te ora o te poraka hua me te pupuri i te whakamahinga o te poraka hua. Mahia nga mahi whakatikatika mo te hika i runga i te ua ua. Tuhinga o muaporaka hua is metal, and most of the metal has the defect of rust. Doing good maintenance work can avoid the danger of rusting on the lever hoist and extend theporaka hua. The service life improves its operational safety. If the project is more urgent and the amount of precipitation is particularly low, people can consider building a canopy for lifting work, but it must be maintained in time after use.
