Lift (aerial vehicle) safety switches are designed according to the security needs of the lifting platform, fenced gate limit, hanging cage door stopper, Dingmen limit, limit switch, upper and lower limit switches, heavy anti-broken rope protection switch and some on the site in order to save some of the people in Guizhou to cancel the limit switch and shorted or damaged is not timely repair, equivalent to cancellation of these line of defense, planted accidents Example: To load long cage stuff , Guizhou cage hanging cage fit for an extend outside, artificially limit or cancel the door Dingmen limit, in the above facilities, inadequate or incomplete good security situation, still manned loading this illegal operation is to take joke of human life, in order to avoid the occurrence of accidents, want to use the unit leadership to strengthen management and strict requirements elevator maintenance and operations personnel to periodically check the reliability of various safety switches, to prevent accidents. harsh operating environment conditions, cement, mortar , impossible to eliminate dust and clean, mutual grinding gear and rack teeth are sharpened still in use, it should pay attention to. As we all know, the tooth should as a cantilever, when worn to a certain size, the gear must be replaced ( or rack). Wear to what extent we should stop using it can be used to replace the new 25-50mm normal line micrometer to measure, not evil but strict, when normal length gear worn by 37.1mm to 35.1mm size is less than ( two teeth) must be replaced with new gear. When the rack wear by tooth thickness caliper, chord when 8mm thick tooth wear from less than 10.6mm to 12.56mm, rack must be replaced, yet on the site Many "old-fashioned" gear rack lift still extended service use, for safety reasons, must be replaced with new parts. construction lift safety buffer of construction last line of defense on the elevator, first, it must be set, and the second , candles world, it must have a certain strength, can withstand the impact of the rated load of the lift, and the cushion effect. And now a lot of sites, some Chinese high-altitude car rental network, although set http://www.gkczp.com , but not enough to cushion the effect, there is no buffer to the site is completely lifting platform which is extremely wrong, you want to use the unit for inspection note, do not underestimate this last line of defense. lifts (aerial vehicle) rules : 1, should be carried out after the lift assembly acceptance, and no-load, overload test 2, lift the hand operation and management, before starting to check wire rope, anchor, wind cable rope is good, no-load operation test before use 3 lifts. non-manned, in a safe and reliable means, the discharge personnel to enter the basket work. 4, prohibiting climbing frame body lift frame body and crossing below 5 lifts sensitive and reliable contact to set a signal device, Guilin Solidago, each operation can be done with the driver contact layer 6, the lift cable wind rope shall not be arbitrarily removed. 7, the lift must stop operation after maintenance. 8, the lift frame body and the track deformation must be promptly corrected. 9. Do not overload the lift operation. 10, lift the driver to leave, should lay down hanging blue, cut off the power.