... operate, this machine need used together with air compressorAir Jack Specification1,Lift Weight:2500kgs2,Gasbag Diameter:250mm 3,Airbag Burst ... air bag,wheels.Please Attention, warranty parts following: Air Jack AttentionThe wheels and Rod can not load weight, Please dont ... becuase of above two reason.Air Jack wheels Air Jack Valves Air Jack Inside Air Jack Vaccum Valves Function--Vaccum Airbag to ...