The Use notes and Caution of hydraulic jack

Hydraulic jacks Caution:
1. When using a hydraulic jack, you should first try to jack up the first part of the weight, carefully check the hydraulic jacks without exception, and then continue lifting heavy objects. If it is found after the compression plate is not flat, not solid or hydraulic jacks tilt
2. Be sure to return the hydraulic jacks relief, after timely deal before operating again.
3. In the lifting process, should be at the bottom of the hydraulic jacks Insurance sleepers bedding planes with increasing weights to prevent hydraulic jacks tilt or cause a sudden drop in the piston and causing the accident, should be gradually withdrawn when the decentralization of heavy sleepers out, the distance between the sleepers and heavy sleepers shall not exceed the thickness of the piece, to prevent accidents!
4. If the weight exceeds the lifting height required hydraulic jacks rated highly, you must first hydraulic jacking weights underlying good sleepers, lowered hydraulic jacks, padded bottom, repeated lifting, until the desired lifting height
5. Hydraulic jacks can not be used as a permanent bolt tensioner tool. For a long time support, should increase support portion beneath the weight, in order to ensure that the hydraulic jack from damage.
6. If lifting weights with only one end of a hydraulic jack, hydraulic jack should be placed on the axis of symmetry of the weight, and hydraulic jacks consistent base length direction and the direction of the weight and easy dumping. If the heavy end of the use of two hydraulic jacks, and the direction of the base should be slightly splayed symmetrically placed on both sides of the axis of symmetry weights.
7. Use two or more hydraulic jacks simultaneously lifting operations shall be unity of command, coherence, while lifting.
8. A hydraulic jack should be stored in a dry, dust-free place, unsuitable for acid-base, workplace corrosive gases, but not on the outside sun and rain!