First, use: RSM series is split hydraulic jack hydraulic jack, smaller, and may have a greater ability to work, particularly in the spatial location of the narrow places, and has a light and flexible, the top force and other functions, this product is widely For electric power, chemical, steel, bridges, machinery and other enterprises, and to play its infinite power. Second, the ultra-thin hydraulic jacks Note: 1, when used as an empty playing phenomenon, can be put on the oil loosen the screw pump that will pump up and head down the vertical space to play a few times, and then tighten the oil drain screw , you can continue to use. 2, when used, must not add partial load or overload to avoid jack damage danger. In a load, should not have to plug removed, to avoid accidents and damage to the parts. 3, The machine is oil as the medium oil and the equipment must do maintenance work, in order to avoid blockage or leakage affect the results. 4, new or old set of hydraulic jacks, cylinders memory because there is more air to start using, the piston rod may be small sudden jump phenomenon can be hydraulic jack load reciprocating motion 2-3 times to exclude air cavity. Long idle jack long as the seal does not work hardening caused by the seal, thus affecting the service life of the hydraulic jack, hydraulic jack so that when not in use, the monthly hydraulic jack load reciprocating motion to 2-3 times . More product information about hydraulic jacks, please login http://www.jstzhl.com/.