1: Come / replace hydraulic oil. 2: 630t jack jack into an upright position, pump core, piston bottoming out. 3: Remove the rubber plug on the oil coat thin jack, consider cleaning after injection by the hydraulic fluid to the piston port so far. 4: use N15 machine oil at zero on 5-45 degrees Celsius temperature range (GB443-84), such as 5-29 degrees below zero at the temperature range is replaced with synthetic spindle oil (GB442-64). 5: Periodic inspection, lubrication manual transmission link connected at the jack, when is not in use, the piston rod adjustment screw and pump core should be pressed to keep clean, rust. 6: Try to avoid placing it under wet conditions or acid and corrosive gas. First, the specification: one for two, a drag four, a drag six, a drag eight, delayed ten, twelve a drag, a drag XIV, a drag sixteen, etc. Second, jack Tonnage: 10t, 20t, 30t, 50t, 100t, 150t, 200t, 320t, 500t ,. Third, pumping stations: 1.1Kw, 1.5Kw, 2.2Kw, 4Kw, 5.5Kw hydraulic jacks | Chengdu jack | hydraulic force provided by the Texas Lu Lu hydraulic equipment factory. Texas Lu force hydraulic machinery plant (www.luliyeya.com) strong, credible, in Dezhou hydraulic machinery and components industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Lu Hydraulic and you hand into the brilliant, for a better future!