Before using the methods and key issues 1. Lifting first slotted end of the handle set into the oil return valve stem and valve stem in a clockwise direction back to tighten the oil. 2. push handle into the hole and down pushed the hand, lifting the top of the piston rod that is smooth rise was due to the limited position within this jack means, to a certain height so that the top is no longer rising. 3. To make the descent of the piston, just use the slotted end of the oil return handle counterclockwise slightly loosen the stem, piston rod that is slowly declining. If the load is not too fast oil return valve stem rotation jack quality, or decrease the speed too great a risk. Must estimate the weight of the object 4. Before lifting, remember to use overloading. 5. When using an object must determine the center of gravity, select the jack focal point, place a smooth, but also must consider the hardness of the ground, must be tough when the pad with wooden jack manufacturers produce skew even when dumped to prevent lifting. 6. After heavy top, the weight should be in place under the pad to tough wood (or other material) support, just in case the jack failed and dangerous. 7. If several jacks with lifting speed should keep pace, and each jack load should be balanced, and will cause the dumping of dangerous. 8. The jack at -5 ℃ ~ + 45 ℃ in use, the use of (GB443-91) N15 machine oil; use at -5 ℃ ~ -20 ℃, the use of (GB442-64) synthetic spindle oil. Jack must maintain adequate working filtered clean oil will be less than otherwise rated lifting height. 9. Avoid sharp shock. Applications This jack is a hydraulic press principle. Because it is compact, small size, light weight, portable aspect, and is widely used in the lifting operation liquidity, if used in cars, tractors and other tools are particularly suitable as lorry. The jack is only suitable for upright use, you can not use the side-mounted or backward, operating temperature of -40 ° c ~ 45 ° c jack prohibited place for the acid-base and corrosive gases. Someone asked what is the use of a safety valve? Valve is used to lock the hydraulic prevent overload use, in order to work safely sake !!! Like in a car seat belts, not wearing a seatbelt can also drive, But in the event of an accident the belt on to play an essential role in the specific operation:! lift 1. Turn the jack valve (to the tightest office) with the handle clockwise 2. Place the jack into the right vehicle jacking. below the site, if necessary, adjust screw counterclockwise rotation until it contacts the vehicle jack on the jack handle into the handle 3. sleeve, actuator handle up and down until the vehicle was raised to the desired height decreased (Caution Note: Slow slow decline in vehicle slowly rotated back valve) 1. Remove the jack handle cash, with the handle loosen the oil return valve, (please slowly turn the handle counterclockwise to release the oil return valve) Caution: Do not back valve release more than two turns. 2. After the vehicle completely down, move the jack (if you adjust the screw in the extension of lift state, you need to rotate clockwise until it is completely out of the vehicle). Xinyu lifting (FIG), jack quality, Gansu jack made clear Yuan Xinyu Lifting Limited. Qingyuan Xinyu Crane Limited (xyqz0312.1688.com) is a professional, "chain hoists, lever hoist, electric hoist, multi-functional electric hoist, indoor and outdoor lifting machine" company. Since its inception, we adhere to the "good faith, sound management" approach, the courage to participate in healthy competition in the market, so that the "Shanghai Yan" brand has a good reputation. We adhere to the "service first, customer first" principle, so Xinyu lifting engineering, construction cranes has won numerous customer's trust and establish a good corporate image. Special Note: This information is for reference only pictures and information, please contact us to obtain the most accurate information, thank you!