When using the electric hydraulic jack for the first time, please open the motor rain cover to see if the motor is inching forward several times, idling for a few minutes, and exhausting with the air in the oil circuit.

　　 The liquid level of the fuel tank is kept above the center line of the oil body to prevent the oil pump from sucking in air. Refueling application 120 mesh sieve filter oil impurities. Use frequently, clean the oil filter and replace with new oil every two months.

Normal temperature

　　 The temperature of normal working oil is 20-70℃. Cooling measures should be taken when the oil temperature is high, or stop the pump to fully cool the oil; it is not allowed to directly work the oil temperature is too low, need to take heating measures, by external heating or low pressure operation to increase the oil temperature.

　　 Before starting, open the unloading valve to prevent the motor from overloading. When the multi-way valve is out of the system, it should be pointed out that the unloading valve is opened, and the unloading valve is closed until the pump runs normally, and then reverse the switch of the oil flow direction of the return rod.

　　 Working pressure shall not increase arbitrarily. The operating force of the valve is generally not more than 100N, and the operation should be accurate. Due to the changing hose, the connection direction is limited, so the valve should be familiar with the reversing position used.

Improper operation

　　 Electro-hydraulic jacks are used for a long period of time. Due to the aging of the entire damaged gel, the compression strength of the hose will be low. Pay attention to regular inspections and frequent inspections every six months. Check the pressure test pump, it must be replaced when the withstand voltage is lower than 1.25 times the rated pressure for leakage, bulge or burst. The use of high-pressure hoses, discounts and sharp bends should be avoided, and operators should be careful not to get too close from the hose to avoid blasting. In fixed places, steel pipes can be used instead of used.

　　The screw jack manufacturer suggest that the electric hydraulic jack should be overhauled once a year. All parts are cleaned with kerosene. Pay attention to the surface protection of the parts. Do not arbitrarily bump the assembly. The moving parts should be flexible and non-local interference.

　　Sometimes due to improper operation, it will bring safety hazards and cause unexpected consequences. In order to avoid this situation, the screw jack manufacturer// lists the following safety measures related to electric hydraulic jacks for customers’ reference. Below, we will introduce electric power from the following aspects Safety measures for hydraulic jacks.

The points

1. The pressure of the hydraulic jack can be measured by the pressure gauge equipped with the hydraulic system.

　　2. The pressure on the oil pump has been adjusted before leaving the factory, and the customer is not allowed to increase or decrease the pressure without our permission.

　　3. Do not remove any accessories or equipment of the hydraulic system of the machine under any circumstances or under any system pressure. If you want to disassemble a component, it must be operated by a worker who has a certain knowledge of the hydraulic system.