The correct refueling method for manual hydraulic vehicles

The correct refueling method of manual hydraulic vehicles There are hundreds of hydraulic cylinders in manual hydraulic vehicles. There is a threaded bulkhead near the upper end of the hydraulic cylinder. Unscrew the bulkhead and it is the fueling hole, and the oil is added from now on. Hydraulic oil plays the role of transmitting pressure, lubricating, cooling, and sealing in the hydraulic system. Inappropriate selection of hydraulic oil is the main reason for the early failure and durability of the hydraulic system. The hydraulic oil should be selected according to the brand specified in the random 'Instruction Manual'. When a substitute oil is required under special circumstances, the performance should be the same as that of the original brand. Different brands of hydraulic oil cannot be mixed to prevent chemical reactions and performance changes of the hydraulic oil. Dark brown, milky white, and odorous hydraulic oil is deteriorating oil and cannot be used. The hydraulic oil must be filtered and refilled, and the refueling tools must be clean and reliable. The filter at the fuel tank filler opening cannot be removed in order to increase the fueling speed. Fueling personnel should use clean gloves and work clothes to prevent solid impurities and fiber impurities from falling into the oil.