How to maintain the hydraulic jack? The hydraulic jack usually needs to use anti-wear hydraulic oil when working, and the hydraulic oil filled into the oil tank must be filtered. Usually, it is filtered once a month when it is used. The oil tank should be washed regularly. The oil level in the oil tank should generally be maintained at 85%. If it is insufficient, it should be replenished in time. The replenished oil should be the same as the oil number in the original pump. The oil temperature in the oil tank should be 10-40 ℃ generally, and it is not allowed to work under zero temperature. The oil pipe shall be prevented from bending under working pressure. The oil tank connecting the oil pump and the hydraulic jack shall be kept clean. When it is not in use, it shall be blocked with screws to prevent sediment from entering. The exposed nozzles of the ultra-high pressure oil pump and hydraulic jack shall be sealed with nuts to prevent dust and sundries from entering the machine. After daily use, the oil pump should be wiped clean to eliminate the oil dirt on the oil filtering copper wire cloth.
Hydraulic jack is divided into general hydraulic jack and special hydraulic jack.
Maintenance of hydraulic jack:
When using the hydraulic jack, the inquiry shall be flat and firm. Use oil-free board to enlarge the pressure bearing surface to ensure safe operation. Do not use iron board instead of board operation to prevent sliding.
When lifting, it is required to be stable. After lifting the heavy object slightly, it is required to check whether there is any special condition. Only when it is normal, it can continue to lift. It is not allowed to lengthen the handle arbitrarily or operate it violently.
No overload, no superelevation. When the red line appears on the sleeve, it indicates that the rated height has been reached, and the jacking shall be stopped at this time.
When several hydraulic jacks are working at the same time, special personnel shall be assigned to instruct to make the lifting or falling synchronous. The bottom wood block between the two adjacent hydraulic jacks shall maintain the clearance to prevent sliding.
When using the hydraulic jack, always pay attention to the sealing part and the pipe joint part, and be sure to operate under the reliable condition.
Hydraulic jack shall not be used in places with acid, alkali or corrosive gas.
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