How to extend the service life of hydraulic power unit while operation
The hydraulic power unit operations violently should be avoided, this would certainly have an impact load, so that frequent mechanical failure, greatly reducing the service life. The impact load operations, on the one hand so that the mechanical structure of early wear and tear, broken, on the one hand to make an impact on the hydraulic power unit pressure, impact pressure and cause damage to hydraulic components, seals and high pressure pipe fittings and hose together at the premature failure of the oil or burst pipes, rising oil relief valve frequent movement, there is a new unit UH171 shovel for example, operating in every 4 to 6 days the shovel will leak or burst pipe, tubing is a pure random imported goods, by detecting no quality problems. Through observations, findings shovel open and close limit when the strong impact blocks, door frames due.
To effectively avoid shock loading: to strictly enforce the rules; hydraulic valves open and close can not be too much too fast; avoid working device components have strong movement to limit the impact position; no impact function of the hydraulic equipment can not work devices (such as excavator bucket) the impact of operating heavy object in order to achieve the purpose of crushing.
There is also a note of caution: operator to maintain stability to control the hydraulic power unit because each device has a certain difference of free space, connecting the different parts of the wear and therefore the gap is also different, the engine and hydraulic power unit are not the same size of output, these factors give the device personality.
Only the use of the equipment operator to seriously explore, to modify their equipment to accommodate the manipulation of individual action, after a long operation, the device can develop a personality consistent with good practice habits. Adhere to the general machinery industry fixed man-machine system is also a factor.