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(1) Check the plunger there is no scar and corrosion phenomenon, when necessary, should be replaced new.nt is a typical hydraulic machinery, driven by a prime mover, the input of mechanical energy is converted into fluid pressure energy, and then entered as pressure, flow into the system, it is the power source of the hydraulic system, because it can transport liquid under high pressure, so the industrial production and daily life in various industries have been widely used.
When replacing the bearing, it should pay attention to is the original English words bearing the mother and model, piston bearing most receiving large load bearing capacity, it is best to purchase the original factory, the original specifications of the product, if the exchange another brand, you should seek advice on bearing history lookup swap staff, in order to allow precision grade and load bearing capacity can be maintained.
????Piston length of life, and the usual maintenance, number and quality, such as hydraulic oil clean-up of oil-related. Stop the oil particles to cause piston friction pairs wear, but also extend the life of the piston favorable way.
Replacement parts in the repair should as far as possible with the original production of parts that sometimes imitation parts than other more expensive, but the quality and stability is better, if the purchase price of cheap imitation parts, feeling short term cost savings, but the resulting potential problems, but also on the use of piston cause more damage.
????Oil in the form of a straight axis swashplate piston pump based
????Straight axis swashplate piston pump into pressure from the sucking oil type and type two. Most oil pressure hydraulic pump with a pressure tank there, but also comes with its own pump to pump up the oil cylinder oil inlet supply pressure of the oil. Since self-absorbing capacity type hydraulic pump super suction, no outside help to supply.
????After the required pressure of the hydraulic oil tank, after each time you start the machine, you have to wait to use the pressure of hydraulic stains box before they can start operating machinery. Once the hydraulic reservoir pressure is insufficient, served as the machine will pump and slip inside the whip phenomenon caused by the pull-off, then the cause is not normal wear and tear the body board and return the pump platen. After using the charge pump supply piston pump 3000h, operators need to check piston 1-2 times a day to check the pump operation is not a normal sound. If the cylinder speed drops or stuffy car situation, you should check the disintegration of the charge pump, check the impeller edge if there are scratches phenomenon, the internal gear pump gap is too big.
For self-suction-type piston pump, the hydraulic oil tank must not fall below the lower limit of the oil standard, to maintain a sufficient amount of hydraulic oil. Cleanliness of hydraulic oil higher, longer pump life.
View high-pressure pump job before the job is as follows:
Before 1 primary electric pump equipment using first check the voltage status, and plugs, sockets to see is not connected;
2, one end of the high-pressure pipeline, links on the electric pump device connector, the other end connected to the needs of the things;
3, pay attention to both ends of the connector before use is not locked into place, it is necessary to move to the top of what the joint force, without relaxing the conditions screwed jacket nut. If not locked in place there will be the appearance of oil can not pass, and then will attack without the operation of the machine status.
Before use it is necessary to view the ministries is not normal. Use should be in strict compliance with the rules of the main parameters, avoid ultra-overload, or when lifting height or lifting tonnage in excess of the rules, electro-hydraulic jack unit will attack a serious oil spill. Please refer to the electric pump electric pump to use instructions. Weight center of gravity to choose moderate, reasonable selection of electro-hydraulic jack focal point, to pad the bottom level, taking into account conditions on the ground soft and hard, is not to the timber liner tough, place is not stable to avoid load subsidence or skew.
Piston pump is the pump in one, but the whole pump industry is a typical investment-driven industries, the market demand is subjected to national macroeconomic policies, which is subject to macroeconomic policy Teyou water, construction, energy and other sectors of greater impact. Hydraulic piston pump is a piston pump, the hydraulic industry's annual output value has not reached 10 billion yuan business, even more than 500 million yuan of annual output value of only a handful of companies, with total annual sales of the entire industry not as a of total sales. When supporting industries do not have the ability to compete with foreign companies, import goods on the domestic market will be strong artificial means of control and nothing to take into account. Most of the profits of construction machinery spare parts have been removed to the fact that not only allow the host manufacturer painful and helpless. Based on this situation, OEMs as well as funds from other industries are constantly entering the hydraulic industry. Just over one billion yuan investment into the hydraulic industry. But this trend is no doubt to increase the intensity of competition within the industry, changing the original industrial structure and order. Piston