Good hydraulic oil cooling system for large hydraulic excavator hydraulic oil cooling system (or rather should the hydraulic oil temperature control systems) to improve, although the specific ways the manufacturers use different, but the basic idea is the same, both the temperature of the hydraulic oil in continuous operation in the balance in the ideal range, but also make the hydraulic system in the cold state can be quickly put to work when the temperature (up to normal operating temperature range of oil). In the case of a qualified hydraulic oil under the premise, when there is overheating hydraulic oil, hydraulic oil cooling temperature control system checks the following steps: ①, hydraulic oil cooler if there is dirt clogging excavator price list, resulting in decreased cooling efficiency , radiator cleaning, if necessary. ②, in extreme conditions, the fan speed detection system operating pressure excavator actual prices to determine the hydraulic circuit is faulty, if oil temperature sensor or control circuit is normal. In this case the fan speed and system pressure should be a maximum value; otherwise, the response system parameters can be adjusted accordingly or replace damaged components. Currently large hydraulic excavator working pump control, there are two main methods: limit load adjustment with pressure shut-off function (ie CUT-OFF function) (GLR) and load sensing regulator (LS) mode. The role of CUT-OFF function, when system pressure reaches the setting value, the swash plate angle variable pump is reduced, the pump can only be maintained at the pressure required to maintain the "residual" flow state to avoid overflow overflow valve overheating. To achieve this purpose, the system parameters to match the technical requirements so that the setting value is lower than the CUT-OFF valve set-value of the primary circuit pressure valve; otherwise, the primary pressure relief valve open will result in overheating. Also, check the secondary valve is working properly, this work must be carried out strictly in accordance with the technical requirements, respond to system parameters adjusted if necessary restorative. Excavator maintenance taboo: the indiscriminate use of butter and butter graffiti pad cylinder. Butter is commonly used in engineering machinery repair grease, can play the role of lubrication and sealing. Therefore, some mechanic during the installation of the cylinder pad, the pad will be in the cylinder coated with a layer of butter, that this would increase the tightness of the diesel engine. As everyone knows, but doing so affects the performance of the diesel engine. Cylinder diesel pad between the block and head of the most important seal sized excavator price, it is not only high temperature and high pressure gas sealed cylinder generated energy, but also seals the cylinder head and the cylinder of the cooling water and lubricating oil, so when the removable cylinder pad, should pay special attention to its sealing quality. Cylinder pad butter during the installation, when the cylinder head bolt tightening, some butter will be squeezed into the cylinder waterways and oil passages in the cylinder head gasket to remain in butter between the cylinder at work, due to high temperature, some will flow people cylinder combustion and partly remains in the cylinder block and cylinder head surface binding domestic excavator price list, so that the cylinder head gasket, cylinder head and the body to produce a gap between the plane, the impact of high temperature and high pressure gas cylinder head gasket is easy from here, destroying cylinder head gasket, causing leaks. In addition, a long time in the butter will produce coke at high temperatures, resulting in premature aging deterioration cylinder head gasket. So do not buttering installation cylinder head gasket.泰安嘉 and Heavy Machinery Co. Kerry and domestic excavator price _ _ Shandong Heavy excavator price offered by 泰安嘉 and Heavy Machinery Co., Ltd ..泰安嘉 and Heavy Machinery Co., Ltd. (www.tajhzg.com/) in mining machinery in the field devoted boundless enthusiasm and passion, Kerry and Heavy Industries has been customer-centric, the concept of creating value for customers, quality, service to win market , and sincerely hope to cooperate with the community to create success, to create brilliant. Related businesses welcome inquiries, contact: punishment manager.