Easy oil shortage will cause the oil temperature increases, the air is easy integration into the oil and hydraulic oil to affect the normal operation of the system, fuel oil, or less than is usually due to loss of repair, this routine should be aware that there is no leak check site, early replacement of worn seals, tighten loose joints, repaired fuel tank to check in time supplies.

    2. Hydraulic oil temperature

    Working hydraulic system temperature should be between between 45 ¡æ -50 ¡æ, due to a hydraulic system is based on oil viscosity and the pressure of the selected design, but the viscosity will change with the level of oil, thereby affecting the system work components, such as cylinders, hydraulic valves, so that the control accuracy and response sensitivity decreased, the situation is even worse precision injection machine. Temperature will also accelerate the aging of the seal so that it hardened, break; temperature is too low then the processing energy consumption, the operating speed decreases. Therefore, pay close attention to the work of the hydraulic oil temperature is very necessary. Causes of high oil temperature varied, but many attributed to oil cooling system failure or failure and so on.

    3. Hydraulic oil quality

    One of the important properties of hydraulic oil is its chemical stability, that is, oxidation stability. Oxidation is to determine the service life of hydraulic oil the most important factor, oxidation of wood tar, sludge and insoluble materials such as carbon residue can contaminate the hydraulic system, and increase the wear of hydraulic components, reduce a variety of gaps, plugging holes, the final result hydraulic system failure. The oxidation rate depends on the hydraulic oil itself and the working conditions and other factors, among which temperature is the main factor, so use the appropriate hydraulic oil, hydraulic oil and regularly check the degree of oxidation (the color of the oil transfer from deep to determine ), more than a certain number of working hours after the oil change is absolutely necessary to take the initiative.

    4. Filter cleaning

    Oil filter plays the role of clean hydraulic oil, the oil filter should be cleaned once every three months to maintain the smooth flow of the oil suction tube Ga, also check the oil filter network for damage.

    5. Cooler cleaning

    Cooler should be cleaned once a year, or according to their ability to work has reduced the cleaning, cooler internal blockage or fouling will affect both the cooling efficiency, cooling water should choose soft (no minerals) is better.

    (B), electrical parts

    1. Wire Connector check

    Joints will not tighten the joint position of the wires have heat or sparks to damage, poor joint will also affect the signal transmission; Contactor joint movement due to vibration and electromagnetic release more easily, so need to regularly check cable connector position and tightened.

    2. Motor

    General Motors are air cooled, and dust accumulation can cause heat problems, so regular cleaning each year, usually in the circuit is equipped with a motor overload cut off the device, the protective device current limit is adjustable, electrical power should be based on appropriate choices, once the overload protection starts, should be sure to check whether the less phase, bad contacts, or by high oil temperature recovery after the position switch.

    3. Heating tube and the thermocouple

    Heating tube should be fastened on the check in order to ensure effective heat transfer, heat production in the normal burning barrel is imperceptible, this should pay attention to the temperature controller's work, judging from heat tube is normal. Another common damage to the heating tube is that cable connection, due to bad joints, contact resistance increases, so the connection to local overheating caused interface oxidation damage.