When the waxing phenomenon is not caused by the oil change in time in winter, the cracked kerosene can be added to dissolve the precipitated wax to reduce the condensation point of diesel oil. High condensation point diesel fuel has a certain impact on the vehicle when used in a low temperature environment. Steyr 91 series car fuel line uses nylon-11 plastic material, can not be fired.
China has a vast territory and a large temperature difference between the north and the south. When transporting long distances between the north and the south in winter, in addition to selecting diesel for the lowest temperature in the region, the temperature of the areas to be visited must also be taken into account in order to replace the appropriate grades in advance in a suitable area. Diesel. In addition, when it is necessary to supplement oil on the way, it is best to go to the state-run gas station for fuel to obtain light diesel oil that meets national standards. When refueling, it can also be observed from the appearance, such as the wrong color or excessive viscosity of diesel oil, with little or no added, so as not to damage the engine.
The engine oil WD615 series engine has a high compression ratio, a high working temperature, and a large explosion pressure, so the requirement for the lubricant is also high. The WD615 series engines require APICD grade 15W/40 oil (supercharged) and CC grade 15W/30 oil (non-supercharged). In use, different brands of lubricants can only be replaced and cannot be mixed. Usually add lubricants, should try to use the same manufacturer to produce products, so as to avoid the various manufacturers of lubricant composition, mixing caused by deterioration, resulting in poor lubrication.
The engine lubricating oil should be replaced according to the normal maintenance cycle, ie oil change (self-priming type and supercharging type) after the initial driving and maintenance of the first, second, third and fourth levels. If the engine is operating under harsh conditions, the oil change period is specified. The oil change period (km) of the engine under severe conditions, but the oil must be replaced if the following conditions are found during engine operation.
n Water in Lubricants Water in Lubricants can corrode parts inside the engine. An easy way to determine if there is water in the lubricating oil is to take a small amount of lubricating oil and place it on a metal plate to heat it. If evaporation occurs and a slight explosion sounds to prove that it contains moisture, it should be replaced.
n The deterioration of the lubricant oil is judged by the following: The engine oil to be used is dropped on a white absorbent paper (such as toilet paper), observe the changes, if the entire drop of oil appears dark brown And even without particles, it indicates that the lubricant has deteriorated and should be replaced.
n Lubricant Thinning Determine if the lubricant is thinning. Take a drop of the lubricating oil in use and freshly lubricate, drop on the same glass plate, tilt the glass plate, observe the flow rate, if the oil is being used The lubricant flow rate is much faster (slightly faster is normal), indicating that it is thinning and should be replaced.
n The engine has a burning bearing accident, or a certain component has experienced severe wear and there is a large amount of metal shavings in the lubricant. Transmission, drive axle oil Steyr 91 series automobile transmission, drive axle lubricants should use ASE85W/90, the oil change period can refer to. Transmission, transfer, drive axle oil should be replaced at least once a year.
Coolant Steyr 91 series cars are shipped from the factory using a glycol-free water antifreeze coolant. It is added to the closed cooling system of the WD615 series engine, as long as the pipe joints do not leak, the water pump water seal does not have problems, and it can ensure that the engine does not need to add coolant in 12 years. When the engine is being serviced in the winter season, check the performance of the antifreeze. If it does not meet the requirements or has been used continuously for 2 years, it should be replaced. In addition, different brands of antifreeze can not be mixed, so as to avoid chemical changes caused by different formulations, resulting in precipitation or corrosion parts.
Tower Crane Telescoping Hydraulic System
Tower Crane telescoping hydraulic system is the important system used for tower crane Mast Section telescoping. It includes the telescoping cage, telescoping yoke, cylinder, and Hydraulic Pump Station.
The main components of hydraulic system of tower crane are hydraulic cylinder, control element, oil pipe and pipe joint, oil tank and hydraulic oil filter, etc.
The hydraulic pump and the hydraulic motor are the most complex parts of the hydraulic system.
The hydraulic pump inhales the oil and transpotrs it through pipes to the hydraulic cylinder or the hydraulic motor, so that the cylinder or the motor can operate normally.
Hydraulic Pump Station,Telescoping Cage,Telescoping Yoke,Tower Crane Cylinder,Axial Plunger Pump
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