2014年12月28日星期日

The technical requirements should be run

The new machines generally go through the factory inspection and running to meet the technical requirements of the product. After installed must further run-in period for the general provisions 2000-3000km or 50-100h, mainly to improve the quality of fit Friction surfaces.
   Wear parts according to the characteristic curve known, the running-in period of the machine parts wear out quickly, this is due to the new process of the part surface is rough, uneven wear generating meshingly, the peeling off of the metal or oxide formed severe abrasive wear . Therefore, the new machine must be running - according to certain procedures and technical requirements process.
   The new machine according to the technical requirements driving the speed limit, load limit and change the off road rough terrain forklift oil, and pay attention to maintaining good thermal (cooling water temperature 80-90 ℃) driving and normal oil pressure, non-sudden boom throttle, which can greatly reduce with deputy the amount of wear of the friction surface, to improve the life of the part. Avoid and reduce premature failure.
   The results from the wear of the cylinder, piston rings and other parts of the watch, two-thirds are caused when you start, from the start to the amount of lubricating oil into the friction surface wear this time 2/3 of the total amount of wear.
   Low temperature operation, the lubricating oil is very thick, difficult to enter the friction surface; due to poor lubrication, lubricating oil drain between the friction surfaces and the formation of dry friction, wear particularly severe; from high sulfur fuel 2 Ton Diesel Forklift Truck oil, gas and acid anhydride more, at the cooling water temperature is low, the cylinder wall will form acids, resulting in a strong etching cylinder wall; low temperature of the piston, and the thermal expansion has not yet occurred, and the gap between the cylinders is also large. In the above case, the lateral movement of the piston also increases, the occurrence of a large piston ring in the groove ran. At this point, if a sudden load increase, will increase the wear of the components.

   






 

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