Engine use technology

First, remove the vent pipe. The 95 diesel engine's gear chamber cover is equipped with a plastic tube that leads to the intake manifold. This tube is called the ventilation pipe, and its main function is to use the vacuum created by the engine's intake to draw gases from the crankcase into the cylinder for combustion. It also helps balance the air pressure inside the crankcase with that of the intake manifold, preventing oil leakage. However, after prolonged use, this plastic pipe can deteriorate and become damaged. Some operators mistakenly use wooden wedges to block the vent hole, which is not advisable. If unfiltered air enters the cylinder through the blocked hole, it can accelerate internal wear. Additionally, exhaust gases from the crankcase won't be properly vented, leading to increased oil pressure and reduced lubrication efficiency. Second, using a silk cloth on the air filter is another common mistake. To improve the filtration effect, some people place a layer of silk cloth over the air filter cover. While this might seem beneficial, it actually reduces engine power and causes black smoke. The reason is that the silk hinders the smooth flow of air into the cylinders, causing incomplete combustion. This method is not recommended as it negatively affects performance and engine health. Third, using an adjustable wrench to tighten cylinder head nuts is a dangerous practice. Each cylinder head nut has a specific torque requirement, and the tightening force must be evenly distributed. Therefore, special sleeves and torque wrenches should be used during installation. However, some operators substitute an adjustable wrench due to lack of proper tools. This approach has several disadvantages: the adjustable wrench is prone to over-tightening, potentially stripping the nut. Also, because cylinder head bolts have a large twist angle, the wrench cannot provide accurate torque control, leading to uneven tightening and possible warping of the cylinder head. Fourth, during engine overhaul, some operators clean parts and the crankshaft with cotton yarn and diesel fuel, thinking it will reduce wear. After cleaning, everything looks spotless, but shortly after starting the engine, it burns oil. This happens because small pieces of cotton fiber remain in the oil pan and clog the oil filter, blocking the oil passage. These fibers can also stick to engine components, making thorough cleaning essential—brushing is necessary rather than using cotton yarn. Fifth, modifying the belt pulley size can cause serious issues. The Worker-Peasant-12 handwheel is equipped with a flywheel pulley designed to transmit power at a specific speed to the gearbox. Changing the pulley size alters the mechanical advantage, disrupting the balance of the system and increasing the risk of mechanical failure or accidents. It's important to maintain the original design to ensure safe and efficient operation.

Medical Device Component Machining

Medical Device Component Machining,Suturing Device Linkage,Suturing Instrument Screw,Ultrasonic Scalpel Handle

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