1 oil spill: check shaft seal, the sealing parts, adjust or renewal. 2 Noise: abnormal noise: check whether foreign objects fall into the pump chamber, bearings, pump drive parts for damage. Clear, trim, change new. 3 fuel injection: a large number of oil spouts: check the oil level is too high, such as too high, release; retaining cover components, anti-injection components are intact. 4 Blind valve vibration: a lot of vibration: Check the base is solid, fastened, the foundation is sufficient. Have bite, stuck in the early signs, adjust. 5 pump temperature anomalies bearing fever: a little loose belt, check whether the smooth flow of oil, cooling water enough. Fuel tank heat, exhaust valve overheating: reduce the inlet pressure, increase the amount of cooling water. 6 bite stuck: check whether foreign objects fall into, parts intact, lubrication is adequate, fuel, oil, pumps. 7 electric shutter valve motor current is too large or fuse blown: check the current is too large reason, check the fuse capacity, adjust, change new. Hard seal butterfly valve vacuum is not high: (1). Pump leakage. (2) cartridge hole suction, appear mist: cleaning oil filter, check tubing, pumps. (3) pump oil pollution: open the gas valve running 1-2 hours or longer, or new oil. (4). Insufficient fuel, the oil level is too low: fuel. (5). Oil temperature is too high: Increase the amount of water, reduce the ambient temperature and inhaled gas temperature, eliminate occlusion, poor lubrication. (6). Exhaust valve damage: for the valve. (7). Exhaust valve Spring damaged: renewal. (8) parts of the pump wear and tear, there are different sound, power abnormalities: dismantling inspection of the rotating parts.
Non-tapping screws are machine Screw, the pieceworker to be fastened must be tapped with taps in the screw hole in advance to match the screw threads.
The difference between tooth screws and other screws depends on whether they can be used together with nuts. Tooth screws can be used with nuts. And relative to the screws of other teeth, there are self-tapping screws. The nut of this kind of screw has no bow teeth. As for the standard teeth and fine teeth are only different pitch, it is the nut of the machine screw
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