Wrong maintenance method
1, Air-cooled engine cooling with water. Some users see the air-cooled engine temperature is high, worried about damage to the machine, with the water method to help cool down. In fact, it is a very wrong approach, the sudden cooling with water, the cylinder liner suddenly contracted, easy to pull the cylinder, broken ring, and even the cylinder liner rupture.
2, Do not pay attention to regular maintenance. Some users think that a few days to engage in maintenance on the line, in fact, wear and tear is the process of accumulation, regular maintenance as the main.
3, Do not pay attention to the quality of fuel and lubricants. Poor quality of fuel, not only make the machine power is not enough, and accelerate the oil pump and core set of wear; lubricant is good or bad, directly affect the machine start performance and service life, must not be sloppy.
4, Improper use of sealant on the engine bias cover pad. After the partial cover gasket using sealant, excess rubber easily into the gear box, due to the long working hours and oil pump suction, sealant is easy to block the oil into the oil hole, so that the crankshaft and connecting rod can not get effective lubrication.
5, The fuel tank cover leaking oil sealed with film paper. After sealing the fuel tank, work for a long time to produce negative pressure in the tank, resulting in insufficient oil intake, so that the machine in the work of black smoke, insufficient power.
6, Diesel atomization is bad only to change the nozzle. Diesel atomization is bad in addition to the nozzle problem, mostly high pressure oil pump wear, small pressure, less oil caused by.
7, Messy tighten the screws on the body. Power tiller is mostly equipped with aluminum alloy box engine, aluminum alloy is obviously less hard than ductile iron, so all the screws on the body must be in accordance with the torque force, especially the cylinder head screws, a little care will be "pulled". And try not to tighten the screws when the machine is hot.
8, dismantling the air-cooled engine wind shield and wind shield. Some users do not know the role of the wind shield and wind shield, think it is something to block the mud, you can want or not, arbitrary demolition, resulting in the fan of the wind can not be concentrated, lost the effect of cooling.
