How to detect whether there is a problem of motor bearing, a change from time to tome what to pay attention to?

Motor rotation is sensitive or not, directly affect the size of the electric power consumption. If the motor operates insensitive, consumes a lot of electricity, motor will compare with loud, motor will be hot, range significantly shortened. Among them, the motor bearing clearance is too large is one of the most common motor mechanical problems. A: how do we distinguish, motor bearing can have a problem? Is very simple, we will put the car up, from side to side with the hand motor, if obviously feel around to have a gap, the motor bearing, demand a change. Cycling can hear when the motor with abnormal noise, rotation and no common sensitive. Motor bearing gap is too big, what is the effect of long period of time? Time is long, will cause bearing outside running round likely, once outside running round, even if a change in the motor bearing also doesn't work, it needs a change in motor, so it will gain and loss. And swung gap, the greater the likely will be jammed the brakes, the usual run of direct friction at the rear wheel brake drum cover and motor. Empty up may not be very obvious, but it can hear when cycling is very harsh, and the rear wheels will be severely burned. When we are sure there is something wrong with the motor bearing, we need to do is tear open come down to the motor. In motor bearing, and we have met before a change in motor hall steps are the same, but now is in the bearing. Motor bearing is ordinary, in the change of time, the best two change together. Close to the motor phase line is relatively more difficult to dismantle the bearing point, there are moments, the motor shaft rust than tight. We might need with the aid of some tools. About the motor shaft rust, we need use sand paper to grind the motor shaft, the polished away the rust, then order some clean engine oil. So wait when the chapter three jaw ramallah came out easier. With three jaw ramallah bearing, tubing must straighten. In case the pull of the time to pull the motor shaft deformation. Lamar in such moments, cooperate with the wind gun, this is compare save Labour, speed is fast. On the other side of the bearing is like simple, as simple and change the front wheel bearing. Change after bearing, separate the motor cover and rotor position, remember must still need to apply a layer of sealant, avoid water, in the change of motor bearing, must pay attention to, don't damage the oil seal, if oil seal damage, we need a change. Bearing unit is more simple, filling the new bearing butter, then into the motor cover and rotor, device in place. This is no skills. After we will motor cover closed, if the rotor rotation insensitive, not in place, demand will refit of stator and rotor. Once the motor cover, or demand to the hall to stop check. Prevent the condition of the car can't run after loading. This kind of condition, have a mechanic before met, before the car ride well, after a change in the motor bearing, may be due to vibration, a certain hall is damaged, vehicles may not run. Before we loading with the testing for a few seconds of the repair treasure knows for sure, it's also a detail. After testing, if the motor hole, no problem, we can directly loading.