Be very meticulous in the maintenance work, check whether the motor parts are smooth, free from burn marks, rust and oil stains, etc.
Particular attention should be paid to the insulation of the motor to ensure that the insulation is properly bound externally, is well sealed, and can be bound with resin-impregnated lay-glass filaments.
The
motor accessories and bearings, as well as the coordination between the various rings, should be firm, and the copper ring and sleeve copper should be knocked in places where there is no abnormal noise.
The detection of motor accessories often includes the following points:
1. The insulation sleeve of the motor accessories has no cracks and looseness, and the lead wires are firmly connected.
2. At 75°C, the insulation resistance should not be less than 0.5 megohm.
3. Appearance inspection: Check whether the appearance of the
motor accessories is complete and whether there is any obvious damage or deformation. This can include checking that parts such as housings, end covers, bearing housings, etc. are sound and free of cracks or scratches.
4. Functional test: Finally, a functional test is required, that is, to install the motor accessories into the motor, and conduct an actual operation test to check whether it operates normally and meets the performance requirements.
The above is the inspection content of general motor accessories, and the specific inspection items and methods may vary due to different types of motors and accessories. In actual testing, other specific testing items can also be carried out as required.
