First, the operation of technical points

     1, demolition asynchronous motor

    (1) before removing the motor must be removed, the connection of the motor and the external electrical connection, and good phase marker.

    (2) removal procedure

     a pulley or coupling; b, the front bearing outer cover; c, the front cover; d hood; e fan; f rear bearing cover; g rear end cover; removal of the rotor; i The front bearing; j front bearing cover; k, the rear bearing; l rear bearing cover.

    (3) the demolition of the pulley or coupling

    Prior to demolition, the pulley or coupling shaft extension end well positioned marked with the pulley or coupling bit slowly, with a special bit. To pull the pulley or coupling force make sure that the direction of the force along the axis of the items end puller not damage the rotor shaft center hole.

    (4) Remove the end cap, rotor pumping

    Before the demolition of the seams in the chassis and cover (lasts the mouth) and tagged in order to reset. Uniform removal of the bearing cap and the end cap bolt won the bearing cap, and then the two bolts screwed in the two wire holes in the end cap, two bolts evenly forced to turn (the larger end cap will sling the end cap hang up) the end cap to win. (No top screw hole available Tongbang symmetrical beat, remove the end cap, but to avoid too heavy percussion, so as not to damage the cover) for a small motor out of the rotor is * manually, to prevent the hand sliding or uneven force touch wound winding cardboard pad in the end winding.

    (5) bearing disassembly, cleaning

    Remove the bearing puller should be appropriate dedicated. Rally should focus on the bearing inner ring, can not pull the outer ring, the top puller not damage the rotor shaft center hole (which can add some grease). The bearing before the demolition, the bearings should be washed with a cleaning agent, inspect it for damage and need replacement.

     2 assembly asynchronous motor

    (1) net motors use compressed air to blow dust inside, check the integrity of the other part, cleaning oil.

    (2) assembly asynchronous motor steps to reverse the removal. Before assembly to check the stator dirt, rust is clear, only the mouth for damage injury, various components of the assembly should be reset by pressing Mark, and check with the bearing cap is appropriate.

    (3) bearing assembly can be hot the cuff and cold assembly method.

     Second, pay attention

     1, or removed the motor, the motor base gasket in accordance with the in situ placed fixed, so as not to increase the fitter on the workload.

    Demolition, when the rotor is installed, must comply with the requirements of point not to damage the windings before demolition should test the winding insulation and winding path, installed.

     3, demolition, not installed by hand hammer percussion parts, should be the pad copper, aluminum rod or hardwood, symmetric knock.

     4, the end cap is installed before the application of thick copper wire, inserted into the the hook bearing cap, bearing mounting holes to facilitate the assembly outer bearing cap.

     The heat sets mounted bearings, as long as the temperature is over 100 degrees, stop heating, job site 1211 fire extinguishers should be placed.

     Cleaning agents to clean the motor and bearings (gasoline, kerosene) are not allowed with the fly-tips must be poured into the sewage wells.

     7, repair sites need to be cleaned.