Explain the procedures for overhauling a motor in electrical winding workshop – NABTEB QUESTION

The procedure for overhauling a motor in electrical winding workshop is as follows:

(i) Dismantle the motor carefully.

(ii) Clean away all dust, dirt, oil and grit using a blower, bellow or compressed air hose.

(iii) Check all parts for damage wear and repair or replace as found necessary.

(iv) Measure the insulation resistance and dry out winding if necessary until the correct value is obtained.

(v) Repair or replace any damage winding.

(vi) Reassemble all parts. Ensure that machine leads are on their correct terminals and all parts are well tightened and locked.

(vii) Check insulation resistance.

(viii) Check air gaps.

(ix) Commission and text.