Brief repair specification

This is a brief outline specification for a typical motor repair.

Each motor is run and a vibration conformance check is carried out. The motor is stripped and a root cause failure analysis is performed. This includes a strip-down and analysis of the bearings. The motor windings are tested using Baker surge test equipment. The bearing housings and journals are ‘8 point’ measured using precision digital micrometers capable of measuring to 3 decimal places to check for correct SKF fit tolerances. The rotor is balanced to an enhanced G1.0 balance specification. (Better than a new motor) All stators are stripped using a controlled pyrolysis (burn off) oven set to 370 °C to ensure the motor efficiency is not affected. Lexseco Core loss testing is performed before and after stripping to prove motor efficiency is not affected. Stator rewinds are carried out to full class ‘H’ specification (better than a new motor) Genuine SKF bearings are fitted to SKF procedures using a degaussing and temperature controlled bearing heater. The motor feet are checked for flatness. The motor is run tested and vibration conformance is recorded and analysed against strict SKF specifications. A compressive service report is compiled and shipped with the motor All rewound motors are covered by a 2 year guarantee (Better than a new motor)