The importance of a good-quality motor repair

01 November, 2022

There are several ways that a poorquality motor repair can impact a business. Firstly, there could be issues with the energy efficiency of a badly repaired motor which can lead to unnecessary increases in costs. However, if repaired well, a motor should be at least as efficient as when it was new. This was demonstrated by a study carried out by the Association of Electrical and Mechanical Trades (AEMT) and the US-based Electrical Apparatus Service Association (EASA), which used independent testing facilities to confirm higher efficiency IE3 units are unaffected by a repair that uses good practice procedures.

A motor that has not been well repaired can also be prone to failure earlier than expected. Winding faults can lead to premature insulation breakdown, while poorly fitted bearings can fail sooner than expected. If these unexpected faults occur, the cost of unintended downtime could be massive for some businesses

Take the time to understand what the client needs

There are ways to identify a good quality repair, and this can start before the repairer even sets eyes on the motor. The repairer should take the time to understand what the client needs. They should talk to the customer to find out about the motor, where and how it is being used, and what the customer wants from the repair.

When inspecting a repaired motor, generally, if the motor looks like it has been well treated on the outside, it is likely that it will have been well treated on the inside. For example, when the motor is returned, are the mounting faces free of paint? If they have been well masked when the motor was painted, the motor will be much easier to mount accurately. Equally, if the terminal box looks nice and clean and there are new nuts and washers on the terminals, that would be a sign that care has been taken. Other small but notable signs include the fitting of new grease nipple caps. They cost a few pence but can make a big difference. Also, look for mesh wrap or some form of protection on the shaft. While silica gel packs inside the terminal box and anti-corrosion coatings can make a difference, especially if the motor may not go straight into service and is in storage for any time.