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Dos and don’ts of electric motor care

A well-looked-after electric motor should reward you with years of efficient and reliable service, whether it’s used to drive a fan, mixer or other piece of industrial equipment. Here are a few essential rules to remember when it comes to electric motor handling, storage, operation and maintenance.

Do

  • Store motors in a clean, dry area with a humidity of 60% or less and away from sources of vibration.
  • Check shaft alignment every 2,000 operating hours.
  • Ensure minimum loads are maintained at all times to ensure the shaft can rotate.
  • Check whether a motor rewind may be more economical should a breakdown occur, especially in the case of larger or bespoke equipment.
  • Consider coupling your motor with a variable-speed drive in order to reduce strain on components, improve energy efficiency and enable tighter process control.

Don’t

  • Activate a motor that has been stored for an extended period of time before checking the insulation resistance of the windings against earth with a Megger. This is to ensure that moisture damage has not occurred.
  • Excessively lubricate bearings, as this churns the grease and leads to overheating.
  • Oversize motors, as this can cause poor performance and increased electricity consumption.
  • Allow dust to accumulate. Dust contamination can block cooling passages and cause overheating, while abrasive particles may even wear down components.
  • Ignore unusual noises such as grinding or scraping as these indicate that the shaft and/or bearings may be damaged.

Here at Gibbons we supply electric motors for a vast range of industrial applications, as well as providing an essential rewinds and repairs service. To discuss your electric motor requirements, call us on 01621 868138 or email info@gibbonsgroup.co.uk

Electric Motors

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