Why multimeters shouldn’t be used to test large electric motors

Why in-field testing an electric motor with a multimeter might not be such a good idea. We had a call-out to a customer over the bank holiday weekend where they were having trouble with an inverter tripping each time it tried to drive a motor. The information we had from the site engineers was that the motor tested ok and …

A lot of work goes into an armature rewind

“I never knew how much work was involved!” That was a comment made by a visitor to our workshops earlier this week when we stopped by this DC electric motor armature being rewound. Many people make the assumption that the rewind is done by machines. Whilst this is usually true when it’s made at the manufacturer’s factory, when it comes …

Is this possibly the cheapest reliability invention ever created?

Is this possibly the cheapest reliability invention ever created? Yes, I’m serious, the humble grease nipple cap. It costs pence but can save you thousands…… Think about it and what it does, it protects contaminants from getting into the lubricant. Next time you walk around your plant, take a look at your equipment. How many grease nipples can you see …

Refurbishing Zalkin capper motors

Refurbishing Zalkin Capper Motors

Refurbishing Zalkin capper motors can save you tens of thousands of pounds £££££££ We repair and refurbish Zalkin capper motors for a dairy customer of ours. They are used to fasten the caps on milk containers and in a recent study on costs we’ve realised that each repair or refurbishment costs around one fifth of the cost of new. We …

Industrial Fan Repair & Refurbishment

Blowing a lot of hot air

One of our customer in the North West has a critical air handling unit application that removes hot process air from an aluminium recycling line. We recently took over the repairs from this site and as part of our reliability program are responsible for monitoring the condition of critical machinery. We knew this unit had a problem with one of …

Siemens s120 servo drive repair

Siemens S120 servo drive repair

A tissue manufacturer called us as he was having problems finding a reliable repair solution for a newer generation of Siemens servo system the Sinamics S120 range. Now this system is one we have a fully operational test rig for the PSU, drives and drivecliq servo motors. We were sent the servo drive which was a 6SL3120-1TE23-0AA1, a 30 amp …