I have found with any Fein multi tool previous to the latest models have the potential to run very warm and often hot.
I have mentioned this before on this site. The main cause is simply design, these multi tools in their class, are the most powerful out there, both in mains powered and cordless. There are certainly no issues with the power or actual working performance, in that department they are superb. The problem is, there is no anti vibe to soak up the vibration, and the air venting in my opinion is also a concern.
I have had serious overheating issues with two previous model 18 volt Supercuts. At first the guy I spoke with at Fein, who carries out warranty repairs, was basically saying it was bad luck or an isolated case. After the problems repeated and I spoke to the technical manager, I was this time around told the truth, and that it was a big problem with these tools.
I suggested they should have shock absorbers between the motor and casing, or between the body and battery like many other power tools have, and sufficient air venting.
The chap told me a new model (the current version) was planned, and this would remove the issues.
My machines were only ever used on speed #1 sometimes for lengthy periods but, within Feins guidelines and recommendations. They got hot enough to weld the batteries to the casing, ruining both the batteries and the casings.
Even out of warranty I have changed the casings twice at my own cost. I wasn’t happy at all and said I’d never buy Fein again. Then one of the chaps that works for me bought the latest 18 volt Supercut, and after seeing it perform for a few years without issue, I changed my mind, and bought one. They still have the added PTFE pads added, which was a concern when I saw it, as that was part of a cheap fix on my old machines but, in operation, the heat and vibration is not that of previous models.
They are superb, and without doubt the best multi tool out there, rivalled only by the Vecturo, which is the same machine in different clothes.
Since having my own overheating experiences with these tools, I have spoken to other users, some have suffered the same, and the only conclusion I could come to, was no matter what the machine was being used for, even on the lowest speed, it seemed to be prolonged use that causes the over heating. By prolonged, I mean more than a minute or two, which is one of the reasons I bought mine in the first place.
The blurb said “Mains power from a cordless tool” and “Great battery life for prolonged user application”
I was very disappointed with my earlier Fein experiences, especially considering the money I’d shelled out, even a discount offer on the new models would have been a gesture but, all I got was a new casing and battery, and some PTFE pads and tape added to cutdown on friction, which was repeated 5 months later when they failed again?
Anyway, onwards and upwards, the new ones are very nice machines and my only niggle is the blade patent is again tied up, so blades are costly.
Great machines again now though. [thumbs up]
