so if im unable to turn the motor like you are doing that means its stuck/broken?
@4qd
Жыл бұрын
Yes, we've seen a couple of these motors where the magnets have come unglued from the case and have broken up inside and locked the armature solid.
@KarstenBondy
8 ай бұрын
What does it mean if a motor's continuity between the terminals goes up from 0.006 to 0.112 depending on where it is turned? I have a motor that passes every test except this one, and does not work. Is this something that can be fixed by taking it apart and cleaning it or something?
@4qd
8 ай бұрын
I'd suspect that the 0.006 is a short circuit within the windings, these shorts are often buried deep in the coil where the insulation has overheated and burnt. A motor re-wind company could probably sort it [at a price though].
@roberthutchison8416
Ай бұрын
Thanks i have bought a couple china HD 12V motors and they don't work at all? I will use your video for troubleshooting.
@Therealjimjam
Жыл бұрын
Hello! Thank you for the video! I am checking a dec fan from a radiator in a car, I do have about 8-100 ohms reading from one leg of the motor to the casing of the motor, that means it is bad, right?
@4qd
Жыл бұрын
8 ohms is about the upper limit of what we have seen, I would think 100 is showing a fault.
@דותןאלברט-נ6פ
5 ай бұрын
hi there im using a multimeter like you are doing and i get some nods but all of them under 10, would you mind helping me with it?
@tomcook5813
2 жыл бұрын
Is the checking between windings and case called a leakage test? I’ve heard the term but not sure what it is.
@4qd
2 жыл бұрын
Yes that is a leakage test, it can be done with a high voltage test set but for the majority of low voltage motors a multimeter is good enough.
@bearknuckles100
11 ай бұрын
So what are the readings if the motor is not ok?
@rw2266
9 ай бұрын
Higher resistance
@countbaker5595
8 ай бұрын
@@rw2266I'm not getting any reading. bad?
@lengthmuldoon
7 ай бұрын
Any idea what might be the problem with a cordless circular saw that runs but at about 50% of rotational speed. The batteries charge but there just isn't enough umph from the motor to cut even the thinnest bit of wood.
@4qd
7 ай бұрын
Could be a number of things. Most likely would be the battery not giving enough current [try a different one], then it could be a problem with the motor, the controller, or just possibly the bearings of the saw blade.
@lengthmuldoon
7 ай бұрын
@@4qdThanks mate, the batteries are both charging to 18v+ (it's an 18v saw) so I've discounted them. Tbh think I'm going to sell it for parts just too much work for me
@MagicAyrtonforever
Жыл бұрын
Great video, I have a friction wheel on a Peugeot 207 which I think is causing a short to earth on three sensors on this vehicle. The motor has a high resistance between the two terminals (nothing to the case) Could the 18 + ohm resistance be causing issues? With that one motor disconnected all the faults clear and don't return.
@4qd
Жыл бұрын
18 ohms does sound a bit high to me, but you'd need to check the spec to be sure.
@richardbraun6011
Жыл бұрын
How easy does that motor turn. I have one but seems tough to turn and the bearings are ok
@stevesmith1699
Жыл бұрын
It should be fingertip easy. We have had one where the magnets had broken internally and locked it.
@eviltux65
Жыл бұрын
Sadly not clear for an amateur where and how you exactly connected the probes . Not so useful for many
@barthoebergen4631
11 ай бұрын
He actually says exactly where he connected them, to the brushes. If you dont know where to find these I suggest that you find someone who can explain this to you (;
@paulsomers9306
Ай бұрын
You might need a little more training on basic electrical and motor components. Not trying to down you! We all need a place to start. I suggest buying Ugly’s electrical book. It’s a good guide to electric machinery.
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