- Thread starter jimbo84
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Agroshield
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See if you can open up the U-shaped bit that is folded over the wire. Solder into the base of the U. Close it up when finished.
Probably some JB Weld around it once tested as vibration might fracture it again.
I think they are made with the U's open, or maybe as L's and then bent over at the end of the winding process.
Probably some JB Weld around it once tested as vibration might fracture it again.
I think they are made with the U's open, or maybe as L's and then bent over at the end of the winding process.
Agroshield
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But right now, the wire that was continuous when the item was manufactured, has a break in it. It is discontinuous. What alternatives to solder might there be for restoring its continuity?
Ok but what has the motor come out of out of interest?
Nomad
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As a tinkerer / DIY type ( not a motor expert) some ideas :
It's been crimped - open up the crimp to remove the broken end of the wire.
The wire originally over-shoots the crimp and connects from the left, will the snapped wire reach the crimp if you go direct and connect to the right side of the crimp?
Some of the other crimps have 2 wire connected ( looped in & out), the one in your photo looks to only have 1 (broken) wire - am I looking at it right?
It's been crimped - open up the crimp to remove the broken end of the wire.
The wire originally over-shoots the crimp and connects from the left, will the snapped wire reach the crimp if you go direct and connect to the right side of the crimp?
Some of the other crimps have 2 wire connected ( looped in & out), the one in your photo looks to only have 1 (broken) wire - am I looking at it right?
Johnnybravo
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Bear in mind the commutator gets hot. Something I never really factored in as a schoolboy when I rewound a motor for an RC car and soldered the triple windings in. Went like stink for all of about 30 seconds before it died a death . Autopsy showed it had thrown all the soft solder off the commutator. It seems Automotive starter motors etc that have soldered in windings are done with a higher temperature solder for this very reason…
Johnnybravo
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If that armature is irreplaceable I would laser weld the wires back on, but if it’s from your favourite dewalt drill, I would suggest you buy a new one!
I was in need of a pendant drill, I took a punt on a box of bits as spares and repairs on ebay, this was one of the motors in the box.
A member on here kindly sorted me out with a working set up so the box of spares and repairs off ebay isn’t needed I’ve got one of the other items in the box working so I can sell that on to cover what I paid for the ebay box so this motor stands me at nothing.
They are quite spendy to buy new which is why I was hoping I might be able to repair it.
There isn’t enough slack on them to get them into the crimps enough, there’s just enough to get them to where they are broken. Even if I could pull a bit more on them I think the extra tension may just snap them again.
To add, there’s at least 3 broken.
I didn’t think of the heat, good point.
