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Author power tool nightmare
Motor

2006-06-08, 12:21 pm

I was just given 3 sack fulls of used and abused Hitachi and Bosch
angle grinders, unfortunatly they are all in bits, waiting repair. I
know the minimum of electrics, but i do understand how these brush
motors work, so i need to know how to test the motor components,
armatures, feil coils ect, for burn outs, shorts ect, before i start
putting them together, i hope at least one or two grinders will come
out of it, i have a multimeter, patience, and an understanding wife!

fabbl

2006-06-09, 9:21 am

Generally, Electrical testing is not safety testing. I'd say that other
than a visual/mechanical inspection (or in some cases a hi-pot) there's not
much more you can do. If you can put this stuff together and power it up
your 90% finished.


"Motor" <tadworth178@hotmail.com> wrote in message
news:1149778207.027975.28110@j55g2000cwa.googlegroups.com...
>I was just given 3 sack fulls of used and abused Hitachi and Bosch
> angle grinders, unfortunatly they are all in bits, waiting repair. I
> know the minimum of electrics, but i do understand how these brush
> motors work, so i need to know how to test the motor components,
> armatures, feil coils ect, for burn outs, shorts ect, before i start
> putting them together, i hope at least one or two grinders will come
> out of it, i have a multimeter, patience, and an understanding wife!
>



Motor

2006-06-12, 9:21 am

I will need to sort through the lot to sort the junk out and bin it, so
i can see what i've got to work with.
fabbl wrote:[color=darkred]
> Generally, Electrical testing is not safety testing. I'd say that other
> than a visual/mechanical inspection (or in some cases a hi-pot) there's not
> much more you can do. If you can put this stuff together and power it up
> your 90% finished.
>
>
> "Motor" <tadworth178@hotmail.com> wrote in message
> news:1149778207.027975.28110@j55g2000cwa.googlegroups.com...

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