Saw Spark Show

[Spilsy Avid PP Poster! Find all posts View Profile Close Spilsy]

I have inherited a sliding mitre saw, but when I plugged it in and ran it, I got a bit of an interesting light show when releasing the trigger.

https://youtu.be/yKgdQ0ZGhIE

Any thoughts?

[oceanracer Moderated member Find all posts View Profile Close oceanracer]

Not sure about the saw, but ive never heard the camel toe song

[mjrandom Out of control poster! Find all posts View Profile Close mjrandom]

Brushes / commutator. Pull the brushes, should be two little plugs and then the brushes come out. Look through the holes and look for damage to the commutator.

Obviously unplug first and this isn't electrical advice....

[Spilsy Avid PP Poster! Find all posts View Profile Close Spilsy]

Not sure about the saw, but ive never heard the camel toe song

Its a great song, my physics teacher introduced me to it in year 12...
Not sure where the reference has come from though?

[Spilsy Avid PP Poster! Find all posts View Profile Close Spilsy]

Brushes / commutator. Pull the brushes, should be two little plugs and then the brushes come out. Look through the holes and look for damage to the commutator.

Obviously unplug first and this isn't electrical advice....

Very nice ass covering there. I might look into contacting the manufacturer. The saw is only a couple of years old, and has been well looked after.

[Spilsy Avid PP Poster! Find all posts View Profile Close Spilsy]

Thankfully, Aldi have used a fairly large german tool manufacturer for their saw:
http://products.einhell.com/com_en/s...ab-description

With a bit of luck, Einhell will come to the party!

[oceanracer Moderated member Find all posts View Profile Close oceanracer]

Its a great song, my physics teacher introduced me to it in year 12...
Not sure where the reference has come from though?

The YouTube link. When it finished it showed your page and what youve liked there.

[Spilsy Avid PP Poster! Find all posts View Profile Close Spilsy]

Response from Einhell:

Hello Ben

Thank you for your email.

Usually the spark happens when the Carbon brushes are worn out.

Have you checked the carbon brushes ?

It’s a discontinued range and we don’t stock these units anymore .

We only stock minimum spare parts for the unit . However if you can provide us your details I can forward this to the supplier in overseas and they will get in touch with you directly.


Apologies for any inconvenience

[Spilsy Avid PP Poster! Find all posts View Profile Close Spilsy]

The brushes:

[mjrandom Out of control poster! Find all posts View Profile Close mjrandom]

The other one ok? What about the commutator?

[Spilsy Avid PP Poster! Find all posts View Profile Close Spilsy]

Both brushes are identical. I can't seem to break any further into the motor, and the cover doesn't let me look in.

[Spilsy Avid PP Poster! Find all posts View Profile Close Spilsy]

[mjrandom Out of control poster! Find all posts View Profile Close mjrandom]

No missing segments in the commutator? Do you have a multimeter? Check for shorts and if ok clean the commutator give the whole thing a blast with compressed air and reassemble. Get someone you don't like to test it. If it sparks again the wheelie bin is a good place for it.

[Spilsy Avid PP Poster! Find all posts View Profile Close Spilsy]

No missing segments in the commutator? Do you have a multimeter? Check for shorts and if ok clean the commutator give the whole thing a blast with compressed air and reassemble. Get someone you don't like to test it. If it sparks again the wheelie bin is a good place for it.

All looked ok I think. Will check again tomorrow. I'm hoping the bin doesn't need to be involved...

[Fred63 Advanced Member Find all posts View Profile Close Fred63]

looking at your pic of the commutator it looks like 2 segments are more of a copper colour is it the way the pic was taken or are they not as dull as the other segments?
That would indicate open circuited winding on those segments no current flow to dull the copper.
check with a multi meter