Problem fitting new blade to circular saw

[paul24dual]

Hi everyone, i'm trying to fit a new blade to my saw but when i go to cut the wood the blade does not work. I have fitted a 30mm to 20mm reducing ring and everything seemed to fit ok. I'm out of ideas.

Should the reducing ring fit flush inside the blade without moving? the ring fits perfect but falls out of the blade, should this happen or should it be a tight fit?

Thanks

 

[Brian½]

I had the same problem a couple of years ago with an angle grinder Paul ... it all boiled down to the ring insert.

 

[Chrispy]

What do you mean does not work? does it go round? does it burn?

 

[Phil Pascoe]

The blade doesn't work - - - - doesn't cut, or doesn't spin?

 

[Graham Orm]

Is it facing the right way?

 

[paul24dual]

The blade spins but when it touches the wood it stops spinning!

 

[paul24dual]

Is it facing the right way?

yes it is

 

[Graham Orm]

The blade spins but when it touches the wood it stops spinning!

Does the motor continue to run ?

 

[paul24dual]

The blade spins but when it touches the wood it stops spinning!

Does the motor continue to run ?

yes

 

[paul24dual]

the reducer ring fits the blade flush but falls out, should it fit tight into the blade?

 

[marcros]

is it a budget blade?

 

[paul24dual]

is it a budget blade?

http://www.evolutionstore.co.uk/blacktip/18540.php

 

[Graham Orm]

Should be easy enough to see what's wrong then, the blade obviously isn't being gripped.

 

[paul24dual]

Should be easy enough to see what's wrong then, the blade obviously isn't being gripped.

what would cause this to happen?

 

[Myfordman]

Is the insert thinner than the blade? It needs to be otherwise the blade will not be gripped.

 

[paul24dual]

Is the insert thinner than the blade? It needs to be otherwise the blade will not be gripped.

its the same thickness but very loose

 

[Myfordman]

It does not matter a toss if it loose but it MUST be thinner. file a few thou off it and try again.

 

[rafezetter]

It does not matter a toss if it loose but it MUST be thinner. file a few thou off it and try again.

went and dry it on a bit of glass.

 

[paul24dual]

It does not matter a toss if it loose but it MUST be thinner. file a few thou off it and try again.

Thanks for the advice. I was going off what the instructions say. Especially the last bit

Using a small hammer gently tap the reducing ring
around the outer edge until it is flush with the blade
body, ensuring it is flat and does not protrude form
either side of the blade. If the ring is loose do not use it.

 

[Otto]

Sounds like the arbour bolt is not in contact with the plate of the blade, either the reducing ring is thicker than the plate or the arbour bolt diameter is too small to grip the plate properly beyond the reducing ring. If it's the case that the ring is too thick I'd try a bit of wet and dry paper on a piece of glass and rub the ring on that. Check the diameter on the arbour as well, it should be like a washer behind the blade to grip the plate, could be too small for that reducing ring. I can't use a blade with a reducing ring on my plunge saw for that reason.