Broken riving knife bracket

[Robbo60]

Please don't ask how but the bracket my riving knife attaches to has broken off. It forms part of the whole motor housing. It is a cast item. Is there any "adhesive that would safely put this back together - epoxy cement type stuff.
Also in second photo is the "sliders" in my saw. It seems odd that these are fully tight?
TIA

 

[RichardG]

You’ll have to get it welded in my view. Is it definitely cast as it looks almost like welded steel in the picture? It’s also slightly worrying that the blade has been in contact with it or was this just when it snapped?

 

[Robbo60]

Thanks. Getting it welded means removing the whole housing which I am trying to avoid if possible.
Think blade came into contact and snapped it as was loose?

 

[Lazurus]

Tig brazing I think would be the way forward, not worth the risk to do a bodge, what cost your safety!

 

[RichardG]

Tig brazing I think would be the way forward, not worth the risk to do a bodge, what cost your safety!

That was exactly my though, the knife is there as a safety feature, the last thing you want is that flying towards you when you cut a springy board which try's to nip the blade.

Another option maybe to make up your own metal bracket? Is a spare part not available?

 

[Robbo60]

Thanks but what has snapped off is part of the motor housing. So it goes up and down with the blade.
The Riving knife then bolts to that. It couldn't kick back as throat plate would stop it.

 

[LJM]

Could the broken remains be cut away and a replacement bolted in place?
Either way, it looks like the motor housing will need to come out.

 

[Fergie 307]

To have any hope of brazing or welding something that thin you will need to preheat both parts before either brazing or welding it. There is no alternative to taking the motor housing off if you are going to go down this route I'm afraid. You need to find someone who is experienced in repairing the material, cast iron I assume. A specialist welding company should know how to do it. Failing that your local engine reconditioner or a classic car club would probably be able to recommend someone..To repair a thin casting like this properly is not a job for an amateur I'm afraid. As others have suggested I would be inclined to try and replace it with something bolted in place of possible, much easier and cheaper.

 

[Robbo60]

Thanks Fergie. I'm exploring that possibility at the moment. Going to send a speculative e-mail to Scheppach to see if they would supply a new housing ? £?