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PostPosted: Thu Oct 26, 2017 10:43 am 
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Hi there,

I'm looking for some help. We purchased the above many years ago and then it sat in a box for a LONG time. We recently inboxed it and started using it and all was fine, it has only had very light use for timber.

On using it two days ago it started catching on the wood/stopping as though it didn't have sufficient power to cut the timber and then when I released the 'On' button it kept spinning for a long time afterwards.

I cleaned out all of the sawdust etc yesterday and gave it a quick test (not cutting anything - I just activated the blade and then stopped it and it kept spinning for a long time.

My husband said he could see some sparks inside too

What I am wondering is whether this is terminal or whether it is something that could be fixed.

Any advice gratefully received.

Thanks in advance


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PostPosted: Thu Oct 26, 2017 11:08 am 
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heeelllooo and welcome Tvgirl30 :welcome: :welcome: :welcome:
sounds like binding on the blade
as in wood not dead flat and as you cut the wood it starts drop and move nipping on the blade does the cut have tiny steps on the cut face ??
some saws have a blade brake that stops the blade spinning quickly this can wear out or fail over time
in its self is not a problem other than the moving blade needs to be given respect till it stops

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PostPosted: Thu Oct 26, 2017 11:48 am 
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Or the blade is loose on the shaft and is "spinning on" after the motor has stopped?
If it is that it probably only needs the centre bolt tightening.
Unplug the machine before making any adjustments.

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PostPosted: Thu Oct 26, 2017 11:51 am 
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Dave54 wrote:
Or the blade is loose on the shaft and is "spinning on" after the motor has stopped?
If it is that it probably only needs the centre bolt tightening.
Unplug the machine before making any adjustments.

ETA :welcomeuhm:


yes thats a good call :thumbright:

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PostPosted: Thu Oct 26, 2017 12:05 pm 
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If I understand you correctly the saw has not had a lot of use so it really should not be losing power on cuts. There are two issues as I see it and one is the blade brake and the other motor power. The blade brake is designed to stop the blade spinning as soon as power is cut. On this type of saw the blade guard drops into position as soon as the blade is clear so the brake is not crucial as the guard will prevent you inadvertently touching the spinning blade. I am not sure if the brake is an electrically operated device that pushes a pad on the blade to brake it. It could be this pad or the device is not working correctly.

Turning to the loss of power it could be the blade is blunt and as BA says above it is binding. Have you blunted it hitting a nail? This brand is made for BnQ and I think they have a 3 year warranty so if you have a receipt it is worth checking that. These saws are a generic Chinese produced saw and you see them badged up in various brand names and livery. It is not easy to find spares or to be able to do much in the way of repairs. I have a Power Pro sliding saw that is probably the same as yours and I have had good service over the years I have had it. It weighs a ton though and I get a hernia humping it around these days :lol:

Hope this helps

DWD

PS Just seen Dave's post and that is a very good point

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PostPosted: Thu Oct 26, 2017 7:06 pm 
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Well you were right - it was just the blade that had come loose! I can't believe I didn't think of that myself!

Thanks for all your help though!



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PostPosted: Tue Jan 02, 2018 2:45 pm 
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Cheap Chinese they may be. I got one of these big 305mm saws from a B&Q reject bin 10 odd years ago. It has had an astonishing level of abuse over the years, and because it is such a pig to lump around, it lives in a damp outbuilding (it's got rust all over it). Only changed the blade for a new one recently. Still works a treat every time I use it. Must be the best value for money tool I have ever bought. Only issue I had is the laser light that doesn't work anymore.


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PostPosted: Tue Jan 02, 2018 3:28 pm 
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If you check the laser lens it might be chock full of dust. I have to clear my one regularly and I have no idea how the dust gets in. It is only a couple of screws holding the lens on so it is an easy job. :thumbright:

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PostPosted: Thu Jan 04, 2018 2:53 pm 
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The light itself is probably fixable. I haven't bothered. I didn't find it useful at all, the led housing is so cheap that once it gets knocked, it doesn't point at all as to where the blade is cutting anyway.


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