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can anyone tell me what may be the problem with an old 80s 10" ryobi that has worked well in the past, havent used it in 8-10 yrs. until more recently. I have burning sparks which are coming out ofthe motor housing above the rollers which look like burning sawdust shooting out. motor runs fine but these smoking particles caused me to shut her off, checked the brushes and they are fine, don't want to go on a fishing expedition without having any idea what may be the cause. That usually ends up with a pile of parts that will never be put back together and 12 hrs. of wasted time. anyone have any possible causes I could look for? Thanks: Pete
 

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If its been stored for 10 years in a wood working shop it most likely is just sawdust burning off. Or even rust particles inside the motor.

try just taking off any covers to inspect for dust, but dont start stripping the motor. Take it to an outside area, make sure you have a fire extinguisher to hand, and just let it run for a few minutes, you have nothing to lose.

Of course disconnect the electric BEFORE using the extinguisher if its a water one.
 

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That is probably an all metal case on that old of one. Might be a bare wire rubbing against the case. I am not an electrician, but I would unplug it and turn it on and check the case to the plug prongs, for continuity,with a multiimeter. If it shows where there is any contact between the case and the plug, you have a wire shorting out.

Could be some of the insulation has gotten brittle and rubbed off.

Herb
 

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Welcome Pete. Usually you can take a cover off that doesn’t involve taking parts off except for maybe a handle or switch. Once off you may be able to look in and see what the issue is. You would also be able to blow some of it clean.
 

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Pete welcome to the Router Forums.

Make sure you have it unplugged. Then remove the cover over the blades and see if there is saw dust and chips packed up around the blades where it is causing problems. If you have compressed air blow out any dust and chips and take a closer look. Look for anything that might be loose or rubbing against other parts and for deteriorating insulation on any wires you see. Also check and make sure the blade mounting screws are tight

The Ryobi AP10 was the highest rated planer when it came out on the market. I still have mine and it still works fine. It has not seen much use in the last few years and I have purchased a new Dewalt 735 so I really need to clean it up and sell it to it's new owner and reclaim the space it is occupying in my shop.
 
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