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How to replace Ryobi circular saw CSB140LZ lower guard assembly

I have a Ryobi circular saw CSB140LZ that has a bent lower guard which the saw blade rubs against. I purchased a replacement lower guard assembly and cannot figure out how to get the old one off. There seems to be a retaining ring that rests in a groove on the spindle which prevents the guard from coming off. Doesn't appear to be a snap ring. I took the whole assembly off and tried from the back but couldn't see how parts separated. Any idea how to do this?

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Clean the area where the guard attaches to the hub assy. It is a snap ring that is holding the guard on. You will need to either use a pick or a small flathead screw driver in order to remove it. There should be a little tab that you will be able to work out. Look around the entire perimeter of the hub to locate it. You may need some extra light to see it. Stick the pick or small flathead behind the tab from the right. Work the tab out and above the hub. Now you can work your pick or scredriver around the perimeter to remove the ring. Install it in a similar fashion but use the flathead to guide the ring back into the groove, working it around the opposite way.

Posted on Sep 28, 2009

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Often these retaining rings have either a near-invisible gap OR they are more than 360 degrees around, sometimes going around twice.

If these are the type you have, one has to use a sharp intrument to catch and lift the end outward and uncoil the thing from the groove.

It can take patience...

Posted on Sep 28, 2009

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