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Cons:It has a lot of vibration. The full vibration of the mechanism is transmitted into your hand which holds the rear handle. You don’t want to use this saw for more than a few minutes per session.You should use gloves.
It broke on me after the 3rd or 4th time I used it. I pulled the trigger and the blade wouldn’t move.I took it apart and found the connecting rod was not attached to the blade mechanism. The little clip on top of the link pin had fallen off. The clip looked possibly damaged on top. I bought some new 6mm retaining rings (p/n 90967A110 from mcmaster.com) and managed to put one back on the link pin. My tool is now working again.
To see what I’m talking about, go to servicenet.blackanddecker.com and look at the Exploded Art assembly diagram. Zoom in on the middle assembly. Notice the sprocket with gear teeth on it.A “dogbone” (connecting rod) connects the sprocket to the blade holder mechanism. This converts circular motion to vibratory motion. Notice the two link pins sticking out of the dogbone, one on each end. On my unit, the pin on the right side had the upper retaining ring fall off. This allowed the pin to slide down below the dogbone, making the unit fail to operate.
I didn’t have external retaining ring pliers that were small enough to handle the new clips that I bought. You need pliers with 1mm tips, with no more than 0.5mm separation between the tips.Instead, I inserted some small needle nose pliers into the small part of the clip. I was able to spread the clip apart enough to slip it on the link pin and get it into the groove. The link pin has to be held in place while you do this (requires 3 hands). See the attached photo of the 6mm retaining rings that I bought from mcmaster.
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