We removed the old blade (unfortunately we didn't pay close attention to how the old blade was in there to begin with), but when we re-installed the new blade there was no power when turned on. At first we thought the saw, since it is very old, just died; however, when we removed the blade and tested it the motor still ran fine.
Is there some sort of lock we are missing when we re-installed the blade? We tried, at least what we think was, every variation on the position of the washers (I guess that is what they are) around the blade and still no power.
I'm sure it is something very simple, but we need HELP!!
Re: How do you re-install the Skillsaw 5150 blade?
I,ve personally never heard of a problem quite like yours. I use skill saw brand saws every day and the arbor and washer will only make the blade wobble if installed incorrectly. Blades can be turned around to cut different types of material as well. Check to make sure the hole or diamond is the same on the new blade(you might have to punch it out) if its not seeding properly on the saw, you could also check under the guard to make sure nothing is binding the saw. The only other thing I could suggest would be to check the lock button (the one you hold to change blades, that stops the saw motor from turning) if that is stuck, your saw won't run. Good Luck!!
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The locking button on this saw is designed for safety. If you are attempting to change the blade it should NOT be plugged in. It sounds as if someone has pushed the lock button while the motor was running and sheared it off. The only tool that is required to change the blade is the supplied wrench or an equivalent box end. If you cannot make the repair yourself for have the equipment repaired you can take a pair of vise grips. (Use cardboard to prevent warping or gouging the blade) and clamp the edge of the blade below the teeth. The vise grips will stop at the front of the saw as it is too large to pass by the guard allowing you to loosen the nut. Clamp the new blade in the same way only the back of the saw will be used to tighten.
I highly recommend that you either repair yourself or have the tool repaired by a professional.
Parts schematics are all over the net for this tool, here is an example:
Three screws need to be removed, one that holds the end of the lever to the guard, and the two inside the guard that holds the guard to the arm housing. Pay attention to which screw goes where as they are not all the same.
Once this comes off, you may have to remove the tab washer and spring and spring washer from the old safety cover, unless your replacement comes with this already attached to it. Pay attention to how the spring and tab washer are situated before you remove them so that you can put it back together properly.
Then reassemble the parts in reverse order. You may also need to switch the pivot in the center of the safety cover and the roller on the bottom edge if these parts are not with your replacement saftey cover.
1. Unplug the saw. 2. Locate the blade lock button used to lock the motor shaft when changing a blade. For your saw, this button is usually located on the left side of the blade guard somewhere around the motor housing. 3. Push the button while rotating the blade until the button engages and the blade will no longer turn. 4. Use the wrench that came with the saw (or another wrench) to loosen and remove the blade bolt. For your saw the bolt should have standard right hand threads which means you loosen the bolt by turning it counter clock-wise. 5. Remove the old blade and replace it with a new blade of the same mounting type. Some blades have a round through hole and some blades have a diamond through hole. 6. Re-install the blade bolt and tighten clock-wise while holding the blade lock button down.