Skilsaw circular saw blade wont rotate when arbor nut is tightened

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Old 04-20-14, 12:48 PM
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Skilsaw circular saw blade wont rotate when arbor nut is tightened

Changed blades on saw, tightened arbor nut in accordance with the manual and blade or motor wont turn. It will turn if I just hand tighten, but if I just go a smaill bit past hand tighten, with a wrench, the saw blade wont turn.
 
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Old 04-20-14, 01:29 PM
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Are you releasing the blade brake to let it spin? Have you powered it up after installing the blade? You don't have to really torque the nut/bolt, since it is a left hand thread. Snug plus a little is enough. Natural rotation of the arbor will keep it tight.
 
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Old 04-20-14, 01:38 PM
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Some blades come with a spacer on the shaft for different diameters. If the old blade had a spacer and it is still on the shaft then the new blade may not be seated properly. Not sure if that would contribute to the problem you describe, but a place to check.

As you tighten it down by hand you say it will turn. While turning it do you see any clearance problems. Tighten slightly until it starts to have difficulty and check for where it is binding.

Be sure the new blade is inside the guard that slides back during cutting.

Bud
 
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Old 04-20-14, 04:37 PM
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Does not have a blade brake, it is a skilsaw 54 HD, took off the nut and washer, replaced the blade, hand tightened then 1/8 turn with the wrench. No clearance/binding.
 
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Old 04-20-14, 05:21 PM
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According to ereplacement parts, there should be a washer of some sort under the blade, then blade, washer, bolt.

Does it run with no blade?

I can't imagine anything, unless you are somehow pulling the armature out of the housing when you tighten it.

Still have the old blade?
 
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Old 04-20-14, 05:33 PM
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Is this the type of skilsaw that has a diamond knockout... and did you knockout the diamond from the new blade?
 
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Old 04-20-14, 06:32 PM
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Don't think its a diamond...here's the parts breakdown...Skil 54HD Parts List and Diagram - (F012540005) : eReplacementParts.com
 
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Old 04-20-14, 06:54 PM
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no diamond, yes it runs with no blade, also runs if I only hand tighten it, but if I go the recommended 1/8 turn past hand tighten it doesn't run, no sound, no vibration no nothing. I have the old blade, put it back on and same thing
 
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Old 04-20-14, 07:54 PM
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Do you have both disks marked as part #28 on the diagram? One inner and one outer.
 
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Old 04-20-14, 08:34 PM
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Yes, I will post photos tomorrow. Thanks for all the help so far!
 
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Old 04-20-14, 09:29 PM
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Have you tried rotating the blade to various positions to see if it will run?
 
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Old 04-21-14, 10:58 AM
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Yes I have, nothing happens.
 
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Old 04-21-14, 11:06 AM
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Here are some photos..........
 
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Old 04-21-14, 11:15 AM
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It looks to me like you have two washers?? Normally you only have one on the outside of the blade. They both read "do not over tighten" Take the one on the saw, install the blade, install the washer, lastly install the screw.

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Old 04-21-14, 11:20 AM
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The inner support disk looks to be upside down. The smaller tapered surface should face the motor and the larger surface the blade. In other words, the writing on both disks should face away from the blade.

When you tighten it down as it is now, the large surface is probably locking the shaft against the bearing flange.

I'll lay odd thats the problem.

Or what TI said! But the parts diagrams show 2 identical parts so there should be a disk between the bearing and the blade, then another outside the blade, then the bolt.
 
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Old 04-21-14, 12:52 PM
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Just my two cents

Like already posted, the broad side of the spacers should face the blade.

One spacer looks like it has writing on it and the other doesn't (hard to tell from the photo.

I suspect the one with the writing goes to the outside of the blade under the bolt just as a reminder not to over tighten.
 
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Old 04-21-14, 02:29 PM
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Pretty sure I'm right, but you can also look at the old blade and check the wear patterns on both sides around the hole. Prob both the larger diameter of the disk if it was working before.

Pictures do really say a thousand words don't they?
 
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Old 04-21-14, 04:51 PM
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I suspect the one with the writing goes to the outside of the blade under the bolt just as a reminder not to over tighten.
Ding-Ding-Ding-Ding-Ding! We have a winner!

Circled washer on right goes on first, with the side that is now facing the plywood facing the blade. Then the blade goes on, then the circled washer that is currently on the saw goes on top of the blade with the writing facing out! Then the nut goes on... and as it says on the washer, do not overtighten!
 
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Old 04-21-14, 05:52 PM
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Hey now X....give credit where credit is due. I said that right after the pics were posted. Since those both have the same part number (obsolete and not available of course) I'll bet there is writing on both of them. Why would they make 2 identical items only have one with writing and one without?

Wait...maybe my posts are only showing on my PC....yeah, thats probably it....lol.
 
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Old 04-21-14, 05:54 PM
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Okay, we'll call it a tie. LOL!
 
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Old 04-21-14, 06:03 PM
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And all kids get a trophy at the end of the season.
 
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Old 04-21-14, 09:23 PM
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The "thank you for participating" ribbon. LOL
 
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Old 04-22-14, 09:12 AM
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Good job guys. I know Hanson is grateful for your efforts.
 
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