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Post by sparkbubble on Jan 9, 2022 15:04:28 GMT -8
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Post by Markpd on Jan 9, 2022 15:49:22 GMT -8
Err, plastic thing isn't very descriptive  , is it a round plastic 'nut'? (a knob). And am I right in thinking that this knob holds the wheel to the vertical part of the base? Like this pic? Or can you post a photo of it here so we can have a better idea?
Also I don't know what you mean by the gear like thing, can you find an image of that in Google etc? Or is it a spacer? Like in this pic? If it's the spacer, you'll need a replacement as you can't tighten the nut without it, though instead of a collar-spacer, you could get another nut (though you would have to hold it still whilst you tighten the knob). Anyway, when/if you have all the parts now, you could either tighten the knob with a large pair of pliers or pipe pliers, be careful not to go mad with it though or you'll break it! Or you could make the nut resistant to undoing by putting a small amount of weak glue, not super glue! lol. I suppose blue tac might work too??
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Post by LilyandDaisy on Jan 9, 2022 16:32:01 GMT -8
I had the same issue. I initially contacted the shop I bought the wheel attachment from and they sent me a new wheel attachment which wasn't any better. I think there were two issues. Firstly, the plastic knob didn't tighten well enough. It comes loose too easily. Secondly, the thread on the axle stopped slightly too soon which meant essentially you couldn't screw the wheel up tightly enough, there would always be some empty space allowing the wheel to wobble. What I did was use multiple thick washers to fill the unthreaded space, and I replaced the plastic knob with a metal wing nut (some Silent Runners are sent out with a wing nut instead of the knob anyway). This seems to work well for me although I don't use the wheel all that often. I hope my description made sense. Let me know if it doesn't and I can post some photos later but I can't find my camera right this minute and my phone is dead.
I don't know how critical the gear thing is. Perhaps try to find a replacement online. Markpd's diagram shows what it's called.
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Post by Scott on Jan 10, 2022 4:30:15 GMT -8
Is it anything like in the image below? The little gear-like thing is a lock washer; it's supposed to prevent the knob from unscrewing. As noted, you can use a wing nut; imperfect as it might be, you should also get a replacement lock washer. There are other solutions, too: 1) two nuts. You can a nut on, tighten, then the knob outside it. The two together will be more secure. 2) you can replace the knob with a lock nut. It looks like a large nut, and has a nylon inset which helps secure it against the threads. 3) you can get a compound called Threadlocker by Loctite (though I'm sure there are other brands). You paint it on the threads and then put the nut on, and it holds it in place. It comes in several strengths--you'd want the purple compound, which is detachable by hand. .jpg) |
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Post by sparkbubble on Jan 10, 2022 6:15:09 GMT -8
I have the spacer and the two discs, no lock washer. Apparently, I wasn't using it right, because the wheel still unscrewed. Guess I'll have to find another one. Also, the little round end-piece is a nut. Markpd, the first image is correct. I didn't know what it was called. Thanks for the advice. I'll look for nuts that match the diameter of the screw. Is a lock nut something you can just find at lowes or home depot?
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Post by Scott on Jan 10, 2022 7:10:53 GMT -8
Yes, lock nuts are very common. Any of the large or small hardware stores ought to have them (along with the locking compound as an alternative). The stores also should have devices hung up in the hardware aisle that will help you verify diameter--a big card with size-marked bolts and holes mounted on it that you can screw the existing knob/nut onto. The lock nuts look like this:  |
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Post by sparkbubble on Jan 10, 2022 7:41:30 GMT -8
All right. Thanks!
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, is it a round plastic 'nut'? (a knob).
), late 70s
