Singer 500 series Allen hex key sizes needed to replace gears?

I'm trying to replace a broken plastic/nylon feed drive gear in a Singer 522 and while I have loosened the set screws and located replacement gears I cannot determine what size Allen key is needed to release the old gear.

I have a SINGER_500.pdf parts list for the the 500 series (1974 printed in USA) but it does not give sizes and I cannot find sizes on the web.

The manual's part nrs. for the gears are 153587 and 153490, while this website

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numbers 174488 and 153487A picture showing the gears and shafts concerned is on page 67 of a 538manual here:
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as a tinyurl here:
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'm hoping someone here knows, I'm guessing it uses imperial measuresand my crude measurements tell me the allen screwsare around 5/64 inch (1.98 millimetre) or 3/32 inch (2.48 millimetre). Needless to say I've never repaired a sewing machine in my life! I imagine that getting the timing right afterwards must be quite tricky. It's in Italy otherwise I'd just take it to a service centre.

Bob

Reply to
googlebob
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Hmmm...Singer had two 500 series. One was the 500 series slant-o-matics, the 500 and the 503. These were all metal machines with no plastic whatsoever. They had metal gears. =20

The other machines were called, I believe, "Fashion" or "Style" Mates. These had the plastic gears. So I am wondering if your SINGER_500.pdf file is for the before-mentioned 500 model slant-o-matics and not the

522 you have.

Ron Anderson, at

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probably has what youneed and can answer your questions.Changing gears is not all that difficult. You are welcome to join usover at the YAHOO Wefixit group, we're a much of sewing machine 'shadetree' mechanics. There are several 'OSMGs' ('old sewing machineguys/girls) who provide lots of help and info.

--Irene

-------------- You only live once, but if you do it right, once is enough.=20

--Mae West=20

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Reply to
IMS

On 2005-08-17 snipped-for-privacy@sneakemail.com said: >Newsgroups: alt.sewing >I'm trying to replace a broken plastic/nylon feed drive gear in >a Singer 522 and while I have loosened the set screws and located >replacement gears I cannot determine what size Allen key >is needed to release the old gear. >I have a SINGER_500.pdf parts list for the the 500 series (1974 >printed in USA) >but it does not give sizes and I cannot find sizes on the web. >The manual's part nrs. for the gears are 153587 and 153490, while >this website >

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>has numbers 174488 and 153487 >A picture showing the gears and shafts concerned is on page 67 of a >538 manual here: >
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>com/Sewing_Machine_Repair/Singer_Sewing_Machine_maintenance/S >inger_538.htm or as a tinyurl here: >
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>I'm hoping someone here knows, I'm guessing it uses imperial >measures and my crude measurements tell me the allen screws >are around 5/64 inch (1.98 millimetre) or 3/32 inch (2.48 >millimetre). Since I often face this problem, I have sets of hex keys, both English and metric. Look closely - there are other patterns too. Some instruments use a splined key called "Bristol".

On Sailrite.com website are a couple articles describing how to time a machine. Worked for my Bernina commercial. If there are no timing marks on the needle bar, you will need the timing dimension of needle lift from bottom, around 2mm, and a good way to measure it (I use a dial indicator).

With care and good sense, you should be successful. It isn't rocket surgery.

Tom Willmon Mountainair, (mid) New Mexico, USA

Net-Tamer V 1.12.0 - Registered

Reply to
twillmon

Italy has Singer repair shops...I had to have an American Singer repaired when we moved there. Ran it on a transformer for 5 years after! No problems.

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or as a tinyurl here:>
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> I'm hoping someone here knows, I'm guessing it uses imperial measures> and my crude measurements tell me the allen screws> are around 5/64 inch (1.98 millimetre) or 3/32 inch (2.48 millimetre). >> Needless to say I've never repaired a sewing machine in my life!> I imagine that getting the timing right afterwards must be quite > tricky.> It's in Italy otherwise I'd just take it to a service centre.>

Reply to
Alice M. Bonnell

The screws use a 3/32" Allen key

Reply to
Ron Anderson

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