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Riccar 600FA hook drive gear

I recently replaced what the parts list describes as the Hook Drive Gear on my Riccar 600FA sewing machine, but I'm not able to figure out how to get it "re-aligned" so that the needle doesn't hit the shuttle race cover, shuttle race holder and/or the shuttle hook (whichever it may be hitting; appears to me to be the shuttle hook). The hook drive gear that I replaced was split completely with approximately a 1/16" gap and it seems that - like a motor driven machine - the "timing" is off but I cannot figure out where the adjustments need to be made in order to "re-align" it. Can you help?

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Posted on Jan 02, 2017

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SOURCE: hi i recently brought a

Here is a link to a site with threading diagrams for some Riccar models. Hope they have your model, if not look at the ones they have should be very similar. Hope this will fixya up...

Posted on Apr 25, 2011

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SOURCE: what size bobbin is used

class 15 A size

Posted on May 18, 2011

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SOURCE: Problem with Riccar 8850 Vacuum There

Hello there, when sparks come flying out of your vacuum cleaner it usually is as a result of messed up connections and power fluctuations.The probability of the motor needing replacement is very high as unless i examine it i cannot say for certain but one thing i can say for certain is that the entire wiring of the unit has to be inspected thoroughly because this is where the main problem would have emanated from. The unit would definitely need other components other than the motor changed this is because if the other components which have been affected dont get replaced then even a new motor will face the same problem after a relatively short period. best refer the unit to an expert to determine the extent to which the other components are affected and what other parts are damaged. Also to determine if the entire motor needs replacement or some part of the motor can still be salvaged.
Hope this support has been helpful?
Thank you for visiting FixYa.

Posted on Sep 08, 2011

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Greetings from,

I just wanted to let you know that we are an authorized Riccar dealer, and we can certainly get the replacement wheels for your Riccar 4812 upright vacuum cleaner.

We stock some parts, and what we don't stock we'll order for you. We don't currently have the wheels on our site, but if you still need the wheels, you may email me at

We do stock a lot of parts for your 4812 Riccar, including the following;

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I look forward to helping you if you still need to get the wheels for your vacuum.

Thank you,

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