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SA AW disassembly

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Old 11-26-09, 09:04 AM
  #1  
tsappenfield
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SA AW disassembly

Thanks to all who answered yesterday's question regarding removal of the right-hand ball ring. I now have a follow-up question. Sheldon Brown states, "The right and ball ring ha a two-sstart threat and must be replaced in its origina position, that position must be marked. String or adhesive tape may be attached to the spoke nearest to the letters,'SA' which are stamped in one of the notches on the ring. The whole internal can now be withdrawn from the hub shell. This is a standard right-hand thread, turn it counterclockwise to remove it". Here are my questions: I have looked very carefully at the ball ring, even used a magnifying glass, and I do not see the letters 'SA' stamped anywhere. This is a 1971 hub. Should I be looking elsewhere and does it really matter having the ball ring in the original position and what the heck is a two-start thread? Finally, is the last sentence about "standard right hand thread" in reference to the ball ring or the internal assembly?

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Old 11-26-09, 09:32 AM
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bikamper
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I've always found this to be confusing. When I first started working on these beauties, I would scribe, center punch, grind, or sharpie adjacent marks on the shell and ball cup. Sometimes, I got lucky and things lined right up. Most times, though, I would have to reassemble the ball cup umpteen times before things lined back. One time, I said t' hell with it and left things the way the were. I rode it and didn't die. Now, I don't even think about it when I tear into a hub. I don't know the reasoning behind it.

As to your other question re: standard right hand threads, is in reference to the rh ball cup. Pre 1963 hubs had a threaded lh ball cup with left hand threads. Post 63 are pressed in. The only threads in the guts are on the axle.
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Old 11-26-09, 10:09 AM
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mkeller234
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I have been able to find the SA logo on the two SW hubs I took apart but they were very faint and pretty small.... smaller than a pencil eraser. I think the sharpie tip sounds like a good idea.
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Old 11-26-09, 11:08 AM
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tsappenfield
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Still confused on another point. Since the hub is "fixed" in the clockwise position and only turns counterclockwise, does this mean that I have to have another set of hands to unscrew the ball ring counterclockwise or is there another technique I don't know about? Perhaps it unscrews clockwise? HELP!!!!!
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Old 11-26-09, 02:23 PM
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The rh ball cup 'unscrews' in a counterclockwise direction as you are looking at it. Lefty loosy, righty tighty.
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