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Author
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Topic: Sierra Changer lockup problem
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Bobby Lee
Sysop From: Cloverdale, North California, USA
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posted 21 July 2002 08:43 AM
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The string end did disappear when the string broke, right Mick? |
mickd
Member From: london,england
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posted 21 July 2002 12:24 PM
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B0b
yes - it did disappear, but I can't be sure it didn't end up on the floor somewhere. I did have a scout around and couldn't find anything. The break was at the changer end.
Mick |
mickd
Member From: london,england
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posted 24 July 2002 03:40 PM
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At the last minute I postponed blasting out the changer with a high-pressure air-hose when I suddenly realised it might blow out my pull-rod spacers (2 or 3 fell out while I was cleaning the changer with a toothbrush - I put them back in easily enough).I'm still not 100% sure (see thread re Sierra 'Hook'), but it looks like my guitar has the hook that prevents strings dropping into the changer anyway. I went out and got a steel rod of the same dimensions as my axle and was all set to knock it through when I rang Tom@Sierra again & he suggested I lube the axle by dripping oil from above while rotating the string 4 control finger (with the axle pushed through 1/4" to allow this movement). I did this and then readjusted the axle back to standard and - hey presto - the finger was moving freely  . I'm touching wood at this point, because (after 2 days) the finger still seems to be moving ok. I won't know if the problem has gone till I put all the rods back in and string up, but it's looking good. Maybe it could all come down to insufficient lubrication  ? [This message was edited by mickd on 24 July 2002 at 03:42 PM.]
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Pete Burak
Member From: Portland, OR USA
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posted 24 July 2002 05:21 PM
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Insufficient Lubrication...If I had a nickle for every... Just wait 20 min and try it again Mick. |
mickd
Member From: london,england
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posted 25 July 2002 03:11 PM
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Pete - its going to take me a lot longer than 20 minutes to get all the pull rods back on !
Anyway, now that its all disassembled, I'm taking the opportunity to clean & lube everything in sight, plus swap out the A-pedal and Pedal 5 aluminium cross-shafts for the special steel shafts I had made to (hopefully) eliminate the infamous U12 torsion effects. I've been pleasantly surprised at how easy it was to pop out the shaft bushings and install the new shafts. Fingers crossed that when its all back in one piece BOTH the problems will be solved. ------------------
Sierra Session U12
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