Cam Shaft hangs on left cycle
#1
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Join Date: Aug 2010
Location: Kansas City, Missouri
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Cam Shaft hangs on left cycle
I have a brother that I have been tinkering with for about 3 months. My OSMG has also been working on it. We finally got the cam shaft to turn fairly well except when it gets to a place where it has to move to the left it hangs up. I have oiled it repeatedly on the cam shaft but I was wondering if I need to grease the part that has a gear to it. Also it appears that the cam selection knob is not lined up with the stitches but of course I can't tell that for sure because I can't get the cam shaft to work properly. Maybe part of the problem may be because the cam selection knob is not lined up properly. I just can't figure out what else to do. Maybe someone on the board has some info for me.
#2
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Join Date: Feb 2012
Posts: 8,091
Gears get grease, especially metal gears.
I would use Tri-Flow oil and concentrate on the ZZ linkage to the left of the cam follower. Any thing that hangs up in the linkage will hang up the machine.
It also needs much more cleaning inside. There lots of old varnished oil on every thing. That alone will cause the mechanism to jam up. Especially the ZZ parts.
Joe
I would use Tri-Flow oil and concentrate on the ZZ linkage to the left of the cam follower. Any thing that hangs up in the linkage will hang up the machine.
It also needs much more cleaning inside. There lots of old varnished oil on every thing. That alone will cause the mechanism to jam up. Especially the ZZ parts.
Joe
#4
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Join Date: Mar 2011
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Yup Joe and Candace are right - clean it up some more - the zig zag linkage. I have a Pfaff too months to free up. Something in the linkage was stuck. I cleaned everything up as best as I could get it. It still wanted to not return a zig zag. Finally I used Tri-flow and set it under the bench. Every once in a while I used more T-F and turned the machine on a different side so the T-F would flow into where ever it was that wasn't moving. I just kept turning it over. I would turn the knob once in a while to see what it was doing - hit it with some T-F and one day it worked. I don't really know what exactly was stuck - but it was varnished up pretty good like yours. It can have some stuck inside somewhere you can't see it. The T-F works quickly most of the time, in that case it was very slow. Now the machine has a different problem...
#7
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Join Date: Aug 2013
Location: Springfield Oregon
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if it hadn't been worked on (or over) by the same guy who put the grease in the 201-2 brushes, who was also using the service manual and had taken a lot of trial and error notes... I'm not so sure its oil any more...
#8
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Join Date: Mar 2011
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LOL I think I like to see an honest to gosh beater rather than one somebody tried to work on...
#10
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Join Date: Mar 2011
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I shouldn't have said beater... NOT around HERE
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