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Post by ChrisJ on Aug 6, 2016 6:51:27 GMT
I think I was looking at it backwards and remembering wrong.
Full cold fully extends the spring moving the collar all the way to the front of the control? I think my issue was the machine never shutting off as if that spring couldn't open the contacts no matter how much the bellows contracted. Problem is I can't see inside the control and I didn't want to damage anything. I just remember trying to cal the knob colder felt like there was no resistance to turning and the thermostat didn't behave right.
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Post by coldspaces on Aug 16, 2016 2:15:44 GMT
Here we see the end where the on/off/defrost knob is. A metal retainer (red arrow) keeps the knob all the way in place. The bottom ends of the retainer (red circle) must go into the slot (yellow arrow) I had to remove the retainer to get the knob to move over and let everything else come out. The defrost cam on the knob is apparently crimped at it's ends (blue circles) just enough to keep it from coming off easy. I did not want to risk breaking the knob so I left the cam alone. The knob will move out of the way enough with the cam on the knob. The green arrow shows the overload heater surrounding the solder pot.  Here I have the overload heater removed, you can clearly see the solder pot (red arrow) The brass bar (blue arrow) goes all the way out of the control and the other end is one of the prongs for the wiring plug as you can see in the next pic. The piece of the arm (yellow arrow) can be seen meshing (green circle) with the teeth of the solder pot. There is also two mica washers (purple arrow) setting on the solder pot, be careful I didn't see them at first and almost lost them.  Here the moving contact arm is out.  This screw must be removed to get the stationary contact out.  Pic of the moving contact.  |
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Post by coldspaces on Aug 16, 2016 2:26:47 GMT
One more lever too go.  Here is the stationary contact and prong assembly removed.  And the last piece is out that I would try too remove. I am not sure how the brass posts and the solder pot are fastened to the case,could be molded in or screwed into threaded inserts for all I know but I would not try to remove them unless the are damaged.  Couple of pics of the empty case.   |
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Post by Iceman52 on Aug 31, 2016 12:41:16 GMT
Interesting project. Have you found anything really wrong with it or do you just think it is out of adjustment. Good work
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Post by coldspaces on Aug 31, 2016 13:17:41 GMT
Interesting project. Have you found anything really wrong with it or do you just think it is out of adjustment. Good work It was a working control on a machine with a bad float. I took it apart just so we all could learn and save others like it. |
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Post by cablehack on Aug 31, 2016 23:34:38 GMT
It was a working control on a machine with a bad float. I took it apart just so we all could learn and save others like it. Will it be going back together again & a cap tube conversion done? |
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Post by dumasbeef on Sept 1, 2016 1:30:03 GMT
This is great stuff. Thank you, coldspaces, for sharing.
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Post by coldspaces on Sept 1, 2016 4:32:42 GMT
It was a working control on a machine with a bad float. I took it apart just so we all could learn and save others like it. Will it be going back together again & a cap tube conversion done? It is all back to together except for the bellows assembly is still off and clamped. This is the machine I experimented with a TXV on. We know the cap tube works and I have too many to run at once so it was just in storage, its a TXV guinea pig now. I figured might as well use it's control for the tear down I always wanted to do on a two knob control. |
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Post by coldspaces on Sept 1, 2016 4:35:07 GMT
This is great stuff. Thank you, coldspaces, for sharing. You are welcome! I have pics of the reassembly but haven't found time to get them resized, posted and explained. |
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Post by elec573 on Nov 23, 2016 5:25:22 GMT
Great post hope I never have to take one apart! Thanks for sharing!
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Post by ChrisJ on Nov 24, 2016 0:25:12 GMT
The thing that's nice about Gill is there are guys that can take something apart and then throw it out. There are guys that can take something apart, look at it, maybe repair it and put it back together.
But, taking it apart, fixing it and documenting all of it is a huge pain and requires a lot of patience.
Kudos for that and we all appreciate it.
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Post by elec573 on Nov 24, 2016 3:41:27 GMT
Wow. Chris said it best and I we'll definitely second it !!! Have you ever thought about taking on an apprentice?  |
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Post by ckfan on Nov 24, 2016 21:43:07 GMT
If he does take on an apprentice I will be first in line!
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