Given the amount of disassembly here, it looks like you will need to tension the springs: be very careful doing this, because the springs are extremely powerful. Hopefully, you will have gotten this from the service manual.
Given the amount of disassembly here, it looks like you will need to tension the springs: be very careful doing this, because the springs are extremely powerful. Hopefully, you will have gotten this from the service manual.
Luis, please try that interflon lubrication... first it removes the degradated pre-existing lubricant, I should have video showing how I move the 138 table up/down with a single finger, but anyway see how my Norma moves (the shift movement) with a 2kg lens, not disassembled to remove dirt, and still fine several year later.
https://www.flickr.com/photos/125592...5/47092537484/
Other high tech lubricants may do the same, but they not easy to find, many sold as high tech aren't.
I'm with Pere here. In normal operation, the tension on the wire that connects the baseboard arm with the spring assembly and the clamped sleeve of the base column is controlled/released by pressing the foot pedal. While pressing down the foot pedal, you should therefore be able to move away the sleeve from the arm. This will possibly require some effort and the help of a second person. If you have the impression that activating the foot pedal does not release the tension on the wire properly, first check would be if there is too much slack in the bowden cable, and follow the instructions in the service manual p.18 for retensioning the bowden cable of the foot pedal.
In my understanding (I may be wrong) retensioning the column spring should only be necessary when the spring mechanism has been disassembled and I cannot (yet) see that this has been the case here.
Last edited by mnemosyne; 22-Jun-2020 at 13:05.
I have help coming this weekend - I couldn't manage to get the sleeve onto the column alone - this is quite the project *g*
Jan
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