Mike Lee told me how to do this and there have been pictures here and there. I did two of these tonight so I figured I would take pics and document.
First knock out the roll pin holding the control bolt in place.![image.jpg image.jpg](https://cdn.imagearchive.com/arboristsite/data/attachments/95/95739-d56e4c7d3b2971d6935888852cdbbdae.jpg)
After the pin is out latch onto the bolt and remove, it can be a bit of a bear but it will come.![image.jpg image.jpg](https://cdn.imagearchive.com/arboristsite/data/attachments/95/95740-fcc2b5928ef97b5e73b725a887021809.jpg)
Remove the bolt, piston with spring and washers and this is what you have.![image.jpg image.jpg](https://cdn.imagearchive.com/arboristsite/data/attachments/95/95742-c93471640482fb1196c3c8afae610623.jpg)
Once you have the bolt out its clear how the piston rides back and forth against the concentric cam of the bolt. I remove roughly 1mm from each lobe of the cam. I used my foredom with a few discs stacked up. On the left is an unmodified bolt and on the right one that is ready.![image.jpg image.jpg](https://cdn.imagearchive.com/arboristsite/data/attachments/95/95748-c74a24020585c6e71d8437a6f72026df.jpg)
I also take 1mm out of the pocket on the piston.![image.jpg image.jpg](https://cdn.imagearchive.com/arboristsite/data/attachments/95/95750-07117d84c018bb7b6c856f5f5961db64.jpg)
First knock out the roll pin holding the control bolt in place.
![image.jpg image.jpg](https://cdn.imagearchive.com/arboristsite/data/attachments/95/95739-d56e4c7d3b2971d6935888852cdbbdae.jpg)
After the pin is out latch onto the bolt and remove, it can be a bit of a bear but it will come.
![image.jpg image.jpg](https://cdn.imagearchive.com/arboristsite/data/attachments/95/95740-fcc2b5928ef97b5e73b725a887021809.jpg)
Remove the bolt, piston with spring and washers and this is what you have.
![image.jpg image.jpg](https://cdn.imagearchive.com/arboristsite/data/attachments/95/95742-c93471640482fb1196c3c8afae610623.jpg)
Once you have the bolt out its clear how the piston rides back and forth against the concentric cam of the bolt. I remove roughly 1mm from each lobe of the cam. I used my foredom with a few discs stacked up. On the left is an unmodified bolt and on the right one that is ready.
![image.jpg image.jpg](https://cdn.imagearchive.com/arboristsite/data/attachments/95/95748-c74a24020585c6e71d8437a6f72026df.jpg)
I also take 1mm out of the pocket on the piston.
![image.jpg image.jpg](https://cdn.imagearchive.com/arboristsite/data/attachments/95/95750-07117d84c018bb7b6c856f5f5961db64.jpg)