Pics can be found here:
https://drive.google.com/drive/folders/ ... sp=sharing
Matt Walters worked on this horn back in June of 2020. Here's the full list of work performed:
- Chem clean and service
- Quiet linkage
- “Tweak” for better response.
- Chem clean and serviced. New bumpers and water key cork.
- Disassembled all linkage and levers. Lubricated and massaged all Minibal ends plus lubricated inside of all lever hinge tubes.
- De-burred internal knuckle to casing joints. Shrunk top bearing joint to remove some back and forth slop. Had to leave bottom bearing joint loose and install the bearing plate 90 degrees off to get the rotor to stop binding in the range of play. Visually aligned the 4th rotor by looking inside the main slide tube.
- Tweaked up the response of the tuba by rebuilding the 4th to main t/s joint and cleaning up some internal burrs.
- Dog leg to top branch was unsoldered. Removed the dog leg. Cleaned all joints and reinstalled
