Excess play between camstack gear and worm gear. New gear sits ready to install.
Bernette 334D looper drive gear
Bernina 730 camstack gear
Pfaff 788 main shaft pulled out to remove seized upper looper drive.
Pfaff 788 upper looper drive seized
Upper looper eccentric removed and polished. Composite link carefully sanded to improve clearances.
Bernina 830 buttonhole dial
Buttonhole dial very difficult to turn. Removed the assembly, punched out dial shaft, cleaned, lubed, reassembled.
Singer Athena 2000
Rubber flaking off of feed dogs. Bobbin doesn't wind. Replaced feed dogs with new all metal ones. Replaced bobbin winder lift cam.
