2008Arms forum
G-50 arm lift knob became loose and non-functional during operation
18 years old. Gear and prices may have changed since.
What the thread found
- A loud popping sound during weight transfer to a C-stand preceded the failure of a lift knob on a G-50 arm
- The lift knob slipped out of its threading and became loose, causing the arm to hold weight at an unexpectedly high level
- Attempting to re-thread a loose lift knob with a wrench did not restore proper operation
Depends on
- The exact cause of the knob slipping was not determined in the thread
- It is unclear what specific fix was applied in-house
- Only one instance is reported