Hi everyone,
being not quite happy with the somewhat excessive resistance my Velbon PH-386 fluid head provided to panning motion, I turned the pan tension adjustment knob towards "decrease", only to find it in my hand.
It had not broken off, but simply unscrewed. However, somehow it seems impossible to screw it back on (or rather in, as it's of a set-screw design).
It has a T-head to interact with the friction brake, and this has to be slotted in from above when the screw is fully in. However, that appears to be entirely impossible as assembly necessarily has to start from the fully out position, in which the T-head blocks itself from moving into the correct position.
I don't have any idea how to fix that, of how it happened that it came apart, or how it has been assembled at the factory. It's a bit of a 3D puzzle ... maybe, based on the attached photograph, you have some helpful idea of what I could try to get the knob installed again?
Many thanks in advance!
Henning
being not quite happy with the somewhat excessive resistance my Velbon PH-386 fluid head provided to panning motion, I turned the pan tension adjustment knob towards "decrease", only to find it in my hand.
It had not broken off, but simply unscrewed. However, somehow it seems impossible to screw it back on (or rather in, as it's of a set-screw design).
It has a T-head to interact with the friction brake, and this has to be slotted in from above when the screw is fully in. However, that appears to be entirely impossible as assembly necessarily has to start from the fully out position, in which the T-head blocks itself from moving into the correct position.
I don't have any idea how to fix that, of how it happened that it came apart, or how it has been assembled at the factory. It's a bit of a 3D puzzle ... maybe, based on the attached photograph, you have some helpful idea of what I could try to get the knob installed again?
Many thanks in advance!
Henning