Hohner Verdi 1V fault

[boxplayer4000]

Hohner Verdi 1V
This particular model has coupler slides built into the reed block bases. The slide is pulled
back and forward by a 1.5mm rod/lever passing through a slot in the end of the slide.
The 1.5mm lever in turn, is fitted through a 5mm dia. rod which is rotated from a wrist lever on the
edge of the keyboard.
The problem is the 1.5mm rod/lever has broken off where it passes into the 5mm rod. 
A  remaining 1.5mm lever, in good order, appears to pass right through the 5mm rod and
had its top end riveted. There is no sign of solder, brazing etc.
Is it possible the 1.5mm rod has been threaded?
Has anybody else out there encountered this problem please? 

 

[Dingo40]

Boxplayer,

On googling " Hohner Verdi iv accordion ", I was surprised to find the designation referred to a variety of incarnations stretching from pre-wwii into the 1960s, some with, others without, a side lever, all designated  "Verdi iv"

What vintage is yours ? :huh:

 

[oldbayan]

Not sure I understand your question! I have a Verdi III that I used for parts, with one set of sliders, there is a 1.5mm rod that indeed goes through a bigger rod, but it does not look it has ever been threaded.

 

[Sebastian Bravo]

I have a Hohner Atlantic IIIP that presents a soldering work in that part (It's not the exact same mechanism, the Atlantic has it on the outside, but works the same way)
you should try to disassembly the mechanism and solder the broken part. then scap the excess of solder and test if it moves freely.

 

[oldbayan]

I have a Hohner Atlantic IIIP that presents a soldering work in that part (It's not the exact same mechanism, the Atlantic has it on the outside, but works the same way)
you should try to disassembly the mechanism and solder the broken part. then scap the excess of solder and test if it moves freely.

Why not just replace the broken rod with one long enough to go through the bigger one?

 

[boxplayer4000]

Thanks to all who have given this problem some thought.
Dingo:   My Verdi is 1938-40. 1939 I think.  Repairs and playing work have virtually disappeared since the start of the virus pandemic and to keep occupied I decided to overhaul the Verdi which was really intended for spare parts. It’s commercial suicide of course but so far the reeds have responded really well to overhaul and the musette I’ve set has surprised me given the age of the reeds as its very bright and clean. 
Sebastion Bravo: I don’t have the broken part to solder. I doubt soldering would be strong enough
in this situation. 
Oldbayan: There’s only 2 bass sliders in my Verdi1V. It only has two tones ie. MMM or LMMM. The mechanism design is common in many Hohners and maybe I need to identify which model(s) are the same as mine and try and locate a spare. If I cant find a spare part I will need to replace the broken 1.5mm rod. I raised
this thread in the hope that somebody had already done the job and could tell me what method
is used to secure the 1.5mm rod to the larger 5mm one. ie. threaded, shouldered/riveted etc. 

 

[Dingo40]

Dingo:   My Verdi is 1938-40. 1939 I think.

Boxplayer,
I thought as much: the later ones have no side lever.

Regarding the repair, what about brazing ? :huh:

See here:

https://en.wikipedia.org/wiki/Brazing

 

[boxplayer4000]

Dingo40:
Thanks for your continued interest.
I would be cautious about brazing because I'm not sure of the type of metal involved. 
However I have 'spare' parts which I believe might be the same metal and could be experimented on.
Regardless of the metal type the heat required in brazing would likely soften it.

 

[Dingo40]

Boxplayer 

"Regardless of the metal type the heat required in brazing would likely soften it."

Quite right!

But, quenching while hot would reharden it.

Still, it's all a bit risky  :-/

 

[oldbayan]

(...) somebody had already done the job and could tell me what method
is used to secure the 1.5mm rod to the larger 5mm one. ie. threaded, shouldered/riveted etc. 

Super Glue

 

[boxplayer4000]

Using a 2mm rod salvaged from a Hohner bass I reduced one end to 1.5mm before inserting
it through the 5mm rod and riveting it.   Fingers crossed.

 

[boxplayer4000]

For anyone interested in the Verd1V coupler mechanism this is a photo of it, reed blocks removed, with the levers reaching down to the coupler slides.
The new one is the one on the right.