Mamiya 6: Loose Wind Lever and Glue Residue
Originally posted on Instagram. Notes from the repair bench, kept here as a searchable archive. View the original on Instagram
Servicing a Mamiya 6 and lenses. There were a few issues to deal with, most obvious was the wind lever that was loose. After removing the rubber covering on the wind lever (a bit difficult as it had been improperly glued in place) I discovered that the wind lever attaching screw was loose. This was caused by the last person that serviced this camera - the rubber covering, tension washer and attaching screw were covered in glue residue (photo three). And the glue used was the so called “super glue” type (cyanoacrylate glue). What had happened was the large amount of glue had cemented the tension washer and attaching screw together so that whenever the wind lever was put into the rest position against the body, it would turn the attaching screw clockwise and loosen it (the attaching screw on the Mamiya 6/7 is a left hand thread).
If you are going to be doing repairs on cameras, there really is no place for cyanoacrylate glue. Please use Pliobond and Hypo Cement as I have pictured.
Also of interest, you can see in photo five how Mamiya used a silver frame finder reflecting plate in the Mamiya 6. After the first few months of production of the similar Mamiya 7 rangefinder, that plate was shifted to a gold color for better reflectivity and a reflecting baffle was added.
