Konica T3n shutter pre-fire

[blee1996]

Issues

• The shutter fires during the film advance and shutter cocking
• It happens to some lenses, which has stronger resistance on the aperture control tab
• When no lens is mounted, this issue does not exist.

Diagnosis

• Weak spring, dry lubricant on the aperture control/actuation ring on the lens mount

Solution

• Clean the black aperture control/actuation ring
• Add tiny drop of oil to the two shining silver prongs, and let the oil work through the back side of black ring

Results:

• Problem solved!
• You can feel the film advance and shutter cocking to be lighter resistance and smoother

Reference:

https://forum.mflenses.com/konica-autoreflex-t3-repair-guide-t76596.html

 

[loccdor]

Good job fixing it.