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Nikon VBA23001 - Critical mechanical adjustments

Nikon VBA23001
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VBA23001-R.3762.A
- A21 D90 -
 
Height adjustment of AF coupling shaft
#122
A/M change cam
#652
Adhesive: Screwlock
Set the A/M change cam (#122) to AF side.
[In this state, the coupling shaft (#185) is
protruded from the bayonet surface.]
Adjust the height of the coupling shaft (#185)
with the screw (#652) to become "1.7±0.15mm".
After the adjustment, secure the screw (#652)
with the screwlock.
 
Height adjustment of Aperture lever
 
Measure the height of the aperture lever with the tool (J18004).
In case the result does not meet the standard, bend the red circled
area for adjustment.
 
Be careful NOT to bend the inside of the lever.
  
3.4±0.1mm
 
#185
Bayonet
1.7±0.15mm
Aperture lever
INC

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