Nikon D70 VBA10401 - Angle adjustment of Main mirror and sub-mirror; Main mirror 45° Inspection and Adjustment; Sub-mirror 47.75° Inspection and Adjustment

VBA10401-R.3623.A
- Ａ13 ･ -
Angle adjustment of Main mirror and sub-mirror
・
Before and after the adjustment, check the accuracy by moving the main mirror up- and downwards a few
times.
・
Check for the up-down deviation. In case the deviation is out of standard, make an adjustment by turning the
eccentric pin for the sub-mirror with Hexagonal wrench.
・
In case the deviations of up-down and left-right are out of standard, the front plate unit or mirror unit is
regarded as malfunctioning.
・
In case check or adjust only front body, check again after attach the front body to the rear body.
* Standard:
Main mirror Sub-mirror
Left-right
deviation
±30’ or less
＿＿
Up-down
deviation
±10’ +15’
～
-50'
Distortion
8’or less 8’or less
Up-down
Left-right
Reference
line
Width of line indicates
deviation.
*Tools required:
①
Collimator (J19002)
②
Sub-Mirror 45 deg. inspection tool
（
J18324
）
③
Hexagonal wrench
①
Collimator (J19002)
②
Reection mirror (J18362
）
③
Optical parallel (J18037
）
④
Hexagonal wrench
1.Main mirror 45°Inspection and Adjustment
2. Sub-mirror 47.75° Inspection and Adjustment
J18037
J18362
Main mirror
Eccentric pin for
the main mirror
Collimator
Bayonet
Sub-mirror
Eccentric pin
for the sub-
mirror
Collimator
J18324
Bayonet
* Note: