Pentax K100D - [Adjust] Positioning 1 St and 2 Nd Mirror

76700 -24/94-
6. 【ADJ】Positioning 1
st
and 2
nd
Mirror
[Required equipment] 1
st
mirror angle (45°) adjusting jig, Mirror angle adjusting jig for 27830,
Mirror positioning scope.
＊Adjustment is performed by turning B58 (2 pcs). The Y-axis (the vertical direction) is adjusted
to a 0 target.
＊Front housing must set mirror down position.
① Positioning 1 st mirror : Put the 1
st
mirror angle (45°) adjusting jig on the camera,
and then adjust the mirror seat so that the adjusting jig touches the mirror without gap.
Tolerance ---- X-axis : ±15’
Y-axis : ±10’
② Positioning 2
nd
mirror : Attach the mirror positioning scope and the
2
nd
mirror angle adjusting jig to the camea, and then adjust the
mirror angle while looking through the eyepiece lens.
Tolerance ---- X-axis : ±0.3mm
Y-axis : ±0.1mm
(Refer to below tolerance for positioning scope)
③ After adjustment is done, apply the supper-glue to both B58.
■ Tolerance for 2
nd
mirror position
(Using with the mirror positioning scope)
1st mirror
B58
2nd mirror
1mm hole
OK OK NG NG
（
Standard
）
Scale
Center of Standard
12
- 2 - 1
2
1
-
1
-
2
12
-
2-1
2
1
-1
-2
NG: 0.8(X) or over
NG: 0.6(Y) or over
：Tolerance of 1 mm hole
（X-axis=±0.6、Y-axis=±0.8）