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Pentax 77420 - Page 41

Pentax 77420
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77420 - 40/107 -
13. [Adjustment] Height of 0-C000
Required equipment: Hexagon wrench 1.5mm, Block gauge for 35mm, Dial gauge comparator, etc.
Specified Adhesive: super X (Clear)
--- Order number: 95901-S133
①[Confirmation] Measure height of the 0-C000 rear plate (3 places) from the mount surface as shown in
the figure.
②[Adjustment] Turn three adjustment screw A31. Target for adjustment is +6.38. (Maximum and
 minimum difference is within 0.01)
You must finish the adjustment with turning A31 tighten direction. (Clockwise direction)
③After adjusting, clean A31and around A31 then apply Super X on screw as shown in figure.
[Caution] Do not touch it until Super X becomes hardened.
④Connect T640 (Plug-in) --- Do not give too much force.
Not disassembled parts
When adjusting
Tolerance (Only for 77420): 51.7551.91 mm 51.84±0.01 mm
Using Block gauge for 35mm
(45.46mm)
6.296.45 mm 6.38±0.01 mm
(6.376.39 mm
)
+6.
+6.376.39
+0.38
③
A31
sample
②
ADJ
Super-X
(Clear)

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