Es Magnet Adjustment; Checking Operation Of Mirror Box Block - Pentax 67 II Service Manual

6.29 ES magnet adjustment
1)
Put shutter curtain and mirror base plate (0-Dl) in wound up state.
2) Loosen 1st curtain Mg installing screw, lightly push down core adsorption surfact· in parallel on armature.
adsorption surfac('. aud fasten screw. Whrn pushing down the loose par! (approx. 0.1 mm) of armature shaft,
the gaps on the two shoulders
of
th('. armature should be the same.
3) Check gap between O-D57 and E82 (1st curtain checker lever). (Gap: 0.5 mm - ] .3 mm)
4) Adjust gap between O-D55 and E82 (2nd curtain checker lever) with adjusting screw.
(Gap: 0.5 mm - 1.3 mm)
5) Apply Alon-alpha 501 (red) to root of adjusting screw and fasten screw.
6) Loosen 2nd curtain Mg installing screw, lightly push down core adsorption surface in parallel on am1ature
adsorption surface and fasten screw. When pushing down the loose part (approx. 0.1 mm) of the an11ature shaft,
the gaps on the two shoulders of the amiature should be the same.
?)Check:
CD
Apply the voltage (l.7V) to the magnet so that it adsorbs.
®
Set the wind up state, release the stopper of the mirror and rise-up the mirror.
@
Push O-D57 lightly, and Jet it go slowly. The 1st curtain should be run.
@)
Push O-D55 lightly, and let it go slowly. The 2nd curtain should be run, and mirror should go down.
8) After completing adjustment, apply Three Bond 1401C to 1st and 2nd MG and installing screws x4.
059
057
6.30 Checking operation of mirror box block
f
Jigs and tools] : Rei,rulated voltage power source.
1)
Wind up shutter curtain and mirror box.
2) Solder lead wires to illustrated places
on T331 (shutter magnet relay
P.C.
board).
3)Chcck:
- Mirror-up occurs after feeding to
CD
- ls! curtain runs after power flow is cut to
®
- 2nd curtain nms after power Oow is cut to
@
4) Check
CD, ®
and
@
again with mirror box
placed in reverse position.
(Take care to avoid shm1-circuiting.)
27:340
048
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