Olympus X-Tr Repair Manual - Page 28
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4.
Heavy Rotation of Focusing Knob
Unadjustable
heaviness
caused by
worn-out
bush in knob
1)
2)
3)
4)
Disengage block and dovetail.
Remove left knob.
Remove worn-out bush.
Put replacement bush in position.
Apply a small amount of
instantaneous adhesive
into recess of knob,
place new bush, on which
a drive stick is placed
(see figure, right).
Hammer it to drive bush
into position.
5)
Screw left knob onto
pinion shaft and
check heaviness in its
rotation.
S.
Heavy Rotation of Helicoid Ring
Grease
1)
Remove helicoid unit from
coagulated
porro-prism housing.
on helicoid
2)
Remove setscrews from
ring
scale ring.
3)
Unscrew scale ring from
helicoid ring A.
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