Olympus X-Tr Repair Manual - Page 26
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b.
Old type kriob and pinion:
Right knob has a tapered
hole, and right stem of
pinion is tapered.
Check pinion inserted into knob:
Left Knob
In case pinion head does not come out of knob, ream knob
with taper reamer slightly, so that pinion head flushes
knob surface, then clamp it with nut.
6)
Insert pinion into metal part, and
screw it into knob and then adjust
knobs as follows:
a.
Although left knob is tightly
clamped, focusing knobs
rotate lightly, or they
chatter in axial direction;
this is because that taper
is too sharp.
Left
Right
b.
Slightly ream left knob with reamer until knobs can be
properly clamped.
To clamp knobs properly:
a) Hold both knobs in your hands, and when they are slightly
clamped, knobs have no chatter in axial direction, but
rotate smoothly.
This is because left knob is effectively
tapered, and,
b) Hold both knobs in your hands, and when they are forcibly
clamped, they rotate heavily.
c) In short, knobs should be clamped, heavily or lightly as
desired.
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