Olympus X-Tr Manuale di riparazione - Pagina 27
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c.
When left knob is clamped, it becomes too tight abruptly.
And when knob is rotated, it will soon become loosened.
This is called "dull taper".
To solve "dull taper", take the following steps:
Slightly ream bush of left knob, until proper heaviness
is obtained.
7)
Attach rack to dovetail.
8)
Attach block to dovetail, and adjust heaviness in their move-
ment.
a.
When their engagement is
loose and chatter:
In accordance with their
chattering degree, insert
tin foils in a range of
thickness from O.Olmm to
· 0. 05mm between rack and
dovetail until they stop
chattering.
b.
When their engagement is
too tight:
Slightly lap back surface
of rack with emery cloth
to abate tightness of
their engagement but not
to allow any chatter.
*
Emery cloth should be
placed on a flat surface
upon which you supress
rack with even force.
c.
How to check chatter:
Emery Cloth
Holding block and dovetail firmly in your hand, swing
them; you can feel a chatter, if any.
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