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Harrison M250 - Page 26

Harrison M250
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20
Cross-slide (Fig.
a1
Wear
on
the
taper
-gib
strip
may be
adjusted
for
by
clockwise
rotation
of
the
slotted
head
screw
on
the
front
face
of
the
cross-slide.
The
procedure
being
to
first slacken
the
similar
screw
at
the
rear
then
re-tighten
this
after
adjustment
to
clamp
the
strip
in its new position.
Top
Slide (Fig. 9)
Take
up
for
wear
on
the
top
slide
strip
is
by
means
of
the
four
(self-locking)
socket
set
screws
in
the
front
face
of
the
top
slide casting.
Cross-slide Nut (Fig.
101
Provisi
on
is
made
for
the
elimination
of
backlash in
the
cross-slide
nut,
the
procedure
for
adjustment
being as follows: -
Release
only
the
rear
pair
of
socket
cap
head
screws in
the
top
face
of
the
cross-slide,
which
allows a spring loaded device
to
automatically
remove backlash. Re-
tighten
cap
head
screws.

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