NARDINI MASCOTE MS-175E - Page 24

THREAD CUTING INDICATOR DIAL
(leadscrew
4 TPI)
This
assembly shows the clamp
point
of
half-nut
so that
the starting
point
of each of thedifferent
pitch
sizes
is
coincident
with
that of the f
irst
one.
The
dial
indicator is
divided into four numbered
parts
(1,2,3
and
4).
The
example below shows how to use
the dial
-
PiTCH
EXAMPLE
CLAMP POINT
Muttiptesof 4
4-8-
12-16-20-24-28-...
The half nutmay beengaged at
any
point
without using the dial.
Even
pair pitches
4
-6
8-
10-12
-
14
-
16
-.
. . At
any
number
on dial.
Odd
pairpitches
5-7
-
9-11 13- 15
-17
-...
Attwoopposednumbers, 1-3or2-4
Half
pitches
4.112"
5.112"
6.112"
. . .
At any
number.
Always use the same
Ouarter
pitches
4.314"
-5.314"
6.314"
-
. . . Do not unclamp the half nut screw
lf
the
thread is Metric, lVlodule
or
Diametral Pltch,
the
half-nut must remain
engaged
through the
operation
(until
the end
of
the
thread).
I
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6@nr;
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