NARDINI MASCOTE MS-175E - Safety Coupling

CHANGE GEAR
The
change
gear
allows
the operator to
change
or
invert
threads
of Whitworth,
Metric, Modular
or
Diametral Pitch,
gears
are on data
plate
of the threads-and-feeds
gears
box.
must be
"008"
to .010".(0,1 to 0,2mrn).
the
position
of
the
gears
to obtain
lnstructions
for
mounting the change
After any change
gears,
the backlash
CHANGE GEAR SAFETY
PIN
To
avoid
possible
damage when the machine is used
improperly
or with excessive
loads,
the assembly
includes a safety
pin
(1)
which
breaks
(in
part "A"
)
before the
gears
themselves
are damaged.
SAFETY
COUPLING
A
safety
coupling
is
placed
between
the
threads-and-feeds
gear
box transmisson and the
feeds
shaft"
Its
function
also
is
to avoid
possible
damage caused
by excessive
loads
or
improper
use of the
lathe.
FUNCTION
When
an
excessive
force
bears on the
feeds
shaft, wheel
(4)
yields
and drives coupling
(3)
away
from
piece
(2),
stopping the transmission of force.
When the assembly
is
reset, coupling
(3) join
again, impelled by spring
(4)
and theconnection is
re-established.
An
easier or
more difficult
clamp is
obtained by
loosening
the
leadscrew
(
1
)
and adjusting the ratchet
protector
(5).
For easier
unclamping,
tighten the
ratchet
protector.
After adjustment,
refasten the
leadscrew
(1
).
t_
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