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Q
Checking unwinding
force
1
Fit the supply flange and takeup flange and load
the punch with a full coil of tape.
Loosen
the surge takeup arm
from the retainer
magnet
and check as shown
in Fig. that the force
exerted
for unwinding
the tape does
not exceed
0.49N (50gf).
Explanation: This check
is important
to assure
correct inter-row
spacing.
If the pulling
force
is too high the reason
can
be
a.
binding at the supply
flange hub
b. warped
supply
flange or
c. binding guide rollers.
the supply
flange or replace
it or c.
clean
the
guide roller shafts
and their
holes.
Checking
reversing
buffer arm
Check
that
the torque
exerted
by, the reversing
buffer
arm is 1.76 ~ 0.20N
(180 = 20gf} when
the guide
rollers
are all aligned.
Adj
but
shaft hole and the shaft.
Hold special tool VII as shown
in Fig.
Check that the rubber-coated
roller
is not
caught
by the catch when the reversing
buffer
arm
is moved
out against
stop A on the special
tool.
Now move the tool in the direction
shown by the
arrow,
move the reversing
buffer arm
against
stop B and check that
the roller
is picked
up
and that there
is ample engagement
between
the
ratchet
wheel
and catch.
Adjustment:
Engagement
can be increased
or de-
creasea by carefully bending pin C,
Checking
adjustment
of spring mounted
tape guide
Check
that the spring-mounted
tape guide exerts
a max
force of 0.25N
(25gf) on the tape.
Adjustment:
Unscrew
and
remove
the spring-moun-
ted tape guide and straighten
it. When replacing
with tool XVII,
adjust vertical
position
of
spring-mounted
tape guide,
Checking
tape feed
Load the punch with tape.
usin
Run the punch and check that the tape does
not strike the edge of the takeup
flange.
Adjustment:
Straighten
the takeup
flange or
replace it.
Referenskant
Reference edge
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