Teletype MODEL 15, Руководство пользователя

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-4-
(B-1.38)
IN ORDER TO CHECK THE Ti'/0
FOLLO�JING REQUIREMENTS,
THE
TYPE
BAR SEGMmT
ASSEMBLY
SHOULD BE REMOVED
AS FOLLOWS:
Re.roove the tl'J)e bar backstop (Figure
7),
unhook the ribbon carrier
from the ribbon oscillator lever (Figure
12), ani
remove the type bar segment
munting screws
3) .
Hold the pull bars out of engagenent with the code
bar mounting plate an aid, use a piece of string or wire under the pull
bars),
and
slide the assemb� forward.
PULL BAR SHUNG TENSION (Figure
3)
See Notes
(A)
and (B)
With
any
spring unhooked from its pull bar, hook an
8
oz. scale
in
the spring erye
and
pull vertically. It should require
2-1/2 to 3-1/2
ozs.
to
pull the spring
to
its position length. Replace the spring.
RIBBON FEED PAWL SPRING TENSION (Figure
4)
See Notes
(A)
and
(B)
With the pull bar bail in its extreme rear position
and
the carriage
held in its normal position, unhook the ribbon feed pawl ·spring from its post.
With
an
8
oz. scale held
in
a ho rizontal position and hooked in the spring eye,
it should require
2-1/4
to
3-1/4
ozs. to pull the spring
to
its position length.
Replace spring.
RIPLACE
THE TYPE BAR SIG.MEN'l'
ASSEMBLY,
THE TYPE BAR
BACKSTOP, AND THE RIBBON
CARRIER.
.
NOTE:
Care should be taken to locate the ribbon lockout oar
and
detent
spring (Figure
l5),
and
the ribbon oscillator lever (Figure
13) in
their
respective slots.
PULL BAR GUIDE ADJUSTMENT
(Figure
S)
With the pull
bar
bail in its extreme rear position, mve the code
bars to the right. Then mve the pull bar bail opposite the pull bar hwups.
There should be
.008"
to
.020•
clearance between the humps on
all
pull bars
(except the blank pull bar)
and
the
pull bar bill. With the code bars moved
to
the lett position, there should be a like clearance between the blank pull
bar
hump
and
the pull
bar
bail.
NOTE: When checking this adjustment, all the pla;r of the pull bar
bail
should be taken
up in
a direction
to
make the clearance a
minimum
.
To
adjust, rEJno.ve the bell crank
mountiag
pJ ate assembly (Figure
16)
from
the type bar carriage assemb�, being careful oot
to
bend the bell crank
retainers. Position the pull bar guide
by
means of its elongated oounting
holes to secure the specified clearance.
*
'J
*
(A)
These requiranents should be checked with the- type bar carriage
removed.
{B) These requirements should be checked with the cype bar segment
assembl3" removed from the type
bar
carriage.
en
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