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- 35-
(B-138)
PAPER GUIDES ADJUSTMENT
(Figure
56A)*
The outer sides of both paper guides should be
.040"
to
.050"
from
the shoulder on their respective ends of the straightener rod. To adjust,
position the guides on the shaft by means of their set screws.
SPACING ESCAP�T
PAY.'L OPmATING ARM
JJ)JUST�'T (Figure
57)
With the
LINE FEED
combination selected
and
the main shaft rotated
until the function lever bail rests on the line feed function lever, there
should be
.o20w
to
.04011
clearance between the rear spacing escapement pawl and
the low part of the spacing escapement ratchet.
To adjust, loosen the spacing
escapement pawl operating arm mounting screws arn position the
arm.
Tighten
the mounting screws.
SPACING ESCAl'EM:I!NT PAWL SPRING TENSION (Figure
57)
Rotate the
main
shaft until the printing
ball
is
in 1
ts
extreme
rear
position.
Hook
a
32
oz.
scale under the
tront
sp
a
ci
ng
escapement
pawl at
the
place where it
rests against the
escapement pawl operating
arm,
ani
pull
verti
cally upward.
It
should
require
10 to
14
ozs. to
start
the
pawl moving.
MARGIN
BELL HAMMER ADJUSTMENT
(Figure
58)
\Vith the bell hammer
arm
resting against the stop post, there should
be
.02011
to
.060"
clearance between the bell
and
the bell hammer.
To
adjust,
loosen the margin bell hammer bracket
munting
screws
and
shift the bracket;
if
this does not give the required cl earance, then bend the bell hanuner
arm
al
ong
its entire length, avoiding a sharp bend at � point.
MARGIN BELL HAJ.lMER SPRING TENSIOll
(Figure
58)
Hook a
32
oz. scale over the bell h
amme
r
arm,
directly below the
spring,
and
pull in
line
with the spring. It should require
10-1/2
to
1.3-1/2
ozs. to start the
ann
mvi.ng
•
.
SIGNAL
BELL H.�
SPRING TENSION (Figure 59A)
With the bell latch bar
in"
its latched position, hook an
8
oz.
scale
over the upper end of the
bell
hammer arm extension am pull at right angles to
the inner straight edge of the extension. It should require
3 to 5
ozs.
to
start the bell hammer moving.
SIGtlAL
BELL LAT
C
H
BAR LATCH
SHillS ADJUSTMENT (Figure 59A)
Set the typing unit on its right- side.
WWi.th
the platen in
the
UNSHIFT
position (down),
the
BELL
combination selected and the
main
shaft rotated until
the printing bail is
in
its extreme forward position, there should be
.004• to
.01011
clearance between the bell latch bar and the lobe on the rear extension
of the
bell
function lever. When checking this clearance, the tront shoulder
of the bell latch bar should be fully latched on its latch.
*
*
*
*
Omitted
when
adjusting sprocket feed printers. See
page
60.
