-36-
(B-138)
NCYI'E:
On
typing units which ring the bell on blank, set up the letter T
combination
ani
rotate the
main
shaft untll the printing bail is in
its extreme forward position.
To adjust, add or remove shims between the latch
and
the
function
lever comb.
SIGNAL
BELL
LATCH
BAR
LATCH
ADJUSTMENT (Figure
59A)
With the
main
shaft rotated until the function bail is in its extreme
rear position, there should be a clearance of
.010" to .02011 between
the front
shoulder of the bell latch bar and its latch. When checking this clearance,
the shoulder on the bell reset
bar
should be fully e
n
g
ag
e
d
with the function
. bail blade.
To adjust, position the bell latch bar latch toward the
front
or
rear
by
means of its elongated mounting holes.
SIGNAL
BELL lWOlER
BAC�'TOP ADJUSTMENT (Figure
59A)
With the bell latch bar
in
its latched position, there should be
.0201t to
.040"
clearance between the bell hammer arm extension
and
the bell
operating lever.
To a djust, position the bell
hammer
backstop by means
of
its
elongated mounting holes.
SIGNAL
BELL
OPERATING
LEVER
SPRING TENSION (Figure
59A)
Remove the bell reset bar spring. With
the
rear
shoulder
of the bell
latch bar resting against the bell latch bar latch,
hook
a
4 lb.
scale under
the head ot the bell operating lever screw and pull
p
ar
all
e
l to the
latch bar.
It should require
1-1/4
to
2-1/4
lbs.
to
start the levaz:
100viog.
Replace the bell reset
bar
spring.
SIGNAL
Ba.t RESET BAR SPRING
TmSION (Figure
59B)
Rotate the main shaft until
t
he
function
bail is in i
t
s
extre1�1e
forward position. With the front
shoulder of
the bell latch bar resting against
the latch, hook an
8
oz. sc ale over the bell
reset
bar just i
n front
of'
the
shoulder
ani
pull at right angles to the reset bar.
It should require
.3
to
5
ozs. to start the reset bar roving.
•
BELL
FUNCTION
LEVER
SPRING TENSION (Figure
59A)
Select
any
character and rotate the
main
shaft until the bell function
lever rests against the vane� but is not selected. Hook a
4
lb. scale over the
rear extension of the bell function lever just in front of the lobe that engages
the bell latch bar,
and
pull at right angles to the lever.
It should require
1-3/4
to
2-1/4
lbs. to start the lever moving.
CARRIAGE RETURN LATCH
BAR
LATCH SHIMS ADJUSTKENT
With the letter
0
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 carriage return latch bar
and
the lobe on
the :�.'"ear extension ot the carriage retum .function lever.
When
checking this
en
-J
N
.r.:a
�
-J
N
