len
'-.J
"'
�
(])
-J
- 31
-
(B-138)
angles
to
the
bar. It should require
3
'00
5
ozs.
to start the LETTERS
and
FIGURES push bars moving.
PLATEN
SHAFT
ADJUSTMENT
The
platen shaft shoul d have
some
en
d
plq,
not more than
.004".
To
adjust, p
o
si
t
i
on the friction assembly on the platen shaft by
mean
s
of its set
screws.
(
Se
e Figure
6413
for l ocation of parts.
)
SINGLE-DOUBLE
L
I
NE FEED DEI'ENT ADJUSTMENT
When the single-double line feed lever is shifted to the
SINGLE and
DOUBLE
line
feed positions, t he hump on the
detent
spring
should
travel equal.l.y
on ei ther
side of the
detent.
(See
Figure
50
f
or
location
of parts.) To
adjust,
po
s
it i
on the detent
by
means
of
i
ts
mounting
s
c
re
w
.
SINGLE
DOUBLE
UNE FEED
DETENT
SPRING
ffi.ESSURE
(
Figure
50)
With the single-double line feed lever in the
SINGLE
line feed
position (up), hook a
4
l b.
scale,
held
in a horizontal posi tion, over the
extension of the lever and pull toward the front. It should require
1-1/4
to
3-1/4
lbs, to m:>ve the lever to the DOUBLE line feed position.
LINE FEED DETENT LEVER
ADJUSTIENT
With the single-double line feed lever
in
the
SINGLE
line feed
position (up), and the line feed bail operated
by
hand, the
line
feed pawl,
when sliding
ott
the rear edge of the single-double line feed lever, should
just miss the edge of a tooth on the ratchet. (See Figure
50
for location of
parts,)
To
adjust, loosen the detent lever eccentric screw nut (Figure
53)
and turn the eccentric screw so as to rotate t
h
e
platen by
means or the detent
lever. Tighten the detent lever eccentric screw nut
and
checlc: the adjustment
for
all
the teeth on the line feed ratchet.
NCYI'l!::
There are two posi tiona of the detent lever eccentric screw which
will
provide correct adjustment.
use the
position which applies the
le
as
t
tension to the detent lever spring and be sure that
the detent
rol ler rests in the bottom of a notch on the detent ratchet.
LINE
FEED
LINK TURNBUCKLE
ADJUSTMENT
(
Figure
50)
With
the single-double line feed lever
in
the
SINGLE
line feed
position, select the
LINE
FEED
c
o
mb
i
nat
i
on
and
rotate the .main shaft until the
line feed push bar is being stripped from the fu nction bail blade. Under this
condition the platen should rotate one line space,
the detent roller should
rest in
the hollow between two ratchet teeth, and there should
be some clear
ance, not
more
t
h
an
.015",
between the line feed pawl
and
th
e
front face of'
a
tooth
on the ratchet. Check
each
tooth on
the
ratchet for this clearance.
When gauging these clearances, the play in
t
h
e
line
feed
mechanism
should be
taken
up
in a
direction
to make
the clearance a
maximum
by pressing
forward
on
the line feed pawl.
To ob tain this requirement, place the typing
unit on its right side and adjus t the length
of
the
line
f
e
e
d
vertica l link
by
m
e
an
s
of its turnbuckle.
