en
-..J
N
�
w
V1
- 9-
(B-138)
hook
a
4
lb. scale in the corner at the left end of the ribbon reverse bail
and rmll horizontally toward the front of the carriage.
It should require
2
to
4
lbs. to just start the ribbon reverse bail mo ving.
Measure the right
spring compression at the right end of the ribbon reverse bail for this
requirement in the same manner.
TY1'!! BAR
BACKSTOP ADJUSTMENT
With th
e pull bar bail in its extreme rear position, raise each type
bar manually to within approximately
1/4"
of the type bar guide.
Then, when
released, the type bar, impelled
by
the tension of the pull bar spring, should
return to
its
normal position on the backstop.
The and type bars should rest
against
the leather backstop along its en tire width.
It is permissible,
how
ever,
to allow
a clearance
of
no t more
than .010"
between th e tront edge
of
the backstop and the
end
t
yp
e
bars. To
adjust,
set the up and down position
of the backstop by means of its
elongated mounting holas, at the lowest
position permitted to meet this requirement.
(See Figure
7
for location of
parts.)
RIBBON
SHIFT LEVER
BRACKET ADJUSTM!NT
(Figures 12 and 13)
The ribbon oscillator lever Ahould move freely in its slot when its
spring is unhooked and the ribbon carrier is approximately centrally located
with respect to the type bar guide'.
To
adjust, position the ri bbon shift
lever b racket by means of its enlarged mounting holas.
Replace the ribbo n
oscillator lever
spring.
RIBBON OSCILLATOR L'!WER SPRING .TORSION (!'igure 12)
See Note
(A)
,
With the ribbon shift lever spring relJloved, hook an
S
oz. scale o ver
the lower end of the ribbon oscillator lever and pull horizontally toward the
rear of the type bar carriage.
It should req uire 2·1/2. to 3-1/2 ozs. to start
the oscillator lever moving,
Replace the ribbon shift lever spring.
RI'BBON SHIFT LEVER
SPRING TENSION
(J'igure 12) See Note
(A)
With the ribbon oscillator lever spring unhooked tram the oscillAtor
leve�, apply the �ush end ot a 12 lb. scale, held in
a
vertical position, to
the ribbon shift lever at the place where the ribbon oscillator lever spring is
mounted.
It should require l to 1-3/4 lbA. to start the shift lever moving.
Replace the ribbon oscillator lever spring.
MARGm BELL PAWL
SPRING TENSION (!'igure 13) See Note
(A)
Hook
an
s
oz. scale, held in
a
horizontal position, over the margin
hell pawl, just above the stop, and pull in line with the �ring.
It should
reouire l/2 to l-l/2 ozs. to s tart the pawl moTing,
RIBBON
LOOimUT
BAR (NON•ADJ'USTABLE)
IETENT
SPRING
PRESSYR!
(J'isure 14)
NOTE:
This adjustment epplies ,nly to those typing units equipped with the
standard (non-adjustable) r ibbon loCkout bar
•
•
•
•
(A)
'lbese requirements
should
be checked with the type
bcr
carriage
removed.
