-
.30
-
(B-1)'8)
To adjust, place the shift-unshitt
link
bracket
in
the
middle
of the
adjustment provided by the elongated mounting holes and tighten the
mounting
screws. Place the typing unit on its right side
and
rotate the main shaft
until the functi on bail is
1n
its
extreme
forward position. Adjust the
turn
buckle on the shitt-unshift
link
so
as to equalize (within
.010")
the clearance
between the functi on bail blade and the shoulder on the
UNSHIFT
push
bar when
the platen is in the
FIGURES
position, with the clearance between the function
bail blade
and
the shoulder on the SHIFT push bar when the platen is
in the
LE'l"l'ERS
position.
Then
select the UNSHIFT and SHIFT combinations alternatel,y
and
check f or the specified clearances between the shirt-unshift stop post
ani
the UNSHIFT
and
SHIFT stop screws.
If either of these clearances is greater
than
.02511,
move the shift-unshitt link bracket toward the front of the unit;
it
less than
.010",
move it toward the rear,
after
which a slight readjustment
of the shift-unshift link turnbuckle
.mq
be necessary to
bring
both clearances
within the specified limits. Replace the shift-unshift detent
spring ao:i
platen
balaJ)ce spring.
·
(See Figures
50
and
51
for location of parts.)
·
PLATEN
BALANCE
SPRING TPNSION (Figure
53)
·
With the platen in the UNSHIFT position, unhook the platen balance
spring from the platen unit side frame and hook a
12
lb. scale
in
the spring
eye.
It should require
.3-1/2
to
5
lba. to pull the spring to position length.
Replace the spring.
SHIF�UNSHIFT DETENT ADJUSTMENT
When the platen is shifted to the SHIFT and UNSHIFT positions, the
platen detent roller should ride equally on either side of the detent. To
adjust, position the shitt-unshift detent by means of ita eccentric shoulder
screw. (See Figure
50
for location of parts. )
SHIFT-tJN�IFT
DETENT
SIRING TENSION {Figure
50)
Hook a
25
lb. scale over the extension on the sh:ift-unshift detent
and
pull in
line
with the spring.
It should require
from
10
t"
14
lbs.
to
start the. det.ent JDOving.
SI.ITH
VANE
EXTENSION ADJUSTMENT
NOTE:
This adjustment applies only to printers equipped with the old style
sixth vane extension {a flat spring formed
from
spring steel).
Unhook the sixth vane detent spring from the spring plate.
When
the platen is shift�d to the SHIFT and UNSHIFT positions, the sixth
vane
should
tra vel equall,y on either side of the detent in the W notch of the locking
func
tion lever. Adjust by bending the sixth vane extension. After bending the
extension, the UNSHIFT push bar should not bini on the extension
in
either the
UNSHIFT or SHIFT positions. (See Figures
24
and
2h
tor location of parts.)
UNSHIFT
(LETTmS)
AND SHIFT {F IGURES) RJSH
BARS
SPRING TENSIONS {Figure
5U)
Select
an;y
character
and
rotate the main shaft until the printing
bail is in its extreme forward position. Place the push
end
of an
8
o z. scale
directly beneath the notch on the push bar
and
push horizontal� at right
m
-.J
N
�
w
.....
m
m
