- 45-
(B-1.38)
and
immediately release it. The stop lever plate should just latch the upper
contact lever (on bases equipped with send-receive-break mechanism having two
lower contacts the safety pawl sho&ld latch the operating lever),
and
there
should not be roore than
.00211
clearance between the stop lever plate and the
upper contact lever (or'between the safety pawl
and
the operating lever on
bases equipped with send-receive-break mechanism having two lower contacts).
Tb
adjust, set the height of the reset lever downstop screw.
LEFT MARGIN ADJUSTING SCREW' ADJU6'Tl£Elfr
(Figure 60)*
The left edge of the letter
M
should print 7/8" (plus or
minus
1/16")
from the left edge of the platen when used as the first character in lines ot
72 character length. When lines of 76 character length are required, the left
edge of the letter
M
should print 11/1611 (plus or minus 1/1611) from the left
edge of the platen.
To
adjust, turn the left margin adjusting screw inward
and lock the carriage
in
place
b,y
operating the dashpot lever so that the
carriage
will be
in a po$it�on to print the letter
M
the required distance
from the lett edge of the platen as specified in the foregoing paragraph.
Make
sure that the carriage clutch members are fully engaged. Then reposition the
adjusting screw
so
that, when the lock nut is slightly tightened so as to take
up
the erd. play in the threads
and
a horizontal pull of 8 lbs. is exerted on
the dashpot lever applied with a 12 lb. scale at right angles to the curved
surface 1/3211 behind the margin adjusting screw, there is a slight clearance
(not more than .002") between the end of the screw
and
the dashpot lever.
Tum
the left
margin
adjusting screw l/6th turn
in
a direction to eliminate this
clearance
and
tighten the lock nut.
RIGHT lfA.RGIN ADJUSTING SCRD' ADJUSTMENT
(Figure 61)
The printer should normally print seventy-two characters on a line
before spacing is blocked
by
the spacing stop pawl. To adjust, retum the
carriage to the left end of the line
and
back off the right
margin
adjusting
screw. Then, with the right margin adjusting screw
arm
in engagement with its
detent, space the carriage one less space than the number of characters desired
per line; that is, seventy-one spaces for normal lines of seventy-two charac
ters. (The carriage should then be in position to print the last character for
the desired length of line.) Adjust the stop screw so that the spacing stop
lever is moved within .015"
to
.03011 from a projection on the spacing stop
sleeve.
RIBBON OSCILLATOR LEVER ADJUSTMmT
With the ribbon
lockout
bar in its WlDperated position (pulled out
ward toward the right), the ribbon should fully cover
art¥
character as it is
being printed
and
the top edge of the ribbon should not be above the bottom
edge of the printed character when the printing has been completed
and
the
main
shaft clutch has disengaged. To adjust, shift the platen to the
SHIFT
position {up) and loosen the ribbon oscillator lever clamping screw and nut.
Position the ribbon oscillator lever and tighten the clamping screw
and
nut.
Check this adjustment with the platen in the
UNSHIFT
position {down). See
Figure 67.
*
*
*
*
Omitted when .adjusting sprocket feed printers.
See page 60.