- 12-
(B-138)
MAIN
SHAFT
JAW
C
LUTC
H
SF'RllU TENSION
(Figure
20)
Place the typing unit on its right side. Rotate the main shaf't wttil
the low part of' the printing bail cam is toward the bottom of' the printer.
With the teeth of' the clutch driven member resting against the teeth of the
�i
ving
member, but not engaged, hook a
32
oz. scale on the driven member
in
l ine with the low part of' the printing bail cam
and
pull vertica.lly
downward.
It should require
22
to
26
ozs. to separate the clutch teeth.
NOTE: Atter checking the
22
to
26
oz. pull with the positive clutch teeth
still separated, gradua.l.ly reduce the t ension exerted
by
the scale
on the driven clutch member.
The clutch teeth should engage, top to
top, before the scale tension drops to
10
ozs
• .
SPACING
SHAFT
LOWER BEARING BRACKET ADJUSTMENT
(Figure
21)
NOTE: In order to facilitate rotating th e spacing shaft gear, hold the
spacing escapement pawl away from the ratchet.
There should be a minimum amount of' play without binding at any
point of' engagement between the spacing shaft gear and the main shaft spacing
gear during one co�lete revolution of' the spacing shaft gear.
To adjust,
place the typing unit in its normal upright position; unhook the carriage
return operating lever spring from the spring post;
move
the eccen tric
a.w&y'
from the bearing bracket and position the bracket
by
means of' its elongated
mounting holes.
Replace �he carriage return operating lever spring and
reposit ion the eccentric against the bearing bracket.
PRINTING B
A
I
L
SHAFT RIGHT
BEARING ADJUSTMENT
The printing bail should have some end play, not more than
.01;".
To adjust, remove the printing bail spring
and
position the right bearing
b7
utilizing its elongated mounting holes. Replace the printing bail spring.
Refer
to
Figure
Zl
for location of' parts.
REPLACE THE TYPE BAR CARRIAGE IN ACCORDAI-CE
WITH
THE FOLLCWITNG INSTRUCTIONS:
INSTRUCTIONS FOR REPLACING THE TYPE BAR CARRIAGE ON THE TYPING UNIT
Shift the platen to the
FIGURES
position
ani
rotate the
main
shaft
until
the printing bail is in its rear position. Then
move
the right margin
adjusting screw arm on the carriage to the rear so that it is approximately
45
degrees from vertical.
Hold the carriage
in
the right hand am rest the
left· front carriage support roller on the right end of' the front carriage track.
ma.ldng sure that the carriage guide screw engages the slot in the carriage
track.
Move the carriage slowly to the left until the rear carriage support
roller rests on the upper track.
Operate the carriage return lock bar
and
move
the pull bar bail to its rearmost position ey pushing on the right pull bar
bail roller w ith the right thumb. Move the carriage farther to the. left,
making
sure that the bell cranks engage their respective vanes, that the ri ght trent
carriage support roller and guide screw properlY engage the front carriage
track, and the pull bar bail roller is between the printing ba il blades.
When
the carriage has been moved far enough
to
the left to permit the right margin
adjusting screw to clear the spacing stop lever, restore the right margin
(.)")
-J
r'V
,r.,.
w
