Teletype 43 Teleprinter Basic RO, Service Manual

Page: 127 / 222

CARRIAGE WITH POST ASSEMBLY
3.09 To remove the carriage with post assembly:
(D
Remove operator console, if present.
MANUAL 406, 2-37
Note: The upper guide rod must be nickel
plated. The lower guide rod may be nickel plated
or black oxide.
See Page 1-62.
0
Remove print head and lead screw
(perform 3.01 and 3.08).
Spread left side frame and
remove upper guide rod
and carriag�.
0
Move carriage to left margin.
Remove carriage cable from
logic card.
(V
Remove screw and washer
from each guide rod.
G)
spr_ead cla�p with cover and disen�age from
·
log1c card (1f present). Spread left s1de frame
outward to disengage left end of lower guide
rod, then pull toward the front to remove lower
guide rod, two felt washers and clamp with
cover.
LEAD SCREW NUT
3.10 To remove the lead screw nut:
(D
Remove operator console, if present.
See Page 1-62.
0
Remove print head and lead screw
(perform 3.01 and 3.08).
G)
Tilt lead screw nut
handle outward to
clear retaining
notch in carriage.
Rotate counterclock­
wise (CCW) unti�
tabs on nut align
with opening in
carriage. Spring
will force nut
away from carriage.
0
Remove springs and nuts.
Note: The 430351 and 430352 lead
screw nuts are keyed and must be engaged
when properly installed.
��
LEAD SCREW NUT
CARRIAGE
emove
a
112626 nut and a 45815
lockwasher from each guide rod.
ROTATE
ccw
Early Design Nut Arrangement
RETAINING NOTCH
TABS
LEAD SCREW
NUT HANDLE
Late Design Nut Arrangement