Teletype 28 - Page 163

ISS 8, SECTION 573-118-700TC
4.08 Noninterfering BLANK Tape Feed Out Mechanism (continued)
(A} FEED OUT PAWL
To Check
With unit operating under power, allow feed out
VERTICAL
CENTER LINE
operation to be interrupted by an incoming message. ~
Requirement
r----- Feed hole and code holes of first character on
same center line.
To Adjust
·With power off, check detent roller for full
engagement with ratchet. Latch feed out
mechanism in operated position. Position
main shaft so that drive arm is on high part
of eccentric collar. With clamp screw
loosened, position feed out pawl against
first ratchet tooth to left of vertical center ___ ___.
'
'
\
line. Tighten clamp screw friction tight.
Rotate main shaft until feed out pawl has
I I
',,~/
retracted
Min 0.020 inch---Max 0.030 inch -------....J
Reposition pawl against tooth. Tighten
clamp screw. Recheck requirement.
\
\
I
I
---d~-EED HOLE
~CODE HOLES
.FEED OUT PAWL
DETENT ROLLER
(Front View)
(B)
FEED OUT PAWL SPRING
Requirement
..._----Min 1/2 oz---Max 2 oz
to start pawl moving.
Note:
After completion of a message
ueea out mechanism unlatched), feed
out pawl should rest on uppe~ portion
of a feed wheel ratchet tooth and should
not engage vertical face of any tooth.
Refine adjustment if necessary.
FEED OlJT PAWL ARM
(Front View)
DRIVE ARM
U •
CLAMP SCREW
Page 163