Teletype 28 - 4.01 Ribbon Feed Mechanism for Chadless Tape and Fully Perforated Tape

SECTION 573-118·700TC
4. EARLIER DESIGN MECHANISMS
4.01 Ribbon Feed Mechanism for Chadless Tape and Fully Perforated Tape
(For Later Design see 2. 64 and 2. 65)
RIBBON FEED PAWL
RATCHET
(B) RIBBON FEED ECCENTRIC STUD
Requirement
With rocker bail to extreme left, there
should be
Mia 0.012 inch---Max 0.028 inch-----J
, ........ retaini.rlg pa.wl and ratebet
·¥h 011 side where clearance is least.
(A) RIBBON FEED PAWL SPRING
Requirement
With rocker·bail to extreme left
..------Min 10 oz---Max 14 oz
to
pull spring to installed length.
"'0~:-:::====----o-::..' ....... -:_ .. .:-,
/ ......... ., ''
/ ..... ' '
I I ' '
I I \ \
I I \ '
_rig:~ .0 ~~\'
I 1 I
'\ ... , I f I
'\'-.. .... , 8' , ___ Q" : //
' I ~~
' I /,
',', -- ·"'~'
' ''
'' '..._, I
.......... .......... :! -
ECCENTRIC STUD
(Locknut on
Other End)
~
ROCKER BAIL
ADJUST ABLE EXTENSION
ARM
(Fully Perforated
Tape)
(1) ~·d,..
f.J•tat equipped with eccentric. stv.d:
ifliOd:ion •tad with locMt.tt.loosened.
Tilbten nut.
DRIVE ARM
(Fully Perforated Tape)
(2} To Adjust
Units equipped with adjustable arm:
By means of pry point, position
adjustable arm with mounting'screws
friction tight. Tighten screws.
Note: Units in which the old style rocker bail
is present, position the eccentric in its neutral
position and make the adjustment with the
adjustable drive arm.
Page 156
ADJUSTABLE
ARM
ROCKER
BAIL