Teletype 28 - Page 104

SECTION 573-118-700TC
3. 24 Manual and Power Drive Backspace Mechanism (For Chadless Tape) (continued)
RETURN
LATCr:
ECCENTRIC"'"--,_..,
ECCENTRIC
MOUNTING
SCREW
(Front View)
FEED PAWL
Page 104
(A) RETURN LATCH
Requirement
Backspace mechanism in unoperatec
position. Clearance between return
latch and feed pawl extension
r--------Min 0.004 inch---Max 0. 020 incl
To Adjust
Adjust
eccentric with mounting
screw friction tight. Tighten screv;
(B)
FEED PAWL ECCENTRIC (Preliminary:
Requirement (Manual Backspace)
With the backspace bellcrank in its
operated position and the feed wheel
detented back one space
'----------Min some---Max 0. 003 inch
FEED WHEEL
(Front View)
clearance between the feed wheel
ratchet tooth and the backspace
feed pawl.
Requirement (Power Drive Backspace)
With the backspace bellcrank in its
operated position, the high side of
the eccentric should be in its
uppermost position.
To Adjust
Loosen the nut post (friction tight)
and rotate eccentric with hex
wrench. Tighten the nut post.