Teletype 28 - Page 70

2. 60 Typing Mecnanism (conunueuJ
PRINTING LATCH
Note
1: For units with adjustable printin~t
latch mounting bracket.
(1) Requirement
With rocker bail in its extreme left posi-
tio"• manually raise the print hammer
accelerator. The clearance between the
print hammer "accelerator and the print-
ing latch should be
Min
some---Max 0.015 inch It--
(2) Requirement
.----With rocker bail in its extreme right
position, there shoold be son1e over ..
travel of the print hamn1er accelerator
with respect to the latching surface of
the pril1ting latch and some clearance
between the print hammer accelerator
and the ribbon carrier (or accelerator
blocking link U present).
To Adjust PRINTING
1) Position the rocker ball to the extreme LATCH
right. With the high part of the eccentric
to the left, rotate the eccentric so that the
clearance between the print hammer
accelerator and the ribbon carrier is
Approxinlately 0.065 inch
With mounting screws friction tight,
position the pritlting
latch n1ountin11 bracket
to its extrenle rear position.
) With the
rocker bail to the extreme left,
move the printing latch mountitlg bracket
toward the front until the print hammer
accelerator just trips. Ti~&hten the
mounting
screws.
£CCENTRIC
MOUNTING
SCREW
TRIP LINK ECCENTRIC
PRINT
HAMMER ACCELERATOR
) With the
rocker bail to the extreme left, position
the trip link eccentric with locknut loose (keeping ___ ....
the high part to the left) until the clearance
between the printing latch and the prh\t
hammer accelerator is as called for in
requirement (1). Tighten eccentric locknut.
Note
2: For units with non-
adjustable printing latch
mounting bracket use above PRINTING LATCH
''(1) Requirement" and adjust MOUNTING BRACKET
according to "To Adjust (3).''
PRINTJNG LATCH
ACCELBRATat
BLOCKING LINK
(If Present)
(Left Side Views)
Page 70