Teletype 28 - Chad Chute (Self-Contained Typing Reperforator Set)

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1. 08 When a requirement calls for a clutch to
be disengaged, the clutch shoe lever must
be fully latched between its trip lever and latch
lever so that the clutch shoes release their ten-
sion on the clutch drum. When engaged, the
clutch shoe' lever is unlatched and the clutch
shoes are wedged firmly against the clutch drum.
Note: When the main shaft is rotated by hand,
the
clutch does not fully disengage upon
reaching its stop position. In order tore lieve,
drag and permit the main shaft to rotate freely,
apply pressure on the lug of the clutch disc
with a screwdriver to cause it to engage its
latch lever and fully disengage the clutch.
1. 09 To manually operate the typing reperfo-
rator or tape printer proceed as follows:
(1)
Attach the TP312709 armature clip to the
selector magnet armature by carefully
placing the spring loop over the magnet ter-
AXIAL PLATE
ASSEMBLY
TYPING
MECHANISM
CHAD
CHUTE-
ISS 8, SECTION 573-118-700TC
minal inSulator and pressing down to engage
the hook of the clip on the underside of the
armature and releasing. The spring tension
of the armature clip will hold the selector
armature in the marking (attracted) position.
(2) While holding the selectormagnet arma-
ture operated by means of the armature
clip, use the handwheel, included with the
special tools for servicing 28 teletypewriter
apparatus, to manually rotate the main shaft
in a counterclockwise direction until all the
clutches are brought to their disengaged
position.
(3) Fully disengage all clutches in accord-
ance with 1. 08, Note.
(4) Release the selector magnet armature
momentarily to permit the selector clutch
to engage.
RIBBON FEED MECHANISM ·
PERFORATOR MECHANISM
Figure 1 - 28 Typing Reperforator Unit
(Fully Perforated Tape)
Page 7