Teletype 28 - Page 36

SECTION 573-118-700TC
2. 26 Punch Mechanism for Chad less Tape (continued)
TEN CHARACTERS PER INCH (Preliminary)
DIE WHEEL
(1) Requirement
Indent of die wheel eccentric stud point
ing downward.
To Adjust
Position die wheel eccentric stud with
locknut loosened. Tighten nut.
(2) Requirement
With tape shoe blocked away from feed
wheel, feed pawl and detent disengaged,
and tape removed, feed wheel should
rotate freely. Check through 3 or 4
revolutions of feed wheel. Refine re-
(Front View) quirement (1) above if necessary to
REPERFORA TOR MOUNTING
Requirement
Note: Adjustments
on this page do not
apply to tape printer.
meet this requirement.
Note: Before proceeding with the following
adjustment chec!{ both BIAS SPRING (2. 30)
tensions, and if unit is equipped with a
slack tape mechaPism having a clamp plate
with an adjustable wear disc, loosen the
mounting nut and turn a new edge of the
disc toward the tape. Tighten nut.
Mount the reperforator to the base and adjust in accordance with the associated base section.
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TEN CHARACTERS PER INCH (Final)
------- ------·- --- -- ------ --------~ ----· ·----~-
{1) Requirement
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TAPE
-
--- TP156011
GAUGE
With a piece of tape perforated with six series of 9 BLANK code combinations followed
by a LETTERS combination placed over the TP95960 gauge or the smooth side of the
TP156011 tape gauge so that the circular portion of the first number 2 code hole in the
tape is concentric with the first hole of the tape gauge, the next four holes in the tape
gauge should be visible through the number 2 code holes in the tape and the circular
portion of the last (sixth) number 2 code hole in the tape should be entirely within
the 0. 086 diameter hole of the tape gauge.
(2) Requirement
With tape shoe held away from feed wheel, feed pawl and detent disengaged and tape removed,
feed wheel should rotate freely.
To Adjust
With tape removed from punch mechanism, loosen eccentric locknut and rotate die wheel eccen-
tric shaft until it binds against feed wheel. Back off eccentric until die wheel is just free. Check
through 3 or 4 rotations. Keep the indent of eccentric below the horizontal centerline of the stud.
Refine adjustment for requirement (1), if necessary, by moving the die wheel toward the feed
wheel to decrease the character spacing and away from the feed wheel to increase the character
spacing, nuL Refine FEED PAWL (2.25) adjustment, if necessary.
CAUTION: WITH TAPE REMOVED. MAKE SURE FEED WHEEL AND DIE WHEEL DO NOT
BIND.RECHECK HEQUffiEMENT (1). IF NECESSARY, REFINE.
Note: First fifth holes in gauge are same size as code holes in tape (0.072 inch diameter).
Six!:h hole in gauge is inch). This arrangement allows _:+.:0.007 inch variation in 5 inches.
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