Teletype 28 Manual page 107

ISS 8, SECTION 573-115-'IOOTC
3. 31 Vertical Tabulation and Transmitter Distributor Control Mecbanlsm (Cont.)
(I) PAGE FEED-our INDEX PlATE POSITION
REQUIREMENT --- PlACE
AN
INDEX PLATE IN THE NUMBERED SLOTS ON DISC CORRESPONDING
TO LENGTH OF PAGE FORM TO BE USED. SYNCHRONIZE PAGE FEED-oUT WITH A FORM BY
POSITIONING FORM SO THAT TYPING UNIT WILL.PRINT IN FIRST TYPING LINE OF THE FORM.
WHEN TYPING UNIT IS IN STOP POSITION, TOP OF RIBBON GUIDE SHOULD ALIGN WITH
BOTTOM OF PRINTING LINE.
TO POSITION ---WITH PAGE FORM IN DESIRED POSITION, DISENGAGE PAGE FEED-oUT GEAR
FROM ITS IDLER GEAR. ROTATE FEED-our GEAR UNTIL NOTCH IN INDEXING DISC ALIGNS
WITH POINTER ON SIDE OF PRINTER, RE-ENGAGE GEARS.
SWITCH CONTACTS (TRANSMITTER CONTROL ONL'
REQUIREMENTS ---FOR TRANSFER TYPE CONTROL SWITCH
--. -1. WITH NORMALLY CLOSED (LOWER) CONTACTS CLOSED, LIFT SWINGER FREE OF MATING CONTACT.
IT
SHALL REQUIRE A MINIMUM OF
30
GRAMS TO MOVE LOWER CONTACT SPRING AWAY FROM ITS
STIFFENER.
TO ADJUST -FORM THE LOWER CONTACT SPRING BY BENDING.
-2. WITH LOWER CONTACT CLOSED
MIN
30
GRAMS ---MAX
45
GRAMS
TO MCNE SWINGER FROM ITS MATING CONTACTS.
TO ADJUST -FORM THE SWINGER BY BENDING.
3. WITH LOWER CONY ACT CLOSED
(a)
GAP BETWEEN UPPER CONTACT AND MATING CONTACT OF SWINGER
MIN 0.008 INCH--- MAX 0.015 INCH
TO ADJUST - POSITION STIFFENER OF NORMALLY CLOSED CONTACT.
(b)
WITH A GAP OF 0.008 TO 0.015 INCH, IT SHALL REQUIRE
MIN
25
GRAMS---MAX
35
GRAMS
TO
PULL
UPPER CONTACT AWAY FROM ITS STIFFENER
TO ADJUST- FORM THE UPPER CONTACT SPRING BY BENDING.
RECHECK REQUIREMENT
(a).
~
0
t
I I
GRAM SCALE
(LEFT SIDE VIEW)
BLOCKING LEVERS
GRAM SCALE
NERTICAL TAB AND PAGE FEED-QUT)
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