Bell System Practices Plant Series Adjustments page 107

Vertical Tabulation
3. 31
PAGE FEED - OUT INDE X PLATE POSITION
(I)
REQUIREMENT --- PLACE AN INDE X PLATE IN THE NUMBERED SLOTS ON DISK CORRESPONDING
TO LENGTH OF PAGE FORM TO BE USED. SYNCHRONIZE PAGE FEED - OUT WITH A FORM BY
POSITIONING FORM SO THAT TYPING UN IT WILL PRINT IN FIRST TYPING LINE OF THE FORM.
WHEN TYPING UNIT IS IN STOP POSITION, TOP OF RIBBON GUIDE SHOULD AL IGN WITH
BOTTOM OF PRINTING LINE.
TO POSITI ON --- WITH PAGE FORM IN DESIRED POSITION, DISENGAGE PAGE FEED - OUT GEAR
FROM ITS IDLER GEAR. ROTATE FEED - OUT GEAR UNTIL NOTCH IN INDE X ING DISK A LIGNS
WITH POINTER ON SIDE OF PRINTER, RE - ENGAGE GEARS.
SWITC H CONTACTS (TRANSMITTER CO NTROL ONLY)
REQUIREMENTS --- FOR TRANSFER TYPE CONTROL SWITCH
WITH NORMALLY CLOSED (LOWER) C ONTACTS CLOSED, LIFT SWINGER FREE OF MATING CONTACT.
I.
IT SHALL REQUIRE A MIN IMUM OF 3 0 GRAMS TO MOVE LOWER CONTACT SPRING AWA Y FROM ITS
STIFFENER.
TO ADJUST - FORM THE LOWER CONTACT SPRING BY BENDING.
2 .
WITH LOWER CONTACT CLOSED
M IN 30 GRAMS ---- ---------------------------------
TO M OVE SWINGER FROM ITS MATING CONTACTS.
TO ADJUST - FORM THE SWINGER BY BENDING.
3 .
WITH LOWER CONTACT CLOSED
{a) GA P BETWEEN UPPER CONTACT AND MATING CONTACT OF SWINGER
MIN 0 . 008 INCH -------------------------------- ----------------------- MA X
TO ADJUST - POSITION STIFFENER OF NORMALLY CLOSED CONTACT.
WITH A GAP OF 0 . 008 TO 0. 0 1 5 INCH, IT SHALL REQUIRE
{ b)
MIN 25 GRAMS -------------------------------------------------------- MA X 3 5 GR A MS
TO PULL UPPER CONTACT AWAY FROM ITS STIFFENER
TO ADJUST- FORM THE UPPER CONTACT SPRING BY BENDING.
REC HECK REQU IREMENT (a) .
.
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Transmitter Distributor Control Mechanism (Cont.)
and
GRAM SCALE
ISS 7, SECTION 573-115-700
----------------------- MA X 45 GRAMS .
BLOCKING LEVERS
(VERTICAL TAB AND P A GE FEED - OUT)
O.CI5
INCH
GRAM SCALE
Page
107