Bell System Practices Plant Series Adjustments page 106

SECTION
573-115-700
Vertical Tabulation and Transmitter Distributor Control Mechanism (Cont.)
3. 30
TABULATION I NDEX
PLATE POSITIONS
PAGE FEED - OUT
BLOCKING LEVER (INNER)
(G ) TRANSMITTER CONTROL SWITCH (TRANSMITTER CONTROL ONLY)
REQUIREMENTS --- FOR SINGLE-cONTACT TYPE CONTRO L
1 .
WITH TRANSMITTER CONTROL CONTACTS CL OSED, THERE SHOULD BE SOME CLEARANCE BETWEEN
INSULATED EXTENSION OF SWINGER AND LOBE OF FEED - OUT AND VERTICAL TABULATOR
BLOCKING LEVERS.
TO CHECK - ROTATE MAIN SHAFT UNTIL FEED - OUT AND VERTICAL TABULATOR BLOCKING LEVERS
ARE UNOPERATED (RESTING ON TOP OF
TO ADJUST - POSITION THE CONTACT ASSEMBLY WITH ITS MOUNTING SCREWS LOOSENED.
W ITH TRANSMITTER CONTROL CONTACTS OPENED BY FEED - OUT BLOCKING LEVER , CLEARANCE
2 .
BETWEEN SWITCH CONTACTS SHALL BE
0 .0 1 0
M IN INCH ---------------------------------------- ---------- MAX
TO CHECK - SELECT FEED - OUT CODE COMBINATION . ROTATE MAIN SHAFT UNTIL FEED - OUT SLIDE
IS IN ITS EXTREME FORWARD POSITION AND FEED - OUT BLO CKING LEVER DROPS BEHIND ITS SLIDE
TO OPEN CONTACTS
TO ADJUST - REFINE REQUIREMENT NO.
3. WITH CONTROL CONTACTS OP�NED BY VERTICAL TABULATOR BLOCKING LEVER1CLEARANCE
BETWEEN SWITCH CONTACTS SHOULD BE
0.0 1 0
INCH ------------------------------------------------- MAX
MIN
TO CHECK - SELECT VERTICAL TABULATOR CODE COMBINATION . ROTATE MAIN SHAFT UNTIL
VERTICAL TAB SLIDE IS IN ITS EXTREME FORWARD POSITlON AND VERTICAL TABULATOR BLOCKING
LEVER DROPS BEHIND ITS SLIDE
TO ADJUST - REFINE REQUIREMENT NO. 1. ABOVE.
Page
106
(J) TABULATION INDEX PLATE POSITION
REQUIREMENT --- WITH REQUIREMENT (I)
MET, LINE FEED PLATEN TO DESIRED
FIRST LINE OF PRINTING IN THAT FORM.
TO POSITION --- PLACE TABULATION INDEX
PLATE TO ALIGN WITH POINTER ON
SIDE OF PRINTER. INSTALL ADDITIONAL
TAB INDEX PLATES AT SUCCEEDING
DESIRED PRINTING LINES WITHIN THE FORM.
WHEN TABULATION AT A GIVEN POINT IS
NOT NEEDED, ROTATE TAB INDEX PLATES
(l / 4
TURN) ON THEIR SIDES.
(K) BLOCKING LEVER SPRING
REQUIR EMENT --- WITH SPRING UNHO OKED
AND BLOCK ING LEVER ON TOP OF SLIDE .
9 OZS. --- MAX.
MIN.
TO PULL RESPECTIVE SPRING TO POSITION
LENGTH.
*BLOCKING LEVER SPRINGS USED WITH
TRANSFER TYPE SWITCH (PAR.
1 2
MIN
S
LIDES).
1
ABOVE.
-�<
ll
OZS.
3.31)
13-l /2
OZS --- MAX
OZS
0.0 2 0
INCH
0.0 2 0
INCH
, , ,
..
..