Bell System Practices Plant Series Adjustments page 83

Horizon tal Tabulato r Mechani sm (Can't)
3. 06
SPACING DRUM--....
SPAC ING PAWL S
TABULA TOR STOP
OPERATING LEVER
-
SLIDE ARM
TABULATOR PAWL (PRELIMINARY
NOTE:
BEFORE MAKING THIS ADJUSTMENT, CHECK LEFT MARGIN AND SPACING GEAR PHASING
ADJUSTMENTS.
PURPOSE
TO SELECT TABULATOR STOP TO BE USED AS REFERENCE IN MAKING FINAL TABULATOR PAWL
HORIZONTAL AND VERTICAL ADJUSTMENTS.
PROCEDURE
(1) BEGINNING WITH 15TH SLOT COUNTERCLOCKWISE FROM ROLLER ON TABULATOR RING,
PLACE TABULATOR STOPS APPROXIMATELY AN EQUAL NUMBER OF SLOTS APART AROUND RE­
MAINING SLOTTED PERIPHERY OF RING CORRESPONDING TO LENGTH OF PRINTED LINE.
TO MOVE STOPS, HOOK SMALL SPRING HOOK IN HOLE AND PULL OUT RADIALLY FROM
(2)
DRUM. HOLDING STOP AWAY FROM DRUM, SLIDE IT ON GARTER SPRING TO DESIRED LO­
CATION AND INSERT IN SLOT. SPACING DRUM MAY HAVE TO BE ROTATED TO MAKE SOME
SLOTS ACCESSIBLE.
SIDEWAYS. DO NOT USE PLIERS TO MOVE STOPS.
DISENGAGE ALL CLUTCHES SO FRONT SPACING FEED PAWL IS IN LOWER POSITION.
(3)
PAWL .ADJUSTING PLATE AT CENTER OF HORIZONTAL AND VERTICAL ADJUSTMENT: TO ADJUST
VERTICALLY, LOOSEN BOTH MOUNTING SCREWS:, TO ADJUST HORIZONTALLY, LOOSEN ONLY
LEFT SCREW. HORIZONTAL ADJUSTMENT SHOULD BE MADE AFTER VERTICAL.
SPACING FEED PAWLS AND ALLOW DRUM TO ROTATE TO EXTREME COUNTERCLOCKWISE POSI­
TION. KEEPING SPACING CLUTCH DISENGAGED, MANUALLY ADVANCE DRUM UNTIL FIRST
STOP IS iMMEDIATELY TO LEFT OF PAWL.
THAT STOP IS ALIGNED WITH LEFT EDGE OF PAWL SHOULDER.
PLACE BLOCKING LEVER AND OPERATING LEVER SLIDE ARM IN UNBLOCKED POSITION.
(4)
DISENGAGE FEED PAWLS AND LET DRUM ROTATE TWO SPACES COUNTERCLOCKWISE.
FEE D PAWLS SHOULD BE FULLY ENGAGED.
(5) ROTATE DRUM CLOCKWISE UNTIL NE XT STOP IS JUST TO LEFT OF PAWL.
DESCRIBED IN PARAGRAPH
NOTING EACH CLEARANCE.
STOP WITH MAXIMUM CLEARANCE SHOULD BE USED AS REFERENCE IN MAKING FINAL
(6)
HORIZONTAL AND VERTICAL PAWL ADJUSTMENTS.
MOU NTIN G SCRE WS
PAW L ADJ UST ING PLA TE
)
CAUTION: MAKE SURE ALL STOPS ARE FIRMLY SEATED AND NOT T URNED
POSITION ADJUSTING PLATE HORIZONTALLY SO
BLOCK SLIDE ARM WITH BLOCKING LEVER.
FOR THIS STOP.
(4)
ISS 7, SECTION 573-115-700
REPEAT PROCEDURE FOR REMAINING STOPS,
GARTER SPRING
TABULATOR STOP
TABULATOR RING
(FRONT VIEW)
PLACE'
DISENGAGE
BOTH
GAGE
REPEAT PROCEDURE
Page 83