Bell System Practices Plant Series Adjustments page 147

4.28
Horizontal Tabulator Mechanism (Cont. )
,.
PAWL MOUNTING ARM
FIXED TABULATOR STOP NEAR
RIGHT END OF SHAFT---- -- -- -- -.,.¥;-
PAWL MOUNTING ARM OPERATING RANGE (PRELIMINARY)
NOTE--- PRIOR TO THIS ADJUSTMENT, CHECK THE FOLLOWING: OSCILLATING RAIL SLIDE
(PAR. 2.30), PRINTING CARRIAGE POSITION (PAR. 2.47) AND PRINTING CARRIAGE LOWER
I
ROLLER (PAR. 2.46).
REQUIREMENT (UNITS WITH FRICTION FEED PLATENS)
SPACING CLUTCH DISENGAGED. SPACING PAWL, WHICH IS FARTHEST ADVANCED,
ENGAGING TOOTH IMMEDIATELY ABOVE CUTAWAY SECTION OF RATCHET. TABULATOR
"'
PAWL RIDING UP ON FIXED STOP. HIGH PART OF ECCENTRIC TOWARD FORK OF MOUNTING
ARM. CLEARANCE
MIN. 0.070 INCH
REQUIREMENT (UNITS WITH SPROCKET FEED PLATENS)
HIGH PART OF ECCENTRIC TOWARD LOWER ROLLER MOUNTING SCREW.
TO ADJUST
POSITION ECCENTRIC.
ECCENTRIC
MAX. 0.090 INCH
ISS 7, SECTION
LO WE R RO LLE R MO UN TIN G SC REW
TABULATOR PAWL
RATCH ET
573-115-700
Page 147