Bell System Practices Plant Series Adjustments page 138

SECTION 573-115-700
FUNCTION PA WL
FUNCTION BAR
STRI PPER BLADE
4. 19 Spacing Mechanism (Cont.)
AUTOMATIC
CARRIAGE RETURN ARM
BELL
CRANK
Page 138
AUTOMATIC CARRIAGE RETURN AND
SPACING DRUM
LINE FEED ARM
REQUIREMENT (OPERATING ON BASE)
CARRIAGE IN POSITION TO PRINT TWO
SPACES BEFORE THE LAST DESIRED
CHARACTERS, AND FRONT SPACING PAWL
FARTHEST ADVANCED. CLEARANCE BE­
TWEEN LEADING END OF AUTOMATIC
CARRIAGE RETURN ARM AND BELL CRANK.
MIN.
MAX.
TO ADJUST
POSITION AUTOMATIC CARRIAGE RETURN
ARM WITH MOUNTING SCREWS LOOSENED.
RANGE OF ADJUSTMENT IS FROM 65TH TO
85TH CHARACTERS.
(FRONT VIEW)
REQUIREMENT
TYPE BOX CLUTCH AND FUNCTION
CLUTCH DISENGAGED. LEFT LINE
FEED FUNCTION PAWL HELD IN ITS
REAR POSITION AND RESTING ON THE
UPPER EDGE OF THE STRIPPER BLADE.
CLEARANCE BETWEEN UPPER EDGE OF
FUNCTION BAR AND LOWER SURFACE
OF NOTCHED SECTION OF FUNGJON
PAWL.
MIN. 0.055 INCH
MAX.
0.065 INCH
THE LETTERS FUNCTION PAWL NEAR
THE OPPOSITE END OF THE STRIPPER
BLADE SHOULD HAVE THE SAME
CLEARANCE.
TO ADJUST
POSITION THE SHOULDER BUSHING
AT THE LOWER END OF THE RIGHT
AND LEFT STRIPPER BLADE ARM
WITH THE LOCK NUT LOOSENED.
NOTE
WHEN CHECKING THIS ADJUSTMENT
SINGLE-DOUBLE LINE FEED LEVER MUST
BE IN DOUBLE LINE FEED POSITION.
SHOULDER BUSHING
0.040 INCH
0.055 INCH
NOTE
NOTE
,