Teletype 28 Manual page 54

SECTION 573·115·700TC
2. 50 Printing Mechanism (Cont.)
PRINTING HAMMER STOP BRACKET
REQUIREMEt-!T __ .:;-WITH TYPE
BOX
IN POSITION TO
PRINT CHARACTER "M", PRINTING TRACK IN
ITS MAXIMUM DOWNWARD POSITION, AND
PRINTING HAMMER STOP BRACKET HELD
TOWARD THE PLATEN WITH PRESSURE OF
8 OZS; CLEARANCE BETWEEN PRINTING
HAMMER AND "M" TYPE PALLET.
MIN, 0.005 INCH
MAX. 0.050 INCH
AT ANY POINT ALONG THE ENTIRE
LENGTH OF THE PLATEN.
TO ADJUST ---POSITION STOP BRACKET
BY MEANS OF lTS MOUNTING SCREW.
TIGHTEN SCREWS.
PRINTING HAMMER
BAIL PIVOT STUD
LATCHING EXTENSIO
OPERATING
BAIL LATCH
TYPE PALLET SPRING----...,
REQUIREMENT
TYPE BOX REMOVED FROM THE
UNIT. 8 OZS. SCALE APPLIED
VERTICALLY TO THE END OF
THE PALLET SHANK.
MIN. 1/4 OZS:
MAX. 3/4 OZS.
TO START PALLET MOVING.
LLET
J1o
7
c
MOUNTING SCREW
(TOP VIEW)
t-
8
ozs.
I
PRESSURE
I
I
I
PRINTING ARM
- I
I
I {1) REQUIREMENT
SECONDARY
PRINTING ARM
PRINTING ARM
CLAMP SCREWS
(FRONT VIEW)
NOTE 1
THE PRINTING ARM ADJUSTMENT SHOULD ALWAYS BE
MADE WITH THE PRINTING HAMMER OPERATING BAIL
SPRING BRACKET IN THE NO. 1 POSITION. POSITIONS
NO. 2 AND 3 ARE TO BE USED ONLY FOR MAKING
MULTIPLE COPIES.
Page 54
PRINTING TRACK IN MAXIMUM DOWNWARD
POSITION.
PRINTING HAMMER OPERATING BAIL
AGAINST ITS STOP.
SOME CLEARANCE BETWEEN SECONDARY
PRINTING ARM AND FORWARD EXTENSION
OF HAMMER OPERATING BAIL.
MAX. 0.015 INCH
WHEN PRINTING ARM SLIDE IS HELD
DOWNWARD OVER EACH PRINTING TRACK
MOUNTING SCREW FOR MAXIMUM CLEARANCE.
(2)
REQUIREMENT
PRINTING TRACK IN UPPERMOST
POSITION. LATCHING EXTENSION
OF PRINTING HAMMER OPERATING
BAIL SHOULD OVERTRAVEL LATCHING
SURFACE OF OPERATING BAIL LATCH BY
MIN. 0.006 INCH
CHECK RIGHT AND LEH POSITIONS
TO ADJUST
POSITION SECONDARY PRINTING ARM
WITH CLAMP SCREWS LOOSENED.
NOTE 2
FOR EARLIER DESIGN SEE PAR. 4.16