Teletype 28 Manual page 140

SECTION 573-115-700TC
4. 17 Printing Mechanism (Cont.)
RIBBON REVERSING LEVER- RIGHT
(RIGHT SIDE VIEW)
(LEFT SIDE VIEW) RIBBON REVERSING LEVER- LEFT
(A) RIBBON REVERSE SPUR SEAR
REQUIREMENT
WHEN RIGHT REVERSING LEVER IS IN
MAXIMUM DOWNWARD POSITION, THE
LEFT REVERSING LEVER SHOULD BE
IN ITS MAXIMUM UPWARD POSITION.
TO ADJUST
LOOSEN THE SET SCREWS IN THE
DETENT CAM. LOOSEN THE LEFT SPUR
GEAR NUT. S!:CUREL Y TIGHTEN THE
RIGHT SPUR GEAR NUT. MOVE THE RIGHT
REVERSINS LEVER TO ITS MAXIMUM .
DOWNWARD POSITION AND HOLD
LEFT REVERSING LEVER IN ITS
MAXIMUM UPWARD POSITION. THEN
TIGHTEN THE LEFT SPUR GEAR NUT.
(C) RIBBON REVERSE DETENT LEVER SPRING
REQUIREMENT
DETENT SEATED IN NOTCH OF CAM.
RIGHT RIBBON REVERSING LEVER
HELD DOWNWARD.
MIN. 6-1/2 OZS.---MAX. 9 OZS.
r
RIGHT SIDE FRAME
• DETENT CAM
SET SCREW
DETENT LEVER
' - - - - - - - - - - R I B B O N REVERSE SPUR GEAR
' - - - - - - - - - - - - - - - S P U R GEAR NUT
DETENT CAM
(LEFT REAR VIEW)
RIBBON REVERSE DETENT
REQOIREMEN I
DETENT SEATED APPROXIMATELY EQUAL
IN UPPER AND LOWER POSITIONS OF
DETENT CAM
TO ADJUST
POSITION CAM ON SHAFT WITH SET
SCREWS LOOSENED. LET LEFT END
OF DETENT STUD BE APPROXIMATELY
FLUSH WITH LEFT FACE OF CAM (PLAY
IN DETENT TAKEN TO RIGHT OF PRINTER)
TIGHTEN SCREWS.
TO START THE DETENT LEVER MOVING.
PagP. 140
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