Teletype 28 Manual page 72

SECTION 573-115-700TC
2. 70
Positioning Mechanism (continued)
TYPEBOX POSITION
Requirement
Typebox and spacing clutches disengaged. Typebox shifted to letters position. Four mounting
screws loosened so that space suppression ring, or automatic carriage return line feed
ring, is free to rotate on drum. (Units equipped with limited adjustment spacing drum:
spacing cut out and automatic carriage return line feed arms in maximum counterclockwise
position. Farthest advanced feed pawl engaged with tooth above drum cut-away section.)
Clearance between letters print indicator and center line of sprocket pins in right hub:
..----Min 5/16 inch---Max 7/16 inch
To Adjust
Loosen two typebox clamp screws and two printing carriage clamp screws. Position typebox.
Tighten typebox clamp screws. Do not tighten printing carriage clamp screws until
printing carriage position
(2.47)
adjustment is made.
PLATEN
RIGHT SPROCKET HUB
SPROCKET PIN
TYPE BOX
(Top View)
INDICATOR
SPACING FEED PAWL
RATCHET WHEEL
Page 72
SPACING DRUM
CUTAWAY SECTION
(No Teeth)