Teletype 28 - Page 172

SECTION 573-118-700TC
4. 17 Noninterfering BLANK Tape Feed Out Mechanism (continued}
Note 1: For units equipped with switch in place of contacts see 4.19.
Note 2: In this figure, references to left or right indicate
the viewers left or right as he faces the rear of the
equipment. --
CONTACT SPRINGS
( 1)
Requirement
All springs parallel to rear edge of mounting
bracket and contact actuating lever engage
contact button by a minimum of 75% of the
contact button.
To Adjust
Position springs with mounting screws
loosened. Tighten screws.
FACE OF
MOUNTING
BRACKET
CENTER
CONTACT
SPRING
LEFT
CONTACT
SPRING
LEFT SIDE
OF CONTACT
CONTACT
LEVER
RIGHT SIDE
OF CONTACT
MOUNTING
SCREWS
REAR
EDGE
OF
MOUNTING--~
BRACKET
(Left Side View)
(2) Requirement
(3)
Left contact spring approximately
parallel to face of mounting bracket.
To Adjust
Bend
left contact spring.
Requirement
With contact lever free of center
contact spring
Min 20 grams---Max 40 grams
to just open left side of contact.
To Adjust
Bend
center contact spring.
(4) Requirement
With contact lever away from
center contact spring
"--------Min 0.010 inch---Max 0.018 inch
gap at right side of contact.
To Adjust
Bend
contact spring.
(Rear View)
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