Teletype 28 - Page 83

3. 03 Tape Absence Contact Assembly
(A) TAPE ABSENCE LONG CONTACT SPRING
Requirement
Tape sensing finger in its extreme
counterclockwise position.
ISS 8, SECTION 573-118-700TC
~) TAPE ABSENCE CONTACT
ASSEMBLY POSITION
Requirement
Min 35 grams---Max 45 grams-----.
,---Contact ,.POints aligned, insulator
on long contact spring centrally
located with sensing finger
extension.
To Adjust
Remove guard. Bend long contact spring.
(D) TAPE ABSENCE CONTACT ASSEMBLY
GUARD POSITION
Requirement
The guard should not
interfere with movement
To Adjust
With contact assembly guard
removed, mounting screws
loosened, position contact
springs. Tighten screws.
of sensing finger. ! ,b dl ' 40 I
To Adjust
With mounting nut
loosened, position
the guard.
(C) TAPE ABSENCE SHORT CONTACT
SPRING POSITION
Requirement
Tape sensing finger in its extreme
counterclockwise position.
Min 0.010 inch---Max 0. 020 inch
clearance between sensing finger
extension and closest point on
bakelite insulator of long cqntact
spring.
To Adjust
With guard removed, bend the short
contact spring.
(E) TAPE ABSENCE CONTACTS SENSING
FINGER ENDPLA Y
Requirement
The endplay between tape sensing
finger and tape guard should be
Min
0.006 inch---Max 0.035 inch
To Adjust
Bend the tape sensing finger.
(Front View)
(F)
TAPE ABSENCE CONTACTS CABLE
ASSEMBLY POSITION
Requirement
The cable assembly for the tape absence
contacts should be routed together with the
selector magnet cable assembly and, if
present, the code reading contacts cable
assembly. Form the cables so that they
do not interfere with the movement of the
tape sensing finger.
To Adjust
Secure the position of the cable assemblies
by means of an appropriate cable clamp
located behind the selector magnets.
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(Top View)
Page 83