Bell System Practices Plant Series, Настройки

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1
BELL SYSTEM PRACTICES
Plant Series
SECTION
573-115-700
Issue
7,
July,
1966
AT&TCo Standard
28
TYPING UNIT
ADJUSTMENTS
CONTENTS PAGE
1.
GENERAL ................ .
5
UNMOUNTED POSITIONS OF
TYPING UNIT .
.
...
.
..
.
...... .
6
OPERATING CONDITIONS OF
CLUTCHES ..................
6
MANUAL SELECTION OF
CHARACTERS OR FUNCTIONS. .
. . .
6
VARIABLE FEATURES . .
. . . . . . . .
7
EARLIER DESIGN MECHANISMS .
. . 7
COMPLETE ADJUSTMENT OF
TYPING UNIT . .
. . . . . . . . . . . . . . 7
2.
BASIC UNITS. .
. . . . . . . . . . . . . . . 8
Code Bar Mechanism
Code bar detent .
. . . . . . . . . . . . . . 70
Code bar detent spring .
. . . . . . . . . 70
Code bar shift lever link bracket.
. . .
22
Code bar shift lever drive arm . .
. . . 21
Code bar yield spring .
. . . . . . . . . .
70
Common transfer lever spring .
.
. . .
19
Intermediate arm backstop bracket .
. 20
Transfer lever eccentric . .
. . . . . . . 19
Transfer lever spring . .
. . . . . . . . . 19
Function Mechanism
Figs - ltrs shift code bar operating
mechanism .
. . . . . . . . . . . . . . . . . 38
Function bar spring .
. . . . . . . . . . . 59
Function contact spring . .
. . . . . . . . 68
Function lever spring .
. . . . . . . . . . 59
Function pawl spring. .
. . . . . . . . . . 59
Function reset bail blade .
. . . . . . . . 37
Function reset bail spring .
. . . . . . .
37
Keyboard lock lever spring .
. . . . . . 46
Stripper blade drive cam position .
. . 62
Stunt box clip.
. . . . . . . . . . . . . . . .
60
Unshift-on-space function pawl . .
. . . 69
CONTENTS PAGE
Line Feed and Platen Mechanism
Left margin
(
sprocket feed
)
.
. . . . . . 73
Line feed bar bell crank spring ....
61, 76
Line feed bar release lever spring .
. 61
Line feed clutch phasing .
. . . . . . . . 31
Line feed spur gear detent eccentric .
61
Line feed stripper bail spring. .
. . . . 63
Paper finger
(
friction feed
)
.
. . . . . . 67
Paper finger locking arm spring
(
sprocket feed
)
. .
. . . . . . . . . . . . . . 77
Paper finger or guide bracket
(
sprocket feed
)
. .
. . . . . . . . . . . . . . 7 5
Paper finger or guide bracket
latch spring
(
sprocket feed
)
.
. . . . . .
77
Paper finger or guide bracket shaft
spring
(
sprocket feed
)
. .
. . . . . . . . .
77
Paper. finger spring
(
friction feed
)
. .
.
67
Paper guide
(
sprocket feed
)
.
. . . . . .
76
Paper pressure bail spring
(
friction feed
)
.
. . . . . . . . . . . . . . . 67
Paper straightener collar
(
friction feed
)
.
• . . . • . . . • . •
.
. . . 66
Paper straightener lever spring
(
friction feed
)
.
. . . . . . . . . . . . . . . 66
Platen detent bail spring .
. . . . . . . . 61
Platen end play
(
sprocket feed
)
.
. . . . 7 4
Pressure roller lever spring
(
friction feed
)
. . . . . . . . . . . . . . . .
67
Printing hammer stop bracket
(
sprocket feed
)
. .
. . . . . . . . . . . . . . 7 3
Printed line
(
sprocket feed
)
.
. . . . . . 7 4
Right margin
(
sprocket feed
)
.
. . . . .
73
Single-double line feed stripper
bail assembly springs .
. . . . . . . . . .
64
Sprocket pin separation
(
sprocket feed
)
. .
. . . . . . . . . . . . . . 74
Sprocket pin spring
(
sprocket feed
)
. . 76
Main Shaft and Trip Shaft Mechanisms
Clutch drum position
(
except
selector
)
. .
. . . . . . . . . . . . . . . . . .
29
Clutch latch lever spring
(
except
selector
)
. .
. . . . . . . •
.
. . . . . . . . .
23
Clutch shoe lever .
. . . . . . . . . . . . .
28
Prepared for American Telephone and Telegraph Company by Teletype Corporation
© 1953
and
1961
by Teletype Corporation
All rights reserved.
Printed in U.S. A.
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