- ©
1961-
.
American Telephone and Telegraph Companyiilf
Printed
in
U.S. A.
BELL SYSTEM PRACTICES
Teletypewriter and
Data
Stations
SECTION
P34.420
Issue
1,
February,
1961
AT&TCo Standard
28
REPERFORATOR-TRANSMITTER SET,
UNIT, AND STAND
DISASSEMBLY AND REASSEMBLY ROUTINES
CONTENTS
PAR. NO.
1. GENERAL
1.01
2. DISASSEMBLY AND REASSEMBLY
. . . . . . . •
2.01-2.11
A. 28 Reperforator-Transmitter Set
.
. . . . . . . . . . . . 2.01
B. 28 Reperforator-Transmitter Unit
. . . •
. . . . . . . . 2.02-2.09
Cross Shaft Assembly
. . . . . . . . . . . . . . . . . . . . . •
2.07
Gear Bracket Assembly
(Fixed or Shift Gears) . .. .. .. .. .. . .. . .. . .. .. 2.08
Motor Unit .
. . . . . . . . . . . . . . . •
. . . . . . . . . . . . . . . 2.05
Nontyping Reperforator
. . . . . . . . . . . . . . . . . . . •
2.02
Tape-winder Drive Bracket Assembly
.
. . . . . 2.06
Transmitter-Distributor
.
. . . . . . . . . . . . . . . . . . . . 2.04
Typing Reperforator . . . .. . . . . . .. . . . . .. . . .. . 2.03
Variable Features . . . . . . . . . . . . . . . . . . . . . . . . . . 2.09
C. 28A Reperforator-Transmitter Stand . . . . . . . . . 2.10-2.11
Clutch Shaft Assembly . .. . . .. . . . . . . .. .. .. .. . 2.11
Tape Winder Assembly
.
. . . . . . . . . . . . . . . . . . . . 2.10
3. ASSOCIATED BELL SYSTEM PRACTICES . . 3.01
1.
GENERAL
1.01
This section contains the specific disassembly instruc-
tions for the 28 reperforator-transmitter set, unit, and
stand, and where necessary, includes the detailed reassembly
information. The material herein, together with the section
entitled Teletypewriter Apparatus, Disassembly and Reas
sembly, General Information and Routines, provides the com
plete disassembly and reassembly information for maintenance.
28 REPERF·TRANS SET,
UNIT, AND STAND
DIS·
ASSEMBLY
P34.420
AND RE·
Page
1
ASS EM BL Y
Summary of Contents for 28
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