Teletype 43 Teleprinter Basic RO, Service Manual

Page: 113 / 222

MANUAL 406, 2-23
E.
CONTENTS
PAGE
1. GENERAL . . . . . . . . . . . . . . . . . . . .
2-23
2. TOOLS REQUIRED . . . . . . . . . . . . .
2-24
3. DISASSEMBLY/REASSEMBLY.... 2-25
PRINT HEAD WITH COVER . . . . . .
2-25
SPACING MOTOR BELT ......... 2-28
SIGNAL BELL . . . . . . . . . . . . . . . . .
2-28
SPACING MOTOR WITH
CABLE AND ENCODER .
. . . . . . . . 2-30
LINE FEED MOTOR . . . . . . . . . . . . 2-32
PLATEN ...................... 2-32
LEAD SCREW . . . . . . . . . . . . . . . . . 2-36
CARRIAGE WITH POST
ASSEMBLY . . . . . . . . . . . . . . . . . . .
2-37
LEAD SCREW NUT ............. 2-37
COLLAR WITH LINK .......... .
2-38
PAPER TRAY. . . . . . . . . . . . . . . . . .
2-40
PAPER GUIDES . . . . . . . . . . . . . . . .
2-42
1
GENERAL
1.01
This part covers disassembly /reassembly
procedures for the Pedestal Based or Table-
43 Printer.
1.02 The printer is not considered a field
replaceable item. Any trouble can be
corrected by adjustments or by replacement with
maintenance spares.
1.03 Procedures are provided to remove individ­
ual assemblies and parts and are intended
to directly access any assembly or part, insofar
as possible, without total disassembly of the unit.
1.04 When removing a subassembly or part
from the printer, follow the removal
procedure and note the sequence of removal to
enable proper reassembly. For reassembly,
reverse the procedure except where different
instructions are given. Perform any adjustments
indicated see Page
2-6.
1.05
Disassembly of printer parts except the
print head will require the removal of
the set housing and rear frame. Refer to Tele­
printer Disassembly /Reassembly, Page
for
set housing and rear frame removal and replace­
ment procedures.
1.06
Disassembly of the printer motors will
require the removal of the logic cars}.
1.07 Disassembly of the printer lead screw,
carriage with post assembly, lead screw
nut, and collar with link will require the removal
of the operator console.
1.08 After replacing printer parts, refer to the
lubrication procedures Page and
lubricate any parts requiring lubrication.
1.09 Some parts that are not listed in the parts
sections are shown as necessary
to the
disassembly procedures such as screws and ring
retainers, etc. These parts are common to other
Teletype Corporation product lines and if needed
may already be available in field repair kits or can
be ordered.
1.10
All part numbers shown in this manual
are Teletype Corporation part numbers.
1.11
Reference in the procedures to left and
right, up or down, and top or bottom,
etc, refer to the printer in its normal operating
position.