Teletype 33 Adjustments

TELETYPE CORPORATION
Skokie, Illinois, U.S.A.
CONTENTS
1. GENERAL.
2. BASIC UNIT
Backspace lever spring
Chad chute extension .
Codebar ext.ension springs
Control detent lever spring
Control pushbuttons
Detent lever spring ..
Drive link spring
Feed pawl spring . • .
Feed wheel ratchet and
pawl - final . . . . . . .
Feed wheel ratchet and pawl -
preliminary . . . . . . .
Pawl and lever springs . .
Pawl upstop assembly -
final .......... .
Pawl upstop assembly -
preliminary . . . . . .
Punch block assembly
Punch penetration
Sensing lever springs
Stripper bail spring .
Stripp~r bail upstop .
Tape bias spring . . .
Tape guide compression
spring ........ .
Tape guide t.ension spring
Tape nudger . . . . .
Tape punch drive . . . .
Ten characters per inch .
3. VARIATIONS TO THE BASIC
UNIT ............ .
Automatic Control Mechanisms
Automatic ON . . . . . .
Automatic punch interlock
spring .......... .
Control bail assembly . . .
Control bail assembly spring
Feed wheel ratchet and pawl
gap ...... .
Latch bail gap . .
Latch bail spring
Lever overtravel .
SECTION 574-125-700TC
Issue 7, January 1974
33 TAPE PUNCH
ADJUSTMENTS
PAGE
1
5
17
14
14
18
18
16
19
16
11
6
15
10
5
19
9
14
15
7
12
18
17
5
8
13
20
26
27
20
25
22
24
22
21
CONTENTS
LOCKON .....
ON mechanism return
spring ....... .
Sensing lever and bail
gap ........ .
Remote Control Solenoid
Drive link spring
Solenoid bail spring . . .
Solenoid bail upstop post
Solenoid position . . .
Stripper bail bias . . .
Stripper bail bias spring
Miscellaneous
Folded tape guide
1. GENERAL
PAGE
25
27
23
7
31
30
30
29
28.J
31
32
1.01 This section provides adjustment and
maintenance information for the 33
tape punch. It is reissued to include engineering
7
changes and to add adjustments for an optional
remote control solenoid feature. Marginal arrows
I
indicat.e the changes.
--1
1.02 Figure 1 shows the tape punch area
where the punch adjustments and
spring t.ension checks are made.
1.03 In the adjustments covered in this
section, location of clearances, position
of parts, and point and angle of scale applications
are illustrated by line drawings. Requirements and
procedures are set forth in several texts that
accompany the line drawings. Required tools are
included in TP185830 Maintenance Tool Kit and
are listed in Section 570-005-S00TC.
1.04 The sequence in which the adjustments
appear should be followed when a
complete readjustment of the tape punch is
undertaken. No adjustment should be undertaken
without completely understanding the procedure
and the requirements. Read a procedure all the
way through before making an adjustment or
checking a spring tension.
©
1964, 1965, and 1974 by Teletype Corporation
All rights reserved
Printed in U.S.A.
Page 1