Teletype 14 Manual

BULLETIN 127B
ADJUSTMENTS AND LUBRICATION
MODEL 14
TYPE BAR TAPE PR INTER
FP, FB, FK
TELETYPE®
BULLET IN 127B
SUBSIDIARY OF We5r~rn Electric Company INC.
CHICAGO, ILLINOIS, u. S. A.
Copyright 1936 and 1946 by Teletype Corporation
Printed-in U.S.A.

127U

127B
MODEL 14 SENDING- RECEIVING TAPE PRINTER
(
LESS COVER )

12713
MODEL 14 RECEIVING-ONLY TAPE PRINTER
(.LESS COVER)

A
127B
LIST OF EFFECT IVE PAGES
AUGUST, 1959
Supersedes
September, 1946 Issue
PAGE
CHANG EIN EFFECT
Title Page
Original
A to E Original
1 to 41 Original
The above Iist indicates the effective pages as of the date of
issue. Upon receipt of change pages, insert them numerically and dis-
card any superseded pages.
ORIGINAL

127B
CONTENTS
Paragraph Page
1. GENERAL ----------------------------------------------------------------------
1.a. Adjustment --~------------------------------------------------------------
1. b. Spring Tensions -------------------------------------------------------------
1. c. Motor Speed Adjustment -----------------------------------------------------
1.d. Receiving Range Adjustment --------------------------------------------------
1. e. Pulling Magnet Selector -----------------------------------------------------
2. ADJUST ME NTS---------------------,;.-------------------------------------- ------- 2
2.a. Typing Unit---------------------------------------------------------------- 2
2.a.(60) Bell and Break Contact Mechanism Adjustment --------------------------- 14
2. a. (60) (a) Double Contact Mechanism ------------------------------------- 14
2. a. (60)(a)2. Bell Hammer Adjustment---------------------------------- 14
2.a.(60)(a)5. Break Signal Contact Spring Adjustment -------------------- 14
2. a. (60)(a)3. Contact Mounting Screws Adjustment----------------------- 14
2. a. (60)(a)4. Contact Springs Adjustment ------------------------------- 14
2.a. (60)(a)1. Detent Arm Spring Tension ------------------------------- 14
2. a. (60)(b) Single Contact Mechanism ------------------------------------- 14
2. a. (60)(b)1. Contact Springs Adjustment for Single Contact Mechanism. ---- 14
2.a. (56) Bell Hammer Eccentric Screw Adjustment-------------------------------- 13
2.a. (22) Carriage Bracket Locating Plate. --------------------------------------- 10
2.a. (32) Carriage Extension Adjustment----------------------------------------- 11
2. a. (23) Carriage Locking Pawl Post Adjustment --------------------------------- 10
2. a. (30) Carriage Locking Pawl Spring Tension ---------------------------------- 11
2.0. (29) Carriage Return Spring Tension ---------------------------------------- 10
2.a. (14) Function Bar Bracket Plates Adjustment -------------~------_r----------- 9
2.a.(8) Holding Magnet Selector Mechanism Adjustments-------------------------- 5
2.a. (8)(a) Armature Pivot Screw Adjustment --------------------------------- 5
2. a. (8)(1) Armature Spring Tension Adjustment ------------------------------- 7
2.a.(8)(f) Locking Lever Spring
Tension------------------------------------- 6
2.a. (8)(e) Locking Wedge Adjustment -------------------------------------- 6
2.a. (8)(d) Selector Arm Bracket Adjustment --------------------------------- 5
2.
a. (8)(m) Selector Arm Operating Screw Adjustment ------------------------- 7
2.a.(8)(c) Selector Arm Pivot Screw Adjustment ----------------------------- 5
2.a. (8)(n) Selector Arm Spring Tension -----------------------------------..;,- 7
2. a. (8)(g) Selector Arm Stop Detent Adjustment------------------------------ 6
2.a.(8)(h) Selector
Arm Stop Detent Spring Tension--------------------------- 6
2.a.(8)(i) Selector Lever Spring Tension ------------------------------------ 6
2. a. (8)(b) Selector Magnet Adjustment ------------------------------------- 5
2. a. (8)(k) Selector Magnet Bracket Adjustment ------------------------------ 6
2. a. (8)(j) Selector Magnet Bracket Position Adjustment ----------------------- 6
2. a. (8)(r) Selector Stop Arm and Stop Lever Engagement Adjustment ------------ 7
2. a. (8)(0) Stop Lever Eccentric Screw Adjustment ---------------------------- 7
2.a.(8)(q) Stop Lever Spring Tension
--------------------------------------- 7
2. a. (8)(p) Trip Latch Spring Compression --.--------------------------------. 7
2.
a. (8)(s) Trip-Off Screw Adjustment--------------------------------------- 8
2. a. (54) Left Function Pull Bar Spring Bracket Adjustment ------------------------- 13
2. a. (41) Left Ribbon Reverse Arm Shaft Adjustment ------------------------------- 10
2. a. (24) Left Tape Guide Adjustment ------------------------------------------ 10
2.a.(18) Main Bail Adjusting Screw Adjustment --------------------------------..;,- 10
2.a.(58) Main Bail Cam Clutch Torque ----------------------------------------- 13
2.a. (16) Main Bai I Guide Post Adjustment -------------------------------------- 9
2. a. (2) Main Shaft Adjustment ----------------------------------------------- 2
2.a. (5) Main Shaft Clutch Spring Tension -------------------------------,.;------- 2
2. a. (3) Main Shaft Clutch Throwout Lever Adjustment ---------------------------- 2
2. a. (4) Main Shaft Clutch Throwout Lever Spring Tension ------------------------- 2
2.a.(61) Mechanical End-Of-Line Indicator Adjustment -------------------------- 14
2.a.(61)(h) Cam Lever Spring Tension -------------------------------------- 15
ORIGINAL B

127B
Paragraph Page
2.a. (61)(c) Contact Bracket Adjustment ---------------------------------- 14
2. a. (61)(g) Feed Pawl Spring Adjustment ---------------------------------- 14
2. a. (61)(b) Lamp Contact Adjustment ---:.--------------------------------- 14
2. a. (61)(0 Release Bai ISpring Tension------------------------------------ 15
2. a. (61)(d) Worm Follower Adjustment ------------------------------------ 14
2.a.(61)(e) Worm Follower Spring Tension --------------------------------- 15
2.a.(61)(a) Worm Shaft End Play ---------------------------------------- 14
2.a.(63) Mechanical Motor Control Mechanism On Upper Case "H" Adjustments---- 15
2
.• a.(63)(h) Contact Lever Adjusting Screw Adjustment ---------------------- 16
2.a. (63)(a) Contact Lever Bracket Adjustment------------------------------ 15
2. a. (63)(d) Contact Lever Spring Tension---------------------------------- 15
2.a.(63)(b) Latch Lever Bracket Extension Adjustment ----------------------- 15
2.a.(63)(c) Latch Lever Extension Adjustment------------------------------ 15
2.a.(63)(e) Latch Lever Spring Tension ----------------------------------- 15
2.a. (63)(i) Main Bail Spring Adjustment----------------------------------- 16
2.a. (63)(g) Motor Control Contacts Adjustments ---------------------------- 16
2.a. (63)(0 Operating Lever Spring Tension -------------------------------- 16
2. a. (62) Mechanism to Prevent Printing and Spacing on Lower Blank Adjustments---- 15
2. a. (62) (b) Space Suppression Lever Adjustment ---------------------------- 15
2. a. (62)(a) Space Suppression Lever Stop Arm Adjustment-------------------- 15
2. a. (6) Motor Position Adjustment-------------------------------------------- 2
2.a.(65) Positive CarriQge Shift Mechanism Adjustment-------------------------- 16
2.a.(65)(d) Carriage Capstan Nuts Adjustment----------------------------- 17
2.a.(65)(c) Carriage Locking Toe Adjustment ------------------------------ 16
2.a. (65)(1) Figures Locking Pawl Spring Tension ---------------------------- 17
2.a. (65) (b) Figures Stop Screw Adjustment--------------------------------- 16
2.a. (65) (a) Locking Pawl Post ------------------------------------------- 16
2.a.(65)(e) Shift Plate ------------------------------------------------- 17
2. a. (65)(0 Shift Plate Eccentric ----------------------------------------- 17
2.a.(65)(h) Shift Plate Eccentric (Units Equipped With '84584 Release Pull Bar)- 17
2.a.(65)(g) Shift Plate (Units Equipped With #84584 Release Pull Bar) --------- 17
2.a.(17) Pull Bar Guide Adjustment ------------------------------------------ 9
2. a. (35) Pull Bar Lock-out Lever Adjustment ---------------------------------- 11
2. a. (15) Pull Bar Springs Tension--------------------------------------------- 9
2.a.(7) Pulling Magnet Selector Mechanism Adjustments------------------------- 2
2. a. (7)(h) Armature Locking Lever Spring Tension -------------------------- 4
2. a. (7)(g) Armature Locking Wedge Adjustment ---------------------------- 4
2.a. (7) (f) Armature Stops Adjustment ------------------------------------- 4
2.a.(7)(m) Armature
Trlp-off Eccentric Screw Adjustment ------------------- 5
2.a.(7)(0) Magnet Bracket Adjustment
------------------------------------ 5
2. a. (7) (n) Magnet Coils Adj ustment -------------------------------------- 5
2.a. (7) (c) Selector Armature Adjustment ----------------------------~----- 3
2. a. (7)(e) Selector Armature Bracket Adjustment --------------------------- 3
2. a. (7)(d) Selector Armature Bracket Link Adjustment ----------------------- 3
2. a. (7) (a) Selector Armature Bracket Link Friction Adjustment---------------- 2
2. a. (7)(b) Selector Lever Spring Tension ---------------------------------- 3
2.a. (7)(i) Stop Lever Eccentric Screw Adjustment--------------------------- 4
2.a.(7)(j) Stop Lever Spring Tension -------------------------------------- 4
2.a. (7)(1) Trip Latch Spring Compression ---------------------------------- 4
2. a. (64) Push Tape Feed Mechanism Adjustment -------------------------------- 16
2. a. (64)(b) Figures Stop Screw Adjustment -------------------------------- 16
2.a. (64)(a) Locking Pawl Post ------------------------------------------- 16
2.a.(64)(c) Tape Feed Roll Spring Tension --------------------------------- 16
2. a. (49) Ribbon Check Pawl Adjustment--------------------------------------- 13
2.a. (SO) Ribbon Check Pawl Spring Pressure ----------------------------------- 13
2.a.(12) Ribbon Feed Lever Spring Tension ------------------------------------ 9
2.a. (51) Ribbon Feed Pawl Adjustment ---------------------------------------- 13
2.a.(52) Ribbon Feed Pawl Spring Pressure AdJustment -------------------------- 13
2. a. (48) Ribbon Feed Shaft Detent Plunger Spring Compression ------------------- 13
2. a. (47) Ribbon Feed Shaft Safety Spring Compression -------------------------- 12
2. a. (36) Ribbon Guide AdJustment ------------------------------------------- 11
CORIGINAL

127B
Paragraph Page
2.a.(42) Ribbon Reverse Arm Shaft Adjustment ---------------------------------- 12
2.a.(43) Ribbon Reverse Arm Shaft Collar Adjustments---------------------------- 12
2.a.(45) Ribbon Reverse Arm Yield Spring Tension Adjustment--------------------- 12
2.a.(44) Ribbon Reverse Pawl Link Adjustments---------------------------------- 12
2. a. (39) Ribbon Spool Bracket Adjustment ----,;,--------------------------------- 12
2. a. (37) Ribbon Spool Cups Adjustment ---------------------------------------- 11
2. a. (46) Ribbon Spool Shaft Slot Adjustment ------------------------------------ 12
2. a. (40) Ribbon Spool Shaft Spring Compression Adjustment ----------------------- 12
2.a.(53) Right and Left Ribbon Reverse Pawls Spring Tension ---------------------- 13
2. a. (38) Right and Left· Ribbon Spool Shaft Gears Adjustments --------------------- 11
2.a.(55) Right Function Pull Bar Spring Bracket Adjustment ----------------------- 13
2. a. (.2$ Right Tape Guide Adjustment ----------------------------------------- 10
2.a.(59) Selector Clutch Torque ---------------------------------------------- 14
2.a. (1) Selector Separator Plate Adjustment ------------------------------------ 2
2. a. (33) Shift Rocker Adjustment---------------------------------------------- 11
2. a. (31) Shift Rocker Lever Post Adjustment ------------------------------------ 11
2.ao(28) Shift Rocker Post Adjustment------------------------------------------ 10
2.a. (57) Signal Bell Adjustment ---------------------------------------------- 13
2. a. (9) Spacer Detent and Spacer Detent Lever Spring Tension -------------------- 8
2.a. (10) Spacer Feed Pawl Spring Tension -------------------------------------- 8
20
a. (20) Spacer Locking Bail FingerAdjustment --------------------------------- 10
2.a.(13) Spacer Locking Bail Spring Tension------------------------------------ 9
2. a. (19) Spacer Locking Pawl Bracket Adjustment ------------------------------- 10
2.a. (21) Spacer Locking Pawl Springs Tension---------- .. ------------------------ 10
2.a. (11) Spacer Operating Lever Spring Tension--------------------------------- 9
2. a. (27) Tape Chute Adjustment---------------------------------------------- 10
2.a.(26) Tape Feed Roll Spring Tension ---------------------------------------- 10
',2.a. (34) Type Bar Removal--------------------------------------------------- 11
2. a. (66) Unshift On Space Pull Bar Blocking Mechanism ------------------------- 18
2. b. Keyboard Base Adjustments -------------------------------------------------- 18
2. b. (6) Bell Hammer Extension Stop Adjustment -------------------~------------- 18
2. b. (7) Bell Hammer Spring Tension ------------------------------------------- 18
2.b. (17) Clutch Spring Compression ------------------------------------------- 19
2. b. (16) Clutch Throwout Lever Adjustment------------------------------------- 19
2. bo (20) Clutch Throwout Lever Eccentric Adjustment ---------------------------- 19
2.b.(22) Clutch Throwout Lever Spring Tension---------------------------------- 19
2. b. (26) Control Relay Adjustments ------------------------------------------- 20
20 b. (4) Gear Guard Adjustment-----------------------~----------------------- 18
2.b. (19) Intermediate Pawl Eccentric Adjustment -------------------------------- 19
20 b. (18) Lock Loop Roller Adjustment------------------------------------------ 19
2.b.(10) Lock Loop Spring Tension -------------------------------------------- 18
2. b. (12) Locking Lever Shaft Adjustment --------------------------------------- 18
2. b. (13) Locking Lever Travel ------~----------------------------------------- 18
2. bo (9) Locking Pawl Spring Tension------------------------------------------- 18
2. b. (27) Mechanical Motor Control Mechanism Adjustment ----------------------- 21
2. b. (27) (e) Armature Stop Adjustment-------------------------------------- 21
2. b. (27)(1) Inner Contact Assembly Adjustment ------------------------------ 21
2. b. (27)(f) Latch Backstop Screw Adjustment ------------------------------- 21
2.b.(27)(i) Latch Spring Tension ------------------------------------------ 21
2. b. (27)(k) Outer Contact Assembly Adjustment ----------------------------- 21
20b. (27) (h) Start Magnet Armature Spring Tension --------------------------- 21
2. b. (27) (c) Start Magnet Bracket Adjustment-------------------------------- 21
2. b. (27) (a) Start Magnet Core Adjustment ---------------------------------- 21
2.b.(27)(g) Stop Magnet Armature Spring Tension---------------------------- 21
2.b. (27) (d) Stop Magnet Bracket Adjustment -------------.;,------------------ 21
2.b. (27)(b) Stop Magnet Core Adjustment ---------------------------------- 21
2. b. (25) Repeat On "S" Mechanism Adjustment --------------------------------- 20
2.
b. (25) (a) Repeat Space Rod Spring Tension ------------------------------- 20
2. b. (25) (b) Repeat Yoke Lug Adjustment ----------------------------------- 20
ORIGINAL D

127B
Paragraph Page
2.b.(24) Repeat On Space' Mechanism Adjustments ------------------------------ 20
2.b. (24)(d) Jack Spring Tension ------------------------------------------ 20
2. b. (24)(f) Key Lever Spring Adjustment ----------------------------------- 20
2. b. (24)(a) Repeat Space Rod Adjustment ---------------------------------- 20
2. b.(24)(b) Repeat Space Rod Bracket Adjustment --------------------------- 20
2. b. (24)(c) Tape Guide Tube Adjustment----------------------------------- 20
2.b.(24)(e) Typing Unit Slip Connections Spring Tension Adjustment ----------- 20
2.b.(2) Tape Lever Adjusting Clamp Adjustment--------------------------------- 18
2.b.(8) Tape Lever Spring Tension -------------------------------------------- 18
2. c. (5) Tape-Out Bell Adjustment -------------------------------------------- 18
2. b. (11) Transmitting Cam Cyl inder Adjustment --------------------------------- 18
2.b. (14) Transmitting Contacts Gap Adjustment --------------------------------- 18
2. b. (15) Transmitting Contacts Spring Pressure----------------------------------- 19
2. b. (21) Trip-Off Pawl Eccentric Adjustment ----------------------------------- 19
2. b. (23) Trip-Off Pawl Spring Tension----------------------------------------- 19
2. b. (3) Trip-Off Pawl Stop Plate Adjustment ----------------------------------- 18
2.b.(1) Universal Bar Pilot Screws Adjustment ---------------------------------- 18
2. c. Governor Adjustments ------------------------------------------------------ 22
2. c. (10) Governor Adjusting Bracket Adjustment -------------------------------- 23
2. c. (6) Governor Brush Position ---------------------------------------------- 22
2. c. (8) Governor Brush Spring Plate Bracket Adjustment-------------------------- 23
2. c. (9) Governor Brush Spring Pressure ---------------------------------------- 23
2.c. (9)(a) Inner Disc Brush Spring----------------------------------------- 23
2. c. (9)(b) Outer Disc Brush Spring ---------------------------------------- 23
2. c. (3) Governor Brush Spring Requirement------------------------------------- 22
2. c. (4) Governor Shims Adjustment ------------------------------------------- 22
2. c. (7) Inner and Outer Disc Contact Spring Adjustment ------------------------- 22
2.c.(5) Speed Adjustment Lever Stop Plate Adjustment--------------------------- 22
2.c. (2) Speed Adjusting Wheel Friction Washer Spring Tension Adjustment ---------- 22
2. d. Synchronous Motors -------------------------------------------------------- 23
2.d. (1) Starting Switch Adjustments ------------------------------------------- 23
3. LUBR ICAT 10N ------------------------------------------------------------------ 24
3.a. Typing Unlt--------------------------------------------------------------- 24
3.a. (46) Bell and Break Contact Mechanism ------------------------------------ 25
3.a. (47) Mechanical End-Of-Line Indicator Mechanism-------------------------- 25
3.a. (49) Motor Control On Upper Case II H" Mechanism -------------------------- 25
3.a. (50) Push Tape Feed----------------------------------------------------- 25
3.a.(48) Suppression Of Printing and Spacing On Lower Case Of BLANK Mechanism - 25
3.b. Keyboard----------------------------------------------------------------- 25
3. b. (21) Motor Control On Upper Case II H II ------------------------------------ 26
EORIGINAL

127B
ADJUSTMENTS AND LUBRICATION
1. GENERAL
1. a. ADJUST ME NTS -This bulletin covers require-
ments and adjusting procedures for the maintenance
of Model 14 Printers. Adjustments are arranged in a
sequence
that would be followed if acomplete read-
justmentof aunit were undertaken. In following such
aprocedure, parts or assemblies which are removed
to
facilitate adjustment should not be replaced until
all
other adjustments are made which would befacili-
tated by the removal of these parts. If one adjustment
is changed, related adjustments should be checked.
l.b. SPRING TENSIONS -The spring tension
values
indicated in this bulletin are scale readings
which should be
obtained when Teletype scales are
used as
specified. Springs which do not meet the re-
quirements specified and for which no adjusting pro-
cedure is given should be replaced by new springs.
Ordering information may be
obtained from the T ele-
type parts bulletin.
Before proceeding with any adjustmentor ten-
sion, read the applicable portion of the text carefully.
After the adjustment is completed, be sure to tighten
any screws or nuts which may have been loosened.
If apart that is mounted on shims is to be dismantled,
the number of shims used at each of its mounting screws
should benoted
so that the same shim pile-ups can be
replaced when the part is remounted.
NOTE: There is apossibility
of setting the
speed incorrectly, due to getting a
speedmultiple;
i.e., thespeedcould
be half the desired speed, or some
multiple
thereof, even though the
spots appear stationary when viewed
through
the shutters on the tuning
fork. This should
be kept in mind if
trouble is experienced in the oper-
ation of the unit.
When increasingordecreasing the motorspeed,
the speed adjusting lever or
the governor adjusting
bracket, respectively, should be momentarily de-
pressed. (See Figure 85 for location of parts).
1.d. RECEIVING RANGE ADJUSTMENT -Mounted
on
the selector above the end of the main shaft is a
range finder assembly which is used for
the purpose of
orientating the selector to incoming signals.
Before proceeding to measure the
receiving
range on aunit equipped with apulling magnet se-
lector, turn the selector armature spring adjusting
screw
to aposition where it wi II require 6to 6-3/8
ozs. * to stretch the armature spring to its position
length. Then transmit RY (the letters Rand Ysent
alternately) to the printer continually while the re-
ceiving range is being determined. This procedure is
described in the following paragraphs.
1.e. PULLING MAG NET SELECTOR
NOTE: If facilities for transmitting biased
test signals to
the receiving unit are
available, the index arm should be
set
at the optimum setting for the I:e-
ception of biased signals.
While
RY is being received, loosen the index
arm thumb screw and shift the index arm of the range
finder toward 0untiIerrors appear in
the copy. Then
move
the arm backslowly untiIerrors no longer appear;
at least 72 characters should be received without
error. This position indicates one limit of the orien-
tation range. Note the position of the index arm on
the
scale. Determine the opposite end of the receiv-
ing range by repeating the foregoing procedure with
the index arm neartheopposite end of the scale. After
the two limits of the receiving range have been found,
set the index
arm of the range scale midway between
these two points.
Care should be exercised in removing or in-
stalling the cover to avoid damaging parts in close
proximity.
As aprecaution, raise or lower the cover
slowly.with avertical movement.
Lc. MOTOR SPEED ADJUSTMENT -110 volt 50
or 60
cycle synchronous motors may be used on 110
volt 50 or 60 cycle alternating current power supply
unless
the frequency varies more than plus or minus
.75%; in which case series wound governed motors
shouId be used. When governed motors are used, a
speed indicating fork
is required for the purpose of
checking the motor speed. The fork is equipped with
shutters
attached to the end ofthe tines. The governor
is equipped with a target having alternate black and
white spots (Figure 85).
To check the speed, the target should be well
illuminated. Tap the fork gently to make it vibrate.
Hold thefork so that the shutters are close to the eye
and view the
target through the openings in the
shutters.
If the motor is running at the correct speed,
the target wi II appear stationary. If the motor speed
is too fast, the target will appear to be moving in the
direction of rotation; if too slow, in the opposite
di-
rection.
ORIGINAL
*
If unit is equipped with aholding
magnet
selector See Page 7