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Teletype 28 Installation Manual

Printing telegraph systems
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  • Page 3 2268 LIST OF EFFECTIVE PAGES APRIL 1955 PAGE NUMBERS CHANGE IN EFFECT CHANGE I TITLE PAGE EFFECTIVE PAGE CHANGE I A TO D ORIGINAL 1-0 TO 2-18 ORIGINAL 2-19 CHANGE I 2-20 TO 2-23 ORIGINAL 2-24 CHANGE I 2-25 TO 3-30 ORIGINAL THIS PAGE LISTS THE EFFECTIVE PAGES IN THE BULLETIN AND MUST BE REPLACED WHEN CHANGES ARE MADE.

  • Page 4: Table Of Contents

    226B TABLE OF CONTENTS SECTION I INSTALLATION Page General Procedure SECTION II ADJUSTMENTS 1. General .•..2. Adjustments a. General b. Manual Selection of Characters or Functions c. Instructions Mounting Typing Unit 2-65 Removing Code Bar Assembly 2-38 Removing Code Bar Shift Mechanism ....2-16 Removing Front Plate Assembly ..
  • Page 5 Ribbon Reverse Spur Gear ....2-47 Right Margin .. 2-42 Ratchet Shaft Left Bracket ..2-26 Right Vertical Positioning Lever Eccentric Stud ..2-28 Selector Armature Selector Magnet Bracket Selector Coutch Stop Arm ....2-11 Shift Linkage 2-44...
  • Page 6 226B TABLE OF CONTENTS SECTION II Page g. Spring Tensions - Typer Automatic Carriage Return -Line Feed Bell Crank 2-41 Automatic Carriage Return - Line Feed Blocking Slide 2-53 Breaker Slide Bail .. 2-27 Carriage Return Latch Bail ....2-38 Clutch Latch Lever (Except Selector) 2-17...
  • Page 7 Trip Shaft Lever ..2-17 Type Box _ C arriage Roller Arm ....2-43 Type Pallet .. 2-46 Vertical Positioning Lever 2-28 Vertical Positioning Lock Lever 2-29 3 . Selector Receiving M a rgin Adjustment ..2-70 SECTION III LUBRICATION 1.

  • Page 8: A. General

    INST ALLATION 1. INSTALLATION a. GENERAL DESCRIPTION The Model 28 printer set with Station Selecting Mechanism (Stunt Case) con­ sists of the following basic units: Apparatus Cabinet; Receiving only Base; Motor Unit; Set of Gears; and an Electrical Service Assembly.
  • Page 9 226B CAUTION A good ground is important for satisfactory operation of the equipment, The ground screw is located at the extreme right of the cabinet above the terminal board. 0.060 ELECTRICAL SERVICE UNIT The unit is wired for ampere operation at 0.020 the factory.
  • Page 10 226B SECTION ADJUSTMENTS 1. GENERAL model receiving only printer with station selection (Stunt Case) feature is arranged for operation in a country wide communication system which is divided into a number of area Networks. The printers in each area are opera-. ting in a stand-by condition (Motor Running) with printing suppressed until the assigned call code or codes is received.

  • Page 11: B. Manual Selection Of Characters Or Functions

    226B 2. ADJUSTMENTS a. GENERAL The sequence in which the following adjustments are arranged takes into consideration the normal approach to the mechanism and the fact that a change in one adjustment may affect others. Adjustments should not be disturbed unnecessarily.
  • Page 13 226B BASE INSTRUCTIONS FOR REMOVING TYPING UNIT FROM CABINET REFER TO FOR DISASSEMBLY PROCEDURE INTERMEDIATE GEAR BRACKfT DRIVEN GEAR AND THE TYPER DRIVING GEAR AT THE POINT WHERE BACKLASH IS THE LEAST. TO ADJUST POSITION THE COMPLETE INTERMEDIATE GEAR MECHANISM BRACKET BY UTILIZING THE ADJUSTING SLOTS WITH THE THREE HEXAGON HEAD SCREWS LOSSENED.
  • Page 14 226B CLAMP SCREW OILER SYNCHRONOUS MOTOR POSITIONING REQUIREMENT TWO OILERS SHOULD BE UPWARD AND APPROXIMATELY EQUIDISTANT FROM A VERTICAL LINE THROUGH THE MOTOR SHAFT TO ADJUST POSITION THE MOTOR WITH THE TWO CLAMP SCREWS LOOSENED. FIGURE SYNCHRONOUS MOTOR CONTACT LEVER CONTACT PLUNGER MARGI N INDICA TOR SPRING TENSIO N REQUIREMENT...
  • Page 20 226B PUSH LEVER RESET BAIL (RIGHT SIDE VIEW) SPACING LOCK LEVER PUSH LEVER RESET BAIL SPRING TENSION REQUIREMENT LATCH LEVER PUSH LEVER BAIL ON LOW PART OF CAM. 32 OZ. SCALE APPLIED TO RESET BAIL MIN. OZS. MAX. OZS. TO MOVE BAIL FROM CAM. SELECTOR C LUTCH LATCH LEVER SPRING REQUIREMENT...
  • Page 21 226B RANGE FINDER KNOB PHASING REQUIREMENT WITH RANGE FINDER KNOB TURNED TO EITHER END OF SELECTOR CLUTCH STOP ARM RACK, ZERO MARK ON SCALE SHOULD BE IN LINE WITH REQUIREMENT SCRIBED LINE ON RANGE FINDER PLATE- 3 POINTS. RANGE SCALE SET AT 60. SELECTOR CLUTCH TO PHASE DISENGAGED.

  • Page 24: Removing Print Carriage

    226B FRONT CODE BAR INTERMEDIATE ARM BACKSTOP BRACKET REQUIREMENT SELECTOR PUSH LEVERS STRIPPED. CLEARANCE BETWEEN FRONT EDGE OF INNER STEP OF SHIFT BAR AND THE FRONT CODE BAR SHIFT TRANSFER LEVERS LEVER WHEN THE PLAY IN THE PARTS IS TAKEN UP TO MAKE THE CLEARANCE MAXIMUM MIN.
  • Page 27 226B CLAMP SCREW TRIP SHAFT CODE BAR CLUTCH CODE BAR CLUTCH TRIP LEVER CODE BAR CLUTCH LATCH LEVER STOP LUG (REAR VIEW) (LEFT SIDE VIEW) CLUTCH LATCH LEVER SPRING (EXCEPT SELECTOR) ---' CODE BAR CLUTCH TRIP LEVER REQUIREMENT REQUIREMENT CLUTCH TURNED TO STOP POSITION BUT SELECTOR CLUTCH AND CODE BAR CLUTCH WITH LATCH LEVER NOT LATCHED.
  • Page 28 226B CLUTCH TRIP LEVER REQU IREMENT CODE BAR CLUTCH AND FUNCTION CLUTCH DISENGAGED. FUNCTION CLUTCH TRIP LEVER SHOULD ENGAGE THE CLUTCH SHOE LEVER BY THE FULL THICKNESS OF THE SHOE LEVER. CHECK AT LUG WITH LEAST ENG AGEMENT TO ADJUST POSITION THE TRIP LEVER ON ITS SHAFT WITH ITS CLAMP SCREWS LO OSENED.
  • Page 29 2268 SPACING CLUTCH LATCH LEVER SET COLLAR TRIP SHAFT COLLAR MAIN SHAFT LINE FEED CLUTCH REAR VIEW CLUTCH TRIP SHAFT SET COLLARS REQUIREMENT THE SPACING CLUTCH LATCH LEVER SHOULD HAVE SOME SIDE PLAY. MAX. 0.008 INCH TO ADJUST POSITION THE SPACING CLUTCH LATCH LEVER SET COLLAR. APPROXIMATE ALIGNMENT OF RIGHT END OF STOP EXTENSIONS ON TRIP LEVER AND SHOE LEVER TO ADJUST...
  • Page 30 226B SPACING CLUTCH TRIP LEVER REQUIREMENT SPACING AND TYPE BOX CLUTCHES DISENGAGED. TRIP LEVER ARM IN ITS UPWARD POSITION ADJUSTING SCREW TRIP LEVER SHOULD BE APPROXIMATELY SPACING CLUTCH FLUSH WITH OUTER SURFACE OF THE SHOE TRIP LEVER LEVER OR UNDER FLUSH BY NOT MORE THAN Y2 THE THICKNESS OF THE SHOE LEVER.
  • Page 31 226B A. TYPE BOX CLUTCH TRIP LEVER TYPE-BOX CLUTCH ECCENTRIC POST REQUIREMENT TYPE BOX CLUTCH DISENGAGED. TRIP LEVER SHOULD ENGAGE THE CLUTCH SHOE LEVER BY THE FULL THICKNESS OF THE SHOE LEVER TO ADJUST POSITION THE TRIP LEVER ECCENTRIC POST. TRIP LEVER C.
  • Page 32 2268 TYPE BOX CLUTCH TRIP LEVER REQUIREMENT (See Note 3 Page 2-1) CLUTCH TRIP SHAFT CAM FOLLOWER ROLLER (SEE FIG. 17 ) ON THE LOWEST SUR· FACE OF CAM (LOCATED ON CODE BAR CLUTCH). CLEARANCE BETWEEN INNER FACE OF TYPE BOX CLUTCH TRIP LEVER CLAMP SCREW AND THE CLUTCH DISK STOP LUG.
  • Page 33 226B REQUIREMENT CLUTCH ENGAGED. HOLD CAM DISK CLUTCH SHOE LEVER TO PREVENT TURNING. SPRING SCALE PULLED AT TANGENT TO CLUTCH. MIN. 15 OZS. ONE·STOP CLUTCHES MAX. 20 OZS. CAM DISK MIN. 16 OZS. MULTIPLE-STOP CLUTCHES MAX. 22 OZS. TO MOVE THE SHOE LEVER IN CONTACT WITH THE STOP LUG.
  • Page 34 2268 NOTE: TO CHECK REQUIREMENT ( A,B, and D), SET FUNCTION CLUTCH IN STOP POSITION AND ALL CODE BARS TO THE RIGHT OFF LINE STUNT SHIFT SOLENotD A STUNT CASE CODE BAR SHIFT MECHANISM REQUIREMENT WITH LATCH FUNCTION LEVER ON ITS LOWER RELEASING LATCH, NOTCH IN SUPPRESSION CODE BAR SHOULD ALIGN WITH NOTCHES, IN OTHeR CODE BARS TO ADJUST...
  • Page 35 226B REQUIREMENT SPACING CLUTCH DISENGAGED. INDEX LINE ON THE SPACING PAWL SHOULD BE BETWEEN THE TWO LINES ON THE PAWL RETAINING WASHER. TO ADJUST REMOVE THE MOUNTING SCREW FROM THE SPACING SHAFT GEAR. HOLD THE PAWLS IN ALIGNMENT AND ENGAGE THE SPACING SHAFT GEAR RETAINING WASHER WITH THE CLUTCH GEAR AT A POINT WHERE THE SPACING SHAFT GEAR...
  • Page 36 226B LINE FEED CLUTCH PHASING REQUIREMENT LINE FEED CLUTCH IN STOP POSITION. BOTH LINE FEED BARS SHOULD eNGAGE THE TEETH OF THE LINE FEED SPUR GEAR. TO ADJUST DISENGAGE LINE FEED CLUTCH. LOOSEN ASSEMBLY BEARING POST AND MESH LINE FEED ECCENTRIC SPUR GEAR WITH CLUTCH GEAR SO THAT BOTH BARS ARE ENGAGED.
  • Page 37 AFTER MAKING RELATED ADJUSTMENTS ANY CHANGE IN THIS ADJUSTMENT WILL REQUIRE A RECHECKING OF THE FOLLOWING ADJUSTMENTS: HORIZONTAL POSITIONING DRIVE LINKAGE (FIGURE - 32 ), RIGHT VERTICAL POSITIONING 28 ), LEFT VERTICAL POSITIONING LEVER LEVER ECCENTRIC STUD (FIGURE ECCENTRIC STUD (FIGURE 29 ), VERTICAL POSITIONING LOCK L EVER (FIGURE -35 ), RIBBON FEED LEVER STOP BRACKET (FIGURE -4 7 ), FUNCTION STRIPPER BLADE ARMS (FIGURE -55 ), SPACING TRIP·...
  • Page 39 226B VERTICAL POSITIONlN� LOCK LEVER SPRING TENSION REQUIREMENT TYPE BOX CLUTCH DISENGAGED MIN. 2 OZS. MAX. OZS. TO START THE LOCK LEVER MOVING CHECK BOTH RIGHT AND LEFT SPRINGS. VERTICAL POSITIONING LOCK LEVER SPRING REQUIREMENT THE RIGHT AND LEFT VERTICAL POSITIONING LEVERS SHOULD BUCKLE EQUALLY WITHIN 0.006 INCH.
  • Page 41 226B SPACING TRIP LEVER ARM IN ITS UPWARD POSITION. TYPE BOX CLUTCH ROTATED THROUGH APPROXIMATELY ONE-HALF OF ITS CYCLE. ALL FUNCTION PAWLS DISENGAGED FROM THEIR FUNCTION BAR. CLEARANCE BETWEEN TOP SURFACE OF THE TRIP LEVER ARM SPACING TRIP LEVER EXTENSION AND THE SHOULDER ON THE SPACING TRIP LEVER.
  • Page 42 226 B MARKING �-------- � -:_-_ �---::',, �� -- >� DETENT SPRING ,• ---//_______ REQUIREMENT WITH SLIDE IN LEFT­ HAND POSITION. SCALE REVERSING SLIDE HOOKED IN UPPER RIGHT­ HAND DETENT NOTCH. DETENT LEVER MIN. 3 OZS. MAX. 4 1/2 OZ. REVERSING SLIDE ADJUSTING STUD TO START THE DETENT MOVING...
  • Page 43 226B HORIZONTAL POSITIONING DRIVE LINKAGE ---- -- -- -- -- -- -- -- -- -- -- --­ REQUIREMENT TYPE BOX CLUTCH DISENGAGED. CODE BARS 5 AND 5 TO SPACING (RIGHT) CLEARANCE BETWEEN EACH SIDE OF CENTER HORIZONTAL STOP SLIDE AND DECELERATING SLIDES, ON SIDE WHERE KNEE LINK IS ST RAIGHT, SHOULD BE EQUAL (WITHIN 0.005 INCH ) MIN.

  • Page 44: Carriage Return Lever

    226B FUNCTION RESET BAIL SPRING TENSION RESET BAIL OPERATING ROLLERS REQUIREMENT MAX. 14 OZS. RESET BAIL BLADE aLADE MOUNTING scREws FUNCTION RESET BAIL BLADE ( See Note 3 Page 2-1) ( 1) REQUIREMENT CLEARANCE BETWEEN FRONT EDGE OF CARRIAGE RETURN AND INNER LINE FEED FUNCTION BARS AND EDGE OF RESET BAIL WHEN FUNCTION BARS ARE HELD IN THEIR EXTREME REAR POSITION MIN.
  • Page 45 226B INSTRUCTIONS FOR REMOVING FRONT PLATE ASSEMBLY NOTE--- REMOVE ONLY FOR SERVICING REMOVE TYPING UNIT FROM BASE (SEE P.3-2.REMOVE RETAINING RING FROM TYPE BOX CARRIAGE LINK RIGHT STUD AND DISENGAGE LINK FROM CARRIAGE (SEE FIG. 43 ). REMOVE TWO SCREWS WHICH SECURE HORIZONTAL MECHANISM ROCKER BRACKET TO ROCKER SHAFT.
  • Page 50 226B DASH POT VENT SCREW REQUIREMENT (See Note 3 Page 2-1) TYPE BOX CARRIAGE SHOULD RETURN FROM ANY LENGTH OF LINE WITHOUT BOUNCING WHEN THE PRINTER IS OPERATED UNDER POWER FROM AUTOMATIC TRANS- MISSION OF ONE CR AND ONE LF SIGNAL BETWEEN LINES AT ANY SPEED.
  • Page 51 2268 LEFT HAND MARGIN REQUIREMENT (FOR CHARACTER LINE) (See Note 3 Page 2-1 ) TYPE BOX CLUTCH DISENGAGED. SPACING DRUM IN RETURNED POSITION TYPE BOX SHIFTED TO THE LEITERS POSITION. CENTER OF THE LEIT ERS PRINT INDICATOR ON THE TYPE BOX SHOULD BE MIN.
  • Page 53 226B PRINT ING CARR IAGE WIRE ROPE PRINTING CARRIAGE TRACK PRINTING CARRIAGE LOWER ROLLER REQUIREMENT CARRIAGE WIRE ROPE CLAMP SCREWS LOOSENED. PLAY OF CARRIAGE ON ITS J Jj UPPER ROLLERS GUIDE RAIL SHOULD BE JJ J MINIMUM WITHOUT BIND THROUGHOUT FULL LENGTH OF GUIDE RAIL TO ADJUST ROTATE THE LOWER ROLLER ECCENTRIC WITH ITS NUT FRICTION TIGHT.
  • Page 54 226B TYPE BOX PRINTING HAMMER SHIFT LINKAGE Pag e 2-1) ( See Note REQ UIRE M ENT CARRIAGE NEAR MIDPOINT OF PLATEN . TYPE BOX IN POSITION TO PRINT "M". MANUALLY BUCKLE RIGHT SHIFT LINKAGE AND SHIFT TYPE BOX TO LEFT. THE OSCILLATOR RAIL PERIOD TYPE PALLET SHOULD BE APPROXIMATELY IN THE CENTER OF THE PRINT HAMMER WHEN...
  • Page 56 226B PRINTING HAMMER STOP BRACKET---- -- -- -- -. REQUIREMENT TYPE BOX, IN BLANK POSITION AND NEAR CENTER OF PLATEN. PRINTING BAIL IN ( See Note 3 Page 2-1} ITS DOWNWARD POSITION. PRINTING HAMMER HELD AGAINST ITS STOP WITH 8 OZS. OF PRESSURE, CLEARANCE BETWEEN PRINTING HAMMER AND DUMMY TYPE PALLET TYPE BOX ASSEMBLY MIN.
  • Page 57 226B RIBBON REVERSING LEVER - RIGHT RIBBON REVERSING LEVER -LEFT RIBBON REVERSE SPUR GEAR REQUIREMENT WHEN RIGHT REVERSING LEVER IS IN DETENT CAM MAXIMUM DOWNWARD POSITION, THE LEFT REVERSING LEVER SHOULD BE IN ITS MAXIMUM UPWARD POSITION. TO ADJUST LOOSEN THE SET SCREWS IN THE SET SCREW DETENT CAM.
  • Page 58 226B (1) REQUIREMENT (LEFT-HAND MECHANISM). LEFT REVERSING LEVER IN UPWARD POSITION. RIBBON MECHANISM IN UPPER POSITION {See Note 3 Page 2-1) RATCHET WHEEL HELD AGAINST THE DETENT LEVER. CLEARANCE BETWEEN THE FRONT FACE OF THE FEED LEVER AND THE SH. O ULDER OF A TOOTH ON THE RATCHET WHEEL MIN.
  • Page 59 226B RIBBON REVERSE SPRING TENSION REQUIREMENT MIN. 1/2 OZS. MA X. 3 OZS. TO START THE LEVER MOVING. CHECK BOTH RIGHT AND LEFT SPRINGS. RIBBON TENSION SPRING REQUIREMENT RIBBON RATCHET WHEEL POSITIONED SO THAT EACH DRIVING PIN IS TOWARD THE OUTSIDE OF THE SPOOL SHAFT IT SHOULD REQUIRE MIN.
  • Page 60 226B INSTRUCTIONS FOR REMOVING STUNT BOX ASSEMBLY NOTE - - - REMOVE ONLY FOR SERVICING REMOVE TYPING UNIT FROM BASE (SEE P.3-2). REMOVE THE STUNT BOX MOUNTING SCREWS AND DISCONNECT STRIPPER BAIL ARM (FIG. 55). SUDE UPPER END OF STRIPPER DRIVING LINK TO THE RIGHT (REAR VIEW) TO DISENGAGE LINK FROM STRIPPER BLADE DRIVING ARM.
  • Page 61 226B FUNCTION BAR POSITION FOR SEQUENTIAL SELECTION SLOT TYPING UNIT ARRANGEMENT RESPONDS TO AK . 153409 - 153438 153409 - 153438 153409 - 153438 153409 - 153438 STATJON SELECT CODE 152676- 152703 152676- 152703 152676 - 152703 STATION SELECT CODE 152676- 152703 152676- 152703 152676 - 152703...
  • Page 62 226B FUNCTION BAR SPRING TENSION ---- -- -- -- --, REQUIREMENT FUNCTION CLUTCH DISENGAGED. FUNCTION PAWL SPRING TENSION FUNCTION PAWL HELD AWAY. REQUIREMENT MIN. 2 1/20ZS. REAR END OF FUNCTION PAWL MAX. 3 1/2 OZS. RESTING ON FUNCTION BAR. TO START_ FUNCTION BAR MOVING MIN.
  • Page 64 226B FIGURES AND LETTERS CODE BAR SHIFT MECHANISM NOTE--- ROTATE FUNCTION CLUTCH UNTIL FUNCTION BARS ARE IN THEIR EXTREME REAR POSITION. ( 1) REQUIREMENT HOOK LETTERS FUNCTION PAWL OVER END OF FUNCTION BAR (FIGS. PAWL DISENGAGED). CLEARANCE BETWEEN LOWER GUIDE PLATE EXTENSION AND LETTERS SHIFT SLIDE. 0.015 INCH MIN.
  • Page 71 226B PAPER STRAIGHTENER LEVER SPRING TENSION REQUIREMENT MIN. 1 1/2 OZS. MAX. 4 OZS. TO START THE LEVER MOVING. PAPER STRAIGHTENER COLLAR -LEFT PAPER STRAIGHTENER COLLAR- RIGHT PAPER STRAIGHTENER SHAFT � ij[) PAPER STRAIGHTENER COLLAR REQUIREMENT LEFT COLLAR SPACED MIN. 9/32 INCH MAX.
  • Page 72 226B PAPER FINGER SHAFT PAPER FINGER - RIGHT {FRONT VIEW) PAPER FINGER ADJUSTMENT PLATEN REQUIREMENT PAPER THE PRESSURE END OF THE PAPER FINGERS SHOU LD OVERLAP THE PAPER FROM 3/8 I . N CH TO 1/2 INCH. TO ADJIJST POSITION THE PAPER FINGERS BY PRESSURE ROLLER LEVER SLIDING THEM ON THEIR SHAFT.
  • Page 73 226B CODE BAR DETENT SPRING TENSION NOTE CODE BAR DETENT UNLESS THERE IS REASON TO BELIEVE THAT THESE REQUIREMENT FRONT PLATE REMOVED. ALL CLUTCHES SPRINGS ARE CAUSING OPERATING FAILURE DO NOT DISENGAGED. SHIFT CODE BAR SHOULD CHECK THIS REQUIREMENT. DETENT EQUALLY (Gauge By Eye ) . REQUIREMENT ( EXCEPT SUPPRESSOR) TO ADJUST...
  • Page 74 2268 CONTACT PLUNGER BASe MARGIN INDICATOR LAMP REQUIREMENT OPERATING UNDER POWER. THE LAMP SHOULD ILLUMINATE ON THE DESIRED CHARACTER TO ADJUST SET THE TYPE BOX CARRIAGE TO PRINT THE DESIRED CHARACTER AND POSITION THE CAM DISK COUNTERCLOCKWISE ON THE SPRING DRUM WITH ITS THREE MOUNTING SCREWS LOOSENED.
  • Page 75 226B RIGHT SIDE OF KEYBOARD OR BASE TYPER MOUNTING SCREWS TYPER LOCATING STUDS MOUNTING TYPING UNIT ON KEYBOARD OR BASE REQUIREMENT WHEN PLACING THE TYPING UNIT ON THE BASE HOLD IT TIL TED SLIGHTLY TO THE RIGHT AND LOWER THE RIGHT END INTO ENGAGEMENT WITH THE RIGHT LOCATING STUD.
  • Page 78 2 26B (CABINET ADJUSTMENT CONTINUED) SMALL DOOR CATCH (1) REQUIREMENT WITH SMALL DOOR LATCHED, THE RUBBER GASKET SHOULD PRESS AGAINST THE LEDGE OF THE DOME AT ALL .POINTS. THE DOOR SHOULD BE FLUSH WITHIN 1/16 INCH WITH TOP SURFACE OF DOME. ( 2) REQUIREMENT WHEN DOOR IS RELEASED FROM ITS CATCH IT SHOULD SPRING OPEN AT LEAST l/21NCH.
  • Page 79 226B COVER MOUNT ING POST COPYHOLDER LINE GUIDE REQUIREMENT THERE SHOULD BE SUFFICIENT TENSION ON THE LINE GUIDE TO PREVENT IT FROM SUPPl i NG DOWN ITS SHAFT. IT SHOULD ALSO HOLD THE COPY IN PLACE. TO ADJUST REMOVE THE NUTS FROM SHAFT MOUNTING POST, AND TURN THE SHAFT.
  • Page 81 1500 hrs. or 6 mo.) first 1.02 Use Teletype KS-7470 oil at all locations where the use of oil is indicated. Use KS-7471 grease on all surfaces where grease is indicated except the motor bearings. Apply two drops of KS-7470 oil to motor bearings every four months (depress oiler with metal object).

  • Page 82: Cradle

    226B DISASSEMBLY 2.01 CABINET DISASSEMBLY PERFORM OPERATIO NS IN NUMERICA L SEQUENCE DI' S CONNECT THE PLUG ON THE CABLE FROM THE RECEPT, A CLE ON THE RIGHT SIDE OF THE TYPING UNIT. DISCONNECT THE PLUG ON THE CABLE FROM THE RECEPTACLE ON THE LEFT SIDE OF THE B' A SE.

  • Page 83: Dome

    BEARING SURFACE TILT ARM 02 BEARING SURFACES DOME HINGES ( 2 HINGES) G HOOKS-EACH END SPRING ORIGINAL...

  • Page 86: Printing Arm

    2268 TYPING UNIT 5.0.1 TYPE BOX CARRIAGE AND PRINTING MECHANISM REST TYPING UNIT II� UPRIGHT POSITION 5.02 5.04 5.02 PRINTING MECHANISM FcLTWASHERS PRINTING HAMMER (2 WASHERS) OPERATING BAIL FELT WICK SPRING WICK ENGAGING SURFACE SECONDARY PRINTING ARM ENGAGING SURFACE PRINTING HAMMER FELT WICK SPRING WICK HOOKS-EACH END...

  • Page 87: Printing Track

    226B 5.03 PRINTING MECHANISM {Continued) PRINTING CARRIAGE ROLLERS FELT WASHER (3 WASHERS) GUIDING SURFACE PRINTING ARM EXTEN'SION TRACK SURFACE PRINTING TRACK PRINT ING ARM FELT WASHERS ( 2 WASHERS) TYPE BOX CARRIAGE MECHANISM 5.04 TYPE BOX CARRIAGE LATCH BEARING SURFACE TOGGLE BEARINGS TYPE BOX CARRIAGE...
  • Page 90 226B P APER FEED MECHANISM 5.09 PAPER STRAIGHTENER SHAFT BEARING SURFACES (EACH END) BEARING SURFACES PAPER S1R'AIGHTENER LEVER S (RIGHT AND LEFT) HOOKS-EACH END SPRING BEARING SURFACE RELEASE LEVER BEARING SURFACES RELEASE LEVER LINK (EACH END) HOOKS-EACH END SPRING BEARING SURFACE PL ATEN DETENT BAIL PAPER FINGER SHAFT BEARING SURFACES...
  • Page 91 226B 5.11 REST TYPING UNIT IN UPRIGHT POSITION 5.12 , 5.13 5. 14 (RIGHT SIDE VIEW) 5. 12 Rl BBON fEED MECHANISM ( Rl GHT Sl DE) RIBBON ROLLER SHAFT BEARING SURFACE RIBBON SPOOL TOGGLE BEARING SURFACE RIBBON SPOOL SHAFT RIBBON FEED LEVER SPRING HOOKS-EACH END RIBBON RATCHET WHEEL 'SPRING...

  • Page 92: Vertical Positioning Lock Lever

    226B 5.14 RIBBON FEED MECHANISM (Continued) BE, A RING SURFACE RIBBON DETENT LEVER TEETH RIBBON-REVERSE SPUR GEAR 5.15 VERTICAL POSITIONING MECHANISM (RIGHT 'SIDE} FELT WASHER VERTICAL POSITIONING LEVER BEARING 'SURFACE RIBBON DRIVE LINK B>IGAGING SURFACE VERTICAL POSITIONING LEVER ENGAGING SURFACES VERTICAL POSITIONING LOCK LEVER PLACES} HOOKS-EA ·...
  • Page 93 226 B 5.16 RIBBON FEED MECHANIS M (LEFT SIDE) SPRING HOOKS-EACH END BEARING SURPACE RIBBON SPOOL SHAFT BEARING SURF ACE RIBBON ROLLER SHAFT FELT WASHER RIBBON SPOOL SHAFT SPRING HOOKS-EACH END RIBBON FEED LEVER BAIL FELT WASHERS (2 WASHERS) RIBBON-REVERSE LEVER BEARING SURFACE RIBBON RATCHET WHEEL TEETH...
  • Page 95 226B 5. 20 CODE J3!AR MECHANISM GUIDE SLOTS SHIFT LEVERS TRANSFER LEVER GUIDE BEARING BEARING GUIDE SLOTS (6 SLOTS) ROLLER BEARINGS SHIFT LEVER LINK ROLLERS ROLLERS) FELT WASHERS SHIFT LEVER LINK SHAFT (2 WASHERS) HOOKS-EACH END SPRING ( 5 SPRINGS) GUIDE SLOTS INTERMEDIATE ARMS AND ( 5 SLOTS)
  • Page 98 226B 5.26 lcontinued) STUNT BOX MECHANISM CODE BAR FORKS ENGAGING SURFACE (EACH FUNCTION SLIDE) B LOCKING SLIDE 'SLIDING SURFACES (2 PLACES) CR-LF SUPPRESSION SPRINGS HOOKS-EACH END ( 2 SPRINGS) EACH ROLLER AND FUNCTION SLIDES FORK PIVOT EACH SLIDING 'SURFACE FUNCTION SLIDES EACH ENGAGING SURFACE FUNCTION SLIDE'S ENGAGING SURFACES...
  • Page 99 226B 5.28 RIBBON-REVERSE MECHANISM RIBBON-REVERSE DETENT ENGAGING SURFACE PAPER RELEASE LEVER BEARING SURFACE TEETH RIBBON-REVERSE SPUR GEAR RIBBON-REVERSE SHAFT BEARING ( Rl GHT AND LEFT) HOOKS-EACH END SPRING· RIBBON-REVERSE DETENT LEVER BEARING SURFACE 5.29 FUNCTION BAR RESET MECHANISM FELT WASHER...

  • Page 100: Carriage Return Latch Bail

    226B 5.30 REST TYPING UNIT ON ITS BACK 5.34 5.33 5.32 5.31 5..31 SPACING DRUM DRIVE MECHANISM SPACING CUTOUT LEVER ENGAGING SURFACE BEARING (OUTER AND SP' A CING DRUM SHAFT INNER END) FELT WASHER ENGAGING SURFACE TRAN' S FER SLIDE STOP ARM ROLLER ROLLER B.
  • Page 101 226B 5. 32 CARRIAGE RETURN MECHANISM FELT OILER PRINTJNG TRACK GUIDE BETWEEN LAYERS CARRIAGE RETURN SPRING CAM DJSK SURFACE MARGIN INDICATOR CAM DISK BEARING (OUTER CARRIAGE RETURN SPRING AND INNER END) DRUM SHAFT FELT WASHER HOOKS-EACH END SPRING TENSION PULLEY BAIL BEARING SURFACE MAIN BAIL FELT OILER...
  • Page 104 226B 5.40 REST TYPING UNIT IN UPRIGHT POSITION 5.44 5.42 (FRONT VIEW) 5.41 LETTERS-FIGURES SHIFT MECHANISM GUIDING SURFACES SHIFT LINK BREAKER SLIDE (2 SLIDES) LETTERS-FIGURES SHIFT FELT WASHER SLIDE POST BEARING 'SURFACE LETTERS-FIGURES SHIFT SLIDE FELT WASHER LETTERS-FIGURES SHIFT SLIDE POST ORIGINAL 3-24...
  • Page 105 226B lcontinued) LETTERS-FIGURES SHIFT MECHANISM FELT WASHER SHIFT SLIDE DRIVE LINK BR8AKER 'SLIDE BAIL BEARING SURFACE BEARING SURFACE' S MAIN B' A IL LINK 2 PLACE' S ) FELT WASHER SHIFT SLIDE DR IVE LINK BEARING SUR FACES MAIN BAIL LINK 2 PLACES) 5.43 OSCILLATING MECHANISM...
  • Page 106 5.44 OSCILLATING MECHANISM (Continued) OS CILLATING RAIL SHIFT LINK HOOKS-EACH END SPRING FELT WASHERS PULLEYS WASHERS) BEARING S URFACES OSCILLATING RAIL SHIFT LINK PLACES) OSCILLATING RAIL GUIDE ARM FELT WASHER REST TYPING UNIT IN BOTTOM UPWARD POSITION 5.45 5.49 (BOTTOM VIEW) 3-26 ORIGW...
  • Page 107 226B 5.46 MAIN SHAFT (CLUTCHES, GEARS, ETC) FELT WASHER DRIVE LINK BEARING CLUTCH ASSEMBLY INTERNAL MECHANISM CLUTCHES) FELT WICKS TEETH ( 4 GEARS) MAIN SHAFT GEARS BEARING SURFACES CLUTCH SLEEVES CLUTCHES) MAIN SHAFT BEARING BALL BEARING CAMMING SURFACES CLUTCH DISK DISKS) BEARING SUf\FACE DRIVE LINK BEARING...
  • Page 108 FELT WASHER ROLLER .SPRING WICK FELT WICK BEARING SURFACE FOLLOWER ARM HOOKS-EACH END SPRINGS (9 SPRINGS) FELT WASHERS CLUTCH TRIP LEVER ( 16 WASHER' S) S.'-I·AFT 5.50 REST TYPING UNIT IN BOTTOM UPWARD POSITION 5.52 5.53 5.51 (BOTTOM VIEW) ORIGIN' 3-28...

  • Page 109: Spacing Trip Lever

    2268 5.51 SPACING MECHANISM SPACING TRIP LEVER ENGAGIN� SURFACE� FELT WASHERS SPACING SUPP RESS ION WASHERS) SLIDE FELT WASHER SPACING TRIP LEVER FELT WASHER SPACING TRIP LEVER BAIL SHAFT SPACING TRIP LEVER ENGAGING SURFACE BAIL SPRING HOOKS-EACH END SPRINGS) l Continued) SPACING MECHANISM 5.
  • Page 110 226B 5.54 REST TYPING UNIT IN BOTTOM UPWARD POSITION 5.55 (REAR VIEW) 5.55 LINE-FEED MECHANISM 0 HOOKS-EACH END SPRiN G 02 BEARING SURFACE PLATEN HAND WHEEL 02 BEAR ING SURFA CE PLATEN IDLER SPUR GEAR TEETH PLATEN SPUR GEARS (2 GEARS) 0 HOOK S-EA CH END SPRING LINE-FEED BARS...

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