CONTENTS

Foreword . . . . . Distribution List. Record of Changes. 1-4-lD Signalling Code. l-4-2D Half Duplex TTY Circuit. 1-5-lD Terminology #1 l-5-2D Terminology #2 l-5-3D Terminology #3 l-5-4D Terminology #4 l-5-5D Terminology #5

Gear Power Train Internal Expansion Clutch.

1-6-lD l-6-2D 2-1-lD 2-l-2D 2-1-JD 2-l-4D 2-l-5D 2-l-6D 2-l-7D 2-l-8D 2-l-9D 2-1-lOD 2-1-llD 2~1-12D

2-l-13D 2-2-lD 2-2-2D 2-2- 3D 2-2-4D 2-2-5D 2-3-lD 2-3-2D 2-3- 3D 2-3-4D 2-3-SD 2-3-6D 2-3-7D 2- 3-8D 2-3-9D 2-3-lOD 2-3-llD 2- 3-12D 2-3-13D

Main Shaft and Selector Cam Sleeve Assembly. Selector Clutch Trip Mechanism Range Finder Operation Selecting Mechanism. Selection (Marking). . Selection (Spacing). . Transfer Mechanism (Marking) Transfer Mechanism (Spacing) Push Lever Reset . . . Common Transfer Lever .. Code Bar Clutch Trip . . Code Bar Shift Mechanism #1. Code Bar Shift Mechanism #2. Clutch Trip Shaft .. Configuration of the Typebox Type Box Clutch. . . . . . . Vertical Positioning .... Vertical Positioning Lock Levers Reversing Slide ... Horizontal Positioning ..... Horizontal Positioning Lock Lever. Horizontal Motion Stop Slides ... Horizontal Motion Stop Slides Positioning. Ribbon Oscillation Ribbon Feed ..... . Ribbon Reverse . . . . Spacing Trip Mechanism Spacing Feed Pawls . Spacing Mechanism #1 Spacing Mechanism #2 Spacing Cut-Out ...

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iii 1 2 3 4 5 6 7 8 9

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40

CONTENTS (continued)

2-4-lD 2-4-2D 2-4- 3D 2-4-4D 2-4-SD 2-4-6D 2-4-7D 2-4-8D 2-4-9D 2-4-lOD 2-4-llD 2-4-12D 2-4-13D 2-4-14D 2-4-lSD 2-4-16D 2-4-17D 2-4-18D 2-4-19D 2-4-20D 2-4-21D 2-4-22D 2-4-23D 3-1-lD 3-l-2D 3-l-3D 3-l-4D 3-1-SD 3-l-6D 3-l-7D 3-l-8D 3-l-9D 3-1-lOD 3-1-llD 3-l-12D 3-l-13D 3-l-14D 3-1-lSD 3-l-16D 3-l-17D 3-l-18D 3-l-19D 4-1-lD 4-l-2D 4-l-3D

Printin g Mechanism ..... . Reset Bail (initial position). Reset Bail (final position). Stripper Blade . . . . . . . Carriage Return Mechanism #1 Carriage Return Mechanism #2 Local Carriage Return. Spacing Suppression ..... Signal Bell Function . . . . Letters/Figures Shift Slides Figures Shift. . Letters Shift ... Double Line Feed . Line Feed Function Line Feed Mechanism. Single Line Feed Local Line Feed ... Manual Line Feed . . Automatic Line Feed on Carriage Return Universal Mechanism .. Automatic Carriage Return and Line Feed. Remote Keyboard Lock Function. Lockbar Mechanism. Lockball Mechanism Keyboard Mechanism #1. Keyboard Mechanism #2. Signal Generator Clutch Trip Code Bar Selection . . . Transfer Lever Locking Bail . Signal Contact Signal Contact Keyboard Reset Keyboard Reset

Mechanism ..

Box (Marking) Box (Spacing) t/1. . . . . . 1!2. . . . . .

Disengaging Signal Generator Clutch. Clutch Trip Delay. Repeat Key Operation Line Break Mechanism Local Keyboard Lock. Keyboard Unlock ... Character Counter (Counting) Character Counter (Resetting). Blocking Bail Operation .. Bell Crank Operation ... Keyboard Control Selection Lever

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41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85

CONTENTS (continued)

4-l-4D 4-1-SD 4-l-6D 4-l-7D 4-l-8D 4-l-9D 4-2-lD 4-3-lD 4-3-2D 4-3-3D 4-3-4D 4-3-SD 4-3-6D 4-3-7D 4-3-8D 4-3-9D 4-3-lOD 4-3-llD 4-3-12D 4-3-13D 4-3-14D 4-3-lSD 4-4-lD 4-4-2D 4-4-3D 4-4-4D 4-4-SD 4-5-lD 4-5-2D 5-1-lD 5-l-2D 5-1-3D 5-l-4D 5-1-SD 5-l-6D 5-l-7D 5-l-8D 6-2-lD 6-3-lD 6-4-lD 6-5-lD 6-6-lD 7 1-lD 8-2-lD

Keyboard Control Selection Lever (T) Perforator Function Clutch Trip. Punch Slide Reset Bail Punch Mechanism #1 . . Toggle Bail Operation. Punch Mechanism #2 . . Tape Feed and Feed nuld Spacing. Positioning Push Bars (Marking). Positioning Push Bars (Spacing). No. 5 Pulse Beam Typewheel .... Operating Blade. Axial Positioning #1 Axial Positioning #2 Axial Correcting . . Rotary Positioning . Cross Link Operation Rotary Correcting. . Function Blade Sensing Toggle Link Operation. Letters/Figures Shift #1 Letters/Figures Shift #2 Printing Mechanism Ribbon Oscillation Ribbon Feed .... Ribbon Reverse . . Power Drive Backspace. Reperforator Selector Mechanism. Reperforator Function Clutch Trip. TD Clutch Trip . . TD Tape Feed . . . . . . TD Tape Feed (Rear View) Tape Sensing (Mark) Tape Sensing (Space) . . Transfer Bail Stabilizer Mechanism Start/Stop Mechanism and Tape Out Sensing Tight or Tangled Tap e AC Circuits (AN/UGC-6K) . . . . . DC Circuits (A.~/UGC-6K) . . . . . AC and DC Circuits of Reperforator SMD Block Diagram . . . . Teletype Panel Block Diagram Teletype Distortion. Codebar Mechanism

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86 87 88 89 90 91 92 93 94 95 96 97 98 99

100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117

'· 118 119 120 121 122 123 l2Lf 125 126 127 128 129

CONTENTS (continued)

8~2-2D Universal Mechanism. 8-2-3D Contact Mechanism. 8-2-4D Reset Mechanism #1 8-2-5D Reset Mechanism #2 8-2-6D Repeat Mechanism . . 8-2-7D Line Break Mechanism . 8-2-8D Local Line Feed .... 8-2-9D Local Carriage Return. 8-2-lOD Distributor Cam Sleeve . 8-2-llD Distributor Clutch Trip Mechanism. 8-2-12D Distrib~tor Mechanism .. 8-2-13D 3 Speed Gear Mechanism . 8-3-lD AC Circuits (AN/UGC-20). 8-3-2D DC Circuits (AN/UGC-20).

Location of Electrical Componenets Cabinet . Automatic Typer and T.D .. Keyboard. Upper ESU Reperforator and Lower ESU.

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144 145 146 147 148