Manual / Guide · 1964
15 Teletypewriter Keyboard - Lubrication BSP Section 572-203-701 1964
15 Teletypewriter Keyboard — Lubrication
Manual / Guide · 1964
15 Teletypewriter Keyboard — Lubrication
BELL SYSTEM PRACTICES Plant Series SECTION 572-203-701 Issue 1, December, 1964 AT&TCo Standard 15 TELETYPEWRITER KEYBOARD LUBRICATION CONTENTS PAGE 1. GENERAL 1 2. PARTS TO BE LUBRICATED •..... 1 Keyboard - bottom view .•...... Keyboard - front view •........• Keyboard - left side view ....•• 4 3 2 3. PARTS TO BE LUBRICATED NOT SHOWN IN ILLUSTRATIONS 4 Lubrication of under side of keyboard •..•.............• Lubrication of upper side of keyboard •..•.............. 4 1. 02 The lubrication symbols used in this section are the same as those in the general lubrication section. However the symbo~ ( OFC) has been added in this section and means oil fill cup. 1. 03 The illustrations in this section show the keyboard and associated units but the lubrication symbols are associated only with the keyboard. Points to be lubricated that are not shown in the illustrations are listed in 3. of this section. 1. 04 Because of the varying conditions at each station, the 15 teletypewriter keyboard should be lubricated as often as specified by local instructions. 4 2. 1. GENERAL 1. 01 This section contains the lubrication procedures for the 15 keyboard. This section and the section covering teletypewriter general lubrication provide the complete lubrication information for maintenance of the 15 keyboard. PARTS TO BE LUBRICATED Note 1: Oil both loops of all helical springs that exert a nominal tension of less than 2-1/2 pounds. Note 2: Grease both loops of all helical springs that exert a nominal tension of 2-1/2 pounds or more. Prepared for American Telephone and Telegraph Company by Teletype Corporation © Teletype Corporation 1964 Printed in U.S. A. Page 1 ~ SECTION 572-203-701 2. 01 Keyboard - Left side view G ~~~-----~r----- OFC .~~ OS HIGH PARTS OF CAMS 0 Page 2 ISS 1, SECTION 572-203-701 2. 02 Keyboard - Front View OS All KEY LEVER SLOTS Page 3 SECTION 572-203-701 2. 03 Keyboard - Bottom View 0 ~LEVERS <S) ()) I~I BOTH ENDS OF 31 KEY LEVER ~ 5 LOCKING\, LEVERS Q OGO 5 ROLLERS & SLOTS EACH END 3. u'e-~ I I OJ' SLOTS " IN - PARTS TO BE LUBRICATED NOT SHOWN I CoMBOS OS SERRATIONS IN SELECTOR BARS 3. 02 Lubrication of Upper Side of Keyboard: IN ILLUSTRATIONS. (1) 0 - Contact-lever 3. 01 Lubrication of Under Side of Keyboard: 0 - Universal-bar pilot-screw bearings. Page 4 4 Pages pivoting shaft guiding conib. (2) 0- Repeat space rod at each end. and