IBM Selectric Service Manual

15
13
10
II
FIGURE 1. Bottom View Of The Printer
IBM #10
1. Cycle-clutch pawl
2. Selector bail roller pivots
3. Negative-five bail roller pivot
4. Actuating-arm pivots
5. Operational pull links
11. Cycle-clutch trip pivots
12. Switch or
contact latch pivots
13. Cycle-clutch trip-bail pivot points
14. Selector-latch bai I pivots
15. Pusher bail pivots
6. Pusher bail-arm pivots
7. Carrier-return actuating-arm pivot
8. Rotate-link pivots
9. Pusher-arm pivots
10. Negative-five link bearing
A. Operational-arm pivots
B. Selector-latch surfaces
1-2

IBM Selectric Specifications

General

Type	Electric typewriter
Introduced	1961
Keyboard Layout	QWERTY
Carriage Return	Electric
Manufacturer	IBM
Printing Technology	Typeball (golf ball)
Power Source	AC Power
Power Supply	120V AC

Summary

Section 1. Lubrication

GENERAL PROCEDURE

Outlines initial steps for cleaning and inspecting the printer before lubrication.

LUBRICATION

Details lubricant types and application methods based on machine usage and motion types.

Section 2. Adjustments

MOTOR AND DRIVE

Covers adjustments for drive belt, motor pulley, clutch pawls, and idler gears.

Selection Mechanism

Explains adjustments for latch bail shaft and plate alignment for proper selector operation.

Latch Bail Shaft

Details the specific adjustment procedure for the latch bail shaft plate to ensure proper cam contact.

Differential Guides

Covers the adjustment of rotate and tilt differential guides for vertical alignment of links.

Section 3. Removals

CYCLE CLUTCH AND CYCLE SHAFT REMOVAL

Step-by-step instructions for removing cycle clutch and cycle shaft components.

BELT REPLACEMENT

Procedures for replacing the drive belt on the cycle clutch and cycle shaft mechanism.

ROTATE SELECTION DIFFERENTIAL REMOVAL

Provides steps for removing the rotate selection differential assembly.

OPERATIONAL MAGNET ASSEMBLY REMOVAL

Instructions for removing the operational magnet assemblies.

Section 4. Service Index

BACKSPACE

Troubleshooting guide for backspace mechanism issues and related adjustments.

SPACING

Adjustments and troubleshooting flowcharts for spacing-related issues.

PRINT ESCAPEMENT

Diagnostic flowchart and adjustments for the print escapement mechanism.

Section 5. Console Reduced-Function Printing Unit

Lubrication

Specific lubrication points for modified components in the reduced-function unit.

Adjustments

Outlines the five key adjustments for the cycle clutch magnet assembly.

Cycle Clutch Magnet

Details the sequence and parameters for adjusting the cycle clutch magnet assembly.