IBM Selectric Service Manual

FIGURE 44. Operational Magnet Assembly Removal
OPERATIONAL LATCH BRACKET REMOVAL
1 • Remove the feedback-colJtact-assembly bracket by
loosening
the two screws (#1, Figure 4S).
2. Remove the mainspring and hub (#2, Figure 4S).
Caution: Care must be used when unwinding and re-
moving main spring.
3. Disconnect the backspace-latch spring (not shown).
4. Remove the backplate (#3, Figure 4S).
S. Disconnect the backspace-rack spring (#1, Figure 46).
6. Disconnect the cam-follower spring (#2, Figure 46).
7. Disconnect the spacebar and tab-latch springs (#3,
Figure 46).
8. Disconnect the tab-bellcrank I ink clevis (not shown).
9. Disconnect the detent spring (#4, Figure 46).
10. Disconnect the carrier-return latch spring (#S, Figure
46).
11. Remove the index-selection link (#6, Figure 46).
FIGURE 4S. Operational Latch Bracket Removal
FIGURE 46. Operational Latch Bracket Removal
12. Remove the carri er-return eccentri c by removi ng the
eccentric nut (#7, Figure 46).
13. Remove the escapement link (#8, Figure46).
14. Disconnect the carrier-return actuating spring and
carrier-return actuating-arm spring (#9, Figure 46).
lS. Remove the escapement-torque-bar restoring spring (#10, I
Figure 46).
16. Remove the two mounting screws (the left one is not
visible)
and one nut (#1 T, Figure 46).
17. Work the operational-latch bracket out of the machine.
18. The following ad justments should be checked after the
operational-latch-bracket is replaced:
a. CS and C6 timing
b. Mainspring tension
c. Trigger guide
d. Escapement link
e. All operational latch clearances
f. Carri e r return
g. Backspace
FIGURE 47. Shift Cam Removal
3-12

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