IBM Selectric Reference Manual

3.
4.
Lockout Shaft
Lockout Bail Bellcrank
FIGURE 51. Lockout Link
Lockout Bail Bellcrank - With the On/Off switch in the
off position rotate the lockout bai I relative to the lock-
out bail bellcrank (Ref. Fig. 51) so that the cycle clutch
pawl stop overlaps the cycle clutch pawl by 1/3 to 1/2
(Fig. 52).
Cycle Clutch Pawl
Lockout Bail
FI GURE 52. Cycle Clutch Pawl Stop
Excessive overlap between the pawl stop and cycle
clutch pawl can cause keyboard lockup to occur since
the pawl stop must move to the rear and the cycle
clutch pawl to the front to unlock the keyboard.
Keyboard Lock Bellcrank Link - Ad just the I ink so that
the bellcrank is fully bottomed in the selector compen-
sator without choking off the action of the lockout bai I
(Fig. 53).
Lock Lever
Lockout Bail
Keyboard Lock Bellcrank Link
Keyboard Lock Bellcrank Link
2-14
5.
Operational Lockout Shaft Link - With the switch in
the on position adjust the operational lockout shaft I ink
so that the flat portion of the lockout shaft is toward
the top of the machine and parallel to the bottom power
frame (Fig. 54).
Loc kou t Ba i I Li n k
FI GURE 54. Operational Lockout Shaft Link
CAUTION: Be sure the switch lever operates easily
after making the adjustment. Be sure that the opera-
tional keys are positively locked and unlocked in the
two switch positions. Be sure the keyboard lockout
bail is not restricted by the adjustment.
A mal-adjusted link may cause the lockout shaft to
rotate further than normal. When this happens the
operational interposers may be locked or slow releas-
ing since the interposers wi II rub on the lockout shaft
when released.
KEYBOARD LOCK MECHANISM (SOLENOID OPERATED)
1.
Solenoid (Fig. 55) - Adjust as follows:
a. Screw plunger spring on plunger to cover all threads.
b. With the plunger engaged, screw adjustable core
"in" until the plunger shoulder begins to lift off the
plunger guide, then back off 1/2 turn (Fig. 55).
Plunger.Spring
Plunger Guide
Plunger
Ad justable Core
c.
"""-~~-
FI GURE 55. Solenoid
Position the solenoid directly beneath the lockout
lever (Fig. 56).
This adjustment insures the plunger will bottom
against the plunger guide and not against the ad-
justable core.

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