IBM Selectric Manual

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.015" to .O~h, '";, ~ /' /
--" ...... -
Interposer Guide
FIGURE 122. SPacebar Interposer Guide Adjustment
8.
Spacebar Interlock Mechanism (New Style) - Perform
the following adjustments:
a. With the machine latched at rest adjust the space-
bar interlock cam radially on the filter shaft so that
the tip of the interlock interposer rests on the high
point of the cam (Fig. 123).
Bracket
Spacebar Interlock Cam
Adjustable
Stop
FIGURE 123. SPacebar Interlock Mechanism
(New Style)
Also, position the interlock cam laterally on the
filter shaft so that the cam is against the flutes of
the filter shaft and the set screw is toward the right
hand side of the machine.
b. With the machine' latched at rest and the spacebar
interposer re leased to the rear, adjust the interlock
bracketfrontor rear to obtain a clearance of .040"
to .050" between the interlock interposer and the
adjustable stopon the spacebar interposer (Fig. 124).
c. Position the ad justable stop on the spacebar inter-
poser forward or back so that .020" to .025" clear-
ance will exist between the stop and the interlock
interposer when the machine is half-cycled and the
spacebar interposer is latched at rest (Fig. 125).
44
Spacebar
Interlock Cam
Interlock Interposer
1.
Spacebar
BraCke_t~r:-c====tr __ ~~;§~;I;nt!~
~
FIGURE 124. Interlock Bracket Adjustment
Interlock Interposer
Adjustable Stop
FIGURE 125. Adjustable Stop
BACKSPACE MECHANISM
Be sure that print escapement and operational control
ad justments are correct before attempting backspace
ad justments.
2. Tab Lever Stop - The rest position of the tab lever is
controlled by a lug on the escapement bracket called
the tab leverstop (Fig. 126). The stop should be formed
front or
rear so that a clearance of .001" to .003" exists
between the vertical lug on the tab lever and the back-
space pawl when the backspace pawl is bottomed in its
rack.
/
/
/-- ....... "
//
Tab Lever Stop
.001" to .003"
FIGURE 126. Tab Lever Stop Adjustment

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