IBM Selectric Reference Manual

Margin Rack
Ad just Here
FIGURE 245. Margin Rack Overbank Guide
The adjustment insures that the left margin stop will set
accurately when the stop is slid to the right against the
margin stop latch on the carrier.
NOTE: Machines equipped with an early style margin
rack use an eccentri c plate mounted on the right end of
the margin rack to control the rest position of the rack.
Use the same procedure indicated above to obtain the
.001" to .005" clearance between the margin stop and
the stop latch on the carri er.
2. Margin Release (11 Inch Machine)
a. Early With the margin release keylever at
rest, loosen the fluted screw in the margin release
lever and rotate the margin rack (within the release
lever) to a level position (Fig. 246). Then tighten
the Bristol screw.
Margin Release Lever
Fluted Screw
FIGURE 246. Margin Release Mechanism (11 Inch - Early)
FIGURE 247. Margin Release Mechanism (11 Inch - Late)
2-82
3.
b. Late Form the margin set lever stop, which
is fastened to the left end of the margin rack, so
that the margin rack is level when the margin re-
lease keylever is at rest (Fig. 247).
Margin Release (15 Inch Machine)
a. Early
1. With the margin release keylever at rest,
loosen the left hand margin release lever and
adjust it radia lIy about its shaft so that the top
surface of the margin release lever (Fig. 248)
is parallel with the slope of the sideframe. The.
lever should also be positioned laterally on its
shaft so that it operates freely without restri ct-
ing the margin rack motion when the rack is
pushed to the left into its overbank position.
2. With the margin release keylever at rest,
Para lIel
loosen the fluted screw in the margin release
lever and rotate the margin rack (within the re-
lease lever) to a level position (Fig. 248).
Then tighten the fluted screw.
Margin Release Lever
FIGURE 248. Margin Release Mechanism (15 Inch - Early)
b. Late
lever:
Position the left hand margin release
1. Laterally so that 1/32" of the rolled pin on the
margin set lever stop protrudes beyond the left
face of the left hand margin release lever (Fig.
249) .
2. Radially so that the margin rack will be hori-
zontal when the margin release keylever is in
its rest
position. {This adjustment can be ob-
tained by adjusting either the left or right mar-
gin release lever}.
4. Marg i n Stop Fi na I Stop
a. Early Form the lug on the final stop {which is
welded to the bottom side of the margin rack} to ob-
tain a clearance of .001" to .010" between the
fina,1 stop and the margin stop with the margin stop
pi n fu II y seated in the extreme I eft tooth of the
margin rack.

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