IBM Selectric - Page 59

2.
3.
Carrier Stop Latch
Adjust Here
FIGURE 170. Margin Rack Overbank Guide
Margin Release - (721 only)
a.
Old Style - With the margin release keylever at rest,
loosen the Bristol screw in the margin release lever
and rotate the margin rack (within the release lever)
to a level position (Fig. 171). Then tighten the
Bristol screw.
Margin Release Lever
/-~"
",~
Margin Release Keylever
}1GURE 171. Margin Release A1echanism
(721 Old Style)
b. New Style - Form the rrlargin set lever stop, which
is fastened to the Ie ft end of the marg in rack, so
that the margin rack is level when the margin re-
lease keylever is at rest (Fig. 172).
Margin Re~:ase - (723 and 725)
a. Old Style
1. With the margin release keylever at rest, loosen
the left hand margin release lever and adjust it
radially about its shaft so that the top surface
ofthemargin release lever(Fig. 173) is parallel
with the slope of the side frame. The lever
should also be positioned laterally on Its shaft
sothat itoperates freely without restricting the
margin rack motion when the rack is pushed to
the left into its overbank position.
58
Margi n Release Lever
FIGURE 172. Margin Release Mechanism
(721 New Style)
Parallel
Margin Release Lever
FIGURE 173. Margin Release klcc/u1Jlism
(723 & 725 Old S'[rle)
b.
2. With the margin release ke'fie\'pC 'it r,,~<,t ( loc'sen
the Bristol scre"" in the margir' r< t,cj
rotate the margin rack(withi'l t;
to a level position (Fig. lI-
the Bristol screw.
~~PW Style - Position the left ho
I p'/e: :
1. Lateral iy so that 1;32" of the
margin set lever stop protrudes b~yc ' r, :et:
face of the left hand margin release ie/er (Fig.
174) .
2. Radially so that the margin rock will be hori-
zontal when the margin release keyiever is in
its rest position. (This adiustmenl cnn be ob-
tained byadiustingeither the leh rnar-
gin rei ease I eve r . )