IBM Selectric Manual page 7

FIGURE
13.
Latch Bail Shaft Plate Adjustment
Rotate differentia I I inks
must be vertical
Adjust the Guide Left or Right
~
to obtain proper adjustment
must be vertical
Adjust the Guide
Left or Right to
obta in proper
adjustment
FIGURE
14.
Selector Latch Guides
NOTE: Asa final check for the adjustment of the latch
bail plate, hand cycle the machine using the letter liZ
II
(all latches removed from the bail). Both latch bai I rollers
should maintain contact with their respective cams
throughout the cycle.
CAUTION: On early level machines the cycle bail
stop and the character interrupter must
be
read justed after
any change in the position ofthe bai I shaft plate, because
both of these parts are mounted on the plate.
5
13. Differential Guides
a. The rotate and ti It differential guides
snould
be
adjusted left or right so that the vertical links of
the two systems hang in a true vertical position
(Fig.
14)
The guide for the rotate differential is attached
to the top of the di fferential mounting bracket by
two screws just behind the balance lever. The
screws are accessible from the rear with the motor
removed.
The ti It di fferential guide is attached to the bottom
of the differential mounting bracket and is easily
accessible from beneath the machine.
b. The latch bail guide should be adjusted left or
right so that all positive rotate and tilt selector
latches hang vertically in the latch bail. The
guide is attached to the lower left corner of the
differential mounting bracket.
14. Latch Bail Stop - The latch bail stop, located just beneath
the bail, prevents the bai I from getting beneath the selec-
tor latches during shipment. Adjust'the stop to clear the
latch bai I by
.005"
to
.015"
when the bai I is at the high
point of the cycle shaft cams.
15. Latch Interposer Stop - Form the stop lugstoobtain .001"
to .005" clearance between each latch interposer and
its respective selector bail (Fig. 15 or 16).
NOTE:: On the new style, be sure that the left to right
position of the front interposer mounting bracket is such
that the latch links will exert a straight pull on the
selector latches.
The latch interposer stop lugs establish a position for the
latch interposers so that the correct adjustment of the
selector latch I inks can be obtained. Selection timing
wi
II
be di recti y affected by an erroneous stop I ug ad just-
ment.
.00111
to
.005"
FIGURE
15.
Latch Interposer Stop (Old Style)