IBM Selectric Manual page 4

Adjust Interposer Guide
Loosen Four
Screws ----~;a."""
C)
Fi Iter Shaft
"'r---.
~
_ . /
Interposer
r
4
X@J
3.
4.
.020" To .030"
FIGURE 3. Rear Interposer Guide Comb
lows only one interposer to be positioned in the path of
the filter shaft at one time. An easy method of check-
ing the guide comb adjustment is to latch one interposer
down, depress an adjacent interposer until it is locked
out by the selector compensator, and then slowly hand
cycle the machine. The filter shaft should contact the
interposer that is latched down and miss the adjacent
interposer by at least. 005". This check should be per-
formed at several places along the filter shaft.
WARNING: The selector compensator tube is mounted
to the rear of the interposer guide comb by four clamps
and must move up and down with the guide comb when
the guide comb adjustment is made. Be sure to loosen
the guide comb mounting screws completely before at-
tempting to move the guide comb. Do not hammer the
guide comb into position as this can cause the compensator
tubetoshiftwithrespecttotheguide comb. The vertical
position ofthe tube on the guide comb is set with respect
to the stop strap riveted along the bottom of the guide
comb and should not be disturbed.
Bail Parallel
a. Loosen cycle bail up stop and move it up out of the
way of the cycle bail.
b. Adjust the left hand bail anchor plate forward or
back in its oversized mounting holes so that the
selector bails will be parallel to the lugs on the
interposers •
c. Adjust the bail anchor plate up or down so that the
cycle bail will rest as evenly as passible on all the
interposers.
NOTE: The selector bails must be parallel to the inter-
poser lugs so that the same travel will be given to the
bails by the various interposers. A loss of motion to the
selector latches could result from an unparallel condi-
tion. The cycle bail must be parallel so that the inter-
poser latch springs can be adjusted evenly.
Interpaser Latch Springs (Preliminary) With the
+/=
in-
terposer(position
44)
latched down, adjust the right hand
end ofthe right hand section of latch springs so that there
will be approximately .010" remaining travel of the
+/=
interposer before it bottoms (Fig. 4). Check this clear-
ance by pull ing the interposer down with a spring hook.
2
Loosen To Adjust
Guide
.010" Approx.
FIGURE 4. Interposer Latch Spring Adjustment
5.
CycleClutchLatchBite - Adjustthe cycle clutchkeeper
bracket forward or bOck so that the cycle clutch latch
overlaps the step on the cycle clutch sleeve by .030" to
. 035" (the thickness of the metal plate). (Fig. 5)
The overlap can readily be observed from the bottom of
the machine.
Cycle Clutch Keeper
Bracket
.030" To .035"
-~I4--
6.
o
FIGURE 5. Cycle Clutch Latch Bite Adjustment
Insufficient overlap could allow the cycle clutch sleeve
to kick past the latch and cycle again. Excessive over-
lap would sl ightly delay the unlatching action ofthe latch
and create a sluggish action.
Cycle Clutch Latch
Restorin~
a. New Style - Position the restoring roller so that the
latch pawl overthrows the keeper by .020" to .025"
with the restoring cam on its high point. Check on
both restoring cam lobes and ad just on the lobe pro-
viding the least motion (Fig.
6).
Restoring Roller
.020" To .025"
Cycle Clutch
I
Keeper
~I:
Cycle Clutch
Latch Pawl
~"""" ~ . " " . " " " " ,
• . • . . , . " . , . " , . , . . ,./,(II .••
~
•.
. . • " •.... ,·········/U
q q q
.
·~~I
Do Not Overthrow Into Sleeve
FIGURE 6. Cycle Clutch Latch Restorin$, New Style