Cycle Clutch Latch Inhibitor; Print Feedback Contect Assembly, C2 - IBM Selectric Maintenance Manual

NOTE:
If necessary, refine the pivot eccentric adjustment.to ob-
tain equal latch lever overthrow from the T2 and R5 arm-
atures (Fig. 14). Adjustment No.6, Page 1-4.
4. Cycle Clutch Latch Restoring (Fig. 21) - Position the re-
storing roller so that the trip lever overthrows trcalatch
lever by .005" to .010" at its latching point on"'the low
side of the restoring cam.
::::::.~~r-
___
-IAdjust Here
(Up or Down)
\.,,"""-- Restoring Cam
.005" to .010" Overthrow
FIGURE 21. Restoring Roller
5. Cycle Clutch Latch Inhibitor (New) :
a. Adjust the inhibitor trip lever (Fig. 22) so that the
bottom edge of the inhibitor pawl is flush with the
bottom edge of the cycle clutch latch (Fig. 26) with
a II parts at rest.
This adjustment provides an adequate "bite" be-
tween the cycle clutch latch and inhibitor pawl to
prevent extra cycles. .
Adjusting Screw
FIGURE 22. Inhibitor
b. Position the inhibitor pawl mounting bracket front
to rear for .030" to .035" between the front side of
the cycle clutch latch and the inhibitor pawl (Fig.
23).
CAUTION: The R5 latch link adjustment should be
checked after any change in the position of the in-
hibitor pawl mounting bracket.
2-6
FIGURE 23. Inhibitor Pawl Mounting Bracket
PRINT FEEDBACK CONTACT ASSEMBLY, C2
I. Form the N/C support so that the O/P lifts the N/C con-
tact .002" to .005" from the N/C support (Fig. 24).
2. Position the contact mounting bracket so that the O/p's
clear the cam (at the low point) .002" to .010" (Fig.
24) •
002" to .010"
Cam
t----O/P's
Mtg. Bracket
FIGURE 24. Print Feedback Contact C-2
The following Timing Chart is laid out using a 0° reference
point. To use 180° as reference add 180° to the make and
break times.
C-2
N/c
MACHINE
BREAK MAKE
1447 20° ±5 120 ± 5
1052 20° ±5 120 ±5
1053
20° ± 5
120 ± 5
1062
20° ± 5 120 ±5
765
45° ±3
110±3
FIGURE 25. TIMING CHART
CONTACT N/C DURATION COLOR
(-2
80° White
C-2
70° Orange
FIGURE 26. CAM CHART
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