IBM Selectric - Cord Adjustment; Cord Replacement; Cycle Clutch Pulley Removal; Cycle Clutch Pulley Removal, Late

CYCLE CLUTCH PULLEY REMOVAL (EARLY)
1. Perform the Cycle-Clutch and Cycle-Shaft removal.
2. Remove the IIC II c lip from the rotate be Ilcrank pi vot pi n
(#1, Figure 61).
3. Disconnect the rotate link from the rotate bellcrank (not
shown) .
4. Remove "C II clip and remove pivot pin (#2, Figure 61).
5. Push down on the rotate balance arm (#3, Figure 61) and
lift up on the rotate bellcrank until the two are clear of
each other and then remove the bellcrank.
6. Remove the cycle-clutch-latch spring (not shown).
7. Remove the IIC II clip which hQlds the cycle-clutch-latch
link to the cycle-clutch latch and disconnect the link
from the latch (not shown) .
8. Remove the bottom latch screw, loosen the top latch screw
and slide the latch up and out (#4, Figure 61).
9. Take the belt off the pulley and remove the pulley (#5,
Figure 61).
10. The following adjustments should be checked after the
cycle-clutch pulley is replaced.
a. Latch Height
b. Cycle Shaft End Play
c. Idler Gears
d. Cycle-Clutch Spring
e. Cycle-C lutch Latch Bite
f. Damper-Spring
g. Fi Iter Shaft Timing
h. Print Shaft Timing
i. C 1 and C2 Contact Timing
3
2
4 5
Figure 61. Cycle Clutch Pulley Removal
CYCLE CLUTCH PULLEY REMOVAL (LATE)
1. Perform the Cycle-Clutch and Cycle-Shaft removal.
2. Remove belt from pulley. -
3. Remove two set screws from pulley 0 One on top of the
other used as a lock screw.
4. Remove cycle clutch hub from pulley.
S. Perform section 10 of early style cycle clutch removal.
CORD REPLACEMENT
NOTE:
Remove the main spring.
NOTE: Cut pre-stretched cords to following lengths for
1111 & 15
11
machines:
Tab cords 11 inch machines = 18-3/4
Tab cords 15 inch machines = 23-1/2
Carrier Return 11 inch machines = 18-3/4
Carrier Return 15 inch machines - Cord should be cor-
rect length.
Above lengths allow 1" for Figure 8 knot.
1. With the carrier to the extreme right, feed the carrier re-
turn cord around the pulleys and connect to cord drum
(#1, Figure 62).
2. Connect carrier return cord to carrier usi ng long nose pi iers
and spring hook (#2, Figure 62).
3. Disconnect clutcn unlatching link (#1, Figure 63).
4. Manually latch the clutch and turn the machine by hand
unti I the carrier is pulled fully to the left.
5. Connect the escapement cord to the drum with about 1
turn of the cord on the drum (#2, Figure 63).
6. Connect the end of the cord to th~ carrier and then place
it on the pulleys (#3, Figure 63).
7. Connect the clutch unlatchinfg I ink.
8. Replace and adjust the main spring (5 turns) with the car-
rier resting at the extreme RH margin.
CORD ADJUSTMENT
A
time saving method of transport card adjustment may be ac-
compl ished by tying a knot in the end of the cord as close to
the hook as possible.
, I
Carrier Returrt -Cord Replacement
3
2
Figure 63. Escapement Cord Replacement
3-18