Rotate Spring Replacement; Lower Ball Socket And Tilt Ring Removal - IBM Selectric Maintenance Manual

ROTATE SPRING REPLACEMENT
1. Remove the I eft dust cover.
2. Remove the ribbon cartridge.
3. Center the carrier over the camshaft.
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4. Remove the two screws (#1, Figure 12) that hold the con-
tact plate to the frame. Remove the contact assembly,
holding it to the front with a rubber band.
5. Remove the two nuts (#1, Figure 13), one on newer ma-
chines, immediately to the right of the yoke on the car-
rier, remove ·the black clip from under the nut (#2, Fig-
ure 13) and gradually remove the tension from the rotate
spring.
6. a. On older machines, back out the two screws.(#l,
FIGURE 12. Rotate Spring Replacement'
FIGURE 13. Rotate Spring Replacement
Figure 14) on the right 1/4" and remove the screw
on the left, which is under the cycle shaft (#2, Fig-
ure 14).
2
3
FIGUR~
14. Rotate Spring Replacement
b. On newer machines, remove the lower right and left
screws and back out the upper right screw 1/4" (Fig-
ure 14).
7. Remove the striker and rotate-spring retaining plate (#3,
Figure 14). The rotate spring can now be removed.
Note: In newer machines there may be a spring clip
(PN 1141238) that prevents the spring from being trapped
in the pulley notch. If not, one should be added on re-
assembly.
8. The following ad justme,nts should be checked after the
rotate-spring is replaced:
a. Rotate spring tension
b. Typehead homing
c. Damper spring
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Not present on all printers.
3-4
LOWER BALL SOCKET AND TILT RING REMOVAL
1. Remove the left dust cover and ribbon cartridge. Center
the carrier over the cycle shaft.
2. Shift into upper case.
3. Remove the two screws (#1, Figure 12) that hold the print
contact plate to the frame. Remove the contact Elssembly,
holding it to the front with a rubber band. .
4. Half cycle a O-rotate 1-tilt character. Note which posi-
tion the tilt detent is in for replacement and be sure the
. machine is sti /I in upper case.
5. Loosen the two setscrews (#1, Figure 15).
6. Remove the two pi vot pi ns (#2, ,Fi gure 15).
7. Remove the tilt ring (#3, Figure 15) and remove the ball
joint.
8. Loosen the rotate pulley setscrew (# 1, Figure 16).
9. Use the butt end of a small spring hook as a follower to
push out the lower ball socket (#2, Figure 16). Note:
This
prevents·th~
wedge from being lost. When replacing
the socket be sure the pin is pointing toward the front-
left and right-rear corners.
10. The following adjustments should be checked after the
lower ball socket and tilt ring is replaced.
a. HIt dehmting
b.
Typehead homing
c .Ti It ring
d. Upper ball socket