Tilt Tape Replacement; Rotate Selection Differential Removal - IBM Selectric Reference Manual

Figure 18. Rotate Tape Replacement
TILT TAPE REPLACEMENT
NOTE:
Photos and procedures are for Gearless Ti It. Gear
type may vary sl ightly.
1. Remove the left and ri ght dust covers.
2. Position the carrier 3 11 from the left frame.
3. Half cycle a zero rotate, 0 Tilt character (to lock rotate,
spri ng tension).
~.
4. Remove the broken pieces of tape from the machine.
5. Place the eyelet on the tilt pulley bellcrank (#1, Figure
19).
6. Thread the tape around the left tilt-arm pulley, right
tilt-arm pulley, and take up the slack in the tape.
7. Withdraw the rotate detent, turn the head counterclock-
wise to relieve the rotate-tape tension, tilt the head to
the front, and restore the detent.
8. Remove the tape retaining pin from the carrier and insert
the tilt tape, keeping it on top of the rotate tape.
9. Restore the typehead to the rest position.
10. Check the tilt detent adjustment. (R.H. Tilt Pulley) .
Figure 19. Ti It Tape Replacement
ROTATE SELECTION DIFFERENTIAL REMOVAL
1. Pqsition the carrier to the
~xtreme
right.
2. Remove the left dust cover, platen, feed rolls, and paper
deflector.
3. Remove the two screws (#1, Figure 21) that hold the plate
to the frame. Remove the contact assembly, holding it
to the front with a rubber band.
4. Disconnect the clevises and remove them from the links
(#2, Figure 20).
5. Remove the springs from the rotate interposers (#1, Fig-
ure 20).
6. Disconnect the rotate link at both ends and remove it (#1,
Figure 22).
7. Remove the latch-bail spring (#2, Figure 22).
8. Remove the motor.
9. Remove the rotate-latch springs (#1, Figure 23).
10. Pull out the rotate links (#2, Figure 23).
11. Remove the check-latch spring (#3, Figure 23).
12. Remove the guide-bracket mounting stud and screw (#4,
Figure 23).
13. Remove the balance-arm mounting stud (#1, Figure 24).
14. Disconnect the minus-five bail drive link from the right
end of the balance arm (#2, Figure 24).
15. Disconnect the tilt-differential spring (#3, Figure 24).
16. Rotate the cycle shaft until the cam followers are on the
low points of the cams.
17. Remove the rotate-differential assembly.
18. The following adjustments should be checked after the
rotate-selection-differential assembly is replaced:
a. Typehead Homing
b. Rotate Latch Clearance
c. Rotate Differential Guides
2 2
Figure 20. Rotate Selection Differential Removal
3-6