Shift Magnet Assembly Removal; Backspace Rack Removal; Shi Ft Arm Removal - IBM Selectric I/O Reference Manual

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2
FIGURE 36.
Latch Pusher Removal
SHIFT MAGNET ASSEMBLY REMOVAL
1.
Remove the spring from the hold armature
(#1,
Figure
37).
2.
Loosen the front mounting stud
(#2,
Figure
37).
3.
Loosen the rear mounting screw
(#3,
Figure
37).
4.
Slide the assembly forward and remove it.
5.
The following adjustments should be checked after the
shift magnet assembly is removed:
a.
Shift-magnet assembly adjustments
FIGURE
37.
Shift Magnet Assembly Removal
BACKSPACE RACK REMOVAL
1.
Remove the motor.
2.
Remove the backspace -rack spri ng
(# 1,
Fi gure
38).
3.
Remove the three backspace -rack mount i ng studs
(#2,
Figure
38),
one of which is not shown, and remove the
rack.
4.
The following adjustments should be checked after
the
backspace rack is replaced:
a .
Tab-I ever stop
b.
Backspace rack
c.
Intermediate lever
3-10
FIGURE
38.
Backspace Rack Remova!
SH 1FT ARM REMOVAL
1.
Position the carrier to the left and remove the right dust
cover.
2.
Remove the shift-contact assembly
(#1,
Figure
39).
3.
Remove the shift-arm brace
(#2,
Figure
39).
4.
Loosen the setscrews that hold the shift-arm pivot
(#3,
Figure
39).
5.
Rotate the head counterclockwise, remove the tape from
the shift-arm pulley, and put it on the tilt pulley.
6.
Remove the shift-arm pivot and arm.
7.
The following adjustments should be checked afl-er i-he
shift-arm is replaced:
a.
Typehead homing
b.
Shift contact adjustments
FIGURE
39.
Shift Arm Remova!
OPERATIONAL CAM CHECK PAWL AND ESCAPEMENT CAM
FOLLOWER REMOVAL
1.
Position the carrier to the left and remove
tile I
igLt
dusl
cover.
2.
Disconnect the escapement link
(#]
f
Figure
40).
3.
Remove all C-clips from the check pawl shaft
(#2, Fig-
ure 40).
4.
Slide the shaft to the left until the desired part is free.
Note:
Remove springs on Iy as necessary.

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