IBM Selectric Maintenance Manual page 66

2. Unit Installed - Position the
alp
centrally over the aux-
i liary cam follower (Fig. 134). - -
~
.
~
Auxi liary
i ~C5
Cam Follow ••
alp
FIGURE 134. Contact Installed
CAUTION: If the contact assembly is mounted too far
forward the backspace latch may operate the contact
which can cause up to
30°
difference in timing. This
problem can only be seen by scoping.
3. Form the contact mounting bracket (up or down) for make
and break times. Refer to the timing chart for timing.
2-40.2