IBM 01 Maintenance Manual page 276

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MODELS 4 and 5
CUSTOMER ENGINEERING
Figure 7. Rail Assembly, Top View (
ESCAPEMENT PAWL REMOVAL.
Remove the tab rack,
tab lever bracket screw, clutch knockout lever screws and
connecting links (Figure 7). Brace the carriage so that it
will not move when the escapement pawls are removed
from the rack. After the pawl block assembly is removed
the individual pawls may be removed by removing the
horseshoe clip that retains the escapement pawl pin which
is located just below the 8 pawl. The steel band that serves
as a stop for the notch on the front edge of the pawls
may· be removed by springing the top off from the small
stud that retains it. The pin may then be removed through
the top of the block. This will clear the pawls so that they
may be removed. The pawl springs must be disconnected
from the spring bracket, and the pawls must be turned so
that they can be lifted upward off the pawl grouping lever.
Replacement should be accomplished in reverse order. ( )
Hold the escapement pawls out of the rack while setting
the pawl bracket in place.
Figure 8. Number and Pitch Identification of Pawls
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