IBM 01 Maintenance Manual page 39

REFERENCE MANUAL
MODEL 01
Pawl R.lease Lever
Escapemen, Pawls
1/~
Clearance
Figure 19. Pawl Release Lever Eccentric
leverage, keep the high· point of the eccentric toward the
front of the machine (Figure 19).
8.
OVERBANK.
This term is applied to the amount of play
between the left-hand margin stop and the head of the tab
lever when the carriage is resting at the left-hand margin.
Overbank is adjusted by moving the margin rack to the left
or right. Position the margin rack so that, at the instant the
left-hand margin stop contacts the head of the tab lever, an
escapement pawl will click into the tooth of the escapement
rack. Observe this adjustment by slowly moving the carriage
to the left-hand margin from a position of one or more
spaces from the left margin (Figure 20).
9.
SPIDER SPRING.
By turning the retainer and spring
assembly, adjust the spider spring tension for the proper
carriage return action. With the line space mechanism in
the triple line space position, the carriage should occasion-
ally fail to return to the margin from a spot about. one inch
from the margin. It should never fail on double or single
line space position from any distance (Figure 14).
Margin Rack
Adjuating N",,,
Figure 20. Overbank Adjustment
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