IBM 1403 Field Engineering Maintenance Manual page 73

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Hold;ng Sc.ew (2)
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Hardened Washer
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Figure 69. Movable Base (Model 3)
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c. Position the block against the front recess irr the
T-casting with a maximum clearance of .001".
d. Tighten the mounting screws.
2. Adjust the movable base to the T-casting for a maxi-
mum clearance of .001" as follows:
a. Tighten the two front gibs that hold the movable
base to the T -casting (screws under T -casting).
b. Loosen the two locknuts on the two screws that
hold the rear edge of the movable base down.
c. Tighten these nuts enough to remove the clear-
ance between the screw threads and threads in
the T -casting.
d. Hold the nuts with a wrench and adjust each
screw to obtain the .001" maximum clearance be-
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