IBM 1402 Reference Manual page 45

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3-41. Radial Card Guide Outline
ADJUSTMENT OF RADIAL STACKER CARD GUIDES
MALFORMED RADIAL CARD GUIDES CAN BE A
CAUSE OF CARD JAMMING. THESE GUIDES
SHOULD BE FORMED ACCORDING TO THE
ILLUSTRATED PROFILE. DO NOT DISTORT THIS
PROFILE TO ACCOMPLISH INSTALLATION.
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