IBM 01 Maintenance Manual page 472

REFERENCE MANUAL
MODELS A2 and 82
riage return is· complete to the proper margin, the selector
latch is still maintaining N.o. 1· selection and an escapement
operation must occur to restore the selector mechanism. (
When the No. 2 key lever is depressed the action of all
the parts is a duplication of the No.1 carriage return ex-
cept for the selector mechanism. The No. 2 key lever re-
leases the same carriage return cam after the No.2 transfer
lever has moved the selector lever down to a position to be
held by the upper notch in' the selector latch. The down-
ward travel of the selector lever is checked by an overthrow{
stop which is operated by the No.2 transfer lever. With
the selector lever in this position, the margin lever will
move just high enough to be in the path of the No. 2 mar-
gin stop when the air cylinder is unlatched. After the car-
riage return is completed the No. 2 selection will be main-
tained until released by an escapement operation. (
The full carriage return does not utilize any operation
of the selector mechanism. The key lever releases the
same carriage return cam which unlatches the air cylinder
operating lever. The action of the air cylinder operating
lever moves the margin lever only high enough to be in
the path of the full carriage return margin stop.
(
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