IBM 01 Maintenance Manual page 377

MODELS 815 and 816 CUSTOMER ENGINEERING
When the carriage return cam is tripped, it moves the
clutch lever against its roller, bringing the clutch surfaces
together. A link from the clutch lever to the intermediate (
bell crank and another link from the bell crank to the air
cylinder latch serve to release the air cylinder operating
lever (Figure 1).
A short link from the air cylinder latch operates the
rebound release lever which serves two functions:
1. The rebound release lever strikes the rebound check (
pawl and prevents it from engaging the rebound rack
when the clutch is engaged (Figure 3).
2. The rebound release lever strikes an extension on the
tabular latch, moving the interposer guide assembly
to the left. This action unlatches the tab operating
lever (Figure 2).
When the air cylinder operating lever is released, a large (
spring pulls it to the left. A link to the pawl release bell-
crank allows the escapement pawl to be removed from the
escapement rack. At the same time the margin lever is
moved to the left so that it will be in a position to unlatch
the clutch when the carriage has returned to the left margin.
Interposer Guide Assembly
(
(
(
Figure 3. Release and Interlock Mechanism
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