OP-755 Part 2 Pages 197-401 - Personal Page of GENE SLOVER

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(47). Chamber (36) then becomes vented to tank by lines (35),
(52) and (51). Lines (38) and (39) by-pass, relieving pressure
on operating pump (2). Brake line (40) vents to tank
through line (53) and the spring engages the brake.
OUTPUT SHAFT
In order to re-start , it is first .necessary to bring
the operating lever (8) to the neutral position to
allow the starting valve (25) to return by spring
force. Pressure from line (26) is then ported to
line (50) and with line (49) vented to tank via (52)
and (51) the interlock valve resets, permitting the
cycle to be repeated.
OPERATING LEVER o
NEUTRAL J
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Fig. 35 - Projectile Ring Circuit Diagram
Approaching Automatic stop
16. Approaching automatic stop position) figure 35.
The diagram shows conditions as the equipment approaches the
end of a cycle of movement. At this time all valves are in
the same position as at start of cycle except valve (28) which
is in the interlock position. The interlock valve had been
shifted to this position to prevent starting the equipment before
operating lever has been returned to neutral position.
It is possible for the operator by manipulation of
the control lever (8) to stop, re-start or reverse
the direction of ring rotation at any other time.
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