Valley Rainger Linear, Owner'S Manual

Page: 34 / 104

34 Rainger Linear
OPERATION
Water Shut Off Valve (Closed Delivery Hose Drag Only)
The Water Shut Off Valve is typically used to prevent
overwatering by automatically shutting off the flow of
water if the machine shuts down due to a break in
the safety circuit. The Water Shut Off Valve is a hy-
draulically operated sleeve type control valve with a
function selector and an electric solenoid. See Figure
34-1.
The function selector has three positions; Open,
Close and Auto.
• When the function selector handle is pointed to
the Open position the water shut off valve will
open completely.
• When water pressure exists on the up stream side
of the water shut of valve and the function selector
handle is pointed to the Close position the sleeve
chamber is pressurized, closing the water shut off
valve completely.
• When the function selector handle is pointed to
the Auto position then the electric solenoid is used
to automatically open or close the water shut off
valve if wired to do so. The electric solenoid must
be energized to open the water shut off valve and
de-energized to close the water shut off valve.
The water shut off valve is either in the completely
opened or the completely closed (shut off) when
operated electrically. Pointing the function selec-
tor handle to open or close will override the auto
control.
• To hold the water shut off valve partly open, use
the function selector to open the water shut off
valve part way and then point the function selector
handle midway between open and close.
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2
3
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Figure 34-1 1. Water Shut Off Valve
2. Function Selector
3. Electric Solenoid