43
Standard Control Box
Master ON/OFF Switch
Pressure Adjust Switch
Pressure Gauge
Boom Section
Switches
Control Box
The control box consists of the following components:
•
MASTER ON/OFF switch which controls power to the valves for each boom section. When
power is supplied to the valves, the valves open, allowing liquid to flow to the boom sections.
NOTE:
The toggle switches for the individual boom sections must be ON to energize the valves.
•
Individual toggle switches which allow the operator to control flow to the individual boom sections
(L, left; C, center; and R, right). Turning a switch OFF allows the valve for that section to close.
•
PRESSURE ADJUST toggle switch which allows the operator to INCREASE (+) or DE-
CREASE (-) the pressure of the liquid supplied to the boom sections. When the operator re-
leases the switch after adjusting the pressure, the switch automatically returns to its center
NEUTRAL position.
NOTE:
When making adjustments, monitor pressure carefully. The control system does not have
automatic HIGH or LOW pressure limit switches.
•
PRESSURE GAUGE which indicates the pressure of the liquid supplied to the operating boom
sections.
If the operator shuts OFF a boom section, the pressure of liquid supplied to the other two boom
sections will increase because the same volume of liquid is being pumped through fewer nozzles.
The operator must use the pressure adjust switch on the control box to manually reduce the pres-
sure to the operating pressure desired.
Summary of Contents for 500 BW
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Page 31: ...27 Spray Tip Wear...
Page 38: ...34 TeeJet Air Induction Spray Tips At Various Speeds And Pressures 20 Inch Tip Spacing...
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