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HARDI
®
GAS ENGINE ESTATE SPRAYER OPERATOR’S MANUAL
4.2 ET MANUAL CONTROL OPERATION (ES 50/80)
Boom Operation
1. Locate your sprayer in a suitable location to spray water from the
boom and/or handgun.
2. Fill the tank with clean water.
3. Turn dial 1 (Fig. 2) counter clockwise all the way out.
4. Set boom switch 2 (Fig. 2) on and spraygun switch 3 (Fig. 2) off.
5. Start the engine.
Fluid System Overview
When the 500/600 pump A (Fig 1) is running, pressurized fluid flows
from the tank to the distribution valves B (Fig 1). Fluid that is not
required for use by the boom or spraygun is returned to the tank
through the bypass line and agitation nozzle F (Fig 1). When the boom
valve is open, fluid flows to the boom D (Fig 1). When the spraygun
valve is open and the red handle on the spraygun is depressed, fluid
flows to the spraygun C (Fig 1). If the boom and spraygun valves are
off and the pressure valve is set too low to handle the output from the
pump, the safety valve E (Fig 1) opens to allow the fluid to return to the
tank.
A. 500/600 Pump
B. Distribution Valves
C. Spraygun
D. Boom
E. Safety Valve
F. Agitation
Fig. 1
A
B
C
D
E
TANK
F
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