Wylie Defender 3 Pt Sprayer, Operator'S & Parts Manual, Page: 16 / 34

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Attach the flat fold boom to the mount bracket with the U-
bolts at the desired height. Fit the supply hose to the “T”
hosebarb and secure with a hose clamp.
Preparing Sprayer for Operation
Add about 10 gallons of water to the spray tank. Do not
add any chemical until the sprayer has been checked for
proper operation. Do not install spray tips in the nozzle
bodies until the lines have been flushed.
Open the gate valve located beside the line strainer. Check
for any leaks from the tank to the pump. Any fluid leak on
the suction side of the pump will result in an air leak when
the pump is started.
Check to see that the Hypro control valves are in the “off”
position (see Figure B4). Start the engine to engage the
pump. Water should be returning to the tank through the
return line.
In order to check the operation of the boom or boomless
nozzles, rotate the valve handle “up” that supplies the
boom. Water should be flowing from the boom nozzles
or the boomless nozzle. Allow the water to flow for a few
moments to flush any debris from the lines.
Turn the boom off and rotate the valve handle of the valve
that supplies the trigger gun. Engage the trigger gun. Check
for any leaks in the sprayer gun system.
The operating pressure is set by adjusting the pressure relief
valve (green knob) located on the top of the Hypro control
valve. Tighten the pressure relief valve to increase the pressure.
Example: To set the pressure for the trigger gun, engage
the valve handle and the trigger gun. Note the pressure
gauge. To increase pressure, screw the pressure adjusting
knob “clockwise”; to decrease pressure, screw the knob
“counterclockwise”.
Note: Maximum pressure for the Hypro roller pump
is 150 psi.
Install the tips, screens and caps as shown in Fig. B6. Make
sure the spray pattern of the tip is in line with the boom so
the spray pattern will overlap between adjacent tips. The tip
screen is the final filter before the fluid passes through the
tip. If a single nozzle does not spray a proper pattern, the
tip screen should be checked and cleaned.
Figure B2
Boom Mounting
LGS-50 Insp. & Setup
Tee Hosebarb >
Boom Mount >
< Open Gate V
alve
Figure B3
Open Gate Valve
Figure B4
“Off” Control Valves “On” Control Valves
Green Knob >
Figure B5
Adjusting Pressure Relief Valve
Pressure Adjusting >
Relief Valve --
Green Knob
Always wear protective clothing, i.e. apron, face shield,
gloves and respirator, when handling any chemicals.
Failure to do so will risk chemical exposure to your
body resulting in sickness, injury or possibly death.