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HOW TO USE YOUR SPRAYER
BEFORE STARTING
It is important
to test the boom and spray gun with plain
water before using chemicals This will enable you to
check the sprayer for leaks and to set the spray pattern
and nozzle pressure. If a _eak should occur, thread tape
may be used to better seal the fitting.
ON-OFF SWITCH
This switch is connected in line to the wiring assembly and
is used by the operator to turn the pump motor on or off.
PUMP PRESSURE SWITCH
The pump is equipped with a pressure switch. The
pressure switch senses outlet pressure of the pump
and will turn off the electrical power to the pump at a
predetermined
high pressure point (60 PSi). If the flow
demand is very low, the pump may reach this high
pressure point and the switch will cause "cycling" (the
pump cycies on and off rapidly). This is not a problem
unless the pump is subject to continuous cycling within
one second intervals for long periods of time.
ADJUSTING OPERATING PRESSURE
The sprayer is equipped with a "Y" fitting containing
a bypass valve and a boom vane. The bypass valve
controls the flow to the return (bypass) hose The
amount of flow through the return hose determines the
operating pressure when the boom or the spray gun is
in use. Adjust the bypass valve while either the boom or
the spray gun is in use to obtain the desired pressure,
indicated by the pressure gauge The tip chart on page
9 shows how different pressure settings affect boom
application rates.
ON-OFF ADJUSTMENT
OF BOOM NOZZLES
Timeboom valve on the "Y" fitting controls flow to the
boom nozzles. It should be either completely open or
completely closed The boom operating pressure can be
controlled using the bypass valve on the "Y" fitting.
ADJUSTING SPRAY GUN NOZZLE
Turn the nozzle on the spray gun to adjust timespray from
a cone shaped fine mist to a straight stream. Control
the spray gun operating pressure with the bypass valve
on time "Y" fitting. Maximum spray gun pressure can be
attained when the boom is shut off
USING THE SPRAYER
1. Determine the application rate (gallons per 1,000
sq feet or gallons per acre) based on the chemical
manufacturers
recommendations
Use this rate to help
select the pressure setting and tractor speed in the
following instructions
2,
Determine the approximate square footage of the
area to be sprayed and estimate the number of
gallons required This can help avoid unneeded
solution left in the tank
3,
4,
5,
8,
7.
8,
Determine the appropriate speed at which to travel,
based on the chosen pressure setting and the
recommended
application rate. Use the tip chart on
page 9.
To determine the throttle setting for attaining the
appropriate speed, mark off 100, 200 and 300 feet
intervals The speed chart at the bottom of page 9
indicates the number of seconds it takes to travel
these distances Set the throttle and, with a running
start, travel the distances in the number of seconds
indicated by the speed chart Once you have
determined the throttle and gear settings needed,
mark the throttle location so that you can easily
resume the same speed after stopping.
Set the operating pressure. Spray with plain water to
help determine the best setting For best results stay
in the 20 to 30 PSI range. (At 10 PSI the spray pattern
begins to break up, at 40 PSI some drift develops)
Refer to the tip chart on page 9
Add the chemical
solution
to the tank, following
the
product
instructions.
Drive to the starting place for spraying. Set the boom
in position for spraying. Set the throttle at the position
determined in step 4 Flip the sprayer's in-line switch
to the "ON" position to start spraying.
Stay clear of flowers, shrubs and evergreen trees
when spraying weed control solutions to prevent
contact of the solution with these sensitive plants.
CAUTION:
WEAR
EYE PROTECTION,
GLOVES
AND PROTECTIVE
CLOTHING
WHEN
HANDLING
AND WORKING
WITH
LAWN CHEMICALS.
40"
SETTING THE BOOM FOR SPRAYING
The correct positioning of the boom places the nozzles
approximately 40" apart and 14" above the ground. This
gives a spray width of approximately 80" with a slight
center overlap See figure 11.
a
Slide the boom bars out to the ends of the
slots
b
Swivel the boom bars until the nozzles are
approximately 14" above the ground.
c.
Make sure the nozzies are adjusted so that the
openings point straight down
FIGURE
II
9
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