Agri-Fab 45-02933 Manual Del Usuario página 7

oPeraTIon
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 leak should occur, thread tape may be used
to better seal the fitting.
oPeraTor on-oFF swITCH
This switch is connected in line to the wiring assembly and
turns the pump motor on or off.
PumP Pressure swITCH
The pump is equipped with a pressure switch. The pressure
switch will temporarily turn off the electrical power to the pump
at a factory predetermined high pressure point of 60 PSI. If
the flow demand is very low, the pump may repeatedly reach
this high pressure point and the switch will cause "cycling"
(the pump cycles on and off rapidly). This is not a problem
unless the pump is subject to continuous rapid cycling for
long periods of time.
on-oFF aDJusTmenT oF Boom noZZles
The sprayer is equipped with a "Y" fitting containing a boom
valve and a bypass valve. The boom valve turns the flow
on or off to the boom nozzles. Open it completely when
spraying with the boom. Close it completely if you wish to
use only the spray gun.
aDJusTInG THe oPeraTInG Pressure
The bypass valve on the "Y" fitting controls the flow to the
hose that returns fluid to the tank. T he amount of flow through
this hose determines the operating pressure when the boom
or the spray gun is in use. Adjust the bypass valve to obtain
the desired spray pattern. If misting occurs, open the bypass
valve more until the misting is eliminated.
aDJusTInG THe sPraY Gun noZZle
Turn the nozzle on the spray gun to adjust the spray from
a cone shaped fine mist to a straight stream. Control the
spray gun operating pressure with the bypass valve on the
"Y" fitting. Maximum spray gun pressure can be attained
when the boom is shut off.
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 nozzles are adjusted so that the
openings point straight down.
enGlIsH
usInG THe sPraYer
1. Determine the application rate (gallons per 1,000 sq. feet
or gallons per acre) based on the chemical manufacturers
recommendations.
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. Determine the appropriate speed at which to travel, based
on the chosen pressure setting and the recommended
application rate. Refer to the chart on page 9.
4. Determine the throttle setting for attaining a specific
speed by marking off 100, 200 and 300 feet intervals. T he
speed chart on 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.
5. To set the operating pressure add plain water to the
sprayer tank for testing. Open the boom valve completely.
For maximum usable spraying pressure, close the bypass
valve completely and then start opening the valve until
misting stops and a normal spray pattern is obtained.
Continue opening the valve if a lower spraying pressure
is desired. If the spray pattern begins to break up, then
the pressure is too low.
6. Add the chemical solution to the tank, following the
product instructions.
7. 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.
8. 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.
FIGure 11
7
40"
80"
14"