FIG. 14
1. Hydraulic pump hoses supplied on the sprayer
include 1 - 1/2” line and 1 - 3/4” line. The 1/2” hose
is the hydraulic supply (in/pressure) and the 3/4”
hose is the return (out/non-pressure).
NOTE: It is recommended for optimal pump performance that
the 3/4” return line connect directly to the tractor hydraulic
reservoir (not tractor SCV port). Doing so eliminates possible
back pressure restriction on the 3/4” return line. Excessive back
pressure restriction can cause hydraulic orbital motor damage/
failure.
2. Proper sprayer pump disengagement. When shutting
off the pump, move the selector to the FLOAT
position to allow the centrifugal pump to come to a
gradual stop. Standard spool valves, which are
found on all tractor hydraulic systems, can cause
potentially damaging high peak pressures in the
hydraulic system when closed, because of abrupt
shutoff of oil flow in both the supply and return lines.
3. Close and lock down the bypass adjusting screw in
the hydraulic motor.
Switch rate controller to manual and press the “+” button on
TeeJet or “Increase” button on Raven, hold for 8 seconds. Then
press the “-” button on TeeJet or “Decrease” button on Raven
for 2 seconds.
Set the tractor hydraulic flow control valve for minimum
hydraulic oil flow to the remote outlet (Tortoise position).
Start the tractor and allow the hydraulic oil to circulate for
approximately 10 to 15 minutes or until adequately warmed.
Prime the centrifugal pump with all valves open.
Open the sprayer control regulating valve and the boom shut-
off valves.
Slowly adjust the tractor hydraulic flow control valve until the
desired boom pressure is attained.
4. NOTE: See manufacture pump operators manual
for further setup and maintenance.
A G S P R A Y . C O M 6
3. Push down “inner” fold switches to unfold inner
wings. Note: On 90 foot models extend outer booms
before inner wings are completely unfolded. Failure
to do so can cause damage to outer boom section
resulting from the wings hitting each other in the
center. (see figure 14)
4. Hold down on outer fold switches to fold-over outer
wings to spray position. Note: Extend the cylinder
completely when extending the outer boom to eliminate
outer wing vibration. To ensure the wing is locked down
hold the toggle switch down for 5 seconds after the
boom is fully extended. (see figure 15)
5. Hold down on “main lift” boom switch to lower boom
to desired spray height. To ensure optimal boom
performance never run boom in fully down position.
Doing so eliminates boom ride accumulator.
6. Reverse the above procedure when converting from
field to transport configuration.
IMPORTANT: Once tower cylinder bottoms out raise 1”.
IMPORTANT: Never operate boom in fully raised position. The
Boom lift is designed with lock out arms to disengage boom
center pivot suspension system for transport when in the fully
raised position. Doing so will void warranty and cause boom
fatigue. Lower boom until center section clears lock out arms
for field operation.
WARNING: Outer fold Booms are a vertical fold and once wing
goes past 90° if Air is present in hydraulic system the wing could
gravity free fall causing possible personal or boom damage.
The sprayers are hydraulically charged at the factory, but the
following procedure should be followed on an annual basis to
prevent possible boom drop, from transport position, raise “tilt”
wings out of transport saddle, swing the “inner” fold booms 45°
out from sprayer frame. Raise “outer” fold wings 80° from inner
wing, lower “outer” fold wings to saddle transport position.
Repeat 3 times. This cycles the hydraulic lines to prevent air pock-
ets in the hydraulic system to prevent “boom drop”.
PUMP OPERATION
