Ag Spray Equipment LA9000 Liquid Applicator - Manual (Page 5)

3. Connect wiring harness if using hydraulic pump with rate control.
4. Grease Applicator (Refer to Mainentance).
5. Before road travel, install all locking collars on toolbar cylinders and
safety pins on wings.
6. Remove locking collars as needed to maintain a depth of 4 to 5
inches. Constant down pressure on main lift is not recommended
(weight of toolbar will keep unit in the ground). Leave hydrualic
selector in neutral for field operation.
7. Remove safety pins on wing cylinders. Wing cylinders remote will
run in constant while down (Figure 7).
The Applicator is equipped with adjustable down pressure relief valve
on wing cylinders. The valve is preset at 800 PSI. This may be adjusted as
needed. The relief valve is located under tongue, and requires an allen
wrench to adjust (clockwise to increase pressure and counterclockwise
to decrease pressure. Figure 8).
8. After unfolding main wing, engage hydraulic lever in “constant
pressure.” This is necessary to allow wings to maintain constant
depth and follow uneven terrain, as well as the ability to “gullwing”
(Lift both wings evenly when turning. See #9).
9. Field Operation: When you come to the end of the field.
1. Lift main section
2. Pull back on main wing lever long enough to lift both
wings slightly (“gullwing”).
3. After turning, lower main section and wing section
and return wing hydraulics to constant pressure.
10. Check and clean screens as needed.
11. Pump Settings
Optional Ground Drive Pump
11a - Remove tranport pin
11b - Use John Blue pump setting slide chart. Loaded radius is 9.75 and
sprocket ratio is 32 drive and 18 driven.
11c - Set pump to recommended setting.
Optional Hydraulic Drive Pump
a. Hydraulic pump hoses supplied on the applicator
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.
b. Proper hydraulic 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.
c. Close and lock down the bypass adjusting screw in the hydraulic
motor (if applicable).
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 4 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.
NOTE: See manufacture pump operators manual for further setup
and maintenance.
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