Note:
Calibrate the sprayer before you start the
spray application; refer to
.
1.
Press the spray-pump switch on the control
console to the O
FF
position.
2.
Adjust the sprayer-pressure with the throttle
valve according to the sprayer nozzle application
rate; refer to
Adjusting the Sprayer Pressure
(page 36)
.
3.
Drive the machine to the job site.
4.
As needed, set the left, center, and right boom
sprayer-control valves to the O
N
position.
5.
Drive the machine and step on the spray-pump
foot switch to turn on the spray pump; refer to
Spray-Pump Foot Switch (page 15)
.
Important:
Keep your hands on the traction
control levers; use the spray-pump foot
switch. Use the spray-pump switch on
the control console for mixing the tank(s),
transferring fluid between tanks, and
spraying with the hand wand.
Note:
Step off the spray-pump foot switch to
shut off spray pump.
6.
When you finish spraying, move the boom
sprayer-control valves are in the O
FF
position.
Note:
If you need to continue to mix the sprayer
tank contents, open the throttle valve, and use
the spray-pump switch on the control console.
Spraying Tips
•
Do not overlap the effective spray area that you
have previously sprayed (
g312650
Figure 44
1.
Overlap area
2.
Effective spray area
•
Watch for plugged sprayer nozzles.
•
Move the boom sprayer-control valves to the O
FF
position to stop the spray flow before stopping the
motion of the machine. Once stopped, leave the
motion-control lever in N
EUTRAL
and leave the
sprayer-pump switch in the O
N
position.
•
You obtain better results if the machine is moving
when spray controls are turned O
N
.
•
Ensure adequate pump pressure for proper spray
distribution by push the tank-agitation lever to the
O
FF
position.
•
Watch for changes in the application rate.
Changes in the application rate indicate that your
ground speed has changed beyond the operating
range of the nozzles or there is a problem with the
sprayer system.
Note:
When the tank is nearly empty, the tank
agitation may cause foaming of the chemical solution
in the tank. In this case, throttle valve to the O
FF
position. Alternatively, if an anti-foaming agent
compatible with the existing chemical—add the
anti-foaming agent according to the manufacturer’s
instructions.
Spraying with the Spray Wand
WARNING
The spray wand traps liquids under
high pressure, even when engine is off.
High-pressure spray discharge could cause
serious injury or death.
•
Keep clear of the nozzle and do not direct
the spray or stream from the wand at
people, pets, or non-work area property.
•
Do not direct the spray at or near
electrical-power components or source.
•
Do not repair the spray wand, hoses, seals,
nozzle, or other wand components; always
replace them.
•
Do not attach the hoses or other
components to the nozzle at the end of the
spray wand.
•
Do not attempt to disconnect the spray
wand from the machine while the sprayer
system is pressurized.
•
Do not use the spray wand if trigger lock is
damaged or missing.
•
Rotate the spray-wand lock to the O
FF
position when job is complete.
1.
Move the machine to a level surface, move
motion-control lever to the N
EUTRAL
position,
and engage parking brake.
39
