Calibrating The Agitation Bypass Valve; Pump - Toro 41593 Operator's Manual

7. Record the reading on the pressure gauge.
8. Turn off 1 of the booms using the appropriate boom
switch.
9. Adjust the boom bypass valve (Figure 24) on the
backside of the boom control valve for the boom you
turned off until the pressure reading on the gauge is the
same as it was in step 7.
1. Boom bypass valves
10. Turn the boom on and off to verify the pressure does
not change.
11. Repeat steps 9 through 11 for the other booms.
12. Drive the sprayer at the desired speed while spraying
and turn each boom off individually.
Note: The pressure on the gauge should not change.
Calibrating the Agitation
Bypass Valve
Service Interval: Yearly—Calibrate the agitation bypass
valve.
Important: If you have the Pro Control™ ™ ™ XP Spray
System installed turn the power switch to Off now. The
following procedure should be performed only when the
controller is not powered.
1. Select an open flat area to perform this procedure.
2. Fill the spray tank with clean water.
3. Verify the agitation control valve is open. If it has been
adjusted open it completely at this time.
4. Set the parking brake and start the engine .
5. Move the throttle lever to the Fast position.
6. Set the pump switch and the agitation switch to the
On position.
G012935
1
Figure 24
7. Use the application rate switch to adjust the pressure
on the gauge reads 689 kPa (100 psi).
8. Turn the agitation switch to the Off position and read
the pressure gauge.
•
If the reading remains at 689 kPa (100 psi), the
agitation bypass valve is properly calibrated.
•
If the pressure gauge reads does not read 689 kPa
(100 psi), continue to the next step.
9. Adjust the agitation bypass valve (Figure 25) on the
backside of the agitation valve until the pressure
reading on the gauge is 689 kPa (100 psi).
G014358
1. Agitation bypass valve
10. Turn the pump switch to the Off position. Shift the
throttle lever to the Idle position and turn the ignition
Off.

Pump

The pump is located near the back of the tank on the left
side (Figure 26).
g018934
1. Pump
27
1
Figure 25
1
Figure 26
2. Grease fitting
2