Nozzle Flow Check

PC22403-UN-01APR16

A - Test Speed

B - Rate

C - Start Button

Always fill solution tank with clean water to perform nozzle flow check.

Enter conditions that are comparable to normal operation. Larger dispense volumes result in longer but more accurate calibration tests.

Before starting test, verify that the Low Limit in Setup PWM is correct. Too low a value may cause the test to fail.

Perform Nozzle Flow Check to test an application rate at a desired speed without the machine moving. The following items can be determined:

• If actual application rate meets the target application rate at a given speed.
• The actual flow rate of an implement section.
• Whether the nozzles are worn.
• Spray control valve pressure at a desired speed and application rate.

Turn master switch off or leave Diagnostics at any time to cancel test.

Speed and rate can be changed while test is running.

1. Enter Test Speed (A) and Rate (B).

2. Turn on master switch.

3. Select Start button (C).

If volume is higher than expected and pressure is lower than expected, nozzle tips could be worn.

If pressure is higher than expected for the given output, nozzle tips could be partially plugged. Drops in pressure can occur between section shutoff valves and nozzle tips. This is normally only associated with high flow rates.