Operation - Using The Sprayer; Step One: Assess Wind Conditions And Clear Work Area; Step Two: Check And Set Accumulator Pressure - North Star 5042373 Owner's Manual

Step One: Assess wind conditions and clear work area.

Before you decide to spray, you must determine whether wind conditions are suitable. You must also
restrict access to the work area to ensure the safety of bystanders.
Do not spray if wind speeds are greater than 4 MPH or if there are bystanders in the intended spray area.
1. Assess wind speed
2. Clear work area

Step Two: Check and set accumulator pressure.

Using an air pressure gauge, check the pressure in the accumulator. The accumulator dampens water
pulsations created by the pump's diaphragms. This provides smoother water delivery to the nozzle.
The accumulator's pressure must be adjusted according to the operating pressure. See table below.
Pump Operating Pressure
Locate the pressure valve on the accumulator, and:
1. Check the pressure in the accumulator with an air pressure gauge.
2. Add or remove air and recheck with air pressure gauge to achieve correct pressure.
Operation – Using the Sprayer
WARNING
Assess weather conditions to ensure that it is not too windy to spray.
DO NOT SPRAY if wind speeds are greater than 4 MPH.
Visible indication of wind speed:
If leaves are in constant motion or there is any branch movement, DO NOT
spray because the wind is too strong.
Clear the work area of all bystanders and pets.
Restrict access by the public for the period recommended on chemical label.
PSI
29-73
73-145
145-363
Accumulator Inflating Pressure
PSI
29
29-73
73-102
Pressure Valve
23
Accumulator