Check for a suction leak using soapy water at all of the fitting and hose connections.
Eliminate air coming from the nurse system by having a valve at the end of the fill hose. Always close this valve before disconnecting from the sprayer to ensure air doesn’t get into the system.
IMPORTANT: If performing this process after removing machine from storage, it needs to be performed after freezing is not an issue or done with winterizing fluid.
Fill solution tank with approximately 125 gallons of water.
Unfold and lower boom for access to nozzles.
Turn off all nozzle bodies except for the last nozzle body furthest from the machine centerline on all pipe assemblies. Remove the spray tip from these nozzle bodies. There are two assemblies on the inner wings, one on the outer wings, and one on the breakaway sections. One of the outside nozzles on the center section can be turned on.
Lower the center section and tilt both boom wings all the way up.
Run the sprayer in manual spray mode at 620.6 kpa (90 psi).
Cycle sprayer operation through at least three ON-OFF cycles as follows to bleed trapped air from the booms:
Set Master ON/OFF switch to ON and watch for water discharge from open nozzle bodies.
Set Master ON/OFF switch to OFF and allow machine to sit for AT LEAST 15 seconds in OFF mode to allow air to move to high points.
Watch the discharge from each open nozzle body for smooth uniform output. Repeat ON-OFF spray cycle until output is uniform. Continue spraying until only 50-75 gallons of water remain in the tank.
Rotate all nozzle bodies to spray position. Reinstall spray tips previously removed.