Recommendations For Eliminating Air from Solution System

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.

Boom Air Bleed Process

1. 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.

   NOTE: Machine is equipped with spray pipe aspirators to aid with removing air from boom.

   Fill solution tank with approximately 473 L (125 gal.) of water.

2. Unfold and lower boom for access to nozzles.

3. 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.

4. Lower the center section and tilt both boom wings all the way up.

5. Run the sprayer in manual spray mode at 620.6 kpa (90 psi).

6. Cycle sprayer operation through at least three ON-OFF cycles as follows to bleed trapped air from the booms:

   1. Set Master Spray ON/OFF switch to ON and watch for water discharge from open nozzle bodies.

   2. Set Master Spray 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.

7. 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 189-283 L (50-75 gal.) of water remain in the tank.

8. Rotate all nozzle bodies to spray position. Reinstall spray tips previously removed.

NOTE: If solution tank is loaded with a solution other than water and purging boom with water is not feasible operator may tilt booms all the way up and spray for a short distance. This will help remove air from the system.