Hardi Ranger Series Instruction Book

Contents

5 - Operation5.17ATTENTION! The rinsing nozzles cannot always guarantee a 100% cleaning of the tank. Always clean manually witha brush afterwards, especially if crops sensitive to the chemical just sprayed are going to be sprayed afterwards!ATTENTION! It is advisable to increase the forward speed (double if possible) and reduce the pressure to 20 psi (1.5bar).The incorporated flush tank can be used for two different purposes.A. In-field diluting of remaining spray liquid residue in the spraying circuit for spraying the liquid in the field, before cleaningthe sprayer. This cleaning procedure is divided in two main steps:Cleaning of the liquid system:1. Empty the sprayer as much as possible. Close the bottom Pressure Manifold valve (no agitation) and spray till air comes outof all nozzles.2. Turn Suction Manifold valve towards “Flush tank” and top Pressure Manifold valve to “Spray” with control unit turned “Off”3. Engage and set the pump at approximately 300 r.p.m.4. When 1/2 of content in flush tank is used, turn Suction valve towards “Main tank” and operate all valves on the pressureside of the system, so all hoses and components are rinsed. If equipped with HARDI® FILLER, open bottom valve, engagethe hopper rinsing device and close it again when clean water comes out. With HARDI® FILLER lid closed, squeezeChemical Container Cleaning lever to clean the hopper. Open HARDI® FILLER lid and open the bottom valve again untilthe hopper is empty. When empty, close the HARDI® FILLER bottom valve.5. Turn the top Pressure Manifold Valve towards “Spray” and spray liquid in the field you have just sprayed.Cleaning of Main tank:6. Turn the Suction valve towards “Flush tank” and bottom Pressure valve towards “Tank Rinsing”.7. When another 1/4 of contents in flush tank are used, then turn Suction valve towards “suction from Main tank” and bottomPressure valve “Off” (no agitation).8. Turn top Pressure valve towards “Spray” and spray liquid in the field you have just sprayed.9. Repeat steps 6 - 8 one more time.B. Flushing the pump, operating unit, spray lines, etc. in case of stop in spraying before main tank is empty (e.g. beginning rainetc.).Cleaning of the liquid system before main tank is empty:1. Turn Suction valve towards “Flush tank” and top Pressure valve towards “Spraying” position.2. Close bottom Pressure valve (no agitation).3. Close return valve on Cyclone filter (if fitted) to prevent clean water from diluting tank contents.4. Make sure control unit is switched “On” with all distribution valves open (boom spraying position).5. Engage the pump and spray water from Flush tank in the field until all nozzle tubes/nozzles are flushed with clean water.6. Disengage pump again.ATTENTION! If a cleaning procedure is given on the chemical label, follow it closely.ATTENTION! If the sprayer is cleaned with a high pressure cleaner, lubrication of the entire machine is recommend-ed.Use of flush tank and rinsing nozzlesATTENTION! When flushing the pump before main tank is empty (B - above), make sure all distribution valves areopen, agitation is “Off” and Cyclone filter return is “Off” whenever the pump is running to prevent clean water fromreturning to the tank and diluting the contents.