Quick Reference - Cleaning; Cleaning The Tank And Liquid System - Hardi NAVIGATOR PRO Original Instruction Book

5 - Operation

Quick reference - Cleaning

In the following diagrams handle positions for different options are described.
*designates an optional function.

Cleaning the tank and liquid system

1. Dilute remaining spray liquid in the tank with at least 10 parts of water and spray the liquid out in the field just sprayed.
2. Select and use the appropriate protective clothing. Select detergent suitable for cleaning and suitable deactivating
agents if necessary.
3. Rinse and clean sprayer and tractor externally. Use detergent if necessary.
4. Remove tank and suction filters and clean. Be careful not to damage the mesh. Replace suction filter top. Replace filters
when the sprayer is completely clean.
5. With the pump running, rinse the inside of the tank. Don't forget the tank roof. Rinse and operate all components and
any equipment that have been in contact with the chemical. Before opening the distribution valves and spraying the
liquid out, decide whether this should be done in the field again or on the soakaway.
6. After spraying the liquid out, stop the pump and fill at least 1/5 of the tank with clean water. Note that some chemicals
require the tank to be completely filled. Add appropriate detergent and/or deactivating agent, e.g. washing soda or
Triple ammonia. Special detergents for sprayer cleaning is recommended as some also lubricate ball valves etc.
7. Start the pump and operate all controls enabling the liquid to come into contact with all the components. Leave the
distribution valves until last. Some detergents and deactivating agents work best if left in the tank for a short period.
Check the label.
8. Drain the tank and let the pump run dry. Rinse inside of the tank, again letting the pump run dry.
9. Stop the pump. If the pesticides used have a tendency to block nozzles and filters, remove and clean them
immediately.
10. Replace all the filters and nozzles and store the sprayer. If, from previous experiences, it is noted that the solvents in the
pesticide are particularly aggressive, store the sprayer with the tank lid open.
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ATTENTION! It is advisable to increase the forward speed (double, if possible) and reduce the pressure to 1.5 bar (20
psi) when spraying diluted remaining liquid in the field just sprayed.
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ATTENTION! If a cleaning procedure is given on the chemical label, follow it closely.
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ATTENTION! If the sprayer is cleaned with a high pressure cleaner, lubrication of the entire machine is recommended.
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