Cleaning The Tank And Liquid System; Cleaning And Maintenance Of Filters - Hardi Ranger 550 Instruction Book

5 - Operation

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 you have
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 in-line pressure filters and clean. Be careful not to damage the mesh. Replace filters when the sprayer is
completely clean.
5. With the pump running, rinse the inside of the tank. Remember the tank roof. Rinse and operate all components and
any equipment that has 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.
7. Start the pump and operate all controls enabling the liquid to come in 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, only for a few seconds. Rinse inside of the tank, again letting the pump run dry.
ATTENTION! Do not run pump dry for longer than 3 seconds. Otherwise severe damage to the pump will occur.
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.
ATTENTION! It is advisable to increase the forward speed (double if possible) and reduce the pressure to 20 psi (1.5
bar) when spraying diluted remaining liquid in the field just sprayed.
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 recommended.

Cleaning and maintenance of filters

Clean filters ensure:
• Sprayer components such as valves, diaphragms and operating unit are not hindered or damaged during operation.
• Nozzle blockages do not occur while spraying.
5.12