49
HARDI
MEGA 230 / 350 CENTRIFUGAL OPERATORS MANUAL
Cleaning
1. Dilute remaining spray liquid in the tank with at least 10 parts water
and spray the liquid out in the field you have just sprayed.
NOTE:
It is advisable to increase the forward speed (double if pos-
sible) and reduce the pressure. For S4110 nozzles, pressure
may be reduced to 22psi (1.5 bar).
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 neces-
sary.
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. Remember the
tank roof. Rinse and operate all components and any equipment that
has been in contact with the chemical.
6. After spraying the liquid out again in the field, stop the pump and fill at
least 1/5 of the tank with clean water. Note that some chemicals re-
quire the tank to be completely filled. Add appropriate detergent and/
or deactivating agent, eg. Washing soda or Triple ammonia.
NOTE:
If a cleaning procedure is given on the chemical label, follow
it closely.
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 pump run dry. Rinse inside of 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 now.
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.
NOTE:
If the sprayer is cleaned with a high pressure cleaner we
recommend lubrication of the entire machine.
