43HARDI
®
NAVIGATOR 550M, 800M, 1000M CENTRIFUGAL OPERATOR'S MANUAL
Cleaning the tank
1. Dilute remaining spray liquid in the tank with at least 10 parts of
water and spray the liquid out in the fi eld you have just sprayed.
Note: It is advisable to increase the forward speed (double if
possible) and reduce the pressure. For ISO F110 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
necessary.
4. Remove and clean tank fi lters and suction fi lters. Be careful not to
damage the mesh. Replace suction fi lter lid. Replace fi lters 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 fi eld, stop the pump and fi ll
at least 1/5 of the tank with clean water. Note that some chemicals
require the tank to be completely fi lled. 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, only for a few seconds. Rinse
inside of tank, again letting the pump run dry again only for a few
seconds.
Note: Do not run pump dry for longer than 3 seconds. Otherwise
severe damage to the pump will occur.
9. Stop the pump. If the chemicals used have a tendency to block
nozzles and fi lters, remove and clean them now.
10.Replace all the fi lters and nozzles and store the sprayer. If, from
previous experiences, it is noted that the solvents in the chemicals
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.
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