33HARDI
®
ATV SPRAYER DIAPHRAGM 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. The Self-Cleaning Filter can be fl ushed by removing the bypass
hose from the bottom of the fi lter. Stop the pump and remove the
hose. Start the pump for a few seconds to fl ush the fi lter. Be careful
not to lose the restrictor nozzle.
9. Drain the tank and let pump run dry. Rinse inside of tank, again
letting the pump run dry.
10.Stop the pump. If the chemicals used have a tendency to block
nozzles and fi lters, remove and clean them now. Check also for
sediment on the pressure side of the safety valve for the Self-
Cleaning Filter.
11.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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