Rinse Tank

CAUTION: The rinse tank must always be filled with clean water.

IMPORTANT: Run the pump at low speed during cleaning operations.

A 400 liter rinse tank (A) is fitted to the front of the machine, under the solution tank.

The filling hole is closed by means of cover (B) with 4 vent pipes (C).

The rinse tank must always be filled from the main water supply with clean water to avoid contamination.

A non-return valve is fitted in the suction hose to the pump, which prevents spraying liquid being transferred back to the rinse tank.

For sprayers with a manual suction unit, the four-way valve of the suction unit must be set to "suction from the rinse tank". For sprayers with automatic tank filling, the electric filling valve(s) need(s) to be set on "external filling / suction from rinse tank", by pushing down switch 16 on the control box (with Man/Auto filling switch 14 set on Manual), and the manual suction valve needs to be set on "suction from rinse tank".

The circulation valve is used to determine whether the returned liquid from the pump is pumped to the solution tank or back to the suction side of the pump (circulation).

A-Rinse tank
B-Cover
C-Vent pipes

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NOTE: Dilution of residual liquids on a sprayer with VRS system is explained in "Vacuum Recirculation System (VRS)" in this section.

NOTE: Please refer to recommendation on label of chemical product used for cleaning and operator safety.

To prevent draining undiluted residues, the residual liquid must be diluted with water from the rinse tank and then sprayed onto the field.

Dilution of the residual liquid must take place as follows:

• Close the master shut-off valve, set the four-way valve of the suction unit (A) to "suction of clean water" and set the pressure selection valve (B) to "chemical inductor / rinsing head" in order to close it. For sprayers with an electric suction unit (automatic filling) both the electric filling valve and the manual suction valve need to be set on "suction of clean water".
• Set the circulation valve (C) to "circulation" (E).
• Run the pump at idle speed.
• Set the circulation valve temporarily to "return to the tank" (D) so that hose and valve are also flushed.
• Set the pressure selection valve (B) temporarily to "agitate" so that the agitation line and injectors are also flushed.
• Clean the inside of the tank (see "Internal cleaning of the tank" in this section).
• Set the pressure selection valve (B) to "Pressureless filling".
• When the residual liquid has been sufficiently diluted (1:10), return the pressure selection valve to "chemical inductor / rinsing head" and set the four-way valve of the suction unit of the pump (A) to "suction of spraying liquid" (or set the electric filling valve to "suction of spraying liquid" for sprayers with automatic filling).
• Open the main and boom section valves and spray the diluted residual liquid over the field at a greater speed and a lower pressure in order to avoid over-dosage.
• If the optional transfer valve is fitted, also this valve needs to be opened temporarily to rinse the transfer line. The liquid needs to be caught in a bucket.

A-4-way suction ball valve
B-Pressure selection valve
C-Circulation valve
D-Return pressure regulator to tank
E-Return pressure regulator to suction side of the spraying pump

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The slope which the machine may take while still meeting the statutory requirements for residual liquids is:

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After treatment of the residual chemicals, it is still essential that the machine be thoroughly cleaned.

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The slope which the machine may take while still meeting the statutory requirements for residual liquids is:

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After treatment of the residual chemicals, it is still essential that the machine be thoroughly cleaned.

If it becomes apparent during spraying that there is not enough spraying liquid in the tank, an extra amount of spraying liquid can be prepared using the rinse tank.

• Set the four-way suction valve of the spraying pump (A) to "suction of rinse water", set the circulation valve to "circulation" and set the pressure selection valve to "Pressure-free filling". For sprayers with an electric suction unit (automatic filling) both the electric filling valve(s) and the manual suction valve(s) have to be set to "suction of rinse water".
• Run the pump at idle speed. The spraying tank will now be (re-)filled with water from the rinse tank.
• Add the correct amount of chemicals for the amount of water used and make sure that the concentration is correct! The empty packaging must be cleaned with the rinse head in the chemical inductor or with the rinsing head in the filling opening.

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IMPORTANT: Cleaning the machine with an EMPTY or FULL tank on a sprayer with VRS is described in "Vacuum Recirculation System (VRS)" in this section.

IMPORTANT: Run the pump at low speed during this cleaning operation.

Rinsing of the machine with an empty tank must be carried out as for dilution of the residual liquids (see "Dilution of residual liquids" in this section). The rinsing water can be drained and collected via the drain valve, as described in "Suction unit" in this section, or preferably sprayed out over the field.

If the tank is still partially filled , the machine can be cleaned as follows (for example upon interruption of the spraying work).

• Set the four-way suction valve of the spraying pump (A) to "suction of rinse water" (or for sprayers with automatic filling, set the electric filling valve and the manual suction valve to "suction of rinse water"), set the circulation valve (C) to "circulation" (E) and set the pressure selection valve (B) to "Chemical inductor / rinsing head" in order to close it. This prevents rinse water entering the solution tank and therefore diluting the spraying liquid, while also preventing wastage of rinse water.
• Turn on the pump at low speed and open the main shut-off valve and boom section valves while driving so that all pressure hoses, spraying hoses and nozzles are flushed. This prevents deposits in the hoses, which might result in blocked nozzles. Check that the chemical mix in the solution tank can be left without it settling out or decomposing.

If the filling water is not externally sucked in via the pump, the empty packaging must be rinsed with clean water from the rinse tank. This can be done using the rinse head in the filling opening or in the chemical inductor.

A-4-way suction ball valve
B-Pressure selection valve
C-Circulation valve
D-Return pressure regulator to tank
E-Return pressure regulator to suction side of the spraying pump

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• Set the four-way suction valve of the spraying pump (A) to "suction of rinse water" (or for sprayers with automatic filling, set the electric filling valve and the manual suction valve to "suction of rinse water"), set the circulation valve (C) to "circulation" (E) and set the pressure selection valve (B) to "Chemical inductor / rinsing head". Set the pump to run at idle speed, so that the rinse tank does not empty too quickly.

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CAUTION: Suction valve must be set to "suction of rinse water".

External cleaning of the machine must take place in the field in order to avoid discharge of crop protection chemicals into the mains water network or surface water. To wash the sprayer in the field a spray gun can be connected to connection (A) or a brush with hose reel can be mounted as an accessory connected to connection (B) (see also "Brush with hose reel" and "High Pressure Cleaner" in section "Accessories").

A-Spray gun connection
B-Connection for brush with hose reel

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Two rotating tank rinsing nozzles (A) have been fitted in the tank for internal cleaning of the solution tank. These allow for internal rinsing of the tank using clean water from the rinse tank. See "Tank rinsing system" in this section.

A-Rotating tank rinsing nozzle

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