Control Unit; Bk Control Unit; Evc Control Unit; Clean Water Tank (Optional) - Hardi MASTER PRO VHH Instruction Book

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3 - Description
(E) External Filling Device valve (optional)
The valve is used when filling from an external tank or reservoir.
Activating valve starts/stops the filling process. Note that the suction valve must be closed for maximum filling capacity.
Suction from external tank
μ
ATTENTION! If a valve is too tight to operate - or to loose (= liquid leakage) - the valve needs to be serviced. Please see
the section 'Maintenance' for further information.

Control unit

The sprayer is equipped with either a BK control unit or an EVC control unit.
The system is based on EVC - Electrical Valve Control. The ON/OFF is linked to the section valves, which is results in a very
quick response to ON/OFF. The operating unit is constructed of modules and is electrically controlled via a remote control
box.
With HARDI-MATIC that ensures a constant liquid volume per hectare (l/ha) at varying forward speed within the same gear
when the number of P.T.O. revolutions are between 300-600 r/min.

BK control unit

The BK control unit consists of; pressure agitator valve, safety valve, main ON/OFF valve, pressure filter with pressure gauge,
distribution valves with pressure equalization and HARDI-MATIC pressure control valve.

EVC control unit

EVC - Electrical Valve Control. The ON/OFF is linked to the section valves, which results in a very quick response to ON/OFF.
The operating unit is of modular design and is electrically controlled via a remote control box. The unit has a built-in HARDI
MATIC.

Clean water tank (optional)

The water in this tank is for hand washing, cleaning of clogged nozzles
etc. Only fill this tank with clean water from the well.
The clean water tank is placed on the sprayer's left side, right behind the
MANIFOLD valves.
Capacity: approx. 15 litres (3.3 Imp. gal).
±
WARNING! Although the clean water tank is only filled with clean
water, this water must NOT be used for drinking.
16

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