probst EASYCLEAN EC-60 Operating Instructions Manual page 124

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Do not remove the protections of the moving parts.
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Do not operate on pipes containing fluids under pressure.
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Do not carry out maintenance on the pump if it is working.
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Observe the instruction of chapter "INTENDED USE".
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Do not change in any way the pump installation conditions and in particular do not change
its fixing and hydraulic connections.
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Do not deactivate or tamper with the controls, the safety devices and the pressure limiting/
adjusting valve.
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The working pressure must never overcome the maximum value that is intended for the pump
(see also the paragraph "TECHNICAL FEATURES".
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The connection to the mains of the machine with the built-in pump must be carried out by a
Skilled Engineer according to the standard which are valid in the relevant country.
To carry out correctly what described below, refer also to the use and maintenance manual
of the machine with the built-in pump.
a) Set the delivery pressure to zero, by keeping the delivery circuit opened. In case of a water
cleaner, for instance, you just need to press the lever of the water gun.
b) Operate the pump to allow its priming.
c) If there is the possibility to adjust the delivery pressure, set the wished value. In the LW-
K, ZW-K and AX models, the pressure adjustment can be obtained by operating on the
knob (15): by rotating it in clockwise direction the pressure increases and by rotating it in
counter-clockwise direction it decreases.

cAuTION
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Never operate on the pressure limiting/adjusting valve not to alter the calibration: operate
on it only by using the knob (15).

cAuTION
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To allow a fast pump priming, operate as per point a) each time the pump is emptied from the
fluid.
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In the models LW-K, ZW-K and AX and in all those applications where the by-pass of the
pressure limiting/adjusting valve is connected to the pump suction, do not keep the flow rate
side closed for more than five minutes in order to avoid that the water recirculating in the
pump head overheats with the subsequent gasket damaging.
4.3 OPERATION WITh DETERGENT
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cAuTION
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Use only the detergents recommended by the Producer of the machine with the built-in
pump.
In particular, never suck fluids containing solvents, petrol, thinners, acetone and combustible
oil, because the sprayed product is highly flammable, explosive and toxic.
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Carefully read all the prescriptions and warnings on the label of the detergents supplied with
the pump in order to take the suitable measure not to generate dangers for you and for the
environment.
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Preserve the detergents in a safe place that cannot be reached by children.
In case of contact with the eyes, was immediately with water and apply to a doctor by
bringing with you the detergent package.
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