7
Pump
Your pump features an all-metal frame to ensure its long service life and flawless operation. The pump
contains rotating parts mounted in very precise housings. It is therefore INEVITABLE that water fed into pump
remains free of any mechanical contaminants. These contaminants would grind the contact surfaces inside
the pump to increase the play between its internal components and reduce the output pressure.
DANGER
The pump generates a very high pressure at the outlet, making the outlet water jet
destructive to soft items. IT IS PROHIBITED to point the water stream at humans or animals.
Disrespect to this warning may result in devastating effects leading to permanent blindness,
incised wounds, amputation or even death.
CAUTION
High pressure may cause damage to soft and sensitive objects. It is not recommended to use
a high-pressure jet in a close proximity to clean rubber or tires, glass, cohesion less varnish,
plasters or wood. Too strong water jet may alter the surface texture and result in permanent
change of surface finishes. In case of any doubts, it is recommended to test the effect of
pressurised water jet on a sample, where the potential alteration of surface texture has no
impact on the operability or appearance of the particular object.
Setting the jet further from the surface of object being washed will reduce the pressure
generated by water impact and alleviate the aggressive washing effect. On the other hand,
proximity of the jet to the surface will increase the washing performance of water on the
particular surface.
The pump in this system is maintenance-free.
The water inlet neck is provided with a safety screen. The screen
requires regular inspections with respect to potential contamination or
damage. Deposited contaminants will reduce the flow of water supplied,
further resulting in reduced washing performance.
The screen must be replaced with a new one IMMEDIATELY, when
damaged.
Mechanical damage of internal components of the
pump due to water contamination is not covered by the
warranty!
The check valve
serves for draining of a small volume of hot
water from the pump without any intervention by its operator in order
to protect the pump from overheating. There is no overheating hazard
during regular operation, since the pump is fed with a constant supply
of cold water to ensure its cooling at the same time. The process of
excessive heat-up starts, while the engine is still on and the high-
pressure gun is off and there is no water jet coming out of the nozzle.
The pump will switch to the internal water circulation mode
automatically. The constant circulation of water continues, until the
temperature has reached the point for check valve to drain a small
amount of hot water in order to ensure infeed of cold water to cool the
pump down. That is why
the temperature of water fed into
the pump is limited to 40°C only.
If the pressure washer is to
remain idle for more than a few minutes, it should be switched off to
prevent excessive load on the check valve and pump.
.
When using the self-priming water supply mechanism:
Make sure the water inside the supply contained is placed as high as possible, when compared to the water
supply into the pump. Higher elevation difference of water levels helps to simplify the priming and reduce
cavitation - the phenomenon associated with release of air bubbles from the liquid. That may happen inside
the pump, if the vacuum at the inlet is too high - impaired priming.
