Using Cleaning Agents; Applications And Methods; Techniques - Pressure-Pro PP3425H Mode D'emploi

Cold water operation
4.2.2
1. Turn the engine switch to the on position, as well
as the fuel valve (if supplied with) and adjust
choke as needed then start engine with the recoil
rope.
2. Unlock the spray handle and squeeze the trigger.
3. High pressure water is sprayed.
4. Release the trigger and lock the spray handle
when not in use.
4.3

Using cleaning agents

The machine comes with a built-
in injector which requires the
soap nozzle to be installed.

5 Applications and Methods

5.1

Techniques

5.1.1 Soaking
5.1.2 Detergent and Foam
5.1.3 Temperature
5.1.4 Mechanical Effect
5.1.5 High Water Flow or
High Pressure
6
CAUTION!
Never allow cleaning agent
to dry on the surface to be
cleaned. The surface may be
damaged.
Efficient high pressure cleaning is achieved by following a few
guidelines, combined with your own personal experience of specific
cleaning tasks. Accessories and detergents, when correctly chosen,
can increase the efficiency of your pressure washer. Here is some
basic information about cleaning.
Encrusted or thick layers of dirt can be loosened or softened up by a
period of soaking. This is for example an ideal method within
agriculture – for example, within pig sties. The ideal soaking method
can be achieved by using foam or simple alkaline detergent. Let the
product lie on the dirty surfaces for about 30 minutes before pressure
washing. The result will be a much quicker high pressure cleaning
process.
Foam or detergent should be applied onto dry surfaces so that the
chemical product is in direct contact with the dirt. Detergents are
applied from bottom to top, for example on a automobile bodywork, in
order to avoid "super clean" areas, where the detergent may collect in
higher concentrations and streams downwards. Let the detergent work
for several minutes before rinsing and never let it dry on the surface
being cleaned.
Detergents are more effective at higher temperatures. Greases, oils and
fats can be broken down more effectively at higher tempera-tures also.
Proteins can be cleaned at temperatures of around 60°C (140°F). Oils
and traffic film around 70°C (158°F), and grease can be cleaned at
80°-90°C (176-194°F).
In order to break down tough layers of dirt, additional mechanical effect
may be required. Special lances and rotary or wash brushes offer this
supplementary effect that cuts through dirt.
High pressure is not always the best solution and may also damage
surfaces. The cleaning effect also depends upon water flow. Pressure
levels of around 100 bar (1450 psi) may be sufficient for vehicle
cleaning (in association with hot water) and higher fl ow levels give the
ability to rinse and flush away large amounts of dirt easily.