Operation Manual

17
UNO / DUO BOOSTER EXTENDED
Original Instructions
For foam cleaning you will
have to attach a special foam
equipment. Insert the suction
hose of the injector into the
foam detergent.
General rules for
addition of detergents
Nilfi sk-ALTO cleaning
equipment can be used for all
detergents and disinfectants,
which are suitable for high
pres sure cleaning according to
the prescriptions of the supplier.
(If using external injector, the
pH-value should be between 4
and 14. If using internal addition
of chemicals, the pH-value
MUST be between 5.5 and
8.5). Acid and lye should not be
applied in a concentrated form.
Carefully observe the
prescriptions and guidelines
of the supplier, also the rules
concerning safety clothing and
drainage facilities.
Detergents which are not
exactly prescribed for use in
conjunction with high pressure
cleaning must only be used
upon a previous approbation
from Nilfi sk-ALTO and the
supplier.
The use of Nilfi sk-ALTO
detergents ensures that
machines, accessories and
detergents match, which is the
con di tion of an optimal solution
of a cleaning task.
Nilfi sk-ALTO can offer you a
wide range of effi cient agents
for cleaning and disinfection.
The products are composed
of substances which combine
effi ciency and environmental
considerations at one and the
same time.
5.3 Detergents
(continued)
Attach the foam lance on the
spray handle and now you are
ready for foam application.
Upon the application open
the by-pass cock of the foam
injector and replace the foam
lance by a spray lance, and you
are ready for cleaning.
5.4 Working methods
Your high pressure washer has
been developed for cleaning
according to the so-called
»2-step method«.
However, your high pressure
washer must be equipped
with an external detergent
injector.
STEP 1
Application of detergent
STEP 2
High pressure cleaning
In practice the working process
is laid down in accordance with
the actual job, but as a starting
point the following working
method can be described for a
job:
1. Apply detergent under low
pressure. The dosage is
chosen according to the
job which is to be carried
through, and the adjustment
is made on the dosing unit.
2. Await acting time. Let the
detergent act on the dirt/
surface for a short time
prior to pressure cleaning -
usually a few minutes.
3. High pressure cleaning.
Clean all surfaces under
high pressure.
4. Rinse afterwards, if
necessary. To make sure
that residual impurities are
removed from the surface.
