Maintenance - Elektro Maschinen HDEm 662 Bedienungsanleitung

U S I N G T H E M U LT I R E G A D J U S TA B L E
NOZZLE.(FIG. 14)
Pressure must be selected with the gun
switched off.
Low pressure washing and detergent suc-
tion.
Move the nozzle forward.
Washing at high pressure with a concentrated
jet of water
Turn the nozzle in an anti-clockwise direction.
Washing at high pressure with a fan-shaped
jet of water
Turn the nozzle in a clockwise direction.
USE OF THE DOUBLE LANCE (fig. 15).
The double lance allows the operator to select a
low or high pressure jet. The pressure is selected
with the gun in pos. 1. High pressure: pos. 2. Low
pressure and detergent intake: pos. 3.
REGULATING PRESSURE.
This chapter concerns only those models pro-
vided with the "pressure regulating" device.
The pressure regulator, fig. 16, allows the operator
to adjust the working pressure. When knob C is
turned in an anti-clockwise direction (B) (mini-
mum), the working pressure is reduced.
ADVICE ON USING DETERGENTS
This cleaner has been designed for use with the
detergents supplied or recommended by the
manufacturer.
The use of other detergents or chemicals may
influence the safety of the cleaner.
1) For environmental compatibility, we recommend
a reasonable use of detergents, according to the
instructions on the pack.
2) From the range of recommended products,
choose the one most suited to the washing job to
be done and dilute it with water according to the
instructions on the pack or in the catalogue of the
detergents most suited for the type of hot or cold
water cleaner.
3) Ask your dealer for the detergents catalogue.
OPERATING PHASES FOR CORRECT CLEANING
WITH DETERGENTS.
1) Prepare the solution of detergent at the con-
centration most suitable for the type of dirt and
the surface that is to be washed.
2) Start the cleaner, turn on the detergent tap (if
present), switch on the detergent suction control on
the lance (fig. 14) and spray the dirty surface with
the diluted product, working from bottom to top.
Let it react for a few minutes.
3) Rinse the whole surface well from top to bottom
at high pressure.
4) After using with detergent, flush out the intake
circuit; place the detergent suction hose (fig. 12)
in a tank of clean water and let the pump run for
1 minute with the dosing tap turned fully on and
the lance in detergent delivery condition.

MAINTENANCE

ONLY THE OPERATIONS AUTHORIZED IN THIS
INSTRUCTIONS MANUAL MAY BE CARRIED OUT BY
THE USER.
ALL OTHER OPERATIONS ARE FORBIDDEN.
For maintenance of the high pressure pump, the
electrical parts and all parts with a safety function,
you must apply to our technical service centre.
Disconnect the machine from the power and water
supply before carrying out any maintenance jobs.
Close the water supply tap (see chapters on con-
necting to the electricity and water mains). Once
maintenance has been completed, ensure that the
closing panels have been correctly reassembled
and anchored with the screws provided before
reconnecting the cleaner to the mains.
Failure to do so may cause a risk of electric
RECAUTIONS AGAINST FROST.
The cleaner must not be exposed to frost.
If the cleaner is left in premises where it is exposed
to frost, when work is over or for storage, antifree-
ze must be used to prevent serious damage to the
hydraulic circuit.
18
shock.