F.F. Group PWH 140 PLUS Notice Originale page 11

PWH 140 PLUS
Thermal cut-out that stops the high pressure wash-
er if the electric motor is overheated. The motor is
automatically switched off in the event of an over-
load. The motor can be switched on again after a
cooling down period that can vary.
CONNECTION TO WATER CIRCUIT
Connect the feed hose to the mains water supply
tap (Fig. 5A) and to the hose tail on the cleaner (Fig.
5B). Check that the pressure and quantity of the
water supplied by the mains are sufficient for the
cleaner to work properly: 200 to 800 kPa and maxi-
mum temperature of feeding water 50°C.
Connect the high pressure hose to the cleaner (Fig.
5C) and to the lance (Fig. 6).
WARNING
The cleaner must operate with clean water. Dirty or
sandy water, corrosive chemicals and solvents or
flammables can cause severe damage.
WARNING
Respect the instructions provided by the water utility
company. Current regulations specify that the appli-
ance may not be connected to the drinking water sup-
ply unless a suitable system separator is fitted. Use a
suitable EN 12729 type BA system separator. Water
passing through a system separator is no longer clas-
sified as drinking water.
OPERATING THE UNIT
Control panel
Description of controls on the control panel:
1. On-Off switch (Fig. 8.A)
2. Detergent control switch, if available (Fig. 8.B)
Starting the machine
1. Turn on the water supply tap.
2. Connect the machine to the mains electricity
supply by plugging the plug into the socket (Fig.
7).
3. Start the machine by turning the "On-Off"
switch to position "I" (Fig. 8.A).
4. Press the trigger on the gun and begin washing.
5. To operate the pressure washer with hot water,
turn the "On-Off" switch to the hot water posi-
tion (Fig. 8.A).
NOTE
In pressure washers with the "Total Stop" system, the
motor starts and stops when the lever on the lance
handle is released.
NOTE
To eliminate any impurities or air bubbles from the
water circuit we advise starting the cleaner for the
first time without the lance and letting the water run
out for a few seconds. Impurities could block the noz-
zle and cause malfunction.
Using the rotary head
The high pressure washer can be fitted with a head
with rotary nozzle to clean the most stubborn dirt,
supplied as an optional accessory.
WARNING
Aim the jet from a certain distance to avoid damage
caused by the high pressure. Do not aim the jet at peo-
ple, animals or electrical sockets.
Using detergent (Fig. 11)
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 package. Fill the detergent
tank with the diluted product. Ask your dealer for
the catalogue of the detergents that can be used
depending on the type of washing job to be done
and the type of surface to be treated. After using
a detergent, the detergent intake circuit must be
flushed out with clean water.
NOTE
Detergent must only be delivered in the low-pres-
sure setting.
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. Remove the extension tube from the handgrip
and attach the detergent spray kit (Fig. 12), op-
erate the water cleaner and spray the surface
to be washed, starting from the bottom and
working upwards. In the version with deter-
gent suction, open the detergent tap and move
the nozzle forwards.
3. Rinse the whole surface well from top to bot-
tom with hot or cold water at high pressure.
4. After use with detergent, rinse the high pres-
sure water circuit by operating the pump for
one minute with the detergent tap completely
closed.
Stopping the machine
1. Turn the burner off by rotating the "On-Off"
switch to the "I" position.
2. Let the pressure washer run with cold water
only for at least 30 seconds to cool down the
boiler.
3. Stop the pressure washer by turning the "On-
Off" switch to pos. "0".
4. Discharge the pressure from the high pressure
hose by pressing the trigger on the gun.
5. Disconnect the machine from the mains elec-
tricity supply.
6. Turn off the water supply tap.
WARNING
Dry use of the water cleaner causes serious damage
to pump gaskets. If the pressure washer is left, even
temporarily, turn it off by using the switch or by un-
plugging the plug from the socket.
PRECAUTIONS AGAINST FROST
The cleaner must not be exposed to frost. If the
machine is left in premises where it is exposed to
frost, when work is over or for storage, antifreeze
must be used to prevent serious damage to the
hydraulic circuit:
1. Turn off the water supply, disconnect the hose
and run the cleaner until it is completely empty.
2. Stop the machine with the "On-Off" switch in
the "O" position.
3. Prepare a container with the solution of anti-
freeze.
4. Immerse the tube in the container with the an-
ti-freeze solution (Fig. 13).
5. Start the machine with the "On-Off" switch in
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