Defort DPW-1800-VAC User Manual page 7

¿ rst check all connections to ensure they are free from any
blockage.
Screw the outlet pressure hose (6) onto the machine
and ensure a good hand tight ¿ t.
Connect the spray lance (4) to the trigger (5) by means
of the push in and twist bayonet ¿ tting (¿ g 2.7).
Ensure that this connection has been performed posi-
tively and the bayonet has located correctly. Ensure the
hose has no kinks in it.
4. USE
WATER SUPPLY
Ensure that you have a suitable water supply to feed
the pressure washer. Check that all connections are
tight and there are no leaks in the hose.
The supply tap should be fully open (do not turn on the
pressure washer yet).
Now depress the trigger (unlock trigger lock ¿ rst) to let
water pass through the unit and expel any air.
WARNING! This unit is to be used with a coldwa-
ter source only!
ELECTRICAL CABLES
Ensure that all cables are damage free before connecting
to the power supply.
The electric supply connection shall be made by a quali¿ ed
electrician. It is recommended that the electric supply to
this appliance should include either a residual current
device that will interrupt the supply if the leakage current
to earth exceeds 30 mA for 30 ms or a device which will
prove the earth circuit.
CAUTION! The machine may cause electrical
disturbances when starting. If the motor stops
and fails to restart, wait 10-30 minutes before re-
starting. THERMAL CUTOUT TRIPPED
CAUTION! The cleaner must only be used with
clean water; use of un¿ ltered water or corrosive
chemicals will damage the cleaner.
Turn the motor switch (3) to the "OFF" position.
Check that the electrical supply voltage and frequency
(Volts/Hz) correspond to those speci¿ ed on the cleaner
data plate.
Plug in the pressure washer and turn the unit on with the
main switch (3).
Switch (3) has 3 positions (see Fig. 3). When the switch is
in OFF position, both the washer and the socket for vacu-
um cleaner (10) are disconnected from the power supply.
When the switch is in position 2, the socket is connected to
power supply, and the washer is disconnected. When the
switch is in position 1, the washer is connected to power
supply, and the socket is disconnected.
ADJUSTING THE NOZZLE
(¿ g. 4)
Water may be sprayed out of the nozzle either linearly
or in a fan shape. Turn on the pressure ¿ rst, and then
adjust the nozzle.
The water inlet ¿ lter must be inspected regularly, so as
to avoid blockage and restriction of the water supply to
the pump. (¿ g 4)
USING THE DETERGENT BOTTLES
Press the detergent bottle lock button (8, Fig. 1) and pull
the detergent bottle out. Fill the detergent bottle with liquid
detergent. Insert it back. Fill another bottle if needed.
To enable supply of detergent from the bottle, remove noz-
zle of the spray lance according to the arrow on the Figure
5.1, and set detergent supply switch (9, Fig. 1) into posi-
tion 1 or 2 (see Fig. 5.2). When the switch is in position 1
the detergent is sucked out from the left bottle. When the
switch is in position 2 the detergent is sucked out from the
right bottle. When the switch is in OFF position, both bot-
tles are switched off, and the detergent is not sucked out.
RECOMMENDED CLEANING PROCEDURE
Dissolve dirt by applying detergent with the fan jet to the
dry surface. On vertical surfaces, work from the bottom up-
wards. Leave the detergent to act for 1 to 2 minutes, but do
not allow to dry out. Apply the high pressure jet, keeping
the nozzle at least 30 cm (10 in.) from the surface, working
from the bottom upwards. Avoid allowing the rinsing water
to run on to unwashed surfaces.
SHUTTING DOWN THE PRESSURE WASHER
CAUTION! Never disconnect the high-pressure
hose from the machine while the system is still
pressurized.
Follow the correct procedure:
1. Turn off the pressure washer by using the switch on the
machine.
2. Unplug the unit from the power source.
3. Turn off the water supply at the tap.
4. Press the trigger of the gun to depressurize the system.
5. Disconnect the supply hose to the machine
6. Wipe all surfaces of the unit with a damp clean cloth.
7. Engage the safety lock.
TROUBLESHOOTING
1. When switched on, the machine will not start work-
ing.
Plug is not well connected or electric socket is faulty.
- Check plug, socket and fuse.
The mains voltage is lower than the minimum require-
ment for start up.
Check that the mains voltage is adequate.
The pump is stuck.
- Refer to after storage instructions. Switch off the unit
and let the motor cool.
Thermal safety has tripped.
- Leave the lance open with water comingthrough.
2. Fluctuating pressure
Pump sucking air
- Check that hoses and connections are airtight
Valves dirty, worn out or stuck. Pump seals worn.
- Clean and replace or refer to dealer.
3. Water leaking from the pump
Seals worn out
- Check and replace, or refer to dealer
4. The motor stops suddenly
Thermal safety switch has tripped due to overheating.
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