Clarke JET 7500 Instruction Manual

WARNING: Read the instructions before using the machine.
OPERATION & MAINTENANCE
INSTRUCTIONS
DL0621 - ISS 4
Original instructions
POWER WASHER
MODEL NO: JET 7500
PART NO: 7333510

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INTRODUCTION
Thank you for purchasing this CLARKE Power Washer.
This pressure washer is designed for cleaning machines, vehicles, buildings,
boats, facades, terraces, gardening tools, etc. by means of a high-pressure
water jet (if necessary, with additional cleaning agents).
Only use accessories, replacement parts and cleaning agents recommended
by Clarke international.
Before attempting to use this product, please read this manual thoroughly.
GUARANTEE
This product is guaranteed against faulty manufacture for a period of 12
months from the date of purchase. Please keep your receipt which will be
required as proof of purchase.
This guarantee is invalid if the product is found to have been abused or
tampered with in any way, or not used for the purpose for which it was
intended.
Faulty goods should be returned to their place of purchase, no product can
be returned to us without prior permission.
This guarantee does not effect your statutory rights.
LIST OF CONTENTS
The following items should be supplied in the carton. If any parts are missing or
damaged, please see your Clarke dealer where you purchased the machine
1 x Pressure Washer (with integral
detergent tank)
1 x Inlet Filter (installed)
1 x Gun Assembly 1 x Pair of Storage Brackets
1 x Lance & Nozzle assembly (with High/
Low & Pencil Jet/Fan settings)
1 x Cranking Handle for Hose reel
1 x High Pressure (outlet) Hose (on reel) 1 x Manual
1 x Inlet Hose Adaptor (fitted) 1 x Nozzle Cleaning Pin

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GENERAL SAFETY RULES
1. NEVER direct the spray towards any person or animal.
2. NEVER direct the spray towards electrical wiring or equipment.
3. NEVER hold your finger over the high pressure nozzle.
4. NEVER allow children or untrained personnel to use this machine.
5. NEVER operate the machine with any of the covers removed.
6. NEVER attempt any repairs to this machine. Always refer to your Clarke dealer.
7. NEVER supply any liquid other than water to the water inlet.
8. NEVER use the detergent bottle to introduce flammable liquids/solvents, e.g. paint
thinners, petrol, oil as there is a risk of explosion.
9. NEVER direct the jet at electrical equipment or the machine itself.
10. NEVER use the pressure washer if the supply cable or important parts of the machine
are damaged.
11. ALWAYS release any residual pressure in the system by turning off the water supply
and operating the trigger before disconnecting any hose or accessory.
12. ALWAYS keep the machine itself dry and well clear of water spray.
13. ALWAYS wear protective clothing and safety glasses. Loose particles and other
debris may be propelled at high speed by the water jet.
14. ALWAYS grip the gun firmly and expect the spray gun to ‘kick’ when starting.
15. ALWAYS respect the requirements of the local water company. Pressure washers may
only be connected to the mains drinking water supply, if a system separator (known
as a backflow preventer) is installed in the supply hose.
16. ALWAYS disconnect from the water supply, and ensure the system is completely
drained when not in use. Store in a cool dry location.
17. ONLY use chemical cleaning agents (detergents), that are approved for pressure
washers. CLARKE Traffic Film Remover or CLARKE Wash and Wax (available from your
dealer), is recommended.
18. WARNING: High pressure water jets can be dangerous if subject to misuse. The jet
must not be directed at a person or anything that they are wearing.
19. WARNING: High pressure hoses, fittings and couplings are important for the safety of
the machine. Use only hoses, fittings and couplings recommended by the
manufacturer.
20. WARNING: Water that has flowed through a system separator (known as a backflow
preventer) is considered non-drinkable.
WARNING: WATER AT HIGH PRESSURE CAN BE DANGEROUS AND CAN
CAUSE DAMAGE IF THE OPERATOR IS CARELESS. NEVER ALLOW ANYONE
TO OPERATE THIS PRESSURE WASHER UNLESS THEY ARE FAMILIAR WITH THE
SAFETY PRECAUTIONS.

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ENVIRONMENTAL RECYCLING POLICY
Through purchase of this product, the customer is taking on the
obligation to deal with the WEEE in accordance with the WEEE
regulations in relation to the treatment, recycling & recovery and
environmentally sound disposal of the WEEE.
In effect, this means that this product must not be disposed of with general
household waste. It must be disposed of according to the laws governing
Waste Electrical and Electronic Equipment (WEEE) at a recognised disposal
facility.
SYMBOLS ON THE MACHINE
Read the manual
before use.
Failing to follow these
instructions could
result in injury or
damage to the
machine.
Conforms to UKCA &
CE Regulations.
Wear safety glasses
when using this
machine.
The high pressure jet
must not be directed
at persons, animals,
live electrical
equipment or at the
appliance itself.

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ELECTRICAL CONNECTIONS
Connect the mains lead to a standard, 230 Volt (50Hz) electrical supply
through an approved 13 amp BS 1363 plug, or a suitably fused isolator switch.
This product may be fitted with a non-rewireable plug. If it is necessary to
change the fuse in the plug, the fuse cover must be refitted. If the fuse cover
becomes lost or damaged, the plug must not be used until a suitable
replacement is obtained.
If the plug has to be changed because it is not suitable for your socket, or
because of damage, it must be removed and a replacement fitted, following
the wiring instructions shown below. The old plug must be discarded safely, as
insertion into a power socket could cause an electrical hazard.
If the colours of the wires in the power cable do not agree with the markings
on the plug.
• The BLUE wire must be
connected to the
terminal which is
marked N or coloured
black.
• The BROWN wire must
be connected to the
terminal which is
marked L or coloured
red.
• The YELLOW AND
GREEN wire must be
connected to the terminal which is marked E or or coloured green.
We strongly recommend that this machine is connected to the mains supply
through a Residual Current Device (RCD)
If you are not sure, consult a qualified electrician. DO NOT try to do any
repairs.
WARNING: READ THESE ELECTRICAL SAFETY INSTRUCTIONS
THOROUGHLY BEFORE CONNECTING THE PRODUCT TO THE MAINS
SUPPLY.
WARNING: THE WIRES IN THE POWER CABLE OF THIS PRODUCT ARE
COLOURED IN ACCORDANCE WITH THE FOLLOWING CODE:
BLUE = NEUTRAL BROWN = LIVE YELLOW AND GREEN = EARTH
Plug must be BS1363/A approved.
Always fit
Ensure that the outer sheath of
Neutral
(Blue)
Live
(Brown)
Earth
(Green and
a 13 Amp
the cable is firmly held by the clamp
fuse.
Yellow)

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OVERVIEW
1 Spray Gun Assembly 4 Reel Handle
2 Lance 5 Detergent Container
3 Hose 6 ON/OFF Switch

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ASSEMBLY
1. Push the handle into the hose reel
as shown.
• It will ‘click’ into place.
2. Slide the brackets into their
positions.
• They will ‘click’ into place.
3. Unwind the high pressure hose
from the hose reel and insert the
hose into the gun fully
4. Slide the hose clip towards the
hose to lock in place.
5. Insert the lance into the gun as
shown and twist to lock in place.

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CONNECTING THE MAINS WATER SUPPLY
NOTE: Always follow the regulations of your local water supplier.
1. Screw the inlet adaptor to the
water inlet as shown.
2. Connect the supply hose to the
inlet adaptor.
• A standard garden hose or a
reinforced hose with an inner
diameter of at least 10 mm
available from your CLARKE
dealer will be suitable.
3. Connect the supply hose to the
water supply.
• The water supply must provide a minimum of 6.6 litres per minute at a
maximum of 40°C.
4. Open the water tap fully.
OPERATION
1. Turn the water supply on, making sure that the tap is fully open.
2. Plug the mains power cable into
the electricity supply.
3. Set the switch to the ON position.
WARNING: FAILURE TO TURN ON THE WATER FULLY COULD CAUSE
DAMAGE TO THE POWER WASHER INTERNAL COMPONENTS.
WARNING: DO NOT USE THE POWER WASHER IF THE SUPPLY CABLE OR
IMPORTANT PARTS OF THE MACHINE ARE DAMAGED, E.G. SAFETY
DEVICES, HIGH PRESSURE HOSES, TRIGGER.
WARNING: WE RECOMMEND THAT THIS MACHINE IS CONNECTED TO THE
MAINS SUPPLY VIA A RESIDUAL CURRENT DEVICE (RCD).

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4. Release the trigger lock.
• The pressure washer is now
ready for use.
5. Make sure that you have a firm
footing and are also holding the
gun and spray lance firmly.
• Expect the spray gun to 'kick'
when starting.
6. Pull the trigger on the gun to start water flow.
• If you release the trigger the device will switch off again, the system
remains under high pressure.
• During longer breaks (more than 5 minutes), turn the pressure washer off.
See “Shutting Down” on page 11.
ADJUSTMENTS
TO CHANGE THE SPRAY PATTERN (NARROW JET / WIDE SPRAY)
1. Hold the shaft of the lance in one
hand.
2. Twist the nozzle with the other
hand.
3. To vary the spray between narrow
and wide, turn the nozzle counter-
clockwise through a half-a-turn
(180°).
ADJUSTING THE PRESSURE
Hold the rear of the nozzle and slide
the front of the nozzle forwards for
low pressure and backwards for high
pressure.
Other ways to adjust the pressure
include Increasing the distance you
are from the surface being cleaned
and adjusting the spray to a wider
angle (lowers the pressure).

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APPLYING CHEMICALS AND CLEANING AGENTS
To improve the cleaning performance, you can introduce chemical cleaning
agents (detergents) to the water jet using the detergent tank. This is
particularly useful when washing cars, greasy engine parts, or removing oil
spots on concrete etc.
To prepare for detergent application:
1. Remove the detergent filler cap
and fill the tank with detergent.
• Only use detergents
recommended for use with
pressure washers such as
CLARKE Traffic Film Remover
for car cleaning, patio cleaning
etc., or CLARKE Wash & Wax,
both available from your
CLARKE dealer.
2. Replace the cap.
3. Slide the nozzle forwards to low
pressure.
4. Use the pressure washer as
normal.
CAUTION: IF YOUR EYES COME INTO CONTACT WITH ANY CLEANING
FLUIDS, RINSE THEM IMMEDIATELY WITH PLENTY OF FRESH CLEAN WATER
AND SEEK MEDICAL ADVICE IF REQUIRED.
DESCRIPTION SIZE PART NUMBER
Car Wash & Wax Shampoo 5 Litre 3050815
Concentrated Traffic Film Remover 5 Litre 3050821
Concentrated Traffic Film Remover 25 Litre 3050820
Ready To Use Traffic Film Remover 5 Litre 3050818
Ready To Use Traffic Film Remover 25 Litre 3050819

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SHUTTING DOWN
When you have finished using the pressure washer, follow the procedure
shown below to switch off and disconnect the unit.
1. Set the switch to the OFF position.
2. Turn off the water supply at the
tap.
• To release the pressure in the
machine, pull and hold the
trigger until no more water
comes out of the nozzle.
3. Engage the trigger lock.
4. Disconnect from the power
supply.
5. Wind the hose onto the reel and
put the spray gun/lance into the
holder on the power washer.
STORAGE PROCEDURE
Disconnect from the water supply,
and ensure the system is completely
drained when not in use.
Store in a cool dry location.
Avoid storing the power washer at
freezing temperatures.
Residual water in the high pressure
pump of hose assembly may cause
permanent damage to the
components if it freezes.

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MAINTENANCE
CLEANING THE NOZZLE
If the nozzle becomes partially clogged with foreign material such as dirt or
limescale, excessive pressure may develop and the pump pressure will
pulsate. Clean the nozzle immediately as follows:
1. Turn off the power washer and
turn off the water supply.
2. Pull the trigger to relieve any
water pressure.
3. Disconnect the lance from the
spray gun.
4. Remove any obstructions by
directing the water supply into the
end of the lance for 30 seconds to
back flush loose particles.
5. If flushiing does not dislodge the obstruction, carefully use the nozzle
cleaning tool, to clear the nozzle.
6. Reconnect the lance to the gun and turn on the water supply.
CLEANING THE WATER INLET FILTER
This filter should be checked periodically and cleaned if necessary.
1. Remove the inlet filter from the
pressure washer as shown.
2. Clean the filter by flushing both
sides with water.
3. Replace the filter into the water
inlet.
• The tapered side faces in.
NOTE: Do not operate the pressure
washer without the filter
installed.
WARNING: REMOVE THE PLUG FROM THE SOCKET-OUTLET BEFORE
CLEANING OR MAINTENANCE AND WHEN REPLACING PARTS

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TROUBLESHOOTING
PROBLEM POSSIBLE CAUSE SOLUTION
No water
delivery.
Water filter blocked. See cleaning the water filter.
Clogged lance nozzle. Clean the nozzle.
Low or irregular
pressure.
Insufficient water supply. Check connections.
Pump taking in air. Check connections.
Detergent inlet sucking in
air.
Check connections and that
detergent supply is topped up.
Water filter dirty. Clean or replace.
Water temperature is too
high
Make sure the water supply is below 40
degrees Celcius.
Motor suddenly
stops.
Thermal protection has
activated due to
overheating.
Switch off the machine and wait until
the unit has cooled down sufficiently.
Pressure
fluctuations or
pressure drop.
Shortage of water. Turn water tap on fully.
No water due to clogged
inlet filter.
Clean water inlet filter.
Motor does not
start when
switched on.
Plug is not connected
properly.
Check plug and lead and have them
replaced by a qualified electrician if
necessary.
Mains fuse tripped/blown. Renew fuse or reset.
Motor hums
when trigger
operated and
does not start.
Mains voltage too low. Have electrical connection checked.
Motor cuts out. Motor protection switch
has been activated.
Switch off and allow to cool for at least
15 minutes.
Nozzle partly clogged. Clean using the supplied nozzle
cleaning needle.
Additives are not
being supplied.
Detergent container is
empty.
Fill detergent container.
High Pressure is selected. Set the lance to LOW pressure.

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PRODUCT SPECIFICATIONS
Model Number JET 7500
Part Number 7333510
Voltage 230V/50Hz
Motor Input Power 1600 W
Duty Cycle S1 Continuous
Working pressure 90 bar
Maximum pump pressure 140 bar
Maximum output flow rate 6.67 l/min
Maximum input temperature 400C
Detergent tank capacity 1.4 l
Sound Pressure Level (LPA)91
Sound Power level (LWA)93
Guaranteed sound power level (LWA)96
Sound Uncertainty Factor K 3
Vibration 3.9 m/s2
Uncertainty Factor K 1.5
Dimensions (L x W x H) 287 x 338 x 745 mm
Weight 14.95 kg

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DECLARATION OF CONFORMITY - UKCA

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DECLARATION OF CONFORMITY - CE

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ASSOCIATED PRODUCTS
Traffic Film Remover, 5 Litres Concentrate
Part Number: 3050821
Traffic Film Remover, 25 Litres Concentrate
Part Number: 3050820
Traffic Film Remover, 5 Litres Ready to Use
Part Number: 3050818
Traffic Film Remover, 25 Litres Ready to Use
Part Number: 3050819
Car Wash & Wax Shampoo, 5 Litres
Part Number: 3050815