Clarke KING 120 Installation and operation manual

OPERATING & MAINTENANCE
INSTRUCTIONS
5/97
KING 120
HOT WASHER
PART No. 7320500

Thank you for purchasing this CLARKE KING 120 Hot Washer.
This machine is a lightweight, portable, high pressure power washer, designed for
DIY use in and around the home.
It comprises an electric motor, a pump, a high pressure hose with a trigger and
lance, and an adaptor for injecting foam or cleaning agents into the water jet.
Additionally, a burner is incorporated to provide hot water when required for hot
washing.
Before attempting to use your Hot Washer, please read this instruction manual
thoroughly and follow all instructions carefully. By doing so you will ensure the
safety of yourself and that of others around you, and you can look forward to it
giving you long and satisfactory service.
GUARANTEE
This CLARKE product is guaranteed against faulty manufacture for a period of 12
months from the date of purchase. Please keep your receipt 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.
SAFETY PRECAUTIONS
WARNING
Water at high pressure can be dangerous and may cause severe damage
to persons or property if subject to misuse.
NEVER allow anyone to operate this equipment unless they are
thoroughly reliable, and completely familiar with the safety precautions.
1. Never direct the spray jet at any person or animal.
2. Never hold a finger over the high pressure nozzle.
3. Never direct the spray jet at the machine itself
or any other electrical equipment.
4. After use, and before disconnecting hoses,
release the pressure in the high pressure hose by
operating the trigger. Do not attempt to disconnect any
hose or coupling with pressure still in the hose.
5. Never operate the machine with any of the covers removed.
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6. Do not, attempt any electrical or mechanical repair. If you have a problem
with your machine contact your local dealer or Clarke Customer Services
Dept., tel: [phone]
7. Never supply any liquid other than water to the water inlet.
8. Use only chemical cleaning agents (detergents) approved for power washing
when using the chemical injection facility.
9. Never use the chemical injection facility to introduce solvents e.g.. paint
thinners, petrol, oil, etc.
10. Do not operate the machine whilst standing on ladders: use a platform tower
or scaffolding.
11. Children should not be allowed to use the machine.
12. We recommend the use of safety goggles when using machine in any
application where loose particles of stone or grit etc. may be blown around
by the high pressure spray.
13. When not in use, disconnect from the water and electrical supply’s, and ensure
the system is completely drained. Store in a dry, frost free environment.
14. Disconnect from the mains supply before carrying out any maintenance or
servicing.
15. Never pull the washer by the power cable, or yank the cable it to
disconnect from the socket. Keep the cable away from heat, oil or sharp
edges.
16. Observe all precautions regarding the use
of flammable liquids when filling the
fuel tank.
17. Take care when handling the lance
when hot washing. The metal
components can become very hot.
It is strongly advised that a good pair
of industrial gloves be worn.
18. DO NOT operate the machine
indoors or in enclosed areas
without adequate ventilation, or in
areas where flammable vapours
(Petrol, solvents etc.), may be
present.
IMPORTANT: If the machine must be used in an enclosed area, ensure the
burner exhaust is vented to the outside atmosphere. All venting must be in
accordance with applicable laws and local ordinances for such installations.

ELECTRICAL CONNECTIONS
WARNING: THIS MACHINE MUST BE EARTHED.
This product is provided with a standard 13 amp, 230 volt (50Hz), BS 1363 plug,
for connection to a standard, domestic electrical supply.
Should the plug need changing at any time, ensure that a plug of identical
specification is used. IMPORTANT: The wires in the mains lead should be wired
up in accordance with the following colour code:
Green & Yellow —- Earth
Blue —- Neutral
Brown —- Live
As the colours of the wires in the mains lead may not correspond with the coloured
markings identifying the terminals in your plug, proceed as follows:
Connect GREEN & YELLOW coloured cord to plug terminal marked with
a letter “E” or Earth symbol “ “.
Connect BROWN coloured cord to plug terminal marked letter “L”
Connect BLUE coloured cord to plug terminal marked letter “N”
We recommend that this machine is connected to the mains supply through a
Residual Current Device (RCD).
FUSE RATING
The fuse in the plug for this appliance must be rated at 13 amps
IMPORTANT:
If this appliance is fitted with a plug which is moulded onto the electric cable (i.e.
non-rewireable) :
1. The plug must be thrown away if it is cut from the electric cable. There is a
danger of electric shock if it is subsequently inserted into a socket outlet.
2. Never use the plug without the fuse cover fitted.
3. Should you wish to replace a detachable fuse carrier, ensure that the correct
replacement is used (as indicated by marking or colour code).
4. Replacement fuse covers can be obtained from your local dealer or most
electrical stockists.
5. The fuse in the plug must be replaced with one of the same rating (13 amps)
and this replacement must be ASTA approved to BS1362.
EXTENSION CABLES
If an extension cable is used, always ensure it is fully unwound. When used
outdoors, ensure the extension cable is specifically designed for outdoor use.
The maximum extension length is 25 metres. Ensure that the wire sizes in the
cable are at least 2.5mm2in cross section. As a general rule, the extension cable
must be thicker than the cable supplied with the washer.
IF IN DOUBT, CONSULT A QUALIFIED ELECTRICIAN.
Do not attempt any electrical repairs yourself.
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ASSEMBLY AND PREPARATION FOR USE
The machine is fully assembled except for the handle which is hinged and lies
flat for transit purposes. Raise the handle and secure in position with the screw
provided on the rear of the machine.
The lance is assembled by screwing the two sections together. Screw one end of
the high pressure hose to the lance, and the other to the high pressure outlet ,
shown in fig. 1
The low pressure water inlet, which carries a 3/4” BSP thread, is shown in fig. 1.
A 3/4” BSP adapter with a 1/2” hose connector is provided, so that a suitable
hose (not supplied), may be attached, with a worm drive clip (not supplied), and
connected to your water supply. We recommend that you connect a filter to the
inlet hose, to prevent the possibility of foreign bodies entering the pump.
IMPORTANT:
Before use, ensure the water supply is of adequate volume for your needs, e.g.,
if you use a water butt - ensure it contains sufficient water.
Unscrew the YELLOW fuel filler cap and fill the tank with diesel fuel or paraffin,
but DO NOT mix them.
IMPORTANT: DO NOT USE PETROL
If you intend to use the chemical injection facility, fill the detergent tank with the
requisite detergent. Use ONLY those detergents specifically designed for use
with Power Washers. We recommend the use of CLARKE Traffic Film Remover,
which is a powerful low foaming agent for car cleaning, patio cleaning etc., or
CLARKE Wash & Wax, both available from your CLARKE dealer.
Fig. 1.
Fuel Filler Cap Detergent Filler Cap
Water Pressure Gauge
High Pressure Outlet
Low Pressure Inlet
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Burner Switch Pump Switch

OPERATION
A. COLD WASH
Make certain the PUMP ON/OFF switch is set in the OFF position.
The ON/OFF switch is the front of the two switches mounted on the top panel as
shown in fig. 1, and is identified by the symbol
Connect the plug to the mains supply, preferably via a Residual Current Device.
Turn the water tap fully on.
When starting, it is IMPORTANT that you adopt the following procedure:
In order to ease the starting process, and to prevent the possibility of blown
fuses, pull the trigger on the lance - it may be necessary to release the safety
latch in order to do so.
Hold the trigger in that position whilst switching the pump ON, and allow the
pump to develop full pressure.
You may release the trigger once full pressure is developed.
WARNING
Ensure the operator is aware that when the trigger is pulled, water at
high pressure can cause the lance to kick it should therefore be held
firmly. In addition, care must be taken to ensure that the nozzle is
NOT aimed at an area where the water jet will cause damage. i.e. away
from people, animals, windows - greenhouses etc., and be aware
that splash back could also cause damage if the jet is trained on a
nearby wall etc.
For the reasons given above, it is strongly recommended that you ALWAYS set
the jet to its LOW PRESSURE setting before switching ON.
NOTE: Water pressure is regulated by turning the adjuster at the nozzle end of
the lance, (as shown by the arrows on the ferrule - see fig. 2), ANTICLOCKWISE
to INCREASE pressure and CLOCKWISE to DECREASE, (looking from the
handle end).
If you wish to use the chemical injection facility, note that it will ONLY operate at
LOW pressure.
IMPORTANT: Ensure you read and comply with the manufacturers instructions
regarding the use of chemical detergents.
Turn to adjust pressure
Turn for fan spray or jet
fig. 2
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If you desire a fan spray, turn the nozzle fully anticlockwise - for a high pressure
jet, turn it fully clockwise - see fig.2.
In the event that you switch the machine OFF, but intend to continue with its use
after a few minutes or so, DO NOT depress the trigger, but set the safety latch to
prevent it from being accidentally pulled. This will ease and assist the subsequent
restarting of the motor as pressures will remain equalised on either side of the
pump, thereby reducing the load on the motor when restarting.
NEVER attempt to run the machine with water supply disconnected or turned off.
B. HOT WASH
Follow the same procedure as for the cold wash, but switch the burner ON once
the pump has been switched ON, by pressing the rear rocker switch on top of the
unit, marked ON/OFF, and identified by the symbol.
Take care when using the HOT WASH facility.
DO NOT forget that certain components get extremely hot during operation, and
will remain so for a period after switching OFF. DO NOT allow anyone, particularly
children, near the unit during hot wash operations.
All notes and observations as in A above apply.
C. SHUTTING DOWN THE MACHINE
If the burner has been used, switch it OFF by pressing the rocker switch on top of
the unit.
If the chemical injection facility has been used, turn the pressure adjuster on the
end of the lance to HIGH pressure, and allow the pump to run for a minute or so
until the water being ejected is foam free, then switch OFF the pump.
Disconnect from the mains electrical supply, and turn OFF the water supply -
disconnect where appropriate.
Operate the lance trigger once more to ensure there is no pressure in the high
pressure hose. NEVER disconnect High pressure hose without operating trigger.
MAINTENANCE
WARNING: Ensure the plug is removed from the socket before carrying
out any adjustment, servicing or maintenance.
AFTER EACH USE
When using chemical detergents, always ensure the system is thoroughly flushed
out after use.
Ensure the hoses and power cable are coiled and properly stowed. DO NOT
allow them to be left casually, in a heap. This invites damage and will cause
rapid deterioration. Take care NOT to drape the hoses/cables over the hot exhaust.
STORAGE
Store the Hot Washer in an horizontal position, preferably under cover, protected
from the elements. 7

antifreeze
If there is a danger of freezing, the pump should
be filled with antifreeze by inserting the inlet
and outlet hoses into a bucket of antifreeze
as shown in the diagram, start the machine
and allow the antifreeze to circulate. After a
short time stop the machine using the
procedure outlined on page 7, and store the
machine with the antifreeze still within the pump
body.
SERVICING
1. Oil burner
It is recommended that the oil burner be serviced yearly, or as needed
depending upon the machines’ usage. Please contact the CLARKE
International Service Dept. on 0181 556 4443.
2. Limescale
Periodically, check the heating coil for limescale buildup. This will be
dependant upon the relative hardness of your water supply.
When de-scaling is required, use a large water tank as your water supply
and add 2kg of de-scaler.
Remove the lance extension from the handle assembly, place the handle
assembly in the water tank, with the trigger held in the depressed position by
some means, and run the pump and heater for approx. 40 mins
When completed, switch off the heater, and flush out the system with clean
water by connecting to a water supply or replacing the contaminated water
in the water tank.
3. Soot Build up
Poor grades of fuel oil or inadequate combustion will cause heavy build up of
soot on the heating coil. This deposit will insulate the coil and reduce
efficiency. It will restrict air flow through the coil, further aggravating the soot
build up. Contact your CLARKE dealer or CLARKE International Service
Dept. when de-sooting is required.
ACCESSORIES
A range of accessories designed for use with your washer are available from
your Clarke dealer, as follows: Part No.
Rotary Brush 7310160
Water Sandblaster 7310161
Drain Cleaner 7310163
Heavy Duty Extension Hose (10M) 7310162
Traffic Film Remover 5 litre 3050821
Traffic Film Remover 25 litre 3050820
Wash ‘n Wax 5 litre 3050815
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Pressure drop
Pressure fluctuations or
pressure drop
Oil leakage
Motor does not start when
switched on
Motor hums when
switched on and does not
start
Motor cuts out
Additives are not being
supplied
Air in system
Worn high pressure nozzle.
Pressure regulator incorrectly
set
No water
Water supply hose too long/too
small diameter
No water due to clogged filter
Worn seals
Plug is not connected properly.
Mains fuse blown/switched off
Mains voltage too low
Incorrect dia cable resulting in
voltage drop
Trigger Switch not operated
Motor protection switch has
been activated due to
overheating or motor overload
Nozzle clogged
Injector clogged
Additive container empty
Lance not correctly set
Bleed system by quickly switching
off pistol grip several times. If
necessary operate the machine
briefly without the high pressure
hose connected.
Renew nozzle
Set to required working pressure by
turning hand grip
Turn on water tap
Use minimum 1/2" dia. water supply
hose
Clean water filter (never operate
without filter)
Contact your CLARKE Distributor
Check plug and lead and have them
replaced by a qualified electrician if
necessary
Rectify
Have electrical connection checked
Use correct diameter of cable
Operate trigger
Ensure supply voltage and unit
voltage are equal. Switch off and
allow to cool for at least three
minutes before trying again.
Clean using the supplied nozzle
cleaning needle
Clean
Fill additive container
Set the lance to low pressure by
screwing the pressure adjuster
clockwise
FAULT CAUSE REMEDY
TROUBLE SHOOTING
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PARTS LIST
Item Description Qty Part No.
1 Cover 1 FP85030000
2 Gun. 1 FP65001200
3 Lance Extension with nozzle 1 FP67503400
4 Hose Standard 1 FP68502200
5 Wheel 2 FP17804400
6 Retaining Clip 2 FP17802600
7 Trim 2 FP17805000
8 Detergent Tank 1 FP85030600
9 Fuel Tank 1 FP85030500
10 Fuel Filler Cap 1 FP18106200
11 Fuel Hose - Clear Plastic 1 FP15609700
12 Detergent Filler Cap 1 FP18106200
13 Screw M6x15 4 FP10108100
14 Castor 1 FP17804000
15 Screw M6x15 4 FP10108100
16 Handle Assy 1 FP85030100
17 Securing Screw D25 1 FP14802300
18 Washer M6x24 1 FP12900900
For Spare Parts and Servicing, please contact your nearest dealer, or
CLARKE International, on one of the following numbers.
PARTS - 0181 558 6696 SERVICE - 0181 556 4443
PARTS & SERVICE FAX - 0181 558 3622
Please note that the details and specifications contained herein, are correct at the time of going to print. However, CLARKE International
reserve the right to change specifications at any time without prior notice.
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