Machine Mart KING 125 Instruction Manual

OPERATION & MAINTENANCE
INSTRUCTIONS
LS1009
HOT WASHER
MODEL NO: KING 125
PART NO: 7320170

2
INTRODUCTION
Thank you for purchasing this Hot Washer.
This machine is a portable, high pressure power washer, designed for DIY and
light commercial use only.
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 this product, please read this manual thoroughly and
follow the instructions carefully. In doing so you will ensure the safety of yourself
and that of others around you, and you can look forward to your purchase
giving you long and satisfactory service.
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.

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TABLE OF CONTENTS
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
GUARANTEE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
TABLE OF CONTENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
GENERAL SAFETY RULES . . . . . . . . . . . . . . . . . . . . . . . . . 4
SAFETY SYMBOLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
ELECTRICAL CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . 6
OVERVIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
UNPACKING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
USING YOUR POWER WASHER . . . . . . . . . . . . . . . . . . . . 10
STORAGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
PARTS AND SERVICING . . . . . . . . . . . . . . . . . . . . . . . . . . 15
TROUBLESHOOTING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
WATER SYSTEM DIAGRAM. . . . . . . . . . . . . . . . . . . . . . . . 19
KITS AND ACCESSORIES . . . . . . . . . . . . . . . . . . . . . . . . . 20
PARTS LIST. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
DECLARATION OF CONFORMITY . . . . . . . . . . . . . . . . . . 22

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GENERAL SAFETY RULES
1. It is important to read all parts of this operator's manual carefully before
using the power washer.
2. NEVER direct the spray towards any person or animal.
3. NEVER direct the spray towards electrical wiring or equipment.
4. NEVER hold your finger over the high pressure nozzle.
5. ALWAYS remember that the exhaust, exhaust gases and the metal lance
can get very hot during use.
6. NEVER allow children to use this machine.
7. NEVER operate the machine with any of the covers removed.
8. NEVER attempt any repairs to this machine. Always refer to a qualified
service agent.
9. NEVER supply any liquid other than water to the water inlet.
10. NEVER use the detergent bottle to spray solvents, e.g. paint thinners, petrol,
oil etc.
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. NEVER disconnect the plug by pulling on the power supply cable, and
never move the power washer by pulling on the high pressure hose.
13. ALWAYS keep the machine itself dry and well clear of water spray.
14. ALWAYS wear protective clothing and safety glasses. Loose particles and
other debris may be propelled at high speed by the water jet.
15. ALWAYS grip the gun firmly before pressing the trigger, expect the gun to
‘kick’ when starting.
16. ALWAYS respect the requirements of the local water company. Power
washers may only be connected to the mains drinking water supply, if a
backflow preventer valve is installed in the supply hose.
17. When not in use, ALWAYS disconnect from the water supply, and ensure the
system is completely drained. Store in a cool dry location.
WARNING: Water at high pressure can be dangerous and can cause
damage to persons or property if the operator is careless. Never allow
anyone to operate this equipment unless they are thoroughly reliable,
and familiar with the safety precautions.

5
SAFETY SYMBOLS
WARNING: Risk of electrocution.
NEVER direct spray at persons or
animals.
NEVER direct spray toward any
electrical device or electrical
outlet.
Guaranteed sound power level .
WARNING: Hot surface / Exhaust gasses.

6
ELECTRICAL CONNECTIONS
Before switching the product on, make sure that the voltage of your electricity supply is
the same as that indicated on the rating plate. This product is designed to operate on
230VAC 50Hz. Connecting it to any other power supply may cause damage.
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 due to
damage, it should be cut off and a replacement fitted, following the wiring instructions
shown below. The old plug must be disposed of safely, as insertion into a mains socket
could cause an electrical hazard.
If the colours of the wires in the power cable of this product do not correspond with the
markings on the terminals of your plug, proceed as follows.
• The wire which is coloured Blue must be connected to the terminal which is
marked Nor coloured Black.
• The wire which is coloured Brown must be connected to the terminal which is
marked Lor coloured Red.
• The wire which is coloured Yellow and Green 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 via a
Residual Current Device (RCD)
If in any doubt, consult a qualified electrician. DO NOT attempt any repairs yourself.
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 a 13 Amp fuse.
Ensure that the outer sheath of the cable is firmly held by the clamp
Neutral
(Blue) Live
(Brown)
Earth
(Green and Yellow)

7
OVERVIEW
Fig. 1
NO DESCRIPTION NO DESCRIPTION
1 Transformer 8 Electrical system box
2 Boiler 9 Hot / Cold selector switch
3 Fuel delivery pump 10 Cooling fan
4 Electric motor 11 Diesel tank cap
5 Exhaust vent 12 Diesel tank
6 Pressure switch 13 Water inlet
7 High pressure water pump 14 Pressurised water outlet

8
UNPACKING
Unpack your power washer and check to ensure the following items are
present.
Contact your dealer immediately if any parts are missing or damaged.
•Hose
•Gun/lance
• Detergent bottle
ASSEMBLY
On first use or after a long period out of use, connect only the water intake
hose for a few minutes, in order to flush any dirt out of the high pressure hose
outlet.
ELECTRICAL CONNECTION
Check that the mains voltage is the same as the voltage on the data plate.
Check that the mains system is earthed and is fitted with a RCD Circuit
breaker.
FILLING UP WITH FUEL
1. Remove the fuel cap.
2. Fill the tank with Diesel as shown in
Fig 2.
• Refuel carefully to avoid spilling
fuel.
•Do not overfill.
3. Replace the fuel cap and tighten
securely.
WARNING: ALWAYS REFUEL IN A WELL VENTILATED AREA AWAY FROM
ANY HEAT SOURCES.
WARNING: LET THE POWER WASHER COOL DOWN BEFORE REFUELLING.
WARNING: DO NOT LEAVE FUEL WITHIN THE REACH OF CHILDREN.
Fig. 2

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WATER SUPPLY CONNECTION
1. Connect the water supply hose
(1) to the inlet connection (2). See
Fig. 3.
NOTE: A reinforced hose with
inside diameter of at least
10 mm should always be
used.
NOTE: The water supply flow rate
must be at least 6.1 l/min.
and the inlet temperature must not exceed 40 °C.
THE HIGH PRESSURE HOSE
1.
Fig. 4
Connect one end of the high
pressure hose (3) to the gun (4).
See Fig. 4.
2. Connect the other end of the
high pressure hose to the outlet
(5), tightening firmly.
FITTING THE LANCE
1.
Fig. 5
Take hold of the gun (1) in one
hand and fit the lance (2) on to
the gun as shown in Fig. 5.
2. Tighten the collar (3) to secure.
See Fig. 5.
Fig. 3

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USING YOUR POWER WASHER
• Stand on a stable surface and grip gun/spray wand firmly with both
hands.
• Do not allow vehicles to drive over the hoses.
• Never obstruct the exhaust in any way.
COLD WATER OPERATION
1. Turn on the water supply tap to supply water to the power washer.
2.
Fig. 6
Set the Hot / Cold selector switch
(I / 0/II) to (I) to start the power
washer operating with cold water.
See Fig. 6.
• Pump will start
3.
Fig. 7
Take hold of the lance and press
the trigger (A) as shown in Fig. 7.
• Expect the gun to kick when
the trigger is pulled.
• Check that the water jet is
strong and continuous;
otherwise, remove the nozzle,
clean it and put it back in
place.
4. Release trigger to stop water flow.
NOTE: The power washer will then automatically go into bypass mode.
WARNING: FAILURE TO TURN ON THE WATER WILL CAUSE DAMAGE TO THE
HOT WASHER
WARNING: DO NOT ALLOW THE POWER WASHER TO OPERATE IN BYPASS
MODE FOR MORE THAN 5 MINUTES. OVERHEATING CAN CAUSE
DAMAGE TO PUMP.

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HOT WATER OPERATION
1. Turn on the water supply tap to supply water to the power washer.
2.
Fig. 8
Set the Hot / Cold selector switch
(I / 0/II) to (II), to start the power
washer operating with hot water.
See Fig. 8.
• Pump will start
3.
Fig. 9
Take hold of the lance and pull
the trigger (A) as shown in Fig. 9
• Expect the gun to kick when
the trigger is pulled.
• Check that the water jet is
strong and continuous;
otherwise, remove the nozzle,
clean it and put it back in
place.
4. Wait a few moments to allow the
water to heat up.
5. Release trigger to stop water flow.
NOTE: The power washer will then automatically go into bypass mode.
WARNING: FAILURE TO TURN ON THE WATER COULD CAUSE DAMAGE TO
THE PUMP.
WARNING: DO NOT ALLOW THE POWER WASHER TO OPERATE IN BYPASS
MODE FOR MORE THAN 5 MINUTES. OVERHEATING CAN CAUSE
DAMAGE TO PUMP.

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STOPPING THE POWER WASHER
1.
Fig. 10
Release the gun trigger (A) Fig. 10
2. Set the Hot / Cold selector switch
(I / 0/II) to (0), to stop the power
washer
3. When the power washer has
stopped, pull the trigger (A) a few
times to discharge any residual
pressure left in the hose.
4.
Fig. 11
Engage the safety catch (B) of
the gun trigger. See Fig. 11.
APPLYING CHEMICALS AND CLEANING AGENTS
1.
Fig. 12
Take hold of the gun in one hand.
2. Fill the detergent bottle with
suitable power washer detergent
available from your dealer.
3. Fit the detergent bottle onto the
gun as shown in Fig. 12
4. Tighten the collar to secure.
5. After use, rinse the detergent
bottle thouroughly.
SHUTTING DOWN
1. Place the three-position switch to (0) to turn the power washer off.
NOTE: NEVER turn the water off with the pump running.
2. Turn water supply off.
3. Pull trigger on spray gun to relieve any water pressure.
4. See page 13. in this manual for proper storage procedures.

13
STORAGE
1. Drain all water from the hose and gun by holding the gun/lance vertically
with the nozzle pointing down and pulling the trigger.
2. Engage the gun safety catch and coil up the electricity supply cable and
the high pressure hose to prevent damage.
3. Store the power washer in a place where it is protected from frost and the
risk of unauthorized use.
MAINTENANCE
CLEANING THE INSIDE OF THE HEATING COIL (FIG.13)
The coil must be cleaned periodically, at intervals depending on the hardness
of the water supply being used.
1. Dilute 1 kg of de-scaler, with 10-15 litres of cold water into a container.
2. Connect the inlet hose (A) to the tap (B) of the container. See fig. 13.
3. Place the end of the high pressure hose (C) in the container.
4. Operate the power washer for about 20 minutes on cold setting.
5. After cleaning, disconnect the hose (A) from the tap (B) and connect it to
the mains water tap (E). See fig. 13.
6. Remove the end of the high pressure hose (C) from the container and
connect it to the gun (P). See fig. 13.
7. Remove the nozzle (U) from the lance (P), turn on the mains water tap (E).
Operate the power washer with the lance with no nozzle fitted until the
water flowing from the hose runs clear.
8. Replace the nozzle (U) on the lance and dispose of the water in the
container.
Fig. 13

14
EVERY 2 WEEKS OR 50 WORKING HOURS
Check the filter in the water inlet connection (A) fig. 14.
CLEANING THE WATER INLET FILTER
This screen filter should be checked periodically and cleaned if necessary.
1.
Fig. 14
Remove filter from the water inlet
as shown.
2. Clean filter by flushing from both
sides with water.
3. Replace the filter into the water
inlet.
Do not operate power washer
without filter installed.
EVERY 4 WEEKS OR 100 WORKING HOURS:
1.
Fig. 15
Unscrew the two screws indicated
and lft off the outer cover.
2. Pull off the 2 spark plug leads.
3. U
Fig. 16
nscrew the three blind nuts
shown and carefully lift off the
cover plate taking care not to
damage the fuel pipe.
4. Check the gap between the
electrodes.
• The gap should be 3 mm.
• Wipe the electrodes clean.
5. Reassembly is the reverse of the
removal procedure .
WARNING: BEFORE DOING ANY WORK ON THE POWER WASHER,
DISCHARGE THE PRESSURE FROM THE HOSE AND DISCONNECT THE
ELECTRICITY SUPPLY PLUG, REMOVE THE HOSE FROM THE TAP TO
DISCONNECT THE WATER SUPPLY.

15
EVERY 3 MONTHS OR 300 WORKING HOURS:
CHANGE THE FUEL FILTER AND FUEL PUMP FILTER.
(this operation must be carried out by service engineers).
PARTS AND SERVICING
For spare parts & servicing, please contact your nearest dealer, or
Machine Mart, on one of the following numbers.
PARTS TEL:...............................
SERVICE TEL:...........................
CUSTOMER CARE LINE: .........
OR: .........................................
0115 956 1805
0115 956 1809
0115 956 1810
0115 955 9999

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TROUBLESHOOTING
If the following does not solve your problem, please contact the service
department. See page 15.
PROBLEM CAUSE SOLUTION
The pump turns
but does not
reach the
required pressure.
The pump is sucking in air Check that all pipes and hoses are
secure
Worn out valves Replace the valves
Worn out nozzle Replace the water nozzle
Worn out gaskets Replace the gaskets
Blocked/dirty water filter Clean the water filter
Pressure
fluctuates
Worn out suction and/or
delivery valves
Replace the valves
Foreign body caught in the
valve
Check the valve and clean if needed
Air being sucked in Check that all pipes and hoses are
secure
Worn out gaskets Replace the gaskets
Pressure drops Worn out suction and/or
delivery valves
Replace the valves
Foreign body caught in the
valve
Check the valve and clean if needed
Air being sucked in Check that all pipes and hoses are
secure
Worn out gaskets Replace the gaskets
Worn out water nozzle Replace the nozzle
Insufficient water
temperature
Scale build up on the
heating coil
Clean (See page 13)
Soot build up may be
blocking the boiler
Clean
Worn out nozzle Replace the water nozzle
Water leaks from
the piston head
Worn out piston Replace the piston
Casing side seal rings worn
out
Replace the seal rings
Worn out or dirty valves Replace the valves

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The boiler is
producing
excessive fumes
Presence of water in the fuel
tank
Empty the fuel tank and refill with
clean fuel.
The starter electrodes are
not positioned correctly
Check the distance of the electrodes
The fuel nozzle is dirty Clean the fuel nozzle
The fuel nozzle has worn out Replace the fuel nozzle
The boiler coil is blocked Clean the boiler coil
The fuel pump is dirty Clean the fuel pump
The fuel valve is not working Replace the fuel valve
The boiler
switches itself off
The fuel tank is empty Refill the fuel tank
The filter on the fuel suction
tube is dirty
Clean the fuel filter
Presence of water in the fuel
tank
Empty the fuel tank and refill with
clean fuel.
The transformer is broken Replace the transformer
The electrodes are not
positioned correctly
Check the distance of the electrodes
The fuel nozzle is dirty Clean the fuel nozzle
The fuel nozzle has worn out Replace the fuel nozzle
The fuel pump is damaged Replace the fuel pump
The fuel valve is damaged Replace the fuel valve
Water is present
in the pump oil
Casing side seal rings are
worn out
Replace the seal ring
Gaskets are worn out Replace the gaskets
Air being sucked in Check that all pipes and hoses are
secure
Dirty water filter Clean the water filter
Insufficient water supply Ensure the water supply can supply
the minimum volume required
Noise The springs on the suction
and/or delivery valves are
worn out or broken
Replace the valves
Foreign body caught in the
suction and/or delivery
valves
Check the valve and clean if needed
Worn out ball bearings Replace the ball bearings
Worn out gaskets Replace the gaskets
PROBLEM CAUSE SOLUTION

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SPECIFICATIONS
Motor
Motor Insulation Class F
Motor Protection IPX5
Voltage 230V 50Hz
Power 1.8 kW
Fuel Capacity (L) 12 Litres
Water supply
Max. feed temperature 40oC
Min. feed volume 6.1 l/m
Performance Data
Working pressure 90 Bar / 9 MPa
Max. pump pressure 110 Bar / 11 MPa
Max. water flow (l/min.) 6.1
Max. water temperature 90oC
Guaranteed sound power level LWA dB (A) 88
Measured sound power level LPA dB (A) 80
Dimensions
Length (mm) 400
Width (mm) 610
Height (mm) 940
Hose length 8 m
Weight (kg) 44

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WATER SYSTEM DIAGRAM

20
KITS AND ACCESSORIES