NORSE SK90 User manual

SK90
Electric Pressure Washer
OPERATION MANUAL
Read this manual carefully before use and keep it for future reference. Failure to do so
may result in injury, property damage and may void the warranty.
Products covered by this manual may vary in appearance, assembly, inclusions,
specications, description or packaging.
V 3.1

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2 Contents
3 Quick Start Guide
4 Drawing from a barrel
5 Parts Guide
6 Maintenance
6 General Cleaning
7 Detergent
8 Looking After your Product
8 Post Operation / Storage
9 Safety Symbols
9 Safety and Warning Information
11 Troubleshooting
11 Technical Data
12 Disposal Regulations
13 CE Certication
Contents

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Quick Start Guide
The following steps describe the quickest method to get your pressure washer up and
running. However, it is essential you fully read this manual to ensure you are familiar with
the general safety features, precautions and functions necessary to operate the product.
Failure to do so may result in injury and damage to your washer or personal items.
Connect the other end of
the hose to the spray gun by
inserting next to the trigger. By
pulling slightly on the hose, it will
lock into the spray gun.
On
This high pressure washer
has built-in accessory
compartments. To assemble,
place handle into top of unit
and push forward to lock place.
Secure with included screw.
Install the quick connector lter
and the quick hose connector.
Attach the quick connector lter
by screwing it into the water
inlet of the power washer.
Connect one end of the high
pressure hose to the unit by
inserting it into front right side,
by pulling slightly on the hose it
will lock into the unit. The hose
is now securely attached.
Screw the quick hose connector
on to your garden hose and slide
onto the quick connector lter, it
will “click” into place.
Quick
connector
lter
Pump
Quick hose
connector hose
Insert the extension lance into
the end of the spray gun by
pushing together and turning
clockwise at the same time.
Insert the xed spray nozzle into
the end of the extension lance
by pressing the blue button on
the end of the extension lance,
then press the xed spray nozzle
into the extension lance and turn
clockwise until it “clicks into
place.

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When using detergent, attach the detergent bottle directly onto
the end of the xed spray nozzle until it “clicks” and turn to lock in
place.
Fill the detergent bottle with a properly formulated detergent or
cleaner with a water ratio according to instructions on the container.
The detergent bottle comes with a straw which is tted into the
screw-on top. If you do not see the straw, look inside the bottle and
attach it to the screw-on top.
WARNING! Always turn on the water supply before powering on the washer. Running the
machine without a water ow will damage the pump and motor.
• If you hear the motor run briey when the trigger is not being squeezed, that is normal. The pump is
priming itself so it is ready to operate when the trigger is squeezed. Turn off the power washer if not
being used after one minute.
• Do not pull trigger rapidly, this will cause the Total Stop System (TSS) to malfunction and unit will not
turn on. Pull trigger slowly and methodically.
• The o-rings on the bayonet end of the adjustable lance and detergent bottle should be cleaned
regularly and lubricated with light grease or petroleum jelly.
1. Unwind the power cord
completely and plug the
cable into a 240 volt outlet.
2. Turn on the water supply.
3. Turn the power on switch to
the ‘I’ on position.
4. Squeeze the trigger on the
gun.
Drawing from a barrel
First ensure the machine is switched off before connecting / disconnecting any hoses or attachments.
Instead of attaching the hose from pump to tap, use a smaller length of hose with a lter set placing the
lter end in the water supply.
It is advised that the water supply is on the same level as the washer. If you struggle to get initial suction,
remove the outlet hose from the pump and try drawing again - this reduces the pressure on the pump
making it easier to draw. Once owing, turn engine off and reconnect outlet hose before re-starting.

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D
Parts Guide
1. Power washer unit
2. Handle
3. Manual
4. Extension lance
5. Fixed spray nozzle
6. Detergent bottle
7. Spray gun (‘D’ shows trigger lock)
8. Nozzle cleaning tool
9. High pressure hose
10. Quick connector lter
11. Screw pack
12. Quick hose connector
13. Rotary brush
14. Triangle brush
15. 90 turbo nozzle
01 02
12 10
15
03
06 04 08
07
09
14
13
11
05

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• A clogged or partially clogged
nozzle can cause signicant
reduction of water pressure
coming out of the nozzle and/
or cause the unit to pulsate
while spraying.
• Turn the unit off.
• Turn off the water supply to
the unit.
• Relieve any pressure trapped
in the high pressure hose
by squeezing the trigger 2-3
times, and then lock the spray gun by pushing the lock button
from left to right.
• Using the nozzle tip cleaner provided (or an unfolded paper clip),
insert the wire into the nozzle hole and move back and forth until
debris is dislodged. Back ush water through the nozzle using a
garden hose.
The screen inside the quick
connector lter should be
cleaned periodically. Insert a pen
or pencil in small hole at the end
of the adapter. The screen lter
will slide out. Rinse it with clean
water, and then place it back in
the adapter.
Maintenance
Avoid Damaging Surfaces
Damage to surfaces occurs because the impact force of the water exceeds the durability of the surface.
Never use a narrow high impact stream or a turbo / rotary nozzle on a surface that is susceptible to
damage.
The surest way to avoid damaging surfaces:
1. Place the spray nozzle approximately 4-5 feet from and 45 degrees to the cleaning surface.
2. Vary the spray pattern, spray angle and the distance to the cleaning surface until optimum cleaning
efciency is achieved without damaging the surface.
Angle to the Cleaning Surface
When spraying water against a surface, maximum impact is generated when the water strikes the
surface head on. However, this type of impact tends to cause dirt particles to embed in the surface,
thereby preventing the desired cleaning action.
The optimum angle for spraying water against a surface is 45 degrees.
General Cleaning

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The following cleaning procedure will ensure that you achieve the
most benecial results in the shortest amount of time. Use the
detergent nozzle to apply detergent. Some cleaning tasks can be
completed with water alone, but for most tasks the removal of dirt
becomes more effective if a detergent is used.
NOTE: Only use mild, environmentally friendly detergents. Never
use aggressive chemicals, abrasive detergents or similar to avoid
damage to your health, the product and the environment.
Surface preparation
Clear the working area and make sure that all windows and doors are closed tightly. Make sure that all
plants and trees adjacent to the cleaning area are protected by a drop cloth.
Initial high pressure rinse
The next step is to spray the cleaning surface with water to clear off any dirt or grime that may have
collected on the surface. If you use detergent, this will allow your detergent to attack the dirt that has
worked its way into the cleaning surface. Before triggering the gun, adjust the nozzle to a wide spray
pattern and slowly adjust to the desired spray pattern. This will help you avoid applying too much
pressure to the surface that could cause damage.
Detergent application
Only use detergents formulated for pressure washers. Test the detergent in an inconspicuous area before
use. Follow the manufacturer’s label directions for mixing the correct concentrations of detergent to
water.
1. Unscrew the top of detergent applicator and ll with detergent.
2. Put the top of detergent applicator back on.
3. Attach the detergent bottle to the end of the xed spray nozzle, click into place.
4. Apply the detergent so it thoroughly covers the cleaning surface. Apply from bottom to top to prevent
the detergent from sliding down and streaking.
5. Allow the detergent to remain on the surface for a few minutes. This is a good time to use a brush to
lightly scrub heavily soiled areas. Never allow detergent to dry on the cleaning surface.
6. Remove detergent bottle from the xed spray nozzle.
7. Rinse detergent from surface.
8. Rinse the detergent bottle with clean water following each use.
9. Final rinse. Make sure you thoroughly rinse the surface and that all detergent has been removed.
Detergent

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Post Operation / Storage
• Do not store the pressure washer outdoors or in a location where it may freeze. Any water left in the
machine, gun or any other components will expand if allowed to freeze, causing damage.
• Always turn the motor off before turning the water supply off.
• Never disconnect the hose from machine while the system is pressurized. To de-pressurize, turn the
motor off, then turn the water supply off and squeeze gun trigger 2-3 times.
• Remove high pressure hose from the spray gun and the power washer.
• Remove extension lance and/or detergent bottle from the gun. Make sure to discard any remaining
detergent from the bottle. Flush the bottle and nozzle head with fresh water to prevent clogging.
• To release the high pressure hose from the unit, press the thumb tab down on the unit and the hose
will slide out from the connection.
• To release the high pressure hose from the spray gun, press the thumb tab on the underside of the
spray gun towards the trigger. The hose will slide out from the connections.
Looking After your Product
1. This pressure washer is not meant to pump hot water. Never connect to a hot water supply.
2. Never operate the unit for more than one minute without spraying water. This will cause a heat build-
up that can damage the pump.
3. Only use the nozzles supplied with the machine.
4. Never store the pressure washer outdoors or where it could freeze. The pump will be seriously
damaged. Any components with water left inside will also be damaged, e.g. the pressure gun.
5. Release the trigger when changing the spray pattern. Failure to do so could result in damage.
6. Do not operate the pressure washer with the inlet water screen removed. Be sure to keep the screen
clear of debris and sediment.
7. Make sure you clean the machine every three months and inspect the lter and the nozzle prior to
every use, ensuring there is no debris that may impair use.

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Safety Symbols
Safety and Warning Information
CAUTION: Indicates a
potentially hazardous
situation which, if not
avoided, may result in minor
or moderate injury.
WARNING: Indicates a
potentially hazardous
situation which, if not
avoided, could result in
death or serious injury.
Risk of
electrocution
WARNING: When the machine is used, the following precautions should always be
considered:
• To reduce the risk of injury, close supervision is necessary when the machine is used near children.
• Follow all safety codes as well as the Occupational Safety and Health Act (OSHA).
• Ensure safety devices are operating properly before using the machine. Do not remove or modify any
part of the spray gun or main unit of the machine.
• Stay alert at all times when using the machine and always hold the gun rmly when operating the
machine.
• Do not operate the machine when fatigued, suffering from reduced physical, sensory or mental
capabilities or whilst under the inuence of alcohol or drugs.
• Keep the operation area clear of all electrical equipment, persons, animals and pets. Do not leave the
machine unattended when setup for use. Always engage the trigger lock after use.
• Do not point the spray gun at anyone whilst the unit is connected to a water supply.
• Do not overreach or stand on an unstable support. Keep good footing and balance at all times.
• Use a cleaning agent supplied or recommend by the manufacturer. Always protect your eyes, skin,
and respiratory system from detergent use.
• If your eyes (or any other sensitive part of your body) comes into contact with detergent, rinse with
plenty of clean water.
• In the event of an accident, switch off the machine, pull the plug from the socket outlet and
disconnect the water supply.
• Always wear safety goggles, ear protection and protective clothing even when performing
maintenance.
• Never put hands or ngers over the spray gun / xed spray nozzle while operating the unit.
• Never try to stop or deect leaks with any body part.
To lock the trigger of the spray gun, make sure power is off (O), aim the spray gun away from you and
push the lock button up, after doing so, squeeze or pull the trigger to make sure it is locked and will not
move.

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WARNING: This is a double-insulated machine so two systems of insulation are provided
instead of grounding. No grounding means are provided for a double-insulated machine, nor
should grounding means be added to the machine. Servicing a double-insulated machine
requires extreme care and knowledge of the system. It should be done only by qualied
service personnel. Replacement parts for a double-insulated machine must be identical to
the original parts.
WARNING: To reduce the risk of electrocution, keep all connections dry and off the
ground. Do not touch the plug with wet hands.
WARNING: Do not use the machine if the supply cord or any important parts of the
machine are damaged (e.g. safety devices, high pressure hoses, etc).
WARNING: Do not use an inlet pressure that exceeds the operating pressure of any of the parts (hoses,
ttings, etc). Ensure all equipment and accessories are rated to withstand the maximum working
pressure of the unit.
WARNING: Never spray ammable liquids or use the pressure washer in areas containing combustible
dust, liquids or vapours.
WARNING: Do not spray electrical apparatus and wiring.
WARNING: To ensure machine safety, please only use original spare parts (including nozzles) from the
manufacturer or approved by the manufacturer.
WARNING: Make sure the inlet water is maintained between 0.01MPa and 0.4MPa.
WARNING: If the mains cable is damaged it must be replaced by the manufacturer, or its service agent
or similarly qualied person to avoid a hazard or injury.
WARNING: Use only extension cords intended for outdoor use and that have an electrical rating equal to
or more than the rating of the machine. Examine the cord before using and replace it if damaged. Keep
the cord away from heat and sharp edges. It is recommended that you use a cord reel that keeps the
socket at least 60mm above the ground.
CAUTION: Keep the hose away from sharp objects. Bursting hoses may cause injury. Examine the hose
regularly and replace it if damaged. Do not attempt to repair a damaged hose.
• Never disconnect the high pressure outlet hose from the machine while the system is pressurised. To
de-pressurise machine, turn power and water supply off, then press gun trigger 2-3 times.
• Never operate the machine without all of the components properly connected to the machine (handle,
gun / lance assembly, nozzle, etc).
• Never operate the pressure washer with broken or missing parts. Check equipment regularly and
repair or replace worn or damaged parts immediately.
WARNING: The electrical supply connection must be made by a qualied person and comply
with IEC 60364-1. The electric supply to this machine should include either a residual-
current device / circuit breaker that will interrupt the supply if the current to earth exceeds
30 mA for 30 ms.

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Troubleshooting
Technical Data
Symptom Possible Cause(s) Corrective Actions
No detergent
suction 1. Detergent bottle is clogged 1. Clean detergent bottle with warm water
2. Replace detergent bottle
Pressure washer
does not start up
1. Unit is pressurised
2. Plug is not connected correctly or
electrical supply is damaged / faulty
3. Thermal safety switch has tripped
1. Clean water inlet
2. Check that connections are properly
tightened
3. Switch off unit and allow to cool down
Pump does not
reach necessary
pressure
1. Water inlet is clogged
2. Pump sucking air from hose
connections
3. Fixed spray nozzle is worn or not
correct size
4. Unloader / valves are clogged/ worn
1. Clean quick connector lter
2. Check that connections are properly
tightened
3. Call the dealer
4. Call the dealer
Fluctuating
pressure
1. Pump is sucking air
2. Clogged nozzle
3. Valves dirty, worn or clogged
4. Water seals worn
1. Check that hoses and connections are tight
2. Clean with tip cleaner
3. Call the dealer
4. Call the dealer
Motor stops
suddenly 1. Thermal safety switch has tripped due
to overheating 1. Check mains supply voltage corresponds to specications
Item SK90
Working pressure 9 MPa / 90 BAR / 1300 PSI
Allowable pressure 13.1 MPa / 131 BAR / 1900 PSI
Maximum ow rate 435 Litres / hour
Motor capacity 1800 Watt
Power supply voltage 240V ~ 50HZ
Intake water pressure Max 1MPa
Max input temperature 40°
Dimensions 420 x 220 x 380mm
Weight 6.9 Kg

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Disposal Regulations
Do not dispose of electrical machines as unsorted municipal waste, use separate collection facilities.
Contact your local government for information regarding the collection systems available. If electrical
machines are disposed of in landlls or dumps, hazardous substances can leak into the groundwater and
get into the food chain, damaging your health and well-being.
For transportation safety, the machine should comply with ISTA.

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We hereby declare that the machine described below complies with the relevant basic safety and health
requirements of the EU Directives, both in its basic design and construction as well as in the version put
into circulation by us. This declaration shall cease to be valid if the machine is modied without our prior
approval.
The undersigned: Michael S McQuaide
As authorised by: Union Mart Ltd
Declares that
Description: Electric Pressure Washer
Identication code: NØRSE SK90
Conforms to the following European Directives:
(2006/42/EC)(2006/95/EC)(2004/108/EC)(2011/65/EU)
--
And are manufactured in accordance to the following standards or standardised documents:
(EN 55014-1)(EN 55014-2)(EN 60335-1)(EN 60335-2-79)(EN 61000-3-2)(EN 61000-3-3)
Sound power level:
Measured: 93 dB (A) – Guaranteed: 94 dB (A)
CE marking was afxed
Notied body: TÜV SÜD Product Service GmbH
The technical documentation is kept by: Union Mart Ltd
Date: 27/11/19
Signed:
Michael S McQuaide
Chief Executive Ofcer
Name and address of the manufacturer:
Union Mart Ltd, Company No. 8384155.
Registered address: Unit 15, Brickeld Industrial Estate Brickeld Lane, Chandler’s Ford, Eastleigh,
SO53 4DR
CE Certication