RADLEY RW2500 User manual

Pressure Washer
User Guide
RW2500

The engine exhaust from this product contains chemicals
known to cause cancer, birth defects or other reproductive
harm.
©2020 Radley. All Rights Reserved.
RW2500_UG_EN_2020-11-09

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SAVE THESE INSTRUCTIONS
This user guide contains important instructions for your
product, that should be followed during installation and
maintenance of the pressure washer.
This user guide covers the safety, operation and maintenance
procedures for the RW2500.
All information in this publication is based on the latest
product information available at the time of print.
No part of this publication may be reproduced
without written permission.

WARRANTY INFORMATION
email: [e-mail]
online: radley.midlandpowerinc.com
phone: [phone]
Warranty support, operation assistance and product support is provided by Midland
Power Inc., a licensed manufacturer of Radley Pressure washers. Please contact us
directly for any warranty service questions.
See ‘Limited Warranty’ for more information.
Product registration is required for product support and warranty coverage. You can
register online at radley.midlandpowerinc.com. Once your registration is complete,
your receipt will be on file and any future warranty claims will be easily created.

RWSERIES
TABLE OF CONTENTS
1. Safety 1
2. Learn About Your Pressure washer 5
2.1 Component Identification 5
2.2 Assembly Instructions 6
3. Pre-Operation Check 8
3.1 Prepare the Air Filter 8
3.2 Add Engine Oil 9
3.3 Add Fuel 11
3.4 Spray Wand and Hose Assembly 12
3.5 Check the Cold Water Supply 15
4. Starting your Pressure washer 16
4.1 Recoil Engine Start 17
4.2 Stopping the Pressure Washer 18
5. Pressure washer Operation 19
5.1. Using the Spray Wand 19
5.2. Using the Spray Nozzles 20
5.3 Working with Detergents 22
5.4 Detergent Dilution 23
5.5 Carburetor Modification for High Altitude Operation 23
6. Maintenance 24
6.1 Maintenance Schedule 25
6.2 Changing the Engine Oil 26
6.3 Pump OIl 28
6.4 Cleaning the Air-Filter 28
6.5 Nozzle Cleaning 29
6.6 Cleaning Water Inlet Filter 29
6.7 Spark Plug Service 29
6.8 Emission Control System 30
7. Transportation & Storage 32
8. Troubleshooting 35
9. Technical Specifications 37
10. Limited Warranty 38

1
1. SAFETY
DANGER!
Using a gas powered pressure washer indoors can kill you in minutes.
The engine exhaust from this product contains chemicals known to
cause cancer, birth defects or other reproductive harm.
1.1 OPERATOR SAFETY
WARNING!
Always perform an oil, fuel and air filter check before starting the
engine.
Properly clean and maintain the equipment.
Operate the pressure washer according to instructions for safe and
dependable service.
Before operating the pressure washer, read the user guide carefully.
Otherwise, personal injuries or equipment damage may result.
Never run the pressure washer in an enclosed area to avoid harm from
exhaust emissions of a poisonous carbon monoxide gas.
Be careful not to touch the exhaust system during operation due to risk
of burns.
Pay attention to the warning labels. The engine exhaust system will
become heated during operation and remain hot immediately after the
engine is stopped.
Gasoline is a highly flammable and explosive liquid. Refuel in a well
ventilated area with the engine stopped.
Use of gasoline with an ethanol content greater than 10% can damage
the engine and fuel system and will void the manufacturer’s warranty.
When refueling the pressure washer, keep it away from cigarettes, open
Using an engine indoors can KILL YOU IN MINUTES.
Generator exhaust contains carbon monoxide.
This is poison that you cannot see or smell.
NEVER use inside a home
or garage. EVEN if doors
and windows are open.
Only use OUTSIDE and
far away from windows,
doors, and vents.

2RWSERIES
flames, smoke and/or sparks.
Place the pressure washer at least 3 feet away from buildings or other
equipment during operation.
Run the pressure washer on a level surface. Tilting the pressure washer
may result in fuel spills.
Know how to stop the pressure washer quickly and understand
operation of all the controls. Never permit anyone to operate the
pressure washer without proper instructions.
Keep children, pets and machinery with rotating parts away during
operation.
Do not operate the pressure washer in rain or snow.
Do not touch the spark plug while the engine is operating or shortly
after the engine has been shut down.
Wear ear and eye protection while operating this unit.
1.2 USE SAFETY
WARNING!
NEVER direct the water spray towards electrical wiring, devices, or
directly at the pressure washer itself. Fatal electric shock may occur.
NEVER direct the water flow at people. The high pressure jet can be
dangerous if misused and must not be directed at people, animals,
electrical devices or the unit itself. DO NOT TREAT FLUID INJECTION
AS A SIMPLE CUT! Seek medical help immediately.
NEVER spray flammable liquids, risk of explosion. Operate only where
open flame or torch is permitted.
Always operate on dry, solid level ground.
DO NOT expose this product to excessive moisture, dust, or dirt.
DO NOT use in areas where fumes from paint solvents or flammable
liquids pose a potential hazard.
Inspect before each use, ensure all nuts, bolts, screws, hydraulic fittings,
hose clamps, wheels. etc. are securely tightened. Always check the
oil level before operating. Never operate when the product is in poor
mechanical condition.
Never move this product while spraying.
DO NOT run the engine when you are not using the product.
DO NOT use acids, solvents, alkaline, or flammable substances in this
product. They may cause injuries to the operator and will permanently
damage the machine.

3
Only use detergents that are designed to be specifically used with a
pressure washer. The user of other cleaning detergents may void the
warranty.
The spray gun will kick, hold with both hands.
Never run the unit dry, always be sure the water supply is turned on
fully before operating the unit.
Know how to stop the product and bleed pressure quickly. Be
thoroughly familiar with the controls.
DO NOT operate the pressure washer without the water turned on.
DO NOT overreach or stand on unstable surface. Keep good footing and
balance at all times.
Wear proper eye and ear protection while operating.
1.3 MAINTENANCE SAFETY
WARNING!
Turn off the engine before performing any maintenance. Failure to do so
can cause severe personal injury or death.
Before performing maintenance depressurize the unit by turning off the
water supply and squeezing the trigger of the spray wand until water
stops flowing.
Use rubber gloves when coming into contact with engine oil.
After any maintenance is performed, wash immediately using soap and
clean water because repeated exposure to lubricant may cause skin
irritation.
Do not clean the filter element with flammable liquids like gasoline
because an explosion may occur.
Allow the pressure washer set to cool down before performing any
maintenance.
Do not spray the pressure washer itself.
Always stop the pressure washer set before removing the oil filler cap.
Only qualified maintenance personnel with knowledge of fuels and
machinery hazards should perform maintenance procedures.
DO NOT let water in the pump freeze. See the storage section for
further details on how to store properly during the winter.
See ‘Maintenance Schedule’ for the recommended maintenance
schedule.

4RWSERIES
1.4 OTHER SAFETY TIPS
WARNING!
Running engines give off carbon monoxide, an odourless poisonous gas
that can cause nausea, fainting, or death. Do not start engine indoors or
in an enclosed area even if the windows and doors are open.
If you start to feel sick, dizzy, or weak after the pressure washer has
been running, move to fresh air RIGHT AWAY. See a doctor. You could
have carbon monoxide poisoning.
Pressure washers vibrate in normal use. During and after the use of the
pressure washer, inspect the pressure washer as well as hoses connected
to it for damage resulting from vibration. Have damaged items repaired
or replaced as necessary. Do not use hoses that show signs of damage
such as broken or cracked insulation or damaged connectors.
TOXIC FUMES HAZARD. Running engines give off
carbon monoxide, an odourless poisonous gas
that can cause nausea, fainting, or death. Do
not start engine indoors or in an enclosed area,
even if the windows and doors are open.
DANGER TOXIQUE. Faire fonctionner un moteur dégage de
l’oxyde de carbone, un gaz inodore toxique qui peut
provoquer la nausée, évanouissement ou la mort. Ne
démarrer pas le moteur à l’intérieur ou dans une espace clos,
meme si les fenêtres et les portes sont ouvertes.
Using a generator indoors can KILL YOU IN MINUTES.
Generator exhaust contains carbon monoxide.
This is poison that you cannot see or smell.
NEVER use inside a home
or garage. EVEN if doors
and windows are open.
Only use OUTSIDE and
far away from windows,
doors, and vents.

5
2. LEARN ABOUT YOUR PRESSURE WASHER
This section will show you how to identify key parts of your pressure washer. Going
over the terminology below will make sure we’re on the same page.
2.1 COMPONENT IDENTIFICATION
Nozzle Storage
Gas Cap
Recoil Starter
Handle
Fuel Tank
Engine Switch
Primer Bulb
Air Filter
Flat Free Tires
Thermal Relief
Valve
Strap
Handle
Spray Gun
Lance
Nozzle
Trigger Safety
Detergent
Tank
Oil Dipstick
Oil Drain Plug
High Pressure
Hose
High Pressure
Hose Outlet
Cold Water
Supply Inlet
Nozzle Storage
Gas Cap
Recoil Starter
Handle Fuel Tank
Engine Switch
Primer Bulb
Air Filter
Flat Free Tires
Thermal Relief
Valve
Strap
Handle
Spray Gun
Lance
Nozzle
Trigger Safety
Detergent
Tank
Oil Dipstick
Oil Drain Plug
High Pressure
Hose
High Pressure
Hose Outlet
Cold Water
Supply Inlet

6RWSERIES
2.2 ASSEMBLY INSTRUCTIONS
Setup of your pressure washer is designed to get you up and running as quickly as
possible.
Assembling the Wheels
1. Place a piece of cardboard down to protect the frame and tip the pressure
washer onto its side.
2. Insert the axle pin through the wheel and the frame.
3. Insert the cotter pin through the axle to lock it in place.
4. Repeat for second wheel.

7
Installing the Handle
1. Locate the handle in place and let it slide down to the pins.
2. Press the pins in while pressing down on the handle until it snaps into place.
Spray Gun Holder
1. Attach spray gun holder to the frame with the fasteners provided.

8RWSERIES
3. PRE-OPERATION CHECK
These quick checks should be done each time the pressure washer is started to
ensure you get the most out of your pressure washer.
Set the pressure washer on a level surface and the power switch to OFF.
WARNING!
Exhaust gas contains poisonous carbon monoxide. Never run the
pressure washer in an enclosed area. Be sure to provide adequate
ventilation. Operate the pressure washer on a level surface. If
the pressure washer is tilted, fuel spillage may result. Keep away
from rotating parts while the pressure washer is running. The
pressure washer is air-cooled and may be damaged if ventilation is
inadequate.
3.1 PREPARE THE AIR FILTER
Check the air filter before your first use. Check the maintenance schedule for a
complete cleaning guide.
1. Loosen the air filter cover. Remove the air filter housing and elements and
inspect for cleanliness.
2. Clean the foam air filter with soap and water or solvent and let dry.
3. Soak the foam filter in clean engine oil.
Foam Air
Filter
Air Filter
Housing

9
4. Gently squeeze and then pat out all excess oil and reinstall.
5. Replace the filter if it is damaged.E
Note
Running the engine without the air filter will quickly degrade the engine
Always inspect air filter before using the pressure washer. Check and
clean the air filter according to the maintenance schedule.
3.2 ADD ENGINE OIL
1. Ensure the pressure washer is on a level surface.
2. Unscrew one oil dipstick and clean the dipstick.
3. Check the oil level by reinserting the oil dipstick without screwing it back
in. Remove the dipstick and examine the oil level. If the level is at or below
the minimum oil level marked on the dipstick, refill to the maximum oil
level mark using a funnel.
4. Reinsert the dipstick and tighten securely.
Note
Max. Oil capacity: Max. 400mL
SAE 10W-30 is recommended for general use.
Do not tilt the pressure washer when adding engine oil. This could
result in overfilling and damage to the engine.
Using non-detergent or 2-stroke oil could shorten the engine’s working
life.
Use high quality engine oil with strong detergents.
Handle and store the engine oil with care, avoid getting dirt or dust into
the engine oil.
Maximum Oil Level
Minimum Oil Level
0°C 10 20 30 40 50-10-20-30
20 32°F 40 60 80 100 120
°C
°F0-20
15W-50
10W-30
Synthetic 5W-30
5W-30
Effective Viscosity Range of Engine Oils

10 RWSERIES
Do not mix different engine oils.
To avoid the inconvenience of unexpected engine shutoff, check the
engine oil level as often as possible.
Use 4-stroke engine oil, certified to meet or exceed API standard SG, SF,
SAE ratings
3.2.1 PUMP OIL
This unit has a sealed pump which ships filled with oil from the factory. There is no
need to add or change the pump oil.
Maximum Oil Level
Minimum Oil Level
0°C 10 20 30 40 50-10-20-30
20 32°F 40 60 80 100 120
°C
°F0-20
15W-50
10W-30
Synthetic 5W-30
5W-30
Effective Viscosity Range of Engine Oils
Maximum Oil Level
Minimum Oil Level
0°C 10 20 30 40 50-10-20-30
20 32°F 40 60 80 100 120
°C
°F0-20
15W-50
10W-30
Synthetic 5W-30
5W-30
Effective Viscosity Range of Engine Oils

11
3.3 ADD FUEL
WARNING!
Gasoline is highly flammable and explosive under certain conditions.
Refuel in a well-ventilated area with the engine stopped. Do not
smoke or allow open flames or sparks in the area where the pressure
washer is being refueled or where gasoline is stored. Do not overfill
the tank. Be careful not to spill fuel when refueling. Wipe up any
spilled gasoline and let the area dry before starting the engine.
Gasoline substitutes such as gasohol are not recommended. They
may be harmful to the fuel system components.
1. Check the fuel level by removing the fuel tank cap to visually check the
level.
2. Add fuel until the level reaches 1.5" below the top of the neck. Tighten the
fuel cap securely after refilling.
Note
Only use unleaded gasoline (Pump Octane 87 or higher).
Never use stale or contaminated gasoline, or an oil/gasoline mixture.
Avoid getting dirt or water into the fuel tank.
Do not use a mixture of gasoline containing methanol. This will cause
serious damage to the engine.
Use of gasoline with an ethanol content greater than 10% can damage
the engine and fuel system and will void the manufacturer’s warranty.

12 RWSERIES
3.4 SPRAY WAND AND HOSE ASSEMBLY
1. Rotate the coupler on the trigger handle assembly clockwise to tighten the
spray wand. Tighten by hand.
2. Rotate the coupler on the high pressure hose clockwise until secured onto
the spray gun. Tighten by hand.

13
HOOK UP THE HIGH PRESSURE HOSE
1. Attach the end of the high pressure hose to the high pressure outlet on the
pump by tightening clockwise.
Note
Double check the high pressure hose is securely tightened on both ends.
The pressure may cause bodily harm if the fittings separate.