Jefferson JEFWASPET065HP/A User manual

OLYMPUS
User Manual
v.2.1
JEFWASPET065HP-A
DIRECT DRIVE PUMP
PETROL
PRESSURE WASHER

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USER MANUAL v2.1
JEFWASPET065HP-A
6.5HP Petrol Pressure Washer
www.jeffersontools.com
CONTENTS
Contents 3
About This Document 4
Specications 4
Equipment Indentication 5
Safety Guidelines 6
Unpacking & Assembly 7
Connections 8
Pressure Washer Nozzles 9
Starting the Washer 10
Using the Spray Gun 10
Washing & Cleaning 11
Pressure Adjustment 11
Cleaning With Detergents 12
Shutdown Procedure 12
Maintenance 13
Storage 15
Troubleshooting 16
EC Declaration of Conformity 17
Parts Diagram - Main Assembly 18
Parts List - Main Assembly 19
Parts Diagram - Pump 20
Parts List - Pump 21
Parts Diagram - Engine 1. Cylinder Head 22
Parts List - Engine 1. Cylinder Head 22
Parts Diagram - Engine 2. Crankcase Assembly 23
Parts List - Engine 2. Crankcase Assembly 23
Parts Diagram - Engine 3. Crankcase Cover 24
Parts List - Engine 3. Crankcase Cover 24
Parts Diagram - Engine 4. Crankshaft Piston 25
Parts List - Engine 4. Crankshaft Piston 25
Parts Diagram - Engine 5. Camshaft 26
Parts List - Engine 5. Camshaft 26
Parts Diagram - Engine 6. Carburetor 27
Parts List - Engine 6. Carburetor 27
Parts Diagram - Engine 7. Recoil Starter 28
Parts List - Engine 7. Recoil Starter 28
Parts Diagram - Engine 8. Control 29
Parts List - Engine 8. Control 29
Parts Diagram - Engine 9. Flywheel 30
Parts List - Engine 9. Flywheel 30
Parts Diagram - Engine 10. Air Filter 31
Parts List - Engine 10. Air Filter 31
Limited Warranty Statement 32

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USER MANUAL v2.1
JEFWASPET065HP-A
6.5HP Petrol Pressure Washer
www.jeffersontools.com
ABOUT THIS DOCUMENT
This manual has been compiled by Jefferson Tools and is an integrated part of the product with which it's enclosed and should be kept with it for
future reference. Please read all of the information supplied in this User Manual before operating this product.
This manual describes the purpose for which the product has been designed and contains all the necessary information to ensure its correct and
safe use. We recommend that you read the information supplied before carrying out any maintenance or repair. By following all the general safety
instructions contained in this manual you will help to ensure operator safety and extend the potential life span of the equipment.
All photographs and drawings in this manual are supplied by Jefferson Tools to help illustrate the operation of the product. Whilst every effort
has been made to ensure accuracy of information contained in this manual our policy of continuous improvement determines the right to make
modifications without prior warning.
Contact your nearest Jefferson Dealer if you are unsure about any information included in this manual or require any additional information about
the safe use, operation maintenance, or repair of this equipment.
SPECIFICATIONS
Model Number: JEFWASPET065-A
Engine: 6.5HP Single Cylinder, 4 Stroke, OHV Petrol Stage V
Starting System: Recoil
Displacement: 196cc
Pump: Direct Drive - Axial - Aluminium Head
Maximum Pressure: 2700psi / 186bar / 18.6Mpa
Rated Pressure: 2400psi / 165bar / 16.5Mpa
Rated Flow: 8.6L/Min
Working Speed: 3400rpm
Guaranteed Sound Power Level: 98dB Lwa*
Fuel Tank: 3.6L
Hose Length: 7.6M
Wheel Diameter: 12"
Dimensions: 590 x 540 x 595mm
Weight: NW: 28kg / GW: 30kg
* Sound Power Level:
The figures quoted in this table are emission (sound power) levels and are not necessarily safe working levels. Whilst there is a correlation between the emission and exposure
levels, this can not be used reliably to determine whether or not further precautions are required.
Factors that influence the actual level of exposure to the work-force include the characteristics of the work room, the other sources of noise, the number of machines and
other adjacent processes, and the length of time for which an operator is exposed to the noise. Also the permissible exposure level can vary between regions. This information,
however, will allow the user of the machine to make a better evaluation of the hazard and risk.

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USER MANUAL v2.1
JEFWASPET065HP-A
6.5HP Petrol Pressure Washer
www.jeffersontools.com
EQUIPMENT IDENTIFICATION
ss
Important: After unpacking, inspect the equipment carefully and ensure that the product is in perfect condition without any defects or no dam-
aged or worn parts. Please dispose of all the packaging materials appropriately, recycling all materials where facilities are available.
6.5HP Stage V OHV Petrol Engine
Heavy Duty Solid Wheels
Liquid Detergent Resevoir
Direct Drive Axial Pump
3.6L Fuel Tank
Fuel Cap
Rotating Arm / Frame Fold Lock
7.6M Pressure Hose
Storage Handle
Pressure Nozzles
Spray Gun / Lance
Exhaust Silencer
Filter

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USER MANUAL v2.1
JEFWASPET065HP-A
6.5HP Petrol Pressure Washer
www.jeffersontools.com
SAFETY GUIDELINES
Please read and ensure that you understand all of the operating instructions, safety precautions and warnings in
this Instruction Manual before operating or maintaining this equipment.
An accident can often be avoided by recognizing a potentially hazardous situation before it occurs, and by
observing the appropriate safety procedures. Hazards that must be avoided to prevent bodily injury or machine
damage are identied by warnings on the equipment and in this Instruction Manual.
Never use this equipment or modify it in any way that has not been specically recommended by the
manufacturer. Contact a qualied electrician for advice on any issues relating to electrical safety in your working
environment.
EQUIPMENT SAFETY
This equipment should only be operated by qualied and responsible individuals who have read and understood the information and guidelines
described in this document. In particular, the following safety instructions should be followed to reduce the risk of injury to the operator and
members of the public.
1. Ensure that all the necessary safety precautions are observed for the handling of fuel.
2. Familiarise yourself with this equipment and its operation before use - read this user manual carefully before use. Save for future reference.
3. This appliance is for outdoor use only. Ensure that all bystanders are kept at a safe distance and that animals and children are kept from the
work area. Ensure that the exhaust emissions are kept away from air intakes.
4. Never use this equipment if any part or accessory is damaged or malfunctioning.
5. This appliance has been designed for use with detergents specied by the manufacturer (for example neutral shampoo based on
biodegradeable anionic surface active detergents). Please consult the manufacturer for advise before using other detergents or chemicals in order
to prevent damage to the equipment and the environment.
6. Do not direct the nozzle towards mechanical parts containing lubricant grease. High pressure jet can be harmful and dangerous always ensure
a safe working distance when spraying objects and assess and x the appropriate nozzle for the job at hand. Never point the high pressure hose
directly at people animals, live electrical parts or the appliance itself.
7. Do not step or stand on the high pressure hose and ensure that the hose is clean, free from debris, obstructions and kinks before use. Always
unwind the hose fully before use.
8. Check and ensure that the nozzle has been tted correctly before use as the high pressure can result in the nozzle being "red" from the lance
with considerable force if not tted correctly.
9. Beware of kick-back force and the sudden torque on the spray gun assembly when operating the trigger.
10. Ensure that you have evaluated the pressure required for the job at hand and selected the appropriate nozzle before use. High pressure jets
can remove paint and other specialised surface treatments (including alloy wheel lacquer). High pressure jets may also breakdown and remove the
grouting between paving slabs and can even damage tarmac. that the equipment is kept in good working order and cleaned and serviced
regularly. Regularly check external nuts and xings to ensure that they have not loosened from vibration during use.

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USER MANUAL v2.1
JEFWASPET065HP-A
6.5HP Petrol Pressure Washer
www.jeffersontools.com
11. Always shut the equipment off completely when not in use and if left unattended.
12. Keep the hose clear from the engine exhaust as this can be extremely hot before and after use and can burn and damage the hose.
13. Never refuel the engine when it is running, and allow the engine to cool sufciently before refuelling. Dry up any fuel spillage before restarting
the equipment. Only use fresh clean high-quality fuel. Always restart the equipment away from the refuelling area. Fill tank to within 10mm of neck
to allow space for fuel expansion.
14. Do not operate this equipment in an explosive atmosphere, near combustible materials.
15. Only operate outdoors in well-ventilated areas.
16. Never run the engine without oil - always check for oil and rell where necessary before use.
17. Only use Jefferson-approved replacement parts to repair this equipment. Never modify the equipment in anyway. Ensure that the equipment
is kept in good working order and cleaned and serviced regularly. Regularly check external nuts and xings to ensure that they have not loosened
from vibration during use.
18. After use: remove the spark plug ignition lead from the back of the spark plug and position the lead to prevent avoid accidental reconnection.
Store in a clean dry environment. Store all fuel in a suitable container designed for petrochemical applications - away from heat and out of direct
sunlight.
UNPACKING & ASSEMBLY
Unpacking & inspection:
After opening the carton, unpack the washer and related parts and accessories.
Inspect the equipment for any damage that may have occurred during transit,
contact your nearest Jefferson Dealer is any damage or defects are discovered.
Check that all nuts and bolts are secure before putting the washer into operation.
Warning: Do not use this equipment is damaged or defective in any way.
Frame assembly:
1. Carefully tip the washer forward and place on its front side and proceed to
assemble the parts with the tools provided.
2. Insert the axle into the corresponding holes on the lower frame.
3. Attach the wheels to the shadt using the bushings, washers and cotter pins
provided. Insert the cotter pins into the holes in the axle and bend back the cotter
pins using a pair of pliers (not provided)
4. Attach the rubber feet to the lower frame using the nuts and bolts provided
(tighten all mounting hardware)
5. Reposition the washer so that it stands normally on the wheels and rubber feet.
6. Pull the handle lock pin and raise the handle to the upright position. Release and
snap the locking pin into the corresponding hole in the frame.
7. Assemble the top and bottom spray gun holders to the frame using the nuts and
bolts provided. Again tighten all mounting hardware.

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USER MANUAL v2.1
JEFWASPET065HP-A
6.5HP Petrol Pressure Washer
www.jeffersontools.com
CONNECTIONS
Connecting the pressure hose to the pump
1. Pull back the high pressure outlet tting collar. Insert the connector into the quick release tting
and release the collar to close the tting. Carefully tug on the tting to ensure it is secured.
Connecting the hose to the spray gun
1. Pull back the slip ring on the female quick connect tting and connect with the male outlet on
the spray gun.
2. Release the slip ring on the female quick disconnect and twist. Listen for a "click" to ensure that
the coupling is secure.
Connecting the Lance to the Spray Gun
1. Remove the protective plastic cap on the lance connection.
2. Thread the lance connection onto the spray gun as shown
3. Tighten the nut to secure
Connecting the Nozzle / Removing the Nozzle
1. Insert the nozzle into the quick- connect tting on the lance and press to snap in the nozzle.
2. To remove pull back the slip ring to eject the nozzle. See page 8 for more information about
nozzle selection for various applications.
Connecting the pressure pump to the water supply
1. Connect the garden hose to the water supply and turn the water supply on to run water through
the hose and remove any debris prior to connecting to the pressure washer, then turn off the
supply.
2. Check the lter inside the pressure washer inlet is clean and undamaged. Thread the garden
hose tting into the water hose inlet. Hand tighten to make a secure connection.
3. Turn on the water supply and check that there are no leaks. Ensure that there is a minimum of
20psi and a ow rate of 5GPM.
Preparing the pump for first use
This equipment is shipped with a special oil plug to prevent oil leakage from the pump during
shipping.
You will need to replace the shipping plug with the breather plug provided before use. Hand tighten
the breather plug to avoid damaging the threads.

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USER MANUAL v2.1
JEFWASPET065HP-A
6.5HP Petrol Pressure Washer
www.jeffersontools.com
PRESSURE WASHER NOZZLES
This equipment comes complete with ve different colour-coded spray nozzles.
Each nozzle delivers a specic spraying pattern for a particular cleaning applica-
tion.
The size of the nozzle determines the size of the spray jet and the pressure deliv-
ered from the nozzle.
The 0˚, 15˚, 25˚, 40˚ nozzles are high pressure nozzles, the 84˚ chemical nozzle is
for use in low pressure applications.
WARNING:
This equipment operates at uid pressures and velocities high enough
to penetrate human esh. Leaks caused by loose ttings or worn or
damaged hoses can result in injection injuries. Do not direct the spray jet
towards people or animals as the jet is very powerful and serious injury
can occur. Wear the appropriate safety equipment when operating this
equipment.
Do not attempt to change the nozzles when the equipment is running.
Always shut down the engine completely before changing the nozzles.
Changing Nozzles:
1. Pull back the collar on the end of the lance and insert the nozzle into the female
quick release socket.
2. Release the collar and twist the nozzle to make sure that it is secure in the quick
release socket. Ensure that the nozzle is secure before squeezing the gun trigger
when the engine is running.
Basic Nozzle Types and Applications:
• Cutting Nozzle (0˚):
High pressure cleaning (stone, metal etc.)
• Chisel Nozzle (15˚):
Mid pressure cleaning (stone, metal, wood etc.)
• Flushing Nozzle (25˚):
Low - Mid pressure cleaning (metal, plastics, wood etc.)
• Wide Wash Nozzle (40˚):
Low pressure, everyday use (wood plastics etc.)
• Detergent Nozzle (84˚):
Delicate materials
0˚
15˚
40˚
84˚
25˚

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USER MANUAL v2.1
JEFWASPET065HP-A
6.5HP Petrol Pressure Washer
www.jeffersontools.com
STARTING THE PRESSURE WASHER
1. Ensure that the equipment is operating in a well ventilated
outdoor area. Check fuel level and top-up if necessary.
2. Check the engine oil level. On first use there will be a small
amount of oil left from factory testing but this will always require
topping up.
This equipment is shipped with a low-oil sensor that will prevent
startup if insufficient oil is available for operation. The low oil
sensor will also shut down the engine when level is too low to
protect the engine.
3. Check that the filter is clean and in place at the water inlet (cone
side facing out).
4. Connect the water supply to the pump inlet. (Note: the water
source must provide a minimum of 19L / Min at 20PSI for this
equipment to operate.
5. Connect the high pressure water hose to the pump outlet. Turn on the
water supply.
6. Make sure that the Throttle lever is set to the "FAST" position. Slide the
fuel lever to the "ON" position and allow the fuel to flow to the engine.
Slide the choke lever to the "Start" position. Turn the Engine ON/OFF switch to the ON position. Pull the starter cord to start the engine. Slide the
choke lever to RUN position.
7. Stand on a stable surface, gripping the gun with both hands, and press the trigger to begin spraying - expect the gun to kickback when
triggered. Adjust the spray nozzle as required for the task.
8. Release the trigger to stop water flow and enter bypass mode pior to spraying.
WARNING:
• Do not leave the pressure washer in bypass mode for more than 2 minutes at a time. Water temperature inside the
pressure washer pump will rise to dangerous level and can result in damage to internal components within the pump.
• Failure to follow this warning can result in personal injury and damage to the equipment and will void the warranty.
• Do not run the pump without a connection to the water supply. Any damage caused by such use will void the
warranty.
• Always wear the appropriate safety equipment when using this equipment.
• The high pressure water jet produced can cut through skin and underlying tissues resulting in serious injury.
• Never point the jet at people or animals.
• Beware of kickback when spray gun trigger is pressed.

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USER MANUAL v2.1
JEFWASPET065HP-A
6.5HP Petrol Pressure Washer
www.jeffersontools.com
USING THE SRAY GUN
1. To engage the Trigger Lock, pull the lock up until it clicks into the slot.
2. To disengage the Trigger Lock push the lock down and into its original position.
To operate the trigger:
Squeeze the trigger to start the water flow through the nozzle.
Release the trigger to stop the water flow.
WASHING & CLEANING
1. Grip the spray gun with both hands.
2. Point the nozzle in a safe direction and squeeze the spray gun trigger to
allow the pump to purge air and impurities in the system and then redirect
the nozzle to the working surface.
3. When finished release the trigger gun to stop the water flow.
Important: For most effective cleaning keep the spray nozzle
approximately 8 to 24 inches away from the cleaning surface.
When cleaning tyres do not bring the nozzle within 6 inches of the surface
to avoid damage and potential injury.
PRESSURE ADJUSTMENT
1. Vary the Cleaning Distance.
One method of adjust the pressure on the cleaning surface is to vary the
distance between the nozzle and the object you are cleaning.
2. Change the pressure nozzle.
Completely shut down the pressure washer and stop
the petrol engine. Change the spray nozzle as required
for the cleaning application.
3. Adjust the pump pressure regulator.
The pump pressure regulator allows pressure adjustment at the pump.
Turn the pressure regulator knob on the pressure pump counterclockwise /
clockwise to increase and decrease.

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USER MANUAL v2.1
JEFWASPET065HP-A
6.5HP Petrol Pressure Washer
www.jeffersontools.com
CLEANING WITH DETERGENTS
WARNING:
Use only soaps and chemicals designed for petrol washers - if in doubt contact your nearest Jefferson Tools retailer
for advise. Do not use bleach to spray with this equipment. Applying chemicals or cleaning solvents is a low pressure
operation. Chemicals, soaps and cleaning solvents will not siphon when a high pressure nozzle is used. Always use the
black detergent nozzle for chemical and solvent cleaning.
To Apply Detergent:
1. With pressure washer turned off, Prepare the detergent solution as recommended by the manufacturer.
2. Remove the detergent tank cap (located in front of the pressure washer).
3. Fill the tank with the prepared detergent solution using a funnel if necessary. Replace the detergent tank cap.
4. Lock the trigger and attach the Black Detergent Nozzle to the wand.
5. Start the pressure washer. Unlock the trigger and squeeze the spray gun trigger and apply detergent to the cleaning surface using long, even &
overlapping strokes.
6. Allow the detergent to "soak in" for 3-5 minutes before washing and rinsing. Reapply as required to prevent the surface from drying. Do not
allow the detergent to dry on the surface (this will result in streaking).
To Rinse:
1. Shut down the pressure washer. Replace the detergent nozzle with a suitable cleaning nozzle. Squeeze the trigger and wait for the detergent to
clear.
2. Keep the spray gun a safe distance from the area you plan to spray.
3. Start at the top of the cleaning area working down with consistent overlapping strokes.
Flush the system:
1. Turn off the engine and ll the detergent tank with clean water.
2. Remove the nozzle and turn the washer back on.
3. Point the wand in a safe direction and squeeze the trigger to ush clean
water through the detergent tank and pressure washer system until it is
thoroughly clean.
SHUTDOWN PROCEDURE
1. If you have used any chemicals rinse system thoroughly as outlined previously to prevent damage to the pump.
Never turn the water supply off when the engine is running.
2. To stop the engine set the engine switch on the side of the engine to the OFF position.
3. Turn the water supply off and disconnect the garden hose from the pressure washer.
4. Pull the trigger on the spray gun to relieve any water pressure in the hose or the gun.
5. Allow the engine to cool before folding down the frame in preparation for storage.
WARNING:
Leaving chemicals and cleaning solutions in
the pressure pump could result in damage
to the pump components. Any damage
caused by soap or detergent residue will not
be covered under warranty.

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USER MANUAL v2.1
JEFWASPET065HP-A
6.5HP Petrol Pressure Washer
www.jeffersontools.com
MAINTENANCE
To ensure efficient operation and longer life of your pressure washer a routine maintenance schedule should be prepared and followed. If the
equipment is used in unusual conditions such as high-temperature or dusty conditions more frequent maintenance checks will be required.
WARNING:
Before performing any maintenance be aware that the equipment should be completely shutdown, depressurised and
allowed to cool down. This will ensure that no injuries can be sustained by moving parts, water pressure or hot surfaces.
Engine contains flammable fuel do not smoke near or work near naked flames while maintaining this equipment.
Please note: All repairs should be carried out by Jefferson approved engineers. All replacement parts should be supplied
or recommended by Jefferson. Any unapproved repairs or modifications will invalidate the warranty.
Engine:
Check the engine regularly, replace oil, clean spark plugs and maintain parts as required.
Pump Oil:
Change the pump oil regularly. Change the pump oil after the first 50 hours of work and
successively every 100 hours. In either case ensure that the oil is changed at least once a year.
Oil Type: SAE 15W-40
Spray Gun:
If the nozzle becomes clogged with dirt and debris excessive pressure can build up. If the
nozzle becomes partially clogged or restricted the pump pressure will fluctuate and can
become harmful and dangerous.
Clean the nozzle immediately and follow these instructions:
1. Shut-off the engine and turn off / disconnect the water supply.
2. Pull the trigger on the gun to relieve any water pressure.
3. Disconnect the lance from the gun.
4. Remove the nozzle from the lance - remove any obstructions with the nozzle cleaning
tool provided and back flush with clean water.
5. Direct the water supply into the spray wand end to back flush loosened particles for 30
seconds.
6. Reassemble the nozzle onto the lance.
7. Reconnect the lance to the gun and turn on the water supply.
8. Start the washer pump and place the lance into the high pressure setting to test.
Cleaning The Water Filter:
The water filter should be checked regularly and cleaned if necessary:
1. Remove the filter by grasping the end and removing it from the water inlet on the pump.
2. Clean the filter by flushing it with water on both sides.
3. Re-insert the filter in the water inlet on the pump.
Cleaning the Fuel Tank Filter:
The fuel tank filter should be removed and cleaned after every 150 hours of running or every 3 months using an environmentally-friendly water-
based de-greasing agent. Refit when clean.

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USER MANUAL v2.1
JEFWASPET065HP-A
6.5HP Petrol Pressure Washer
www.jeffersontools.com
Cleaning the Fuel Tank Filter:
The fuel tank filter should be removed and cleaned after every 150 hours of running or every 3 months using an environmentally-friendly water-
based de-greasing agent. Refit when clean.
Maintenance Schedule:
Frequency
Item Task Description Each
Use
1st Month
(20Hrs)
Each Season
(50Hrs)
Every
6 Months
(100Hrs)
Every
Year
(300Hrs)
Engine Oil Oil Level Check •
Replace • •
Reduction gear
oil
Oil Level Check •
Replace • •
Air Cleaner
Check •
Clean •x •x*
Replace •**
Deposit Cup Clean •
Spark Plug Clean, adjust •
Replace •
Spark Eliminator Clean •
Idling Check, Adjust •∆
Valve Clearance Check, Adjust •∆
Fuel Tank &
Filter
Clean •∆
Fuel Supply Line Check Check with your Jefferson dealer for advice
if any problems are detected
Key:
* = Only for inside ventilating double core carburettors
** = Only for paper core cleaners
x = Repeat task more often than scheduled if equipment is used in dusty working environments
∆ = Maintenance to be carried out by an approved technician
Parts & Servicing
For Jefferson approved replacement parts contact your
nearest dealer or contact Jefferson tools
Telephone: [phone]
Fax: [phone]
Email: [email protected]

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USER MANUAL v2.1
JEFWASPET065HP-A
6.5HP Petrol Pressure Washer
www.jeffersontools.com
STORAGE
After General / Regular Use
1. Drain all water from the high pressure hose, coil it and hang on the cradle on the petrol washer frame. If chemicals where used ensure the pump
and chemical hose are thoroughly cleaned out
2. Drain all the water from the gun and lance by holding the gun in a vertical position with the nozzle end pointing down and squeeze the trigger.
Store in the gun/hose holder
Preparation for Winter and Long-term Storage
Note: It is recommended that you follow these steps tp protect the internal seals of the pump when storing the equipment for more than 30 days
and or when, freezing temperatures are expected.
1. Obtain a funnel, 200ml of anitfreeze and approximately 1M of garden hose with a male hose connector attached to one end
2. Disconnect the spark plug wire
3. Connect the hose to water inlet on the pump
4. Pour the antifreeze into the hose via the funnel
5. Pull the engine starter cord slowly several times until antifreeze comes out of the high pressure water hose connection on the pump
6. Remove the short hose from the water inlet on the pump
7. Reconnect the spark plug wire
Service After Storage
Before reusing the equipment after storage, you should carry out the following to keep the equipment in good
Storage Time Service Task
Within one month No service required
One - two months Drain out the existing fuel out of the fuel tank and fresh fuel
Two months - one year 1. Drain out the existing fuel out of the fuel tank and fresh fuel
2. Drain the fuel out of the carburettor*
3. Empty the deposit cup**
Over a year 1. Drain out the original fuel of the fuel and refuel
2. Drain the fuel out of the carburettor*
3. Empty the deposit cup**
Start the engine and allow to run for a few minutes
Key:
* = Unscrew the drain plug and drain out the fuel in the carburettor
** = Turn engine switch to the OFF position, disconnect the deposit cup and empty contents safely
Note: Do not dump oil vessels or discarded engine oil onto the ground. Take all discarded engine oil in a closed container to your nearest recycling
station.

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USER MANUAL v2.1
JEFWASPET065HP-A
6.5HP Petrol Pressure Washer
www.jeffersontools.com
TROUBLESHOOTING
Engine Troubleshooting:
Fault Probable Cause Repair
Engine fails
to start
Low engine output
Engine runs
erratically
Insufcient
compression
Loose spark plug Tighten the spark plug
Loose cylinder head bolt Tighten the head bolt
Damaged gasket Replace the gasket
Sufcient
compression
Fuel System Problems
No fuel supplied
to the combustion
chamber
Starter cord Pull the start cord sharply
Debris in the fuel tank Clean the tank out
Blocked fuel line Clean the fuel line*
Insufcient fuel in the tank Refuel
Fuel tap is closed Open the tap
Electric System Problems
Combustion
chamber supplied
with fuel
Poor
spark
from the
plug
Dirty plug Clean / dry the plug
Damaged
spark plug
Replace the spark plug
Faulty
magneto
Contact your nearest
Jefferson dealer for advice
Good
spark
Carburetor
incorrectly
adjusted
Insufcient pull
speed on recoil
cord
Pull the recoil starter rope sharply
Wrong grade of fuel being used Check the quality of
the fuel
Overloading Assess the working
conditions
Overheating
Pump Troubleshooting:
Fault Probable Cause Solution
Fluctuating pressure
levels
Pump is drawing in air Check connections
and tighten if required to seal
Faulty or dirty valves Contact your nearest Jefferson dealer for advice
Blocked nozzle jet Remove debris from the nozzle using the cleaning tool
Water leaking from the pump Seals are worn out Contact your nearest Jefferson dealer for advice
Pump will not reach the
required pressure
The pump is sucking air from
connections or the hose
Check all connections and tighten if required
The suction delivery valves are
clogged
Clean the valves
Arrange to have the equipment serviced at your nearest Jefferson
repair centre
The unload valve is stuck Loosen and re-tighten the
regulating screw
Nozzle is dirty, worn out or there is
a problem with the lance
Clean the nozzle
Check the connections on the lance
Replace parts if required
Pump is running but no water
Kinked inlet or pressure hose
Damaged hose
Check, clean, straighten
Replace the hose
Blocked inlet lter Remove and clean the lter
Blocked jet Remove the blockage using the nozzle cleaning kit

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USER MANUAL v2.1
JEFWASPET065HP-A
6.5HP Petrol Pressure Washer
www.jeffersontools.com
EC DECLARATION OF CONORMITY
We, Jefferson Professional Tools & Equipment, as the authorised European
Community representative of the manufacturer, declare that the following equipment
conforms to the requirements of the following:
Directive / Standard / Regulation Description:
2000/14/EC (as amended) Noise Emission in the Environment by Equipment for Use Outdoors
2014/30/EU (as amended) Electromagnetic Compatibility
2006/42/EC (as amended) Machinery Directive
(EU) 2016/1628 (as amended) Non Road Mobile Machinery Directive
Equipment Category: Pressure Washer - Petrol Engine
Product Name/Model: JEFWASPET065HP-A
6.5HP Petrol Pressure Washer
Guaranteed Sound Power Level: 98dB Lwa
The conformity assessment procedure followed was in accordance with Annex VI of
the Outdoor Noise Directive
EU type-approval number: e9*2016/1628*2016/1628SYA2/P*1104*00
Signed by: Stephen McIntyre
Position in the company: Operations Director
Date: 18 November 2019
Technical file holder's address as shown below
Name and address of manufacturer
or authorised representative:
Jefferson Tools, Herons Way, Chester Business Park,
Chester, United Kingdom, CH4 9QR
Telephone: [phone] Fax: [phone]
Email: [email protected]

18
USER MANUAL v2.1
JEFWASPET065HP-A
6.5HP Petrol Pressure Washer
www.jeffersontools.com
PARTS DIAGRAM - MAIN ASSEMBLY

19
USER MANUAL v2.1
JEFWASPET065HP-A
6.5HP Petrol Pressure Washer
www.jeffersontools.com
PARTS LIST - MAIN ASSEMBLY
# Description QTY
1Pump Assy 1
2Flange Bolt 4
3Flat Key 1
4Engine Assy 1
5Flange Nut 8
6Stud Bolt Cushion Socket 4
7Tank Cap 1
8Cleanout Fluid Tank 1
9Flat washer 2
10 Flange Bolt 2
11 Rubber Blanket 1
12 Hex Bolt 1
13 Frame 1
14 Flat washer 2
15 Wheels 2
16 Axle 2
17 Lock Pin 2
18 Rotating arm 2
19 Fixing bolt 4
20 Flat washer 6
21 Spring washer 4
22 Flange nut 5
23 Flange bolt 4
24 Spraying gun support 1
25 Flange bolt 1
26 Frame Handle 1
27 Handle Rubber 1
28 Spraying gun holder 1
29 Nozzle Panel 1
30 Nozzle Fixed Seat 5
31 Nozzle 1
32 Nozzle 1
33 Nozzle 1
34 Nozzle 1
35 Nozzle 1
36 Pressure Hose 7.6M 1
37 High Pressure Spraying Gun 1
38 Spray Lance 1
39 Suction pipe 0.7M 1

20
USER MANUAL v2.1
JEFWASPET065HP-A
6.5HP Petrol Pressure Washer
www.jeffersontools.com
PARTS DIAGRAM - PUMP