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6

USER MANUAL 

v2.1

JEFWASPGRO65HP

6.5HP Gearbox Petrol Washer

www.jeffersontools.com

  SAFETY GUIDELINES 

  

This equipment should only be operated by qualified 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 specified by the manufacturer. Please 
consult the manufacturer or supplier 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 fix 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 fitted 

correctly before use as the high pressure can result in the 
nozzle being "fired" from the lance with  
considerable force if not fitted 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. 

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 sufficiently 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 refill where necessary before use. 

17. 

Only Jefferson approved engineers should carry 

out repairs and maintenance on this equipment. 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 fixings 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.  

Summary of Contents for 6.5HP

Page 1: ...User Manual v 2 1 12 6 L min Flow Rate 2700psi 185 Bar Rated Pressure GEARBOX PETROL WASHER Powered By ...

Page 2: ......

Page 3: ...l 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 W...

Page 4: ...her 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...

Page 5: ...rom obstructions Ensure that the work area is equipped with fire extinguishers suitable for petrol fires Never operate the pressure washer in an area containing dry brush or weeds Always keep the pressure washer a minimum of four feet away from surfaces that could be damaged by muffler exhaust heat for example houses cars plants etc Always store fuel in an OSHA approved container in a secure locat...

Page 6: ...can result in the nozzle being fired from the lance with considerable force if not fitted 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 treatmen...

Page 7: ...s to turn freely 3 Assemble the rubber feet Fit the rubber feet to the legs as shown in Fig 3 4 Assemble the gun hose hook Fit the hook into the position shown in Fig 4 5 Prepare the pressure pump and gearbox The pressure pump and gearbox are packed with a shipping plug inserted into the opening for the pump breather plug It is important that the shipping plug is removed and replaced with the dips...

Page 8: ...the engine does not run properly please check that you are using the correct type of fuel The engine is certified to run on petrol The emission control system for this engine is EM Engine Modifications 1 Turn the pressure washer Off and let it cool for at least two minutes before removing the fuel cap Loosen the fuel cap slowly to release the pressure 2 Always fill the fuel tank outdoors in good v...

Page 9: ...the quick release fitting and slide onto the pump and let go of the collar Pull on the hose to ensure of a tight connection See Fig 11 Before connecting the hose to the water supply ensure that the filter screen is clean and remove any dirt or debris found Replace the filter if it is damaged See Fig 12 Connect to the supply Run water through the hose for 30 seconds to remove any dirt before connec...

Page 10: ...ressure washer including overhead Warning Running the petrol engine gives off carbon monoxide which is an odourless poisonous gas Breathing carbon monoxide can cause nausea fainting or death Seek medical advice immediately in the event of breathing any toxic fumes STARTUP PROCEDURE To start your pressure washer for the first time follow these instructions step by step This starting information als...

Page 11: ...ing the pressure washer be sure you are wearing the appropriate Personal Protection Equipment PPE for the job at hand Safety goggles should always be worn when using this pressure washer 12 When starting the engine position yourself as shown in Fig 18 Grip the starter handle and pull slowly until you feel some resistance Then pull rapidly to start the engine 13 Return the starter grip handle slowl...

Page 12: ...SPRAY NOZZLES Nozzle Size Guide 0º Nozzle Red This nozzle delivers a pinpoint stream of pressurised water and is extremely powerful It only covers a small cleaning area This nozzle should only be directed at surfaces that can withstand high pressure such as metal or concrete Do not use this nozzle to clean wood 15º Nozzle Yellow This nozzle delivers a powerful 15 degree spray pattern for intense c...

Page 13: ... 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 ADJUSTING SPRAY PRESSURE As well as adjusting the spray pressure using the various nozzles shipped with this equipment you can control the pressure on the washer itself by turning the pressure control knob Turn the knob clockwise to increas...

Page 14: ...After using chemicals soaps and detergents it is necessary to thoroughly clean the pressure washer Place the chemical hose in a container of clean water Turn on the pressure washer and hold the trigger on the spray gun top draw clean water through the system to clean it thoroughly MAINTENANCE To ensure efficient operation and longer life of your pressure washer a routine maintenance schedule shoul...

Page 15: ...armful 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 ...

Page 16: ...ir 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 Carburetors Only for paper core cleaners x Repeat task more often than scheduled...

Page 17: ...e 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 condition Storage Time Service...

Page 18: ...18 USER MANUAL v2 1 JEFWASPGRO65HP 6 5HP Gearbox Petrol Washer www jeffersontools com TROUBLESHOOTING ...

Page 19: ...19 USER MANUAL v2 1 JEFWASPGRO65HP 6 5HP Gearbox Petrol Washer www jeffersontools com ...

Page 20: ...rommet 5 21 Fix Nut 2 5 Nozzle Set 5 22 Engine Fixing Bolt 4 6 Decal 1 23 Spring Washer 4 7 Filter 1 24 Plain Washer 4 8 Chemical Inlet Hose 1m 25 Fix Nut 4 9 Pump Fixing Bolt 4 26 Spring Washer 4 10 Spring Washer 4 27 Axle Fix Nut 2 11 Pump Gear Reduction Assembly 1 28 Spring Washer 2 12 Engine 1 29 Plain Washer 2 13 Key 1 30 Axle 2 14 Thermal Protection Valve 1 31 Clip 2 15 Frame 1 32 Wheel 2 16...

Page 21: ...ip 26 Crankcase 45 Unloader Valve 64 Inlet Water Filter 8 O Ring 27 Ball Bearing 46 Valve Seat 65 O Ring 9 Vented Oil Plug 28 O Ring 47 O Ring 66 Valve Plug 10 O Ring 29 Gearbox Mounting Cover 48 O Ring 67 O Ring 11 Bolt 30 Bolt 49 Valve Housing 68 Check Valve Assembly 12 Crankshaft Cover 31 Oil Seal 50 O Ring 69 O Ring 13 O Ring 32 Retainer Ring 51 Outlet Banjo Bolt 70 Outlet Plug 14 Snap Ring 33...

Page 22: ... DIAGRAM Description Description 1 O Ring 14 Gasket 2 Mounting Cover 15 Sight Gauge 3 Bolt 16 Bolt 4 Washer 17 O Ring 5 O Ring 18 Venting Plug 6 Pump Gear 19 Blocking Flake 7 Set Screw 20 Engine Gear 8 Key 21 Bearing 9 Oil Drain Plug 22 Snap Ring 10 O Ring 23 Snap Ring 11 Case 24 Oil Seal 12 Bolt 13 Washer ...

Page 23: ...1 10 Hexagon Bolt With Flange 4 ENGINE CRANK CASE PARTS LIST DIAGRAM Description Qty 1 Crankcase Body 1 2 Oil Seal 1 3 Flat Washer 2 4 Sealing Plug Screw 2 5 Start Unit Oil 1 6 Bolt Flange 1 7 Oil Level Switch 1 8 Bolt Flange 2 9 Components Of Governor Gear 1 10 Bearing 1 11 Flat Washer 1 12 Pin Clip 1 13 Speed Regulating Arm 1 ENGINE CRANK CASE COVER PARTS LIST DIAGRAM Description Qty 1 Oil Rule ...

Page 24: ...T DIAGRAM Description Qty 1 Valve Lock Nut 2 2 Adjustable Nut Of Valve 2 3 Valve Rocker 2 4 Adjustable Bolt Of Valve 2 5 Plate Push Rod Guide 1 6 Push Rod 2 7 Lifter Valve 2 8 Valve Adjustment Cap 2 9 Retainer Valve Spring 2 10 Inner Spring Of Valve 2 11 Valve Oil Seal 1 12 Valve Kit 1 13 Camshaft Assy 1 14 Valve Rocker Combination 2 ENGINE CRANK CASE COVER PARTS LIST DIAGRAM Description Qty 1 Man...

Page 25: ... 1 4 Carburetor Gasket 1 5 Carburetor Gasket 1 ENGINE FLYWHEEL COIL ASSEMBLY PARTS LIST DIAGRAM Description Qty 1 Flywheel Comp 1 2 Coil Assy Ignition 1 3 Hexagon Bolt With Flange 2 4 Impeller 1 5 Starting Disc 1 6 Hexagon Nut With Flange 1 ENGINE CRANK CASE COVER PARTS LIST DIAGRAM Description Qty 1 Throttle Handle Combination 1 2 Speed Regulating Limit Spring 1 3 Cross Recessed Pan Head Screw 1 ...

Page 26: ...rt Plate Body Of Filter Element 1 7 Seal Ring 1 8 Air Filter Seat 1 9 Hexagon Nut With Flange 2 10 Support Plate Body Of Filter Element 1 ENGINE MUFFLER PARTS LIST DIAGRAM Description Qty 1 Muffler 1 2 Hexagon Nut 2 3 Outlet Gasket 1 ENGINE FUEL TANK PARTS LIST DIAGRAM Description Qty 1 Tank Cover 1 2 Pouring Orifice Filter Screen Combination 1 3 Hexagon Nut With Flange 2 4 Tank 1 5 Tank Oil Out 1...

Page 27: ...27 USER MANUAL v2 1 JEFWASPGRO65HP 6 5HP Gearbox Petrol Washer www jeffersontools com PRESSURE WASHING TIPS TECHNIQUES ...

Page 28: ...ended as it eliminates the need to provide proof of purchase should a warranty claim be necessary Warranty Repair Should Jefferson confirm the existence of any defect covered by this warranty the defect will be corrected by repair or replacement at an authorized Jefferson dealer or repair centre Packaging Freight Costs The customer is responsible for the packaging of the equipment and making it re...

Page 29: ...eed of repair and any repairs needed are covered by the warranty policy In order to qualify for warranty cover all equipment presented must have been used serviced and maintained as instructed in the user manual Where repair is not covered by the warranty a quotation for repair labour costs and return delivery will be sent to the customer normally within 7 working days NOTE If the repair quotation...

Page 30: ...e EU 2016 1628 as amended Non Road Mobile Machinery Directive Equipment Category Petrol Powered Washer Product Name Model JEFWASPGR065HP 6 5HP Gear Box Pressure Washer Guaranteed Sound Power Level 96dB The conformity assessment procedure followed was in accordance with Annex VI of the Outdoor Noise Directive EU type approval number e13 2016 1628 2017 656SRA1 P 0076 00 Signed by Stephen McIntyre Po...

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Page 32: ... 44 0 1244 646 048 Email sales jeffersontools com IMPORTANT SAFETY FIRST Before attempting to use this product please read all the safety precautions and operating instructions outlined in this manual to reduce the risk of fire electric shock or personal injury www jeffersontools com ...

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