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Westinghouse WPX3400 Instruction Manual
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Westinghouse WPX3400 Instruction Manual

Westinghouse WPX3400 Instruction Manual

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Summary of Contents for Westinghouse WPX3400

  • Page 3 Thank you for purchasing a Westinghouse portable pressure washer. It is a high-quality power product that will provide many years of safe and reliable service if properly operated and maintained. This manual contains important instructions for operating the pressure washer. For your safety and that of others, be sure to read this manual thoroughly before operating the pressure washer.
  • Page 4 Accessories and Components ........................5 Spray Gun Holder ............................7 Spray Lance Rest ............................7 Spray Nozzles and Cleaning Tool ........................ 7 Spray Gun and Lance ..........................7 Pressure Hose .............................. 8 Spray Nozzle ..............................8 Before Starting the Pressure Washer ......................11 Add Engine Oil ............................
  • Page 5 Clean the Fuel Strainer ..........................24 Fuel Sediment Cup ............................. 24 Drain the Fuel ............................. 25 Spark Arrestor ............................27 Water Inlet Screen ............................28 High Pressure Hose ........................... 28 Spray Gun ..............................29 Spray Nozzles ............................29 Detergent System ............................29 Water Pump ...............................
  • Page 6 Symbol Description The words DANGER, WARNING, CAUTION and Burn Hazard NOTICE are used throughout this manual to highlight important information. Be certain that the meanings of these alerts are known to all who work on or near the equipment. Burst / Pressure Hazard This safety alert symbol appears with most safety statements.
  • Page 7 Never use fuel as a cleaning agent. Never operate the pressure washer Store any fuel containers in a well- in an enclosed area. Engine ventilated area, away from any exhaust contains poisonous combustibles or source of ignition. carbon monoxide. Only operate the pressure washer outside and far away from windows, doors and vents.
  • Page 8 • Do not allow the high pressure Always wear safety goggles that hose to contact muffler or other comply with AS/NZS 1337 when hot surfaces. operating or in the vicinity of the • Always ensure that the spray gun, pressure washer. Hearing nozzles and hoses are correctly protection, closed shoes and long attached and in good working...
  • Page 9 The safety labels have specific positions and must be replaced if they are unreadable, damaged or missing. The Westinghouse WPX3400 pressure washer is intended for domestic use only by consumers in normal residential and recreational applications. It is not intended for commercial use by workers in business applications.
  • Page 10 Check the accessories and components against Always have assistance when those shown in Figure 2. If any items are missing, lifting the pressure washer. The please contact your Westinghouse Outdoor Power pressure washer is heavy; lifting it Equipment dealer. can cause bodily harm.
  • Page 11 Never lift the pressure washer without assistance. The pressure washer is heavy and lifting without assistance can result in personal injury. Never use the handle as a lifting point to support the entire weight of the pressure washer. Only use the handle to lift the pressure washer while simultaneously lifting it from underneath the chassis...
  • Page 12 Tools required – 4 mm hex key and 10 mm socket Insert the spray nozzles and the nozzle cleaning tool wrench. into their respective marked positions on the hose and nozzles holder as shown in Figure 7. Attach the spray gun holder to the handle using the supplied fasteners as shown in Figure 5.
  • Page 13 1. Check that the O-ring on each of the two pressure 1. Select the desired nozzle for the cleaning hose threaded couplings is intact and not damaged application. and then lubricate them both by moistening with 2. Apply the trigger lock on the spray gun by water or applying silicone lubricant.
  • Page 14 Figure 13 Main Pressure Washer Components...
  • Page 15 MAIN PRESSURE WASHER COMPONENTS Spray Gun: Controls the application of high 21. Choke Lever: Adjusts the fuel-air mixture pressure water or low pressure detergent and supplied to the engine for ease of cold starting. water mixture onto the surface being cleaned. 22.
  • Page 16 Using petrol-powered equipment indoors Filling the fuel tank while the can kill you in minutes. Engine exhaust pressure washer is running can contains carbon monoxide. This is a cause fuel to spill and come into poisonous gas you cannot see or smell. contact with hot surfaces that can ignite the fuel.
  • Page 17 Avoid prolonged skin contact with fuel. Avoid inhalation of fuel vapours. Use only biodegradable, non- flammable and non-toxic pressure With the pressure washer switched off and washer detergent added via the stationary on a horizontal surface, check the fuel detergent tank and not pre-mixed level in the tank visually by removing the fuel cap.
  • Page 18 4. Turn on the water supply and check that there are no leaks. 5. Squeeze the trigger on the spray gun to bleed out any entrapped air in the hoses, pressure Always wear safety goggles that pump and spray gun. Continue until there is a comply with AS/NZS 1337 when steady stream of water coming out from the operating or in the vicinity of the...
  • Page 19 Before starting the pressure washer, verify the following: • The pressure washer is properly assembled. The engine is full of the correct type of oil. • The fuel tank is full of the correct type of • unleaded petrol. • The detergent tank is full of the correct type of cleaning liquid, if required.
  • Page 20 Figure 21 Remove the Spray Nozzle performance and may void the warranty. For replacement nozzles, please contact your 3. Select the desired spray nozzle for the next Westinghouse Outdoor Power Equipment cleaning application. dealer. 4. Pull back the collar on the lance’s quick...
  • Page 21 Nozzle Spray Spray Pattern Colour Intensity Intense cleaning of embedded or stubborn dirt and grime from very hard surfaces such as concrete, bricks and pavers. Removal of bitumen, gum, oil stains, paint, rust, wax, etc. Cleaning of high or hard-to-reach surfaces High such as the second storey of a house when operating the pressure washer from...
  • Page 22 5. Allow the detergent to soak in for a few minutes, but do not let it dry to prevent staining or streaking of the surface. Damage may occur to the cleaning surface if the spray nozzle is held too close to it, After using detergent, refill the detergent tank especially when using the medium and high with clean water and spray it out using the...
  • Page 23 11. Engage the trigger lock on the spray gun and return it and the lance to their respective storage positions on the pressure washer. 12. While the pressure washer is switched off, pull the recoil starter handle five times to remove any remaining water from inside the water pump.
  • Page 24 Use only genuine Westinghouse spare parts crankcase and cause severe skin or others as specified herein. Non-genuine burns. Allow engine oil to cool for...
  • Page 25 * Whichever occurs first. ^ Service more frequently in dusty conditions. Table 2 lists the more complicated maintenance tasks that are best performed by a qualified mechanic using specialised tools. It is recommended to engage an authorised Westinghouse service dealer to do this work. Table 2...
  • Page 26 Use premium quality 4-stroke engine oil with an API Service Classification of at least SJ. An SAE multigrade viscosity of 5W-30 or 10W-30 is suitable for use in ambient temperatures of up to 40°C. For temperatures above 40°C, a multigrade viscosity of 10W-40 or 15W-40 is recommended.
  • Page 27 Figure 26 Add Engine Oil Figure 27 Remove the Oil Drain Plug 5. Continue to add oil until the oil is at the correct 6. Replace and tighten oil drain plug. level. (See Check Engine Oil). A simple visual 7. Fill crankcase with oil following the steps guide is to observe the oil level relative to the outlined in Add Engine Oil.
  • Page 28 4. Inspect both air filter elements and replace either if damaged. Tools required - None. 5. Clean the paper filter element by tapping it 1. Unscrew the wing nut holding the air filter several times on a hard surface to remove cover in place and remove the cover (see loose dirt and then blow compressed air Figure 28).
  • Page 29 5. Re-install the fuel strainer by hand inside the filler hole on top of the fuel tank. Make sure it is Follow the procedure above to clean the air filter fully inserted into the opening and that the two elements but replace them with new ones instead of notches in its rim align with the notches in the cleaning the old ones as described in Steps 7 to 9.
  • Page 30 9. After confirming there are no fuel leaks, turn the fuel valve to the OFF position. Occasionally it may be necessary to drain all of the fuel out of the pressure washer. For example, to remove contaminated or stale fuel or to prepare the pressure washer for transport or storage.
  • Page 31 Never dispose of fuel or fuel contaminants by dumping either of them into a sewer, on the ground, or into groundwater or waterways. Always be environmentally responsible. Follow the guidelines of the government agencies for proper disposal of hazardous materials. Consult local authorities or reclamation facility.
  • Page 32 1. Heat Shield 2. Bolt Figure 40 Remove the Muffler Heat Shield 2. Unscrew the two bolts affixing the spark arrester screen to the muffler and remove the screen. (See Figure 41). Figure 39 Spark Plug 13. Re-install the spark plug by following the steps outlined below: a.
  • Page 33 Use only a genuine 3. Point the spray gun in a safe direction and pull Westinghouse high pressure hose assembly the trigger to relieve any confined water replacement with a pressure rating equal to or pressure.
  • Page 34 5. Pull back the collar on the lance’s quick connect coupling to its limit and withdraw the 1. Stop the pressure washer if it has been installed spray nozzle by pulling it away from running. the lance as shown in Figure 21. Then release the locking collar.
  • Page 35 4. To clean the detergent tank, if required, pull off the detergent tube from the barbed fitting on the bottom of the tank as shown in Figure 44 and flush the tank clean with running water from a garden hose. 5.
  • Page 36 Never store a pressure washer with fuel in the tank indoors or in a poorly ventilated area where the fumes can come into contact with an ignition source such as: a pilot light of a stove, water heater, clothes dryer or any other gas appliance, or a spark from an electric appliance.
  • Page 37 Dismantling should only be carried out by a mechanically proficient person with access to proper tools or alternatively by your authorised Westinghouse service dealer for a fee. Before dismantling: 1. Stop the pressure washer. 2. Drain the engine oil.
  • Page 38 Spark arrestor is dirty or blocked. Check spark arrestor and clean if necessary. Pressure pump is faulty. Repair or replace water pump. If above possible causes are Take pressure washer to an authorised checked and eliminated, pressure Westinghouse service dealer. washer may be faulty.
  • Page 39 Repair or replace water pump. If above possible causes are Take pressure washer to an authorised checked and eliminated, pressure Westinghouse service dealer. washer may be faulty. A high pressure washing spray Replace with the black (60°) low-pressure nozzle is installed.
  • Page 40 200 kPa) compressed air whilst its trigger is squeezed. Replace spray gun if faulty. Pressure pump is faulty. Repair or replace water pump. If above possible causes are Take pressure washer to an authorised checked and eliminated, pressure Westinghouse service dealer. washer may be faulty.
  • Page 41 Replace thermal relief valve or water while engine is pump. running, and the spray gun trigger is open for If above possible causes are Take pressure washer to an authorised water spraying. checked and eliminated, pressure Westinghouse service dealer. washer may be faulty.
  • Page 42 PARAMETER WPX3400 Type 1-Cylinder, 4-Stroke, Overhead Valve, Air Cooled Displacement (cm 3 ) Speed (rpm) 3,600 Oil Capacity (mL) Oil Viscosity SAE 10W-30 Low Oil Shutdown Spark Plug Torch F7RTC Spark Plug Gap (mm) 0.60 - 0.80 Unleaded Petrol ‡ (91, 95 or 98 RON)
  • Page 44 The Company shall not be liable for any repairs, replacements, or adjustments to the Goods or any costs of labour performed by the Consumer or Westinghouse Outdoor Power Equipment (the others without the Company’s prior written approval. “Company”) warrants that its domestic portable pressure washers (the “Goods”) shall be free from...
  • Page 48 © 2024 All rights reserved. Content may change without notice. and Westinghouse are trademarks of Westinghouse Electric Corporation used under license by Westinghouse Outdoor Power Equipment.