Regular maintenance of your Dewalt pressure washer is essential to keep it running smoothly and efficiently. One important task that you should perform regularly is changing the pump oil. Pump oil lubricates the internal components of the pump and helps to prevent damage and excessive wear. In this article, we will guide you through the steps to change the pump oil in your Dewalt pressure washer.

Before you begin, make sure you have the necessary tools and materials. You will need a wrench or socket set, a funnel, and the recommended pump oil for your Dewalt pressure washer model. It’s important to use the correct type and amount of pump oil specified in your pressure washer’s manual.

Start by locating the oil fill cap on the pump. It is usually labeled and can be found on top of the pump housing. Use the wrench or socket set to loosen and remove the cap. Set it aside in a safe place where it won’t get dirty or lost.

Next, position your pressure washer so that the oil drain plug is facing downwards. This will allow the old oil to drain out easily. Place a container or oil pan beneath the drain plug to catch the oil. Use the wrench or socket set to loosen and remove the drain plug. Be careful as the oil may still be hot. Allow the oil to drain completely.

Once the old oil has drained out, reinstall the drain plug and tighten it securely. Take the new pump oil and use the funnel to pour it into the oil fill cap opening. Refer to your pressure washer’s manual for the proper amount of oil to add. Avoid overfilling, as this can cause damage to the pump.

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After you have added the new oil, screw the oil fill cap back on and tighten it. Wipe away any excess oil that may have spilled. Your Dewalt pressure washer is now ready to use with fresh pump oil, ensuring optimal performance and longevity.

Remember to also check the pump oil level regularly and change it as recommended by the manufacturer. By following these simple steps, you can keep your Dewalt pressure washer in top condition and enjoy efficient cleaning for years to come.

Step 1: Gather the necessary tools and materials

Before you start changing the pump oil in your Dewalt pressure washer, it’s important to gather all the necessary tools and materials. This will ensure that you have everything you need and can complete the task without any interruptions or delays.

Here’s what you’ll need:

  1. Oil Drain Pan: This is where you’ll collect the old pump oil as you drain it from the pressure washer.
  2. Clean Rags: You’ll need these to clean any spills or messes that occur during the oil changing process.
  3. Socket Wrench: This tool will be required to remove the pump oil plug.
  4. Replacement Pump Oil: Check the owner’s manual of your Dewalt pressure washer to determine the type and amount of oil needed. Make sure you purchase the correct oil for your model.
  5. Funnel: This will help you pour the new pump oil into the pressure washer without spilling.
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Once you have gathered all the necessary tools and materials, you can move on to the next steps of changing the pump oil in your Dewalt pressure washer.

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Step 2: Prepare the pressure washer

Before proceeding with changing the pump oil in your Dewalt pressure washer, it is important to properly prepare the machine. Follow these steps to ensure you have everything ready:

1. Gather the necessary tools and materials

Make sure you have all the required tools and materials within reach. You will need:

  • Protective gloves and safety goggles
  • A drain pan
  • A wrench or socket set
  • A funnel
  • Clean cloth or rag
  • New pump oil specific to your Dewalt pressure washer model

2. Safety first

Always prioritize safety when working with a pressure washer. Put on your protective gloves and safety goggles to prevent any accidents or injuries.

3. Turn off the pressure washer

Make sure the pressure washer is completely turned off and disconnected from any power source before proceeding. This will prevent accidental startup and potential damage or injury.

4. Release pressure from the system

Before changing the pump oil, you need to release the pressure from the system. Engage the trigger lock to ensure the pressure washer is not accidentally activated. Then, squeeze the trigger to release any remaining pressure in the spray gun and hose.

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5. Position the pressure washer

Place the pressure washer on a flat and stable surface. This will ensure stability and safety while you are working on it. Ensure there is adequate ventilation in the area to prevent any fume buildup.

By following these steps, you will properly prepare your Dewalt pressure washer for the pump oil change process. This will help ensure a smooth and hassle-free oil change procedure.

Step 3: Locate the oil drain plug

Once you have positioned your pressure washer in a well-ventilated area and have turned off the engine, it’s time to locate the oil drain plug.

The oil drain plug is typically located at the bottom of the pump, near the base. It is a small bolt-like piece that is used to drain the old oil from the pump. The location of the oil drain plug may vary depending on the model of your Dewalt pressure washer, so refer to the user manual for specific instructions.

Some pressure washers may have a plastic cover or shield that needs to be removed to access the oil drain plug. If this is the case, carefully remove the cover or shield by unscrewing any screws or bolts that are holding it in place.

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Once you have located the oil drain plug, ensure that you have a container or bucket ready to catch the old oil. Place the container directly beneath the oil drain plug to minimize any spills or mess.

Before loosening the oil drain plug, ensure that you have a proper wrench or socket that fits the size of the plug. Using the wrong tool may damage the plug and make it more difficult to remove.

Caution:

Make sure that the pressure washer has cooled down completely before attempting to remove the oil drain plug. The oil can be extremely hot and may cause burns if not handled with care.

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Tips:
1. Refer to the user manual for detailed instructions on locating and removing the oil drain plug for your specific model of Dewalt pressure washer.
2. Wear gloves and protective eyewear while working with the oil drain plug to prevent any injuries.
3. Consider using a drain pan with a spout to easily pour the old oil into a waste container for proper disposal.

Step 4: Drain the old pump oil

Before starting the process of draining the pump oil, make sure that the pressure washer is turned off and the engine is cool. Drain the oil in a well-ventilated area to avoid any fumes or spills.

  1. Locate the oil drain plug on the bottom of the pump. It is usually a small bolt or cap.
  2. Place a drain pan or container underneath the oil drain plug to catch the oil.
  3. Remove the oil drain plug using a wrench or socket set.
  4. Allow the oil to fully drain into the pan. This may take a few minutes.
  5. Inspect the oil for any signs of contamination or metal particles. If the oil appears dirty or contains debris, it is recommended to replace the pump.
  6. Once the oil has completely drained, replace the oil drain plug and tighten it securely.
  7. Dispose of the used oil properly. Check with your local recycling center or auto parts store for guidance on how to dispose of used oil.

By following these steps, you can ensure that the old pump oil is safely drained and ready to be replaced with fresh oil for optimal performance of your Dewalt pressure washer.

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Step 5: Refill with new pump oil

After draining the old pump oil, it’s time to refill the pump with new oil. Here’s how to do it:

  1. Refer to your pressure washer’s manual to determine the appropriate type and amount of oil to use. Different models may require different types and quantities of oil.
  2. Locate the oil fill cap on the pump. This is usually a small cap with a dipstick attached to it.
  3. Check the oil level in the pump by removing the oil fill cap and wiping the dipstick clean. Insert the dipstick back into the oil fill hole without screwing it in and then remove it again to check the oil level. If the oil level is low, proceed to the next step.
  4. Slowly pour the recommended amount of new pump oil into the oil fill hole. Use a funnel if needed to avoid spills. Be careful not to overfill the pump.
  5. After adding the oil, reinsert the dipstick and tighten the oil fill cap securely.
  6. Wipe off any excess oil from the pump and surrounding areas to prevent dirt and debris from sticking.

Once you have refilled the pump with new oil, you are ready to use your pressure washer again. Remember to regularly check the oil level and replace the oil as needed to ensure optimal performance of your pressure washer.

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Step 6: Test the pressure washer

Once you have finished replacing the pump oil in your Dewalt pressure washer, it’s important to test the machine to ensure everything is working correctly. Follow these steps to test the pressure washer:

1. Connect the necessary hoses and attachments

Make sure the water supply hose is securely connected to the pressure washer inlet and that the high-pressure hose is attached to the pump outlet. If you were using any other attachments, such as a spray gun or nozzle, attach them as well.

2. Turn on the water supply

Before starting the engine, turn on the water supply to allow water to flow through the system. Open the valve or faucet fully to ensure maximum water flow.

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3. Start the engine

Locate the engine switch or pull cord and start the engine according to the manufacturer’s instructions. Allow the engine to warm up for a few minutes before proceeding.

4. Test the pressure

Squeeze the trigger on the spray gun to release water. The pressure washer should produce a steady and strong stream of water. Check if the pressure is consistent and if there are any leaks or unusual sounds. You can test different attachments, such as nozzles or surface cleaners, to ensure they are functioning properly.

5. Shut off the engine

Once you have finished testing the pressure washer, shut off the engine following the manufacturer’s instructions. Allow the machine to cool down before storing or performing any additional maintenance.

By testing your Dewalt pressure washer after changing the pump oil, you can ensure its proper functioning and identify any potential issues or leaks. Regular testing and maintenance can help extend the lifespan of your pressure washer and keep it in good working condition.

Questions and answers

What kind of oil should I use for my Dewalt pressure washer?

You should use a pump oil that is specifically made for pressure washers. Dewalt recommends using a non-detergent SAE 30 weight oil.

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How often should I change the pump oil in my Dewalt pressure washer?

Dewalt recommends changing the pump oil after every 50 hours of use or at least once a year.

Can I use any kind of oil to change the pump oil in my Dewalt pressure washer?

No, you should only use a pump oil that is specifically made for pressure washers. Using a different type of oil can cause damage to the pump.

What is the process for changing the pump oil in a Dewalt pressure washer?

To change the pump oil, you will need to locate the oil fill cap or dipstick on the pump. Remove the cap or dipstick and drain the old oil into a suitable container. Once the old oil is drained, replace the cap or dipstick and fill the pump with the recommended amount of new oil.

Why is it important to change the pump oil in my Dewalt pressure washer?

Changing the pump oil regularly helps to ensure that the pump is properly lubricated and functioning at its best. It can also help to prevent damage and extend the life of the pressure washer.