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If your problem with your pressure washer pump is in the head of the unit, then save yourself some money and time by following The ROP Shop's Rugged U installation instructions for replacing out your Annovi Reverberi pump head. Since you’ll likely be making this repair with the pump still attached to the pressure washer, ensure that if you’re planning to lay your pressure washer down, the engine is positioned in a way that oil will not leak into your pistons or carburetor. If your problem with your pressure washer pump is in the head of the unit, then save yourself some money and time by following The ROP Shop's Rugged U installation instructions for replacing out your Annovi Reverberi pump head. Since you’ll likely be making this repair with the pump still attached to the pressure washer, ensure that if you’re planning to lay your pressure washer down, the engine is positioned in a way that oil will not leak into your pistons or carburetor.
How-To Installation Product & Troubleshooting Problems Pressure Power Washer and Pump Maintenance
August 3, 2021

HOW TO REPLACE THE HEAD ON YOUR PRESSURE WASHER PUMP FOR ANNOVI REVERBERI PRESSURE WASHER PUMP BRAND

If your problem with your pressure washer pump is in the head of the unit, then save yourself some money and time by following The ROP Shop's Rugged U installation instructions for replacing out your Annovi Reverberi pump head. Since you’ll likely be making this repair with the pump still attached to the pressure washer, ensure that if you’re planning to lay your pressure washer down, the engine is positioned in a way that oil will not leak into your pistons or carburetor.

STEP 1: COLLECT THE NEEDED TOOLS

  • Allen Wrench
  • Flathead Screwdriver

STEP 2: Using the Allen wrench, loosen the bolts on top of the pump. It may take a bit of rugged strength since they’re set using Loctite.

Replacing your Annovi Reverberi pressure washer pump head can be quick and easy. Replacing your Annovi Reverberi pressure washer pump head can be quick and easy.

STEP 3: Lightly rock the head back and forth to remove the head from the body.

STEP 4: Remove all bushings and water seals from the pistons. The bushings can be used on the new head if they are not damaged. You can also order new bushings for your pressure washer pump. The pump head comes with new water seals, but we also sell new water seals for your pressure washer pump head.

STEP 5: Install the old bushings into the new head with the grooves facing away from the head or down towards the pump. Installing these incorrectly can result in damage to the seals.

PRESSURE WASHER PUMP HEADS

STEP 6: Slide the new head down onto the pistons until the head is flush with the body.

STEP 7: Apply Loctite to the bolts to prevent them from coming loose from vibration. You can use red or blue, depending on if you think you’ll ever need to remove them again in the future.

STEP 8: Hand-tighten the bolts first. Then use the Allen wrench to finish tightening them down to 221"-lbs or 18.4'-lbs of torque. Be careful to not over-tighten them, which could break the heads off of the bolts or strip the aluminum threads inside the pump wall.

With your head replacement now complete, it’s time to test it out. Make sure you only test the unit with water running through the system.

Pressure Washer Pump Head SKUs - 100256, 100257, 100258, 800005

Replacement Water Seals SKU - 100247

Replacement Bushings SKU - 100241

Replacement O-Rings SKUs - 100231, 100238, 100254

Associated Models - AR43061, AR2940, AR43361, AR2840561, AR2190, AR2237, AR42701, AR42122

RUGGED U:
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START TROUBLESHOOTING HERE.
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