New Valve Installation Tutorial - AAA Pressure Washer Pump Repair

If you are dealing with low pressure in your pressure washer unit, the valves would be one of the first things to check (after you inspect the check ball and unloader).

Valves can become damaged if the manifold overheats or over pressurizes, which could crush the valves and cause them to need replacing.

In this video, we show how to remove and install the check valves in a 90034 AAA triplex pressure washer pump.

Valve Kit: https://www.allpartsinc.com/valve-kit...

Tools Needed:
10 mm T-Bar
Reverse Plyers
Needle Nose Plyers
Locktite 243
Lithium Based Grease
Torque Wrench

Chapters:
00:08 How To Remove The Valves From A Triplex Pump
04:35 How To Install New Pressure Washer Pump Valves

If you have low pressure and want to inspect the check ball and unloader first, we have a video that shows how to do so here:    • Inspecting A Check Ball In A Pressure Wash...  

#pressurewasher #homeimprovement #repairing

Disclaimer:
Allparts Equipment & Accessories Inc produces videos for educational and informational purposes only. The information provided in this video does not replace professional advice or service. Repeating the work shown in these videos is done at the viewer's own risk. Allparts Equipment & Accessories Inc is not responsible for any damages incurred to the viewer's property (including their home and/or equipment) or health. We strongly recommend hiring a qualified professional when working on your home and/or equipment. It is the viewer's responsibility to follow proper safety protocols when working on their property and to ensure their work complies with all applicable local building codes and regulations. Performing maintenance on machinery, heating systems, and other home equipment is dangerous and should be completed by a qualified professional. Always consult the manufacturer's instruction manual before operating or servicing any equipment. © 2025 Allparts Equipment & Accessories Inc. All rights reserved.