Tip & How-To about Garden
Removing the pump from a pressure washer can be easy, or it can be extremely hard. The first thing is knowing what you are going to remove and what you are not. Whether on an electric motor or a gas engine( the power source), a pressure washer pump consists of three parts; The manifold( the brass or aluminum part the water comes out of), the transmission( the oil side of the pump) and the flange( where it bolts to the motor or engine).
When removing the pump to replace it, you need to remove it at the flange. Normally after you take the three or four bolts mounting the flange to the power source, the pump will slide right off. Sometimes however, years of sitting out in the weather makes the pump stick on. There also might be a set screw holding the hollow shaft on to the shaft from the power source.
Make sure any set screws are loosened and try to pry the pump off by sticking a screwdriver between the power source and the pump and gently prying. If that doesn’t work try sticking the bolts back in the flange but very loose and starting the power source. The vibration from the motor or engine will break the pump loose most of the time. After that, if the pump is still firmly attached, you may need to either knock it off with a hammer (this will most likely damage the pump beyond repair) or use a torch and cut it off (this will damage the pump beyond repair and there is a chance you will damage the oil seal on the power source). If worse comes to worse you can take it to a qualified service center and have them remove the pump for you.
Posted by Bill... on
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