will the unloader have the pressure preset?

 

ZWD4040 Comet Pump Triplex 4 GPM 4000 PSI - includes an unloader, thermal relief valve, quick connect, chemical injector siphon hose, and garden hose inlet with stainless steel filter - 1 inch hollow shaft and universal fits Honda, Kohler and Lifan engines.

Question; When I receive my pump will the unloader have the pressure preset?

• The unloader is not set exactly. 
• The factory uses a default setting that is close to the performance of the 4000psi pump.

• It is not a dependable default setting. 
• Please always check the oil level and start the unloader in the counter-clockwise setting until you can test the system. 

• You can increase the pressure by manually turning the adjustment knob clockwise until you reach the desired load on the engine. 
• Do not exceed 4200psi. 

PDF VTR3 Unloader Click Here

Call us: 800.333.9274

Espanol: 800.917.9274

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The unloader is on backwards which caused the failure.

• Unloader is backwards which caused the failure, This also poses a risk to the operator.

• There is no bypass 

Caution when installing a regulator, if not installed correctly it can cause valve covers to explode and damage the valves.

Phone: 800.333.9274

Español: 800.917.9274

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Water cavitation on a pressure washer

 Water cavitation on a pressure washer is the process of gas bubbles forming and collapsing inside the pump, which can damage the pump and cause premature failure. 

Cavitation occurs when the pump's inlet doesn't supply enough fluid to match the amount being discharged from the outlet. This can happen when the net positive suction head (NPSHR) needed by the pump isn't available. The NPSHA is the minimum pressure required at the suction port to prevent the liquid from boiling or evaporating. 

To prevent cavitation, you can: 

• Ensure the pressure applied at the suction port is greater than the liquid's vapor pressure 
• Match the pump specifications to the fluid and system requirements

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