General Boards > Technical Support

Air Compressor

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Steven Harper:
OK, I don't mean to be stupid but am I reading from the replies that my engine and generator need to be running when using the air compressor?

Richard And Babs Ames:
Just the chassis engine for the service air compressor. You run the generator if you want to use an electric air compressor and need power to it.

Joel Ashley:
The compressor you refer to in the generator compartment is only a small auxilliary one, used to help keep the air leveling system functional if you auto-leveled your coach and have been parked for awhile;  it kicks in to maintain level if the main air tanks get below a useful pressure, which commonly happens due to leakage over time.  The main compressor is on the engine and pressurizes the tanks with dried air when the engine runs.

Unless something has changed since we bought our coach, the chuck connector you see in the generator compartment is from your tanks, not the auxilliary compressor, and as Richard and Leah have indicated, you will need to run your engine, probably at fast idle, in order to get satisfactory use from that port.

-Joel  

Randy Perry:
When you say "Fast Idle" I assume you mean raising the engine RPM (to around 1200) and set the cruse control? Cuz thats what I do??

Joel Ashley:
I don't know about your reference to the cruise control.  Our coach has, as many do, a fast idle switch among those on the driver's control panel.  In this case it is used to increase engine RPM so the engine air compressor can put air into the tanks as fast as you're taking it out to inflate something.  It also helps to more quickly pressurize depleted tanks when you first start a cold engine, or whenever the tanks have very low pressure.

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