Near Intersection of I-35 & I-90 Southern Mn. | I bought an older Quad STX 450 on auction. It has one on it. I thought I was told it was an option. First time I decided to change it I found that there was no element in it. Apparently a previous owner had it plug and just threw the square filter element away. I replaced it along with the large can type on the engine and also the inline device.
Somewhere I got some instructions on draining it occasionally. Essentially shut off the engine. Shut off the fuel from the tank, open the bleeder on top, open the valve on the bottom and let it drain. When finished, shut the drain on the bottom, open the fuel from the tank and allow the fuel to push air back out the breather. When all the air has been pushed out the breather tighten it down and go. There does need to be enough fuel in the tank to be above the device otherwise gravity won't push new fuel in to displace the air.
I don't know if it would be worth it to add to an older tractor or not. We try to keep our fuel clean and don't use any fuel trailers.
Edited by tedbear 12/30/2020 10:39
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Why is this on some tractors? - pic
