Changing the Filter on Racor 500FG

[KindOfBlue]

I can't find any information on the procedure used to change the filter on this model. I used to have the smaller model Racor that had the oil filter style scew on filter and the thumb wheel primer on the top. I know how to work this one, but the 500FG looks much different.

This one has a large metal T handle looking thing on the top. What is this for? Is this a prime pump, is there an integrated primer pump on this model?

Does the bowl unscrew from the bottom, the filter drop out the new filter pushed up and then the bowl screwed back on? OR

Does the top come off, the filter pulled out from the top and the new filter droped down into the unit?

Is there a bleed nut on this model?

I am sure that I can figure out how to get it unassembled by just trying things, but I would rather have some up front knowledge so I don't make too much of a mess.

[Sapperwhite]

The T handle secures the lid onto the filter housing. Turn right to tighten it, left to loosen. Once you unscrew the T handle, take the lid off and the filter will be sitting there. The filter has a handle built in for easy removal.

Depending on if you have a newer or older model, you may have to use a rubber spacer that comes with the replacement filter. The instructions tell you how to know if you need the spacer or not.

The bowl does not unscrew from the rest of the filter. It sets in a recessed lip that is part of the filter mount. Check this diagram out (depending on how old yours is, you may or may not have item #10 in this diagram older ones do not)

[brak]

I just replaced my filter in the same Racor model yesterday.
It is as easy as it gets.
1) Using the T-handle on top unscrew the cap
2) Using plastic handles on the filter body (they lift from it's top on older models or just around the sides on newer ones) lift it (you may need to turn it counter-clockwise as you lift). Filter sits on the tube that goes through its center vertically.
3) Install new filter just the same (on the tube, while rotating).
4) Optionally replace the gasket that sits inside the grove of the filter cover (they supply this gasket with each replacement filter but they seem to last a lot longer than filters for me).
5) To avoid re-priming your engine, have some clean diesel available and refill the filter to the top before replacing the cover. My engine just starts right up after that, may be coughs a bit for the first few seconds and that's it - no priming needed.

You can also drain the separated water and all sorts of gunk from filter bottom by opening the plug on the bottom some - don't forget to have a pan or another container underneath.

If your fuel is dirty like mine, there will be a lot of "coffe grind" coming out but some of the sediment stays inside the filter bowl. I haven't found a good way to get it out of there (flushing with diesel does not help) - would welcome ideas