ARE TWO BETTER THAN ONE?

Dennis, you should revert back to the factory design, with the foam filter in the gold tower, that is meant to catch the bulk of the moisture and any type oils. The moisture that is caught drips down and flows towards the auto purge canister and gets blown out during a purge. The aluminum block that your fill whip is attached to is the last line of defense against moisture, and that has the desiccant beads inside, as shown in my pic. When the time comes that you’re feeling moisture on your finger tips during a bleed, those beads are done doing their job, and it’s time to replace. I just did mine about 4 months ago, and posted up a whole how to write up on servicing the oil, coolant, and filtration systems on my Lightning. If you do a search you’ll see it.

I had to call Hatsan to find out which desiccant media is the best, cause the wrong kind can cause a chemical reaction to the aluminum when activated by moisture. They highly recommended Activated Alumina, which I sourced thru Amazon. 

The tampon type filter does a great job in itself, and if it were me, I’d rather change out a small amount of desiccant that so easy to get to in that aluminum block. On the gold filter my goal was to not remove it from its mount point, cause that would also mean removing two more air lines. Less lines disturbed, less chances for a leak.

the 3 holes you see at the bottom of the gold tower at midpoint of the tower, are the drain holes for moisture to collect and work towards the purge system

Heres a few more pics from that maintenance tread of mine-

you can see how easy easy it is to access the desiccant beads out of the aluminum block. A filter screen holds all the beads in side the inner case tube, so when refilling with new beads take note of the height amount at the top of the bead fill, to allow room for the filter screen to thread back into.

the baffle with the three holes in my hand, is the “drain pan” that the tampon filter stops on when you insert a new one in. You can buy those filters in like 10” long lengths thru Amazon or Allie express, and I used the one that came in the Lightning kit as my guide to cut down the long ones to. Anyway, the O ring that is on that round drain pan, is NOT in the Lightning’s kit of o rings for some reason, so do not discard this o ring. It was probably never meant to be removed, but I popped mine out so I could take a tube brush to scrub clean the gold filter tower all the way to the bottom.

Excellent information and well photographed.

Excellent information and well photographed.



Thanks, Boss! Just trying to help a fellow lightning owner with my findings

Click to expand...

Heres another tip- the o ring that comes in the Lightning’s kit of maintenance items to fit under the aluminum blocks cap/dessicant housing is too thick a section. Mine had a slight tear in it, and upon further inspection with the one from the kit it’s too thick to fit inside the machined “step in” inside the block. 

So I found the right sized O ring in my red metric assortment box that I picked up from the local NAPA and used that. Fit perfect, no leaks, no tears. As a reminder I labeled the correct size on the block. Hopefully this assists others

Thanks for sharing guys. I found that the green O-rings in the gold filter are about as soft as bubble gun and kept blowing out. I found the correct size in 70duro and haven't had one leak yet.

jk