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All Springer/NP/PCP Air Gun Discussion General > China/Asian AirGun Gate

Picked Up A Seneca Aspen Cheap

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Ronno6:

--- Quote from: longhunter on September 30, 2023, 03:42:37 PM ---If you're starting from empty, it'll take FOREVER  to build pressure.
To disassemble the pressure tube, remove the manometer, underneath you'll find a little flat bar. Remove it, under that is a pin. Push the pressure tube back to release the tension on that pin. Pull the pin with a small magnet. You can now slide the pressure tube out, without any further disassembly of the gun.
Be careful when you remove the tube. The poppet is directly behind it, will come flying out, if you're not careful.

--- End quote ---

Thank you, sir!
Any idea on the size of the O-ring I'll need??

Is the poppet "behind" the tube towards the rear of the rifle?
Should I disassemble with rifle standing on its butt plate?

longhunter:
I have no idea of the proper size. It's a square seal. I used two thin orings,  liquid electrical tape to make up the difference.
Yes, the poppet is behind the tube. Just pull the tube out slowly. You'll be fine.  ;D

Ronno6:
Simple enough to disassemble. Thanks, Mr. Scott...
The sealing O-ring is a 14mm OD X 10mm ID
That's one I don't have, but McMaster does......
I'll receive them tomorrow.

The original O-ring just crumbled to pieces....way worst than a Hatsan Vortex rod O-ring !
Kinda makes me wonder about all the rest of the O-rings in the rifle......

longhunter:
Glad I could help.
I had no idea what size oring that took. Mine came out in a slimy green snotball.

Ronno6:

--- Quote from: longhunter on October 12, 2023, 11:59:59 AM ---Glad I could help.
I had no idea what size oring that took. Mine came out in a slimy green snotball.

--- End quote ---

Mine just crumbled......
Size for each O-ring os specified on the parts list.

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