Umarex Umarex Hammer surgery
- Thread starter far_shot
- Start date
@SLICKNICK in the Belleville pair in the center of the piston, is that a shim placed between the bellvilles?
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I’d like to give a shout out to Molly’s Lead Shed. My most accurate slugs were Boat tails from ProSlugs that closed that business. Mollys Lead Shed purchased equipment and should have the available shortly
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@SLICKNICK I’m trying to understand here, but I’m still missing something. You said that the shims go “against the reg.” I don’t know what that means. Where exactly are the shims placed? If you could draw an arrow on a photo pointing to the location of shim placement it would be extremely helpful to me.
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1.5mm ball head Allen key to remove shroud. It has to be fairly long. If you want to do everything needed in about 5-10 min
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Just so you know as a general rule Umarex will not sell parts for PCP rifles. They make you send the rifle to them.
They suck invthat regard.
They suck invthat regard.
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I’ve had ninja regs for other guns and uses. They’re all very similar depending on output psi reg
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If you want to use you’re own reg and find a bottle that’s 49mm in diameter like : 
And a reg like https://hajimotoproductions.com/index.php/product/ninja-high-pressure-metric-m18-custom-output/ and you can have. Larger bottle with no shims. Shoots a bit slower than stock, but you get 4 shots
And a reg like https://hajimotoproductions.com/index.php/product/ninja-high-pressure-metric-m18-custom-output/ and you can have. Larger bottle with no shims. Shoots a bit slower than stock, but you get 4 shots
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Always have to degas gun to work on anything. I mean 1000000% sure both tanks are empty before attempting anything. I have 2 hammer a stock and a boosted one. I had bought a friend’s that leaked and had it swapped at UX. They provided great service by the way. And one I purchased at Amazon. When I purchased mine. Day one it leaked at plenum. I had a new one from UX. So I disassembled mine and found front piston seal. Replaced seal, boosted reg. And I’m at about 1500 rounds of a leak free hammer. Stock UX hammer leaking again, and not the boosted one. Go figure lol (I Also made sure gauge was facing me so it was easier to tether at range
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Break down of how reg is on the hammer, without the spring , bb, a different piston looking piece
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The pressure in that bottle is determined by the pressure in the front regulator. The air in the plenum (bottle in picture) is then dumped by the hammer striking valve and releasing pressurized air in plenum
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