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SP2022 Hammer Reset Spring - Help

This is a discussion on SP2022 Hammer Reset Spring - Help within the SIG Sauer Pistols forums, part of the SIG Sauer Forum category; Searched high and low for a Sig SP2022 hammer frame disassembly vids (besides the sig armorer dvd) or pics to figure this out, but can't ...

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Old 07-10-2012, 09:30 PM   #1
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SP2022 Hammer Reset Spring - Help

Searched high and low for a Sig SP2022 hammer frame disassembly vids (besides the sig armorer dvd) or pics to figure this out, but can't find any detailed docs on how to put that dang hammer reset spring back in.

Does anyone have a real picture of how the hammer reset spring is oriented on the hammer? I looked up various diagrams of the spring (#28 in the diagram below) and hammer but it's hard to make out exactly how it's oriented.

Hammer Reset Spring

I tried putting it in various ways, small end against hammer, long bent end against hammer, bent end against top edge/bottom edge/middle, etc., but after a few tries I got it so the pistol becomes a single action after the first double action pull - The trigger fires once in double action and then the trigger bar just doesn't catch the base of the hammer unless I pull back the hammer a bit, then it clicks in place. I can tell that the hammer, at rest, is too close to the firing pin. It doesn't set back like it used to. But manually pulling back on the hammer ever so slightly, it clicks in place.

I could have the sear spring connected wrong too, so a pic of that would be helpful just for verification. The long end does have tension on the sear, but the short end of the spring that is tensioned on an edge of the hammer assembly frame just doesn't seem secure.

I know I should've taken notes or pictures as I was disassembling it, but it looked so simple and straight forward... until springs started flying off and it wasn't clear anymore how it actually fit on.

Any help would be appreciated! I'm probably missing something obvious!

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Old 07-14-2012, 10:06 PM   #2
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Lightbulb Fixed!

Ok- Since no one seems to have fully stripped their hammer assembly, I wanted to post a follow up to my issue in case someone else runs into the same problem. I should've taken pictures, but a friend I and were doing some pain in the *** trial and error before we got it to work, that to take it apart again would just be insane. So I'm going to try to explain it best I could below.

The main issue was that I wasn't getting the correct tension on the hammer to keep it off the firing pin at rest. The hammer reset spring (#28 in the diagram) has a little leg that sticks out. You place the spring in the hammer with the short end of the spring against the hammer and the long end with the leg sticking out and just touching the base of the hammer.

What I was doing wrong- I was assembling the components and had the leg of the hammer spring under the drive lever (#27). It seems to go in naturally that way and the hammer feels like there's tension on it. But the tension is only forward toward the firing pin. There is no tension pushing it away.

The fix: That leg on the #28 spring has to be Above the #27 drive lever; basically resting on top. That then puts tension on the spring and pushes the hammer back. Seems obvious now, doesn't it.

The pain in the *** part was to set that spring on top. It's not easy and took 4 hands to do it with lots of trial and error. The one tool I highly recommend having is a thin tool with a hooked end- like a dental scraper.

Assemble the drive lever (#27) to the hammer strut first. Then assemble the hammer, hammer reset spring, and safety lever (#30) together. Push in the hammer just far enough so you still have room to be able to hook the hammer spring leg. Pull the hammer spring leg up, push the hammer in until the drive lever (#27) engages with the hammer slot. Quickly put in the hammer pivot pin before the spring pops out of it's socket. And the spring WILL pop out many times before you get it centered correctly. If anyone knows of an easier way to do this, please share!

The rest of the assembly is straight forward. In regards to my other question about the sear spring, I verified it is correctly set from a nice picture of it from a Sig Sauer color catalog.

Someday when I do a full detailed dis-assembly of this thing again, I'll take a vid or pictures of ALL components and the re-assembly. Maybe someone will find it useful.

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Old 07-14-2012, 10:19 PM   #3
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Glad you got it fixed. You have more guts than I do to take it apart like that. I think I will let a smith do that for me if it needs it.
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