[ARCHIVED THREAD] - Anderson LPK Spring problem?

Posted: 6/29/2017 6:07:45 PM EDT

I just installed a Anderson LPK and I am having problems with light primer strikes. It feels like (hard to tell) the hammer spring is weak. Has anyone every had a problem with this? Also the trigger pin kept creeping out. This is around the 20th lower I've put together and I've never had any problems till today. Everything looks in place and installed right.

Posted: 6/29/2017 6:16:15 PM EDT

[#1]

Your hammer spring is probably installed backwards. A backwards hammer spring will cause both issues you mentioned.

Also note the hammer spring legs should rest above the trigger pin.

Posted: 6/29/2017 6:18:27 PM EDT

[#2]

Never had an issue with any stock spring. Have used a couple Anderson LPKs, too. Maybe you have the one in a thousand bad spring? The hammer fit into the lower fine, right?

Posted: 6/29/2017 6:29:32 PM EDT

[#3]

I would bet dollars to donuts, the spring is backwards.

Posted: 6/29/2017 6:41:11 PM EDT

[#4]

Well I looked at the lower and sure enough the hammer spring is on backwards , then I looked at my post here and you guys are right. I guess I shouldn't of been drinking Patron silver when I installed the hammer spring lol. Thanks everyone.

Posted: 6/29/2017 7:04:00 PM EDT

[#5]

Quote History

Quoted:
Well I looked at the lower and sure enough the hammer spring is on backwards , then I looked at my post here and you guys are right. I guess I shouldn't of been drinking Patron silver when I installed the hammer spring lol. Thanks everyone.

View Quote

On about my 10th build I did the same thing. Wasn't paying attention when I put it in.

Makes for a GREAT trigger pull until you try and light off some hard primers.

Posted: 6/29/2017 7:13:21 PM EDT

[#6]

I'd consider some anti-walk pins just to be safe..

Posted: 6/29/2017 7:17:23 PM EDT

[#7]

I was thinking about about the anti walk pins or whatever they call them. I have never messed with them before.. I have no clue what to buy.

Posted: 6/30/2017 8:33:03 AM EDT

[#8]

Quote History

Quoted:
I was thinking about about the anti walk pins or whatever they call them. I have never messed with them before.. I have no clue what to buy.

View Quote

Correcting your hammer spring will also fix the walking trigger pin issue. A walking trigger axle is almost always caused by improper hammer spring installation.

[ARCHIVED THREAD] - Anderson LPK Spring problem?

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[ARCHIVED THREAD] - Anderson LPK Spring problem?

[ARCHIVED THREAD] - Anderson LPK Spring problem?