Author Topic: Remington 572 lock up problem - its fixed! (Read 1938 times)

Bullseye · « **on:** May 31, 2004, 06:19:53 PM »

I have a Remington 572 pump action 22 rifle. When I was shooting it today the bolt was not locking up properly. When the gun has a round in the chamber if you pull on the forend it will move backwards unlocking the bolt. It will do this all the time and you can see the button that you normally push to pump the gun move. I had a gunsmith do a trigger job on this gun since I shot it last and was wondering if he could have done something to mess it up. I would not think that he would have messed with any of the surfaces that lock the bolt. I also dropped a Contender barrel in the safe a few weeks ago and it hit the gun and left a mark on the trigger guard and stock but I can see not damage to the action lock lever.

Any ideas?

gunnut69 · « **Reply #1 on:** June 01, 2004, 09:32:19 AM »

It's possible you bent the bolt release and altered it's connection with the disconnector. It's also possible the bolt lock bar and it's spring are not working correctly or the locking bar stud is missing in action. It's also possible the fire control mechanism was incorrectly assembled. Will the weapon drop the hammer with the bolt slightly unlocked, DON"T TEST IT WITH LIVE AMMO.. Will the weapon fire as the pump is worked if the trigger is held back... This is a fairly selicate mechanism and if it fires unlocked it couyld be unpleasant.. It is also possible the smith who did the trigger job, created the problem..

Bullseye · « **Reply #2 on:** June 01, 2004, 01:48:43 PM »

gunnut69

The hammer will not drop with the bolt slightly unlocked. It will also not fire when holding the trigger back and pumping the gun. Does this help narrow the possible problem down any? I also took the trigger mechanism out of the gun and cannot see any damage to the action lock lever. I plan on taking it back to the smith that worked on it before, I would just like to some idea what the problem is before I do that.

Thanks.

gunnut69 · « **Reply #3 on:** June 01, 2004, 08:49:10 PM »

It sounds as though the locking bar is not rising up to fully engage the bolt. Unsure of the reason but are you sure the weapon is correctly assembled? The sction of the pump is pushing the lock bar down which is depressing the release bar in the fire control mechanism. This should not be happening. The lock bar is not fully engaging the bolt. Did you fire the rifle before noticing the problem??

Bullseye · « **Reply #4 on:** June 02, 2004, 01:40:08 AM »

I think you are right about the locking bar not engaging the mechanism correctly. The gun seems to be assembled correctly but the trigger mechanism is pretty complicated looking. I did fire the gun before noticing the problem. I noticed it when shooting the gun and I was pulling back on the forearm to get the gun tight against my shoulder and it would not fire because the bolt was unlocked some.

gunnut69 · « **Reply #5 on:** June 02, 2004, 08:13:58 AM »

The action bar lock holds the locking bar up in engagement with the bolt.. Try manually holding the locking bar up with a finger while attempting to work the pump. This is of course done with the trigger assembly out of the weapon. This will show weather the locking bar can hold the bolt in place. I'm betting it will, since you shot it and the action didn't fly open when the weapon fired. That means the locking bar lock is not holding the locking bar up far enough. It is also possible to alter the relationship between the sear and the disconnector until it moves to far allowing the locking bar to be pushed out of engagement with the bolt. I believe the 'smith needs to fix this one.. Good luck and keep us informed.

Bullseye · « **Reply #6 on:** June 02, 2004, 05:46:28 PM »

gunnut69

I took the gun to the smith tonight before I read your post to try that last test. One thing he noticed is that the action lock lever had a lot of side to side play in it and when you pushed it towards the center of the gun the action will lock. The smith is a good guy and has done good work for me before, I expect a good outcome to this. Thanks for your help and I will let you know the outcome in a week or so.

Bullseye · « **Reply #7 on:** June 16, 2004, 03:05:14 PM »

[/quote]That means the locking bar lock is not holding the locking bar up far enough. It is also possible to alter the relationship between the sear and the disconnector until it moves to far allowing the locking bar to be pushed out of engagement with the bolt. I believe the 'smith needs to fix this one..

I got the gun back tonight and you were exactly right gunnut69. He said that he took a little to much off the sear and it change the relationship of the other since it is all linked together. He said the locking bar was just barely catching the bolt and he did something to get the relationship back. He said that he should have caught that when he did the trigger job and did not charge me for the fix. It is nice to find an honest smith that is reasonably priced and will take of a problem if it arises.

Thanks for the help. I felt better taking it back with some kind of idea about what was wrong. It also made me feel much better when I picked it up and the description of the problem agreed with another expert.

gunnut69 · « **Reply #8 on:** June 17, 2004, 10:25:14 AM »

Most anybody can make a mistake, the truly wise have learned to admit it and learn from them! Sounds like a good smith.. and good luck with the 572..