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Posted: 12/14/2007 3:34:22 PM EDT
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Hey folks...just got my first belt-fed weapon. Its a Rapid Fire 1919A4 and it looks pristine. However, I noticed immediately that the bolt was locked back and it is my understanding that to lock the bolt back, you need to wedge a spent casing or similar object into the circular indentation behind the op rod. Anyway, I lifted the cover and whacked the rod and the bolt then moved forward into the closed position, but not quickly like I'd expect. Then, when pulling the rod back, it seems to not want to slide all the way back and I can hear a "scraping sound as the bolt gets about mid way to the rear... I'm far from an expert, but something seems wrong here...any ideas? Thanks guys... S/F |
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UPDATE: I've lubed the bolt and receiver a little bit and its moving much smoother now...the bolt also slides all the way back...I'll keep oiling. Please let me know if this is just a lube problem or if there is something else I need to look out for...thanks again |
There should not be any need for any type of whacking.  If there is no latch to lock the bolt back then usually the arm that extracts the round from the belt will sometimes hold the bolt open. Just wondering, was the lid open or closed? I would manually cycle the bolt with the lid open and document the results. If it cycles smoothly then maybe the feeder handle (terminology may be wrong) was not aligned with the groove in the bolt. If it still sticks with the latch/lid opened then cycle a few more times, dismantle the item and inspect each part for any shiny area which would indicate excessive wear. Good luck and let up know the results. |
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Thanks for the feedback so far...JThompson, the lid was closed initially...I then opened it and cycled a few times...its smoother until the bolt gets towards the rear then its still a little rough...but it is cycling all the way back now. It does look like the arm extractor may be holding the bolt open...I take it this is normal? As soon as I get a chance, I'll strip (the gun  ) and report back...S/F |
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OK...I can clearly see the problem now. On the left side of the head of the swing extractor/ejector, there is a "button" that depresses with an internal spring. If I push the button with my thumb, it will move all the way into the head no problem...However, if I pull the bolt all the way to the rear position and release it forward, there is a spot about half way forward where that little "button" seems to get stuck on the left side of the receiver (left side if you are positioned to the rear of the 1919 with the barrel facing forward). The only way to get the bolt all the way forward again is if I pull the bolt all the way back and manually guide the swing extractor/ejector above that spot on the receiver where that button gets caught. I've lubed the receiver and entire bolt very well, but that little part gets stuck and I can't see anything that its getting stuck on... I've tried to make this as clear as possible...does anyone know what I'm talking about? Thanks... S/F |
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That spring loaded device that you refer to is the plunger that forces the extractor to follow the correct pathway on the left sideplate. As the bolt moves to the rear it pulls a round from the belt/link, then the track pushes the round down in the T slot on the face of the bolt. It sounds like there may be an excessively large machine mark that is preventing the bolt from moving as it should. Can you take a picture of the left sideplate where the track is? Also, there is a large flat spring in the topcover that is supposed to push the extractor down, its possible that the spring isnt pushing the extractor down as is should, and the extractor is binding at the rear of its travel. This can also happen if the topcover is open, as no tension is put on the extractor to force it down. The bolt should fall freely on its own forward with the barrel pointed to the ground, and the drive spring locked in the bolt. If it doesnt, some work needs to be done to free it up, setting aside the extracot problem. Pull the bolt out and remove the extractor, just rotate it up and slide it out. Put the bolt back in and recheck the binding. Shoot me an email if you want any more clarification. |
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Looks like I solved my problem... Check out this link: www.1919a4.com/forums/showthread.php?t=12945&page=3 |
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