| Repairing an g4-a3 dmr | |
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Epinkard - Badger of Doom Esteemed Alumni
Posts : 385 Join date : 2011-01-24 Age : 34 Location : Within range
| Subject: Repairing an g4-a3 dmr Fri Jul 15, 2011 1:01 pm | |
| In case the RMA @ airsoft gi tries to make me pay for shipping back to airsoft gi or wont accept the gun for repairs due to my not having the original packaging. Im considering trying to fix it myself. While in full auto the gun continues to shoot after I've taken my finger off the trigger. As i understand it that is caused by the trigger contacts being too long or misaligned. im wondering would bending the contacts to shorten them work in fixing that problem? The wires going to the motor are somewhat loose but im positive i can fix that with no trouble. The battery compartment had a plastic holder that came in it to put the battery in. the problem with this is that if i try to adjust the gun to some of the shorter positions the holder gets in the way and crimps the battery wire. Would there be any ill effects in not using the battery holder? | |
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Victor Admin
Posts : 238 Join date : 2011-01-23 Age : 35 Location : MSU Starkville, Mississippi
| Subject: Re: Repairing an g4-a3 dmr Fri Jul 15, 2011 2:21 pm | |
| As far as the battery holder, it would probably just mean the battery wiggles in there. Which isn't a big deal.
The contact might also just be getting stuck. Which could mean it needs some grease to allow it to move freely. It could mean the contact is getting stuck, which may mean there's a little snag in there. Moving the contacts around a lot can normally show you if there's a snag.
In conclusion, check the firing contacts, whether its the plate the slides on the side of the gearbox or the pin the pushes into the prongs. | |
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Epinkard - Badger of Doom Esteemed Alumni
Posts : 385 Join date : 2011-01-24 Age : 34 Location : Within range
| Subject: Re: Repairing an g4-a3 dmr Fri Jul 15, 2011 4:00 pm | |
| Can i check this without opening the gearbox? I know this is a noobish question i just haven't messed with a version 2 gear box or a m4 before. | |
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Victor Admin
Posts : 238 Join date : 2011-01-23 Age : 35 Location : MSU Starkville, Mississippi
| Subject: Re: Repairing an g4-a3 dmr Fri Jul 15, 2011 5:58 pm | |
| Ah yes, version 2 gearbox has the side plate. So yea you can check to see if the sliding plate on the outside of the gearbox is the problem. However, for it to be stuck constantly firing, I'd assume it would be a problem with the trigger assembly which is inside the gearbox right in front of the trigger. | |
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Epinkard - Badger of Doom Esteemed Alumni
Posts : 385 Join date : 2011-01-24 Age : 34 Location : Within range
| Subject: Re: Repairing an g4-a3 dmr Fri Jul 15, 2011 9:57 pm | |
| Im a little bit worried about trying to take the gearbox out due to the wires being in the back. Do you have any tips that might help me there? | |
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Victor Admin
Posts : 238 Join date : 2011-01-23 Age : 35 Location : MSU Starkville, Mississippi
| Subject: Re: Repairing an g4-a3 dmr Sat Jul 16, 2011 2:47 am | |
| Don't really know much about armalites but there may be an extension that you can unplug somewhere just for that reason. | |
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MatthewTyson
Posts : 207 Join date : 2011-01-23 Age : 33 Location : Starkville
| Subject: Re: Repairing an g4-a3 dmr Sun Jul 17, 2011 1:26 pm | |
| Full auto stick happens when your trigger block gets stuck forward. That means taking apart the gearbox.
Taking apart a rear-wired armalite sucks. I can do it but I would much prefer to let ASGI do it because if they fuck up they still owe you for it. | |
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Epinkard - Badger of Doom Esteemed Alumni
Posts : 385 Join date : 2011-01-24 Age : 34 Location : Within range
| Subject: Re: Repairing an g4-a3 dmr Sun Jul 17, 2011 4:39 pm | |
| I understand the sentiment about wanting ASGI to repair it. It is still under warranty and I plan to sent it back to them. I'm just trying to figure out what to do in case they wont accept the gun for repair due to me not having the original packaging. Im still waiting to hear back from them about how to ship the gun back to them and if im going to have to pay for shipping and how much that would cost. | |
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MatthewTyson
Posts : 207 Join date : 2011-01-23 Age : 33 Location : Starkville
| Subject: Re: Repairing an g4-a3 dmr Sun Jul 17, 2011 5:08 pm | |
| Getting stuck on full auto happens because the trigger block gets stuck, as was mentioned. A little bit of sandpaper and some grease will fix it right up. Victor and I are both capable of fixing it right up should ASGI decline to do it for you. Just let us know. | |
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Epinkard - Badger of Doom Esteemed Alumni
Posts : 385 Join date : 2011-01-24 Age : 34 Location : Within range
| Subject: Re: Repairing an g4-a3 dmr Sun Jul 17, 2011 5:13 pm | |
| Thanks Ill be sure to if they refuse it. I talked to them last week and they got the rma approved. Im just waiting for an answer to the shipping problem. If i have to ask you to do it do you mind if i watch? Im trying to get a better feel for fixing my gear. | |
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MatthewTyson
Posts : 207 Join date : 2011-01-23 Age : 33 Location : Starkville
| Subject: Re: Repairing an g4-a3 dmr Sun Jul 17, 2011 11:29 pm | |
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trumpet7347 Webmaster
Posts : 166 Join date : 2011-01-23 Age : 32 Location : Starkville MS
| Subject: Re: Repairing an g4-a3 dmr Sun Jul 17, 2011 11:59 pm | |
| Getting the gear box out of the GI's is that bad, just remove the buffer tube and the there is a couple of slide clips that detach the wires from the battery plug, after that its as easy as a few screws and a pin or two. The GI's however are slightly different in the breakdown, when removing the upper receiver from the lower, instead of tilting like most ar's do, it slides forward, this means that you have to remove both of the body pins, not just the rear one. If you want to know anything more about getting the gear box out just ask, I have broken mine down enough to be able to walk you through it. | |
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Epinkard - Badger of Doom Esteemed Alumni
Posts : 385 Join date : 2011-01-24 Age : 34 Location : Within range
| Subject: Re: Repairing an g4-a3 dmr Mon Jul 18, 2011 12:57 am | |
| Thanks for the instructions on getting the gearbox out. I knew there are clips that attach to the motor but i didn't know about the ones in the buffer tube. Does the blowback system come off with the upper receiver or is it attached to the gearbox? | |
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trumpet7347 Webmaster
Posts : 166 Join date : 2011-01-23 Age : 32 Location : Starkville MS
| Subject: Re: Repairing an g4-a3 dmr Mon Jul 18, 2011 9:18 am | |
| the entire blowback system is just a small piston that is attached to the gear box itself, you shouldn't have to worry about it when taking the upper receiver off. | |
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Epinkard - Badger of Doom Esteemed Alumni
Posts : 385 Join date : 2011-01-24 Age : 34 Location : Within range
| Subject: Re: Repairing an g4-a3 dmr Tue Jul 19, 2011 12:38 am | |
| Thanks. The RMA got back to me today and im probably going to send it to them but i still am appreciative for the information. | |
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