poachers Posted February 23, 2019 Share Posted February 23, 2019 I think my trigger mechanism has gone on my l85a1 army armenant I've took it apart and the trigger part itself fires just fine it's not untill I put the piston section back on it sometime doesn't fire or doessnt fire at all excuse my terms with parts I don't know the technical names for them I see this is a common issue has any one fixed this as I've took it to a local shop and they said it's more hassle then it's worth so just wanted to get a second opinion thanks Mike Link to comment Share on other sites More sharing options...
Supporters Prisce Posted February 23, 2019 Supporters Share Posted February 23, 2019 When it stops firing, put it into auto and fire for a sec, then back to semi. It is a common issue, there are lots about it online, but I gave up with mine as I couldn’t get it to a place where I was happy with it. Link to comment Share on other sites More sharing options...
poachers Posted February 23, 2019 Author Share Posted February 23, 2019 Nope still doesn't I've tried that fires perfect when I've got the gearbox out on its own it's only when the piston part is connected it fires a few times then completely stops I've pushed the lever in the mag housing and the piston slowly release it then fires a few more times then stops it's a hit and miss Link to comment Share on other sites More sharing options...
Supporters Prisce Posted February 23, 2019 Supporters Share Posted February 23, 2019 Have you taken it apart? Did you buy it second hand? I will have to have a look for the video later... busy for now. Link to comment Share on other sites More sharing options...
poachers Posted February 23, 2019 Author Share Posted February 23, 2019 Yea got it 2nd hand I've taken it apart and the gearbox works fine I'll do some videos etc later aswell Link to comment Share on other sites More sharing options...
poachers Posted February 23, 2019 Author Share Posted February 23, 2019 Here's a video it's so frustrating as I just can't see why it's doing it 20190223_191534.mp4 Link to comment Share on other sites More sharing options...
Iceni Posted February 23, 2019 Share Posted February 23, 2019 Battery sounds like it's about dead. Sounds like it's running about 5rps, without load. Even with a useless motor that sector gear should be absolutely flying around. So the first thing I would do is buy a new battery and test it with that before you start ripping the gun to bits. Link to comment Share on other sites More sharing options...
poachers Posted February 23, 2019 Author Share Posted February 23, 2019 Yea that's with a nearly flat Lipo with a charged up nimh it's goes quicker but still does the same stops etc Link to comment Share on other sites More sharing options...
RR01 Posted February 24, 2019 Share Posted February 24, 2019 The AA L85 suffers from burnt out trigger contacts. I've had three of these in the past and all had the same problem. You can buy replacements from G&G that are a direct replacement for the AA trigger contact. I bought mine direct from G&G quite a few years ago, but if I remember correctly there is a UK parts supplier now (just can't remember who it is). The other option to stop this happening again is to fit an inline mosfet to take the current out of the trigger contacts. The reason that your gearbox cycles without the piston attached is that the bare gearbox takes much less current to turn than when the piston is attached. Link to comment Share on other sites More sharing options...
poachers Posted February 24, 2019 Author Share Posted February 24, 2019 2 hours ago, RR01 said: The AA L85 suffers from burnt out trigger contacts. I've had three of these in the past and all had the same problem. You can buy replacements from G&G that are a direct replacement for the AA trigger contact. I bought mine direct from G&G quite a few years ago, but if I remember correctly there is a UK parts supplier now (just can't remember who it is). The other option to stop this happening again is to fit an inline mosfet to take the current out of the trigger contacts. The reason that your gearbox cycles without the piston attached is that the bare gearbox takes much less current to turn than when the piston is attached. Thank you would I need to repair the trigger contacts before fitting a mosfet and what mosfet would you recommend thank you Link to comment Share on other sites More sharing options...
RR01 Posted February 25, 2019 Share Posted February 25, 2019 20 hours ago, poachers said: Thank you would I need to repair the trigger contacts before fitting a mosfet and what mosfet would you recommend thank you Yes, you will need to buy a new contact set. As to mosfet, I'm not sure as there are far more available now than when I did mine in 2011/12. However, I just had a look online for the R85A1 trigger unit and G&G are not showing it as a replacement part any longer, so unless someone in the UK or HK has old stock that might prove to be a problem. Repairing the existing contacts might now be the only option. That said the current version has an electronic trigger unit and may be backwards compatible if you can find out which one they use. Link to comment Share on other sites More sharing options...
Podge1945 Posted March 5, 2019 Share Posted March 5, 2019 I had one on these 2 yrs ago and had the same problem. I used it for 20min before it died then took it back the the shop. They had it for 4 weeks! Gave it back and it lasted 5 min. I gave it back to them and swapped it for the ics tavor sportline, best thing I could of done. Stay away from AA go to the ics l85a2. Link to comment Share on other sites More sharing options...
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