TM NGRS fault

[Johnbs]

Hi all,

 

Pritty new to airsoft so I purchased a TM NGRS M18 last year.
 

However whilst playing the other week it just stopped working. After tinkering with it  I couldn’t get it going so I gave it a slap and it came into life for a few bursts. Then after that it stopped again, so I again gave it a few slaps (love taps) and it would work some times. This processed continued for the afternoon. It’s like there’s a loose connection or something but I’m a bit baffled. Almost like it’s shaken it’self loose. Dare I say this did appear after a long burst so maybe linked. 
 

I have tried checking the motor connections and took the stock off to check the connections from the batteries but all seems okay. 
 

has anyone had any issues with this? Had the problem or fixed it? Or just general insight? 
 

cheers 

[Emergencychimps]

What batteries were you using? Have you installed a MOSFET? 

 

There is a known issue if people don't go "full" trigger pulls where it can lock up. Typically a low battery charge won't help etc. 

 

If also suggest double checking the motor connections, ensure they are really on, sometimes they can come off and sit over the bit in the motor, looks like it's connected but it's not. 

[Enid_Puceflange]

@Johnbs

 

Im having a similar issue, some pretty good suggestions to me in here.

Surprisingly, I never thought to look at the motor connectors before I sent it off to a tech to get looked at! 🤦🏻‍♂️

 

 

[Johnbs]

Running them on the  batteries I didn’t covert it as first gun and just getting into it. 
 

I double checked the motor connections and even tightened the crimps on the wires to get a better connection. 
 

it’s weird it sometimes quietly hums when I have the trigger pulled like it wants to fire but not enough juice to cycle. I have changed batteries and mags and no mag etc and no change in symptoms. 

[Emergencychimps]

You're using the stock, 8.4 nimah batteries? If so, that , slightly discharged batteries and not enough of a trigger pull is the combo you're getting , it's pretty well known for stock tm recoils. 

 

I suspect if you switch it to full auto rather than smacking it then it'll start as well. Essentially what you have is exactly what you're describing, not enough juice is getting to the motor to turn the gears enough and it's stopping just before firing (used to be referred to as lock up). 

 

Normally, you're absolutely right to run it stock, a TM especially however this is one of those things that are just crap. The stock batteries are crap and there is no recouping your money for them. My advice would be to buy some 7.4 lipos and use those, You'll either need to convert the rif or buy a converter. IF you can solder 2 bits of wire together, convert it yourself, there are videos (probably from eagle6) on how to do this on youtube. It's easy if you can solder.

 

If you can't solder or are too intimidated to, then some retailers (I think fire support do) that sell a converter. 

 

There are other methods to solve this. You can try really hard to give the trigger a good pull every time, however the batteries likely aren't up to the job, they were probably sitting in the retailers inventory for years, so while they might be new to you, they could be 5-10 years old. You can fit or have fitted a mosfet, the Gate Titan is the current one, this is somewhere in the region of £100-£170 (depending on model) plus labour (been a while since I looked), but it is pretty awesome. If you're doing this and paying someone to, then I'd consider a spring upgrade too, even if just an m95 or m100 as this is a gearbox open job. 

 

Where abouts are you based?