Gearbox question.

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Gearbox question.

Postby glockmeister » Tue Jul 10, 2012 1:59 am

Hello!

I have been working on my gun's gearbox recently, and I ran into a problem.
After reassembling the gearbox correctly (not the first time I have ventured into the gearbox).
I find that my gun's gears will click when I pull the trigger. Of course the spring doesn't get pulled back and the gun will just click. I reopened the gearbox a couple times seeing if I was missing something, placed my ar latch wrong, etc... Nothing I could see. The motor spins fine on its own. Now to the battery, I have an 8.4v 3500 mah brick battery that I thought was new from the outlet but turns out to not hold a charge correctly. Was wondering if it is possible that my battery just can not hold enough charge to spin the super high torque motor on an m120. Thank you everyone.
"We can't solve problems by using the same kind of thinking we used when we created them.â€
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Re: Gearbox question.

Postby Payback » Tue Jul 10, 2012 9:43 am

Even with a low power battery you should get a half a turn.



When you get a "click" sound, is the motor trying? Like can you hear the motor spin any bit at all? It sounds stupid, but double check that you have the motor hooked up right. If the wires are backwards it will try to turn in reverse and hit the AR latch and then just click. If your motor doesn't have the red post it can be easy to drop it in wrong.

If that's not it, try another battery, or chase your wiring down and see if you have a wire grounding on the box or something.
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Re: Gearbox question.

Postby glockmeister » Sun Jul 15, 2012 2:09 pm

I will be disappointed if that is the problem. Let me mess with it and I will see if putting the motor in both ways solves my problem.
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Re: Gearbox question.

Postby glockmeister » Sun Jul 15, 2012 3:13 pm

Charged up the battery, plugged it into the gun, pressed the trigger and I instantly smelled burning plastic coming from the adaptor connected to the gun's wiring. Yanked the wires, burned my hand, and now my tamiya connector is trashed. What the hell just happened.
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Re: Gearbox question.

Postby Undying3221 » Thu Feb 20, 2014 8:57 pm

It means way too much current went through your wires and burned up the timaya connectors. You should rewire to deans anyways
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Re: Gearbox question.

Postby Alien_Hunter » Thu Feb 20, 2014 9:06 pm

Here's what I will suggest.

-Motor polarity is backwards.

-Anti Reversal latch problem?

-Piston is stuck on something

-Gears are shimmed too tightly

-Tappet plate is stuck (Not sure if that could cause gun to fail to cycle)

-Short circuit in trigger (I don't have any experience there)
I'm the osiris of this.
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Re: Gearbox question.

Postby Jester316 » Thu Feb 20, 2014 9:29 pm

2 year necro!

You guys must like that cold dead feeling...

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FIRE CLEANSES ALL!
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