gun shorting and fireing on its own when switched to auto?

[jssmitty96]

hi all same gun as i have had issues power issues with previosuly.... most of the time no power goes to it whatsoever but anytime i switch it to auto i hear sparks and it fires full auto on its own ...waht could be shorting here? cause its not the wires for a fact!

[jonny lovegrove]

Re: gun shorting and fireing on its own when switched to auto?

selector plate? does it have a metal contact on?

[sigee]

Re: gun shorting and fireing on its own when switched to auto?

I had this problem.It turned out to be damaged shorting wire from the battery positive.

Si

[crasstoe]

Re: gun shorting and fireing on its own when switched to auto?

Is your trigger of the micro switch variety?

[seansamurai1]

Re: gun shorting and fireing on its own when switched to auto?

Makesure the motor contacts aren't touching metal and arcing, also makesure that the spade connectors to the motor are insulated right to the ends of the connectors.
If the gun is firing on its own and arcing, there is a short out. It just might be somewhere stupid, check wires inside the gearbox, especially where the wires are routed around in side the gearbox. Makesure that no connections around the trigger assembly are touching the gearbox shell. Check the contacts in resting position isn't touching or has any debris creating a connection.