Problem with MP5 trigger

reemet16 · October 9th, 2011, 07:00

I have a problem with my MP5 (ver 2 gearbox) trigger. The trigger works only if i pull it halfway. If i pull it to the end the gun jams - it makes a sound like it does if the battery is dead and cannot spin the gears anymore.
But If you pull the trigger halfway it works again.

I have opened my gearbox but i did not see anything strange there...

Does anyone have ideas what can be the problem?

godwin · October 9th, 2011, 08:25

Shorten the back-latch of the trigger, maybe it has problems with the sectorgear:

Uploaded with ImageShack.us

reemet16 · October 10th, 2011, 15:14

Thank you for the answer but thats not my problem. There is enough space between trigger and sectorgear. On this picture the trigger is pulled fully back.

I tried today to pull the trigger fully back and spin the gears without spring - all worked fine. But if i put it all together the problem remains. Maybe the problem is electrical??

XZIVR · October 10th, 2011, 15:18

uhhh you removed a mechanical part and it worked fine, so you are asking if the problem is electrical? I'm not sure I follow...

Skladfin · October 10th, 2011, 15:20

kind of sounds like the cut off lever is engaging early

Reckless · October 10th, 2011, 15:41

what do the trigger contacts look like? if they are gummed/carbon'd up further down, but still nice and shiney at the very begining ... you could be loosing full contact at full pull

reemet16 · October 10th, 2011, 15:43

Quote:

Originally Posted by Skladfin

kind of sounds like the cut off lever is engaging early

What exactly the cut off lever do? Does it work in full auto mode also or only in semi auto?
I have same problem in semi and full auto mode...

reemet16 · October 10th, 2011, 15:48

Quote:

Originally Posted by Reckless

what do the trigger contacts look like? if they are gummed/carbon'd up further down, but still nice and shiney at the very begining ... you could be loosing full contact at full pull

contacts are allmost like new. Its quite new gun - problem occured in the second half of the first battle.

godwin · October 11th, 2011, 12:31

If your gun looks like this - solder this contacts together (under selector-plate)

Uploaded with ImageShack.us

reemet16 · October 11th, 2011, 18:07

Quote:

Originally Posted by godwin

If your gun looks like this - solder this contacts together (under selector-plate)

Uploaded with ImageShack.us

what is wrong there? Why it is necessary?

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October 9th, 2011, 07:00	#1
reemet16 Trader rating Join Date: Oct 2011	Problem with MP5 trigger I have a problem with my MP5 (ver 2 gearbox) trigger. The trigger works only if i pull it halfway. If i pull it to the end the gun jams - it makes a sound like it does if the battery is dead and cannot spin the gears anymore. But If you pull the trigger halfway it works again. I have opened my gearbox but i did not see anything strange there... Does anyone have ideas what can be the problem?

October 9th, 2011, 08:25	#2
godwin Trader rating Join Date: Oct 2010	Shorten the back-latch of the trigger, maybe it has problems with the sectorgear: Uploaded with ImageShack.us __________________ Good Airsoft Techblog: (google translation works) http://airsoftaustria-tech.blogspot.com/

October 11th, 2011, 12:31	#9
godwin Trader rating Join Date: Oct 2010	If your gun looks like this - solder this contacts together (under selector-plate) Uploaded with ImageShack.us __________________ Good Airsoft Techblog: (google translation works) http://airsoftaustria-tech.blogspot.com/

October 10th, 2011, 15:14	#3
reemet16 Trader rating Join Date: Oct 2011	Thank you for the answer but thats not my problem. There is enough space between trigger and sectorgear. On this picture the trigger is pulled fully back. I tried today to pull the trigger fully back and spin the gears without spring - all worked fine. But if i put it all together the problem remains. Maybe the problem is electrical??

October 10th, 2011, 15:18	#4
XZIVR Trader rating Join Date: Mar 2011 Location: Calgary, AB	uhhh you removed a mechanical part and it worked fine, so you are asking if the problem is electrical? I'm not sure I follow...

October 10th, 2011, 15:20	#5
Skladfin Trader rating Join Date: Dec 2006 Location: Glace Bay, Nova Scotia	kind of sounds like the cut off lever is engaging early

Problem with MP5 trigger

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