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Problem with MP5 trigger

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Old October 9th, 2011, 07:00   #1
reemet16
 
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?
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Old October 9th, 2011, 08:25   #2
godwin
 
Join Date: Oct 2010
Shorten the back-latch of the trigger, maybe it has problems with the sectorgear:


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Old October 10th, 2011, 15:14   #3
reemet16
 
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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??
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Old October 10th, 2011, 15:18   #4
XZIVR
 
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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...
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Old October 10th, 2011, 15:20   #5
Skladfin
 
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kind of sounds like the cut off lever is engaging early
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Old October 10th, 2011, 15:41   #6
Reckless
 
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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
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Old October 10th, 2011, 15:43   #7
reemet16
 
Join Date: Oct 2011
Quote:
Originally Posted by Skladfin View Post
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...
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Old October 10th, 2011, 15:48   #8
reemet16
 
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Quote:
Originally Posted by Reckless View Post
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.
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Old October 11th, 2011, 12:31   #9
godwin
 
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If your gun looks like this - solder this contacts together (under selector-plate)


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Old October 11th, 2011, 18:07   #10
reemet16
 
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Quote:
Originally Posted by godwin View Post
If your gun looks like this - solder this contacts together (under selector-plate)


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what is wrong there? Why it is necessary?
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