kalash m4 help

bluestripe93

i was using my kalash m4 aeg yesterday and it wasnt shooting every time i pulled the trigger it wouldnt work for a few shots then it would fire one then wouldnt work again then fire one,

then i came back to it today and its not working at all ,its not the battery i fully charged it (i think its a 9.6v battery), it might be the wiring or the motor but i tested it for continuity and its ok,

how could i fix it ?

Masada

is it dry firing or is there nothing at all coming from it?

bluestripe93

nothing its like its dead i tried different batterys aswell still nothing

Flecktarn

Did you check the fuse?

Leftyflip

It's either going to be the fuse, bad trigger contacts or faulty wiring. If it is the fuse it's simple and quick to replace, if its the trigger contacts then try giving them a good clean and if its faulty wiring, you're going to have to locate the fault and fix it.

bluestripe93

i disconnected the motor and put a red led light on the conections to test it and its working ok so its not the wiring

where is the fuse ?

i think it might be the motor
but the gun is less than 2 weeks old

Flecktarn

See the white thing bellow the battery

Leftyflip

bluestripe93 wrote: »

i disconnected the motor and put a red led light on the conections to test it and its working ok so its not the wiring

where is the fuse ?

i think it might be the motor
but the gun is less than 2 weeks old

If the light lit up, then its not the wiring or the fuse, its probably the motor, have you another AEG?

bluestripe93

flectarn - theres no white thing by the battery conector just the wire and the battery conector

leftyflip - i havent got another aeg

The_Joker

bluestripe93 wrote: »

i disconnected the motor and put a red led light on the conections to test it and its working ok so its not the wiring

where is the fuse ?

i think it might be the motor
but the gun is less than 2 weeks old

Did you buy it from a shop blue?

Flecktarn

bluestripe93 wrote: »

flectarn - theres no white thing by the battery conector just the wire and the battery conector

leftyflip - i havent got another aeg

Take off the stock and have a look

bluestripe93

what do i do now ?

Leftyflip

Where did you buy it from? Before you go any further...

bluestripe93

The_Joker wrote: »

Did you buy it from a shop blue?

yea i got it ordered from seairsoft

bluestripe93

Flecktarn wrote: »

Take off the stock and have a look

ive had the stock and stock tube off allready

The_Joker

The_Joker wrote: »

Did you buy it from a shop blue?

if it's shop bought bring it back if not, try the fuse with a AA battery a piece of wire and a bulb to check for continuity.

bluestripe93

The_Joker wrote: »

if it's shop bought bring it back if not, try the fuse with a AA battery a piece of wire and a bulb to check for continuity.

i allready cheacked for continuity with a tester and again with a bulb

DeBurca

bluestripe93 wrote: »

i allready cheacked for continuity with a tester and again with a bulb

if you have continuity then your fuse is OK

bluestripe93

everything else is working ok
do you think its the motor

Leftyflip

Does the motor make any movement at all when it isn't in the gun?

bluestripe93

no no moement but sometimes i can feel it move just a small bit but the bit on the end doesnt spin round

what about trying it the motor connected directly to the battery to see if its working

hairyman

Have you tried loosening the motor adjustement screw on the base of the pistol grip,,,note that some M4's need the pistol grip removed to do this(JG),,and some simply have an allen head screw on the bottom of the pistol grip.

bluestripe93

hairyman wrote: »

Have you tried loosening the motor adjustement screw on the base of the pistol grip,,,note that some M4's need the pistol grip removed to do this(JG),,and some simply have an allen head screw on the bottom of the pistol grip.

ive got the motor out of the grip and its not going round i dont think loosening the screw is going to work

Leftyflip

Your motor is probably burnt out.

Masada

try connecting the motor up to the wiring while outside of the grip. if that works then its likely everything is alright and that you might just have a gearbox lockup.

In this case, push out the front body pin and slide off the top receiver from the lower. then you will see the air nozzle. insert a long metal rod down here to push the piston back and release the gears. I usually use a long allen key for this or another good tip is the barrel rod that comes attached under most AK's.

Once you have something suitable, insert it into the air nozzle and push all the way back with some force. the gears will turn over and the piston should return to the most forward position. now try firing the gun with a charged battery and see how you get on.

bluestripe93

its this motor
http://www.khmountain.com/airsoft/product_info.php?products_id=421
should i get a new motor ?

Shiva

Its probably best if you don't go any further with your own maintenance on this.

Although SE Airsoft have a deservedly excellent reputation for customer service, and will no doubt see you right, its not very fair to be taking apart guns, voiding your warranty and then expecting them to sort it out for you.

In general, and this is for everyone, not just this particular instance, if you buy a gun from an Irish retailer and it develops a fault and you aren't completely sure you know what you're doing, bring it back before you attempt to fix it yourself.

Even if they weren't obliged to sort you out, any retailer worth his salt will fix the issue, if only to ensure your return custom.

bluestripe93

Masada wrote: »

try connecting the motor up to the wiring while outside of the grip. if that works then its likely everything is alright and that you might just have a gearbox lockup.

In this case, push out the front body pin and slide off the top receiver from the lower. then you will see the air nozzle. insert a long metal rod down here to push the piston back and release the gears. I usually use a long allen key for this or another good tip is the barrel rod that comes attached under most AK's.

Once you have something suitable, insert it into the air nozzle and push all the way back with some force. the gears will turn over and the piston should return to the most forward position. now try firing the gun with a charged battery and see how you get on.

i tried it outside the grip its not working

Masada

ah right, so trigger contacts are the next port of call.

If you are 100% sure there is continuity across them then the only other option is the motor but its somethig that almost never goes so i wouldnt be looking at that just yet. even when a motor is burned out it still moves, just not enough to turn over the gearbox.

bluestripe93

Masada wrote: »

ah right, so trigger contacts are the next port of call.

If you are 100% sure there is continuity across them then the only other option is the motor but its somethig that almost never goes so i wouldnt be looking at that just yet. even when a motor is burned out it still moves, just not enough to turn over the gearbox.

so what next then

dont you think i should leave it for now like shiva said

i dont want it all in bits at the end of the day i might not be able to get it back together again all thats off now is the grip and grip bottom,
but im going to gtac 2 next week and need it working

The_Joker

bluestripe93 wrote: »

i tried it outside the grip its not working

Blue put it back together and bring it back to the shop like Shiva said.
Two week old AEG, They'll look after you.

ZeroSignal

Interesting... I've been having a similar problem but with my Kalash AKS-74. It's only three weeks old but for the past two Sundays I've been getting this problem where it will suddenly stop working with no warning. I'll change the battery and check the fuse and it still won't work. It feels just like the way Bluestripe described where the motor feels like it's twitching slightly in the pistol grip. Then, also with no warning it will start working again about 2 mins after I've changed the battery and started pulling my hair out in the middle of the Airsoft field!

Does anyone know what I should do about it? I think I might try skirmishing with it again on Sunday and if it happens again I'll bring it back...

Leftyflip

It could be a loose connection, go over all the connections and look for anything shaking.

ZeroSignal

Leftyflip wrote: »

It could be a loose connection, go over all the connections and look for anything shaking.

Will do! Now, where would they be? Other than the ones on the motor, fuse and battery connectors what other connections could be the problem?

Leftyflip

ZeroSignal wrote: »

Will do! Now, where would they be? Other than the ones on the motor, fuse and battery connectors what other connections could be the problem?

That should be it, I'm not too sure on AK's but I'm sure Stercus Addict would be able to help you out more.

TNTQ

The transparent fuses used in those replicas have very bad habit of burnig where you can't see they are acctually burn.

Did you try to pull the triger with no fuse at all? just two connectors touching?

Did you try to remove motor from the pistol grip? In AK you probaby have V3 mechbox so more disassambly is required. In M4 I recon V2. is installed so just remove motor from pistol grip and see if it's spinning or not.

If it's not the motor or wiring and fuse they you need to work your way down and "crack" the gearbox. Before you do that see if gearbox is not just locking.

ZeroSignal

TNTQ wrote: »

The transparent fuses used in those replicas have very bad habit of burnig where you can't see they are acctually burn.

Did you try to pull the triger with no fuse at all? just two connectors touching?

Did you try to remove motor from the pistol grip? In AK you probaby have V3 mechbox so more disassambly is required. In M4 I recon V2. is installed so just remove motor from pistol grip and see if it's spinning or not.

If it's not the motor or wiring and fuse they you need to work your way down and "crack" the gearbox. Before you do that see if gearbox is not just locking.

I don't think the fuse has been tripped anywhere. Otherwise it wouldn't work at all, surely?

I'm not going to risk not using the fuse. Plus, the kind of fuse that is used means that it's quite hard to just join the connectors.

I removed the pistol grip to investigate the motor. I didn't notice any problems except that some absolute genius managed to strip a screw from the factory/shop/wherever. No idea if that will make it impossible to remove the motor or not. I just hope I won't have to. Also, the motor works fine. It's just that once every skirmish I have this absurd problem that comes and leaves as quickly as it began with no rhyme or reason.

I am definitely not going near the gearbox, but that doesn't sound like a half bad assumption. If not the best hypothesis. If it happens again I'm definitely bringing it back.

Thanks for the help.

TNTQ

It's very difficult to diagnose the problem over the forum or anyother way without seeing it. It could be many different things combined or just one on its own, which can cause same sympthoms. I could compare it to trying to heal teeth over the phone.

You need to remember, those are low and clones and their manufacturers leave a lot of uncovered field in terms of quality and quality assurance. You might have one model which never break and the opposite.

Who ever opende more than one gearbox from the same model "chepo" will know what I'm talking about.