Grey Posted June 13, 2022 Posted June 13, 2022 (edited) So my trusty 416D has stopped working … broke free from the sling and dropped about 1 foot straight down onto the silencer!! ? No sign of damage but stopped working immediately. Decided to have a look myself and now its sitting half stripped on my desk but thought I would ask if anyone might know what I need to get into to have a look? Basically I was taking it apart to to see if I could see anything. I need it for Sunday 19th so my best option is to find the issue and order parts if something is broken. Logic is telling me that it has to be motor, power or trigger related as anything else would still make noise? Even if the gearbox was broken would it still try and fire? Any ideas would be much appreciated! Thanks! ?♂️ Edited July 9, 2022 by Grey Fixed
Emergencychimps Posted June 13, 2022 Posted June 13, 2022 (edited) Pics of how far you have stripped it down would help, assuming you've done anything. My initial suggestion would be to check the connectors on the motor, did they come off? Then test with the motor out of the grip, connectors on then add the battery. To do this remove the pistol grip base plate and are there 2 wires connected to the motor? Are there any upgrades or MOSFETs? Edited June 13, 2022 by Emergencychimps
Grey Posted June 13, 2022 Author Posted June 13, 2022 Thanks for the quick reply! I’ll do the motor now. As far as I know this is a stock gun. Tested and nothing. Did the test with both mag in and mag out. I have a broken mag that allows dry fire.
Nick G Posted June 13, 2022 Posted June 13, 2022 Not a RIF I have, but isn't there a system in these (lever?) that stops it firing when the mag is empty ? I'd be looking at that, maybe something got forced out of place when it hit the ground. If that's the case then the mag that alows dry firing wont alow it to cycle either.
Emergencychimps Posted June 13, 2022 Posted June 13, 2022 2 hours ago, Grey said: Thanks for the quick reply! I’ll do the motor now. As far as I know this is a stock gun. Tested and nothing. Did the test with both mag in and mag out. I have a broken mag that allows dry fire. Have you got both the red and the black wire connected to the motor? Can't tell from this angle. Also - whats going on with the battery plugs? looks like there is 2 coming off the rif. As for the cut off, there is a mechanical cut off for it, but I'd rather exclude this first before encouraging someone to open their gearbox (at the very least you'd need to remove it from the lower), especially if they aren't that experienced at it.
Supporters Lozart Posted June 13, 2022 Supporters Posted June 13, 2022 2 hours ago, Grey said: Thanks for the quick reply! I’ll do the motor now. As far as I know this is a stock gun. Tested and nothing. Did the test with both mag in and mag out. I have a broken mag that allows dry fire. Do you have a spare motor you can do the same test with? Or another gun you can borrow one out of? Emergencychimps 1
Grey Posted June 13, 2022 Author Posted June 13, 2022 1 hour ago, Nick G said: Not a RIF I have, but isn't there a system in these (lever?) that stops it firing when the mag is empty ? I'd be looking at that, maybe something got forced out of place when it hit the ground. If that's the case then the mag that alows dry firing wont alow it to cycle either. Yes you’re right. I tested with a mag that allows this gun to dry fire. Maybe the bolt stop feature is something to look at ? 5 minutes ago, Emergencychimps said: Have you got both the red and the black wire connected to the motor? Can't tell from this angle. Also - whats going on with the battery plugs? looks like there is 2 coming off the rif. As for the cut off, there is a mechanical cut off for it, but I'd rather exclude this first before encouraging someone to open their gearbox (at the very least you'd need to remove it from the lower), especially if they aren't that experienced at it. Yes, motor was connected up with both wires. This gun has a Lipo mod and can run two batteries. I’m going to try and connect the motor to another battery out of the gun to make sure. 11 minutes ago, Lozart said: Do you have a spare motor you can do the same test with? Or another gun you can borrow one out of? Unfortunately I don’t have another motor to test. Nick G and Emergencychimps 2
Grey Posted June 14, 2022 Author Posted June 14, 2022 I'm going to be working on this today. Watched a video about taking it apart and saw where the spring sits for the empty mag detection feature so I'm hoping that might have popped off! ? Lets see what happens ....
Emergencychimps Posted June 14, 2022 Posted June 14, 2022 (edited) I got the impression it was now dry firing and therefore ok? Still having issues? Edited June 14, 2022 by Emergencychimps Spelling
Grey Posted June 14, 2022 Author Posted June 14, 2022 Nope…still the same issue. I have a specific mag that lets me dry fire it and that wasn’t working when i was testing.
Grey Posted June 14, 2022 Author Posted June 14, 2022 So now completely opened up! Theres nothing that’s missing or out of place. I’ll clean the contact for the trigger and see if i can test it before i put it back together. I’m not sure how the white piston needs to be set for reassembly so I’ll have to look that up. If anyone knows please let me know.
Emergencychimps Posted June 14, 2022 Posted June 14, 2022 (edited) My suggestion at this point would be to stop, connect the motor up, attach a battery and "pull" the trigger (move the bit to simulate a trigger pull). Does it turn the motor? If not you have a break in the circuit and that is what needs sorting. Also, make a not of any shims, where they are etc so you can replace them exactly when reassembling. When I reassemble I have the piston forward. assuming it's not caught on the gears it'll go forward when you add the spring anyway. Also, I'd check the lever thing is moving up and down freely at the back. Edited June 14, 2022 by Emergencychimps Grey 1
Grey Posted June 14, 2022 Author Posted June 14, 2022 I’ve tested the circuit and it works - from buffer to motor with a pull of the trigger. On visual inspection everything looks fine. Nothing broken and nothing out of place - except the piston spring that wasn’t attached to the piston. I think this might be aftermarket as it looks bigger than the standard ones I’ve seen in videos. I’m going to slowly start to reassemble and see how that goes.
rj1986 Posted June 17, 2022 Posted June 17, 2022 If you can remove the spring without the piston coming out it's aftermarket as TM springs are glued into the piston iirc. For the bolt stop, you can literally put your finger inside the mag well and push the bolt release up inside.
Emergencychimps Posted June 17, 2022 Posted June 17, 2022 Did you get it working after reassembling? I guess from a lack of follow up it's yes.
Grey Posted June 17, 2022 Author Posted June 17, 2022 Nope! Not only that, I snapped the solder connection on the buffer tube! Theres a chance its not working because of the connection so I'll probably send it to a shop now. I did disassemble again so will look to carefully put it back together and try to solder and see how I get on. I'll keep the thread updated to completion just in case someone else ever has this issue. Emergencychimps 1
Grey Posted July 9, 2022 Author Posted July 9, 2022 It LIVES! So just to close this off - after taking it apart a couple of times and testing where everything worked, everytime I reassembled and tested it didnt work. In the end I gave in and dropped it to Wolf Armouries. The tech initially had the same issue as I did with parts working when disassembled and then not working when assembled. He finally traced the fault to a tiny bit of corrosion on the motor that the initial drop must have dislodged. I'm happy to have the gun back - working and serviced with new lipo connections and happy with the service I recived from Wolf. Floperator 1
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