TM Knight's SR-16 Not Working

[[]D[][]\/[][]D]

I recently purchased and installed a Magpul Pistol Grip for my TM Knight's SR-16. I had to play around with the motor spacer screw to find the right tension during the installation of the Magpul Pistol Grip. I also recently just purchased an Intellect 9.6V 3600mAh battery for it as well. After charging the battery, I went downstairs to my basement to shoot off a couple of rounds with my SR-16. After shooting about 100 rounds with no problems, I removed the battery and placed the gun on top of my work bench.

The following day after work, I wanted to shoot off more rounds with my SR-16. After installing the battery I pulled on the trigger to notice that nothing was happening. When I say nothing, I mean absolutely nothing at all was happening. I thought that I might have blown the fuse with the new battery so I went out and purchased another one from the local gas station. After installing the new fuse and the battery, nothing still happens when I pull on the trigger. Does anyone know what the problem could be? Because I'm certainly stumped and can't figure out what it is.

[The Saint]

So you're not getting that feel/sound of the motor trying to turn over but can't?

Have you tried a different battery, or backing off the motor height adjustment slightly?

What was the condition of your wiring and connectors? Any chance that one of the motor connectors worked its way loose? That happened to me a few times, until I clamped the connector tighter.

[[]D[][]\/[][]D]

Nope, no feel/sound of the motor trying to turn over at all.

I did try a different battery, I tried my original 8.4V 1600mAh battery but nothing. I also tried adjusting the motor spacer to no avail.

The condition of the wiring and connectors is like almost brand new. I had never taking apart the gun ever since I purchased it back in 2005. When I took the pistol grip off, the motor connectors where snugly connected to the motor.

Any other ideas?

[Skladfin]

maybe one of the motor plugs disconnected itself

[Styrak]

No he already tried that:

Originally Posted by []D[][]\/[][]D

When I took the pistol grip off, the motor connectors where snugly connected to the motor.

If it didn't work with 2 different batteries and you can't hear the motor even trying to turn, it's probably an electrical problem somewhere inside, or the motor is dead (not very likely since you were just using it). Perhaps something came loose inside or your switch is not working properly.

[Crunchmeister]

I would suggest you remove the motor, connect the connectors back to it, and connect the battery. Fire the gun to see if the motor turns outside of the gun. That way, you can at least diagnose if the problem is mechanical or electrical.

[[]D[][]\/[][]D]

I'll open up the gearbox tomorrow to see if that is the case. I was just hoping that I wouldn't have to do that. But it makes sense to check it.

[Crunchmeister]

First, try what I said. You can perhaps avoid having to open the gearbox at all if it's maybe an electrical problem outside the gearbox, or maybe the motor itself that's burned out.

[T_A_N_K]

Do what Crunch said, just keep in mind that broken motors are known to spin without a load. Chances are, you probably yanked a connection loose as you were taking off your original pistol grip.

[dpvu]

You could also test it with a continuity tester if you have a multimeter. Disconnect the wires from the motor and battery and test both the red and black ones. The black wire should have continuity even if the trigger's not pulled while the red one should only have continuity when the trigger is pulled. This should tell you quite easily if it's a wiring problem or the motor.

[m102404]

Spend another hour on it...get really frustrated and angry...pack it up.

Make arrangements to see a local gun doc....haul ass through a snowstorm (batten down the hatches guys...it's going to be a beaut today!)....almost crashing the car several times....

Spend a pleasant couple of minutes with a hot drink relaxing and shooting the shit with the gun doc (all the best gun docs will offer drinks and sit an chat...besides, it's cold outside and it gets them out of shoveling the drive ). Also...lets your rifle warm up after being in a cold trunk.

Then let the gun doc plug in the batt and test fire it...100% guaranteed to work on the first try. It's something about a magical aura that surrounds a gun doc's place.

Then you'll get home and it won't work...but that's because you've left the presence of the gun doc....HAHAHA

Personally....I'd take a very close look at how the pins and sockets are on the connector of your rifle and the batt. I'd also look to make sure that the leads that connect the wiring to the fuse assembly are making good solid contact. The connector pins/sockets can get pushed back into the plastic housing and/or the sockets can open up creating a loose fit.

I'd also pull the motor, reconnect the motor leads (red to +) and test fire the motor. Reinsert it if it spins.

Best of luck!

Tys