Otis Singleton
Electric airsoft guns are replica toy weapons that shoot non-metallic spherical pellets, known as BBs. They are powered by batteries, and taking proper care of these batteries can help improve their lifespan. However, there may be times when your electric airsoft gun is not functioning properly. Common issues include misfeeding, not firing, double feeding, or excessive back-and-forth play in the front of the gearbox shell. Basic troubleshooting steps include checking for jams, ensuring the magazine is properly seated, and using high-quality BBs. More complex issues may require disassembling the gun, which can void the warranty. In such cases, it is recommended to seek professional assistance or refer to repair manuals and guides.
| Characteristics | Values |
|---|---|
| Gun does nothing on a fully charged battery | Replace the fuse with a 20-40 AMP rating fuse, ensure the red and black wires are connected to the motor, or the trigger contacts are broken |
| Gun makes a clicking noise | Plug in a fully charged 9.3-volt battery, or purchase a higher torque motor |
| Gun makes a loud scratchy sound | Adjust the motor height, or seek professional assistance |
| Gun is misfeeding, not firing, or double-feeding | Use the correct BBs for your gun, ensure the magazine is properly seated, and clear any jams |
| Gun has excessive back and forth play in the front of the gearbox shell | Perform the O-Ring modification |
| Gun has a cut wire | Apply solder to complete the circuit |
| Selector plate engages the safety switch | Shave down the knob so the selector plate does not touch the safety lever |
| Cut-off lever is too high/thick | Shave down the protruding mound on the cut-off lever screw hole |
| Gun will not fire when wired up | Manually fire the gun with the gearbox open to check for a mechanical problem |
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What You'll Learn
Fixing a blown fuse
A blown fuse in an electric airsoft gun can be caused by a short circuit in the system or an overloaded motor. This can happen if the gun is jammed and you try to shoot anyway. It can also be caused by using the gun too much on full auto, which puts too much stress on the motor.
To fix a blown fuse, you will need to replace it with a new fuse. Fuses can be found at your local hardware store, or online at retailers like eBay or Amazon. The new fuse should have an AMP rating of 20-40. To confirm that the issue is with the fuse, you can temporarily bypass the old fuse.
To replace the fuse, open the fuse box and take out the blown fuse. Then, replace it with the new fuse.
It is important to note that fuses are there to protect the gun from short circuits and overloaded motors. If you replace the fuse with one that has a higher AMP rating, it may not blow as easily, but it will also provide less protection for the motor.
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Fixing a break in connection at the motor
If your electric airsoft gun is not working due to a break in connection at the motor, you can try the following fixes:
Firstly, identify whether the positive (red) and negative (black) wires are connected firmly to the motor. If not, connect them firmly or solder them if necessary.
If the wires are connected but the gun is still not working, the next step is to disassemble the mechbox and then reassemble it with only the trigger and complete trigger switch components (the trigger trolley, the spring of the trigger trolley, and the wires). Connect the motor plugs to the motor, hook up your battery, and pull the trigger. If the motor spins, the issue is resolved. If not, you will need to re-adjust the female contacts.
If the problem is that the contacts are not touching each other, bend them so that they come into contact with one another.
If you are operating an AEG setup that requires a metal contact on the selector plate, ensure that the contact on the selector plate is touching the exterior contacts from the trigger switch. If not, bend the exterior contacts so that they are in full contact with the metal contact on the selector plate.
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Fixing a locked gearbox
A locked gearbox is a common issue with electric airsoft guns. This can be caused by a weak battery, rapid pulling of the trigger on semi-auto, or a combination of both. The cutoff lever, which resets the trigger shuttle after a semi-auto cycle, can get stuck against the trigger shuttle, causing the trigger to become unresponsive.
To fix this issue, you can try the following methods:
Method 1: Switch to Full Auto
Flip the selector switch to full auto, which will manually move the cutoff lever and allow the trigger shuttle to reset, thereby unlocking the gearbox.
Method 2: Adjust the Cutoff Lever
Before assuming your gun is broken, try adjusting the cutoff lever to make it more rounded. This will make it harder for the trigger shuttle to get stuck against it.
Method 3: Check Battery and Motor
If your gearbox continues to lock up, try plugging in a fully charged, high-quality battery with a nominal voltage of 9.3 volts or higher. If this doesn't work, you may need to purchase a higher-torque motor, as your stock motor may be underpowered.
Method 4: Expose the Gearbox
With the lower part of the gearbox exposed, use a strong, thin, pick-like rod to push or pry the Anti-Reversal Latch up or to the side to disengage it from the anti-reversal gear on the bevel gear.
Method 5: Re-Shim the Gearbox
Ensure that all gears are meshing properly and have minimal play while being able to spin freely. If you are unsure about shimming, it is recommended to seek assistance from a technician.
It is important to note that attempting to fix your airsoft gun may void its warranty. Always refer to your gun's instruction manual before attempting any repairs or adjustments.
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Fixing a safety latch issue
If your electric airsoft gun is not working properly, there could be an issue with the safety latch. Here are some troubleshooting tips to help you fix this issue:
First, check if your gun is on semi-automatic mode. If it is, the issue could be that the safety latch is engaged. To resolve this, you will need to slightly expose the lower section of the gearbox. Once exposed, use a thin, sturdy, pick-like rod to gently pry or push the anti-reversal (AR) latch to the side or up. This will allow you to disengage the AR latch from the bevel gear. Be cautious when performing this step, especially if your gearbox uses strong springs (2 Joules or higher), as there is a risk of breaking the anti-reversal latch due to the higher stress on the gearbox.
If you are unable to access the AR latch, the next step is to open the gearbox and reset all components to their relaxed positions.
Another potential issue could be that the reversal gear is not being engaged by the AR latch on the bevel. This can cause the motor and gears to torque backwards, leading to additional problems. To fix this, start by identifying the cause of the issue. It could be due to a simple reason, such as a spring that has come off or is broken, or it may be due to incorrect installation or breakage of the AR latch. If these are not the causes, you may need to shim up the reversal latch to ensure proper engagement with the bevel gear. However, modifications like shimming are generally recommended when installing new parts.
If your gun does not fire when wired up, the issue could be related to the cut-off lever. The cut-off lever is responsible for resetting the trigger shuttle after a semi-auto cycle. If the cycle does not complete, the lever can get stuck against the trigger shuttle, resulting in a non-responsive trigger. To resolve this, switch your gun to full auto, which will manually move the cut-off lever and allow the trigger shuttle to reset, unlocking the gearbox.
It is important to note that disassembling your airsoft gun may void the warranty. Always refer to your gun's instruction manual for specific guidelines and safety precautions.
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Fixing a cut-off lever issue
If you are experiencing issues with the cut-off lever of your electric airsoft gun, there are several potential fixes you can attempt. One issue could be that the cut-off lever is too thick or high, preventing the trolley from cutting off properly. To rectify this, you can carefully shave down the protruding mound on the cut-off lever screw hole, ensuring it is completely flush with the surrounding edges. Be cautious not to drill too much, as this may hinder the free movement of the lever. The goal is to slightly lower the position of the cut-off lever.
Another potential issue could be related to the trigger shuttle and cut-off lever interaction. The cut-off lever might not be engaging properly with the shuttle. Check the tension on the shuttle return spring and ensure it is stretched enough to lift the cut-off lever. Additionally, inspect the safety bar; if it is too long, the trigger may be hitting it before achieving full travel.
In some cases, the cut-off lever may be stuck or not making proper contact with the sector gear. This could be due to a weak selector spring, an issue with sector gear timing, or another trigger unit problem. Try experimenting with different cut-off levers and trigger units to identify the source of the problem. You can also try adding a washer or shim under the cut-off lever to raise it slightly, but be mindful of the necessary clearance for the spring on the outside of the gearbox.
If your gun operates well in semi-auto mode but encounters issues in full auto, it could be related to the cut-off lever not being pushed down fast or hard enough after being engaged by the sector gear. In this case, consider trying a longer spring, such as one from a Bic lighter, to see if it improves the issue.
Additionally, you can try modifying the cut-off lever itself. Trim the part where it pulls the contact sled back, but exercise caution and only modify it slightly at a time, testing after each adjustment to avoid over-trimming.
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Frequently asked questions
If your gun is wired up fine, you are most likely dealing with a simple mechanical problem, not an electrical one. Try manually firing the gun with the gearbox open. If this doesn't work, the problem may be with the motor height alignment or inside the gearbox.
If adjusting the motor height does not work, the problem is likely inside the gearbox. Seek professional assistance or continue at your own risk.
Possible issues include a blown fuse, a break in connection at the motor, or broken trigger contacts. Try replacing the fuse with another fuse with a 20-40 AMP rating or bypassing the fuse to confirm the issue. Check that the red (+) and black (-) wires are firmly connected to the motor.
Hold down the release valve on the magazine and run gas through it for about 2-3 seconds.
