XM203 Troubleshooting
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If you're experiencing issues with your XM203, RDX is here to support you. We offer a support forum, accessible at this link: RDX SUPPORT FORUM, where you can find suggestions and solutions for fixing the unit. However, if you're unable to resolve the issue, please submit a support ticket, and we will assist you in getting back up and running.
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Finding the Trigger Signal.
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Finding a suitable trigger signal can be tricky on newer FCU or MOSFET boards. On a standard AEG, you would simply connect the white signal cable to the output (the side that is normally off) of the trigger. However, FCUs and MOSFETs have many advantages, and we recommend them over a standard trigger configuration. The issue is that the trigger signal now becomes more complicated to find.
To address this, the XM203 has a feature called "Test Mode." It allows you to test various FCU outputs to determine if a suitable XM203 trigger input can be found. How does it work?In "Test Mode," the XM203 is no longer "Live." It will not fire when a trigger signal is received. Instead, the LED will flash orange every time a trigger signal is received. This will let you know if the white trigger signal cable is in the correct and optimal position.
The white signal cable is an "Input" only and does not emit a voltage. It does, however, require a voltage greater than 2 VDC to activate. It uses voltage as a detection method, not current. Please note: When powering up a gun with an FCU that has active braking or motor alignment, this can activate the XM203. To overcome this issue, RDX recommends placing the XM203 in "Start Silent Mode." This way, the XM203 will not fire when power is added, and it becomes LIVE only when the UP or DOWN key is tapped. Refer to the Firmware Manual for these features and more. |
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Gas Types and Filling the XM203
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USE THE FOLLOWING GASES ONLY
DO NOT USE THE FOLLOWING:
MAPP Gas is preferred, particularly in cold conditions (Less then 5°c) as it does not turn to liquid which will upset the gas to air ratio.
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Not all fill adaptors are equal
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Not all propane adapters are created equal.
Over the years, we've observed that some adapters perform better than others. This is important because efficient liquid gas transfer is key to ensuring you have 1,000+ rounds in the tank.
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Gas Adjustment
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This is probably the most important aspect of understanding the XM203 and how gas impacts the unit's performance.
Please watch the following video to understand the "GAS ADJ" dial and how it influences the XM203. Note: Not all units are the same, so a 5 on the adjust dial does not mean it is running at 100% efficiency. This will need to be altered depending on the environmental conditions and the unit itself. It cannot be compared to another unit gas adjustment setting. |
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lubricated Me! Clean Me!
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Each time you take the XM203 gaming, ensure the indicated areas are properly oiled or lubricated. Neglecting this maintenance can reduce the performance of the XM203 and may eventually cause damage to the rear firing seal.
What oil to use?
We have found that standard silicone oil tends to burn off quickly and does not last as long as other oils. Therefore, while silicone oil can be used on the firing sleeve and cylinder, we recommend using a more heavy-duty oil for the rear seal.
RDX recommends Breakthrough Battle Born High-Purity Oil. Please ensure that the oil is non-flammable, non-toxic, and safe for use with silicone and NBR (nitrile rubber) seals and O-rings. Clean me.Ensure the areas where oil is applied are regularly checked and cleaned of dirt and grime. While the system can withstand significant exposure to dust and debris, it’s a good idea to periodically inspect and clean it to maintain reliability and prevent damage to the rear seal.
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