> For the complete documentation index, see [llms.txt](https://docs.freeflysystems.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.freeflysystems.com/alta-x-gen2/maintenance/rails-and-isolator.md).
# Rails and Isolator
### Removing or replacing the rails and isolator
Alta X Gen2 comes with 12mm rails and the Smart Dovetail isolator. To remove them:
1. Place Alta X Gen2 upside down on a clean, flat surface.
2. Unplug the Smart Dovetail from Alta X Gen2’s IO panel. Grip the connector and depress the locking tab then gently unseat.
3. Loosen the red levers clamping the isolator to the rails.
4. Slide the isolator off of the rails or open the levers and rotate the isolator to remove it from the rails.
5. Loosen the red rail tube levers then slide out the rails.
6. Using a 2.5mm hex driver, remove the four M3x10 combo head screws attaching the rails to the bottom of Alta X Gen2.
**To reinstall the rails and/or isolator:**
1. Place Alta X Gen2 upside down on a clean, flat surface.
2. Attach the two rail adapters to the bottom chassis with 4x M3x10 combo head screws. Only loosely tighten these.
3. Open the locking levers on the adapters and slide in the two 12x500mm tubes. Sliding in the tubes will align the adapters to be parallel.
4. Tighten the four screws fully, then close the locking levers to clamp the tubes.
5. Slide on or set the isolator on the rails. Close the locking levers loosely to retain the isolator on the rail.
6. If you are using the default payload offset for Alta X Gen2, position the isolator with 110mm between the isolator and rail adapter clamps.
1. This ensures the best accuracy when mapping. If you have adjusted this for your application, mount the isolator accordingly.
7. When fully aligned, clamp the isolator fully onto the rails.
8. Plug in the Smart Dovetail cable into the Payload connector on the IO panel.
---
# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.
## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.
Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:
```
GET https://docs.freeflysystems.com/alta-x-gen2/maintenance/rails-and-isolator.md?ask=&goal=
```
`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.
Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.