> For the complete documentation index, see [llms.txt](https://docs.revrobotics.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.revrobotics.com/duo-build/motion/motors/hd-hex-motor/pinion-removal-guide.md).

# Pinion Removal Guide

### HD Hex Pinion Pressing Guide

#### Needed Materials:

* HD Hex Motor (REV-41-1291) With Pinion Pressed On
* A Small Flathead Screwdriver
* Hex Shaft For Leverage (or similar)

<figure><img src="https://756878072-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FH9K1InCLC1ZxIkdPJt31%2Fuploads%2FKwAOcjzkIApi86vzxymg%2FNeeded%20Matrials.jpg?alt=media&amp;token=a0a2db5b-61b5-4fa4-8895-89cdcb4ef2e7" alt=""><figcaption></figcaption></figure>

| 1) Using a small flathead screwdriver, pry up on the base of the pinion.                                                                          | ![](https://756878072-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FH9K1InCLC1ZxIkdPJt31%2Fuploads%2FPlJhJwJd2mODAt9nvR64%2FPry%20Up%20On%20Pinion.jpg?alt=media\&token=80eb9c75-5aa4-432c-aa9e-4962c557eaf5)    |
| ------------------------------------------------------------------------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| 2) Once the pinion has been moved enough, you may need to add a Hex Shaft or similar to give you enough leverage to completely remove the pinion. | ![](https://756878072-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FH9K1InCLC1ZxIkdPJt31%2Fuploads%2FL1S6iw1av9G2iERCSHpK%2FUse%20Bar%20as%20Leverage.jpg?alt=media\&token=a8a146d3-88f8-4024-ba2f-cf4884019e63) |