Both the Rover Pro and Rover Zero drive use drive gears with shear pins that are designed to fail before causing damage to the internals of the robot. If those shear pins fail, this article will walk you through how to replace them.
Below is a pictures of what a Final stage gear looks like out side of a robot. The six vertical pins you see are the 6 shear pins.
Its important to note that improperly installing the wheels can cause the shear pins to fail prematurely. When a wheel is properly put on you should not be able to see more that 1mm of the shear pins. Below is an example of being able to see far to much of the shear pins.
The following video show you how to access the final stage gear to replace them.
Here is a list of all the parts and tools needed for this repair
|Part Name||Link||Applicable Product Line|
|Final Stage Gear||https://roverrobotics.com/products/final-stage-gear-1||Rover Pro and Rover Zero|
|Snap Ring Pliers||https://roverrobotics.com/products/snap-ring-pliers||Rover Pro and Rover Zero|
|Snap Rings||https://roverrobotics.com/products/snap-ring||Rover Pro and Rover Zero|
|Grease (optional but recommended)||https://www.exxonmobil.com/en-us/aviation/pds/gl-xx-mobil-aviation-grease-shc-100||Rover Pro and Rover Zero|
|7mm Nut Driver||Amazon Link||Rover Pro only|