# FAQ & Trouble Shooting

## Common Questions

<mark style="color:blue;">**Q: What PSI should I run the piston at?**</mark>

A: 60 PSI

<mark style="color:blue;">**Q: What stage can I put the brake on?**</mark>

A: Any stage or position on the robot, but we recommend the first stage or the closest to the motor as possible. The results will be much better.

<mark style="color:blue;">**Q: What is the holding force of the brake?**</mark>

A: The WCP Friction Brake with the WCP Brake Pad can support 1.5 ft lbs by itself at 60 PSI. The max/min that we have recorded in testing has been 1-2 ft lbs. These values are recorded at the brake and without a motor attached. Adding a motor in brake mode will increase these values.

## Common Issues

<mark style="color:blue;">**Issue: Brake does not disengage.**</mark>

Possible Solutions:

* Check that the shoulder bolt attaching the cone to the piston is threaded all the way in.
* Check the air pressure for the piston. If it is too low, the piston will struggle to disengage.


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