The sand paper is provided is typically 180 grit and is free to use, if you require some other grit level, you can provide your own paper providing that you are sure to install the original paper when you are done your session. If you find that he paper provided is warn out or needs to be changed, you can put on the provided(under the sander) Roll. Please report that there is no longer a spare. Each roll of paper is about $12 so please attempt to leave the paper in good working order when you are done. You may need to clean the drum. If you find you can not clean the drum after your use, you may need to put on the spare roll and notify that you have done this in the #woodshop SLACK channel.
Do Not adjust the table adjustment Knob.
If you think the drum is out of alignment, please request alignment in the #woodshop SLACK channel
Manual
General info [Video]
Wrapping Abrasive and Stretching Paper Procedure [Video]