Where is the receiver dryer located?

I am attaching the info below that you requested. However, there is no process for the low side line. You simply disconnect it from both ends and then it comes out so they did not include this in the process. There is most likely a connection point prior to the evaporator but if not I included pictures of both points.

The process for the accumulator is attached as well. You will need to pull the system down into a vacuum and then recharge it so please refer to this guide for more help on this:

https://www.2carpros.com/articles/re-charge-an-air-conditioner-system

Please let us know if you have other questions. Thanks