ARSYSPIN is a started task.
This means, you can bring it down and keep it down with automation and restart it as well when you need to.
Typically, when we do maintenance, we bring down ARSYSPIN [and ARSLOAD]. And when maintenance is completed, we start the tasks again. All via automation.
You need to start talking with your mainframe automation team as well as z/OS Systems Programmers for how this can be achieved with the tools available in your shop.
I hope this helps,
Mehmet