Great question. What you will want to do is create a new rule for that user you want to have able to perform the reload task. Have a look at the AppAdminModify example on this page.
Keep in mind, you can provide access to the QMC Sections for the tasks and make it so that the user only sees the tasks they own. So you could create the task and make them an owner and then when they go to the QMC they see their tasks.
Example of that is on the same page above but the section labeled AppAdminQMCSections.