After your Dynamics CRM 2013 organization is upgraded to SP1/Spring ’14 update, and you install product updates in the Settings–>Administration area, you should see a new link called “Service Management” in the Settings area.
If you don’t see this link after you install the product updates, clear your browser cache or click CTRL+F5
If after that you still don’t see it, you can manually add the link to the settings area by exporting the sitemap and adding the following subarea to the settings area:
<SubArea Id="nav_servicemanagement" ResourceId="Homepage_ServiceManagement" DescriptionResourceId="ServiceManagement_SubArea_Description" Url="/tools/servicemanagement/servicemanagement.aspx" AvailableOffline="false" />
If you are missing other links that are new in CRM 2013, you can learn how to add these areas here.