Thanks to Marnix Wolf for posting about the new SCOM R2 core management pack 6.1.7595.0 and that it has an important monitor turned off by default. You should turn this monitor on in order to monitor the service and if needed restart it as suggested by Marnix.
I also would not know why it is disabled by default, but perhaps this will be taken care of in a next version of this MP (or we will get an explanation :p
Thanks for your post Marnix!
Bob Cornelissen