Rentthis has the answer, but curious why you are changing the fuel filter. Seems like you indicate this is not the first time.
I did change the fuel filter in my B2910 once over ten years ago, and that was after buying dirty off road fuel I am certain. After changing where I get my fuel I have not have had an issue since, in either of my tractors.
I concluded that in my case I would change the fuel filter only if there appeared to be a need, and do have a spare on hand, but have never needed it in actually probably 13 years...and probably 1500 or more hours on the B2910 since last changed.
Don’t know about the B2910 but my M4700 Maintenance Schedule calls for cleaning the fuel filter every 100 hrs and replacing it every 400 hrs.
It’s the owner’s decision as to whether or not to comply with those recommendations, of course.
When I did mine, the fuel shut-off valve/lever on the filter assy did not do it’s job. It made a mess, so I disconnected the inlet hose and took it apart.
With 500 hrs on the tractor, some previous person had apparently taken the thing apart before me.
The shut-off valve was mis-assembled with a spring-washer/shim improperly positioned. (There is no instruction manual for this detail but it was obvious when I examined it that it had been taken apart previously and put back together in the wrong sequence.)
I assembled it as I thought proper, and used JB Weld to seal the (leaking) exit-elbow that was only a press-fit by the factory.
Now the shut-off valve works properly and the filter-assy no longer leaks.