Jim,
I have had a look at the manual to refresh my memory.
[ATTACH]17221[/ATTACH]
Unlock the cap screw H, and move the bearing and shaft backwards out the road.
Unlock the cap screws C and move the guide pins to the sides, out the road.
Unlock the cap screw E and move the guide black backwards out the road.
This should clear all the obstacles on the top and the blade should run freely.
This should only take a couple of minutes and gives me time to create the second bit of the set up.
take care
Don W