Hey Skooter, thank you for your reply! I totally agree, as is it is not uncommon to ceiling mount robots.
I did not use the bags at all, which now that I think about it, would maybe prevent the large amounts of grease being expelled. On Friday before leaving work I bored a 6mm hole through a spare M12 bolt which I screwed into the vent before running my "pressure release program". This time only a "normal" amount of grease were expelled from the now smaller vent, no excessive amounts were slinged out. By common sense I feel that the specified procedure for pressure release are quite exaggerated.
My program runs all joints back and forth in a 90deg range at 50% OVR 25 times. That should be more than enough to move the grease around the gearbox and expell trapped air from the grease bath.
The instructions were quite overwhelming at first, and the thought of hand pumping these amounts of grease gave me the chills, as we have six of these robots. I instead decided to fit a pneumatic barrel pump with a pressure gauge at the outlet and a pressure regulator to control the strokes of the pump. This were a bit tedious for a few joints, but overall it worked quite well.
