We have two feeders (both on Citizen M20's) - IEMCA Genius 120 with 24mm channels running 1/4" bar stock. And an Edge C-320 with 20mm channels running 3/8" and 1/2" stock. The IEMCA specifies 32wt oil, while the Edge specifies much more viscous 100wt.
We get vibration inside the IEMCA feeder over about 3,000rpm which is super annoying. Alignment is good. I'd like to switch oil to 100wt to see if we can boost that rpm without vibration. The only thing the IEMCA phone tech questioned is whether this could hurt the hydraulic pump.
Does anyone have experience with playing with the oil in their feeder? New channels I'm sure would help this but the unit uses cast iron channels and they're about $8,000 to replace, so we've been told. And that's just not in the budget right now.
Any and all thoughts would be very much appreciated.