Hydrofoamer - can't get impeller cover off

[rrhardy]

Any trick to removing the impeller cover from a Tunze Hyrofoamer? Soaking in vinegar - looks pretty clean, but only managed to rotate the cover maybe 1mm so far with a LOT of effort. Thanks for any recommendations! I am turning it counter-clockwise.

 

[rvitko]

I sympathize having just gone through the same thing for a walk in customer with a repair a couple weeks ago, I actually broke it before I managed to successfully remove it. They changed the oring due to complaints about bubbles seeping out of this part, they are now very tight. I can say DO NOT resort to tools, it will break, I broke the one here by using pliers. What finally worked was running it under hot water and using a syringe to dribble a small amount of glycerin into the space where the housings meet and then twisting hard. Cooking oil could also be used but clean everything well afterwards. If a few bubbles don't bother you, I would downsize the oring to a smaller diameter with one from a hardware store.

 

[rrhardy]

I did it! No tools, I did use hot water on the cover area, then used the plastic bit that the screw normally goes in to as a lever, gently but firmly and slowly turning the motor block with the plastic "lip" pressed against a wood cabinet - slowly the cover turned and then off it came! Thanks for the very quick reply and the sympathy!

 

[rvitko]

Thanks, I will try that trick next time. That is where I grabbed it with pliers and it snapped off.