experience captivation/cavitation when dumping heavy material

[alltherage]

Have any of you experienced this with the cub yanmars? When I curl to dump dirt its fine, but when dumping heavy stone the bucket will start curling down and then stop for a couple seconds and then resume. I don't have any problem lifting. I've read about it and its called captivation or cavitation (can't seem to get a straight answer) and essentially involves fluid not catching up in time to the bucket movement caused by heavy loads. Is this normal for these tractors??....running at higher rpm does help but doesn't eliminate.

 

[jkuipers]

It is cavitation. Essentially air getting trapped in the oil. Doesn't
Sound like a huge problem.