I was wondering if anyone can help me. I have a Bobcat 337 with 3500 hours on it. I noticed recently that after about 5-10 minutes of use when swinging to the right, the swing is slow and weak. Slewing to the left seems normal. If 11 rpm is what factory says it should do and I am getting only 7-8 rpm when swinging to the right. The swing is slower at full throttle than 1/2 to 3/4 throttle. The swing motor was leaking from the side and I had a seal replaced and that seems to be when the problem started. I replaced the swivel joint with a brand new one 200 hours ago so I don't think that should be an issue. It seems like it is not getting enough hydraulic flow to the swing motor. Every other function works perfectly with great power. Any input would be greatly appreciated. Thanks!