hydraulic noises

[shadowm77]

hi all i just got a new 1533 with the dl120 loader and whe i roll the bucket it makes a noise like the bucket has no grease if you do it slow it makes no noise if you speed it up it makes noise it sounds like like the pump is trying to pump to much fluid through metal lines along yhe buckek arm and today i was trying the bucket and once it even started to i`ll call it bucking any one had this trouble any info would be great thanks in advance