I have a older cat D3B Dozer I just replaced some hydraulic lines for my blade and I was running it today and after about 15min in my blade started to come up slow and it was jumping like it had air in the lines. It does the same thing when I try to tilt the blade rather way. My fluid level is good. Is there any other hydraulic filters on this Dozer other than the main one. Or if anyone has any ideas what it could be. None of my lines are leaking. I have no idea why the blade is acting like it doesn't want to move. I'd appreciate any help
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