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JD400 Slow Hydraulics

2K views 5 replies 2 participants last post by  Tx Jim 
#1 ·
Hi All,
I hope everyone had a lovely Christmas. My 1970/71 JD400 has very poor back hoe and front bucket hydraulic operations and even the steering is 'how's your mum' when operating the bucket. I believe the issue started to occur after I replaced the filters. I don't have any manuals (Which I'll go to the local JD dealer once open and get them) and have read similar issues (See post below) however, my knowledge on the hydraulic operating system is not as good as I'd like. Can anyone offer some simple initial checks/guidance to get me on the right track to fix this . Thank you.

JD 410 Backhoe slow hydraulics | Tractor Forum
 
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