860 hydraulics have slow internal leak

David Lewis · Jun 11, 2020

When I shut off my 860 engine, the 860 hydraulics slowly lower their load to the ground. No external leak, so it must be internal. I have replaced all the O rings in the accessory and transmission covers, and put a new O ring on the ram cylinder.
Where else could the slow leak be? Your experience is appreciated, thank you.

shaun wallace · Jun 11, 2020

All implements should be lowered to ground when not in use. Since all orings/seals been replaced the next place I would look is control valve. Over the years oil will wear the sharp edges of spool and bushing.

davidl1632 · Jun 11, 2020

Good idea, thanks Shaun. I'll check it out.

860 hydraulics have slow internal leak

David Lewis

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shaun wallace

Well-known Member

davidl1632

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