Hi Guys,
Great to see the abundant wealth of knowledge you all provide, I'm glad to be a part of it. Very Happy
Have a hydraulic problem with a JD410 backhoe. All systems, (4in1, bucket lift, hoe and stabilisers) are ultra slow (bucket lift being the worst). Can get all bar the lift and bucket tilt to full speed and power after cycling through full range of movement a few times. Sometimes the lift and tilt resolve themselves, but all lose speed and power after approx 10 minutes. once this occurs can only get 6-8inches of lift in bucket lift and tilt up rams.
Machine recently blew a hyd line which drained the whole system. Filters and oil replaced and strainers where cleaned. Machine operated perfectly for approx 120min after service.
Intial thoughts were low oil (guys who did the flter and oil replacement had overfilled by approx 40litres!! have drained off enough so level is just under max. But still as above.drained the oil via the hyd pump return line to ensure pump still working.
Power steering has never had the above problems.
Any ideas from the brains trust out there.
No Hydraulic power
- tuney443
- 440 crawler
- Posts: 155
- Joined: Fri Apr 25, 2008 10:28 pm
- Location: Poughkeepsie,NY
- Contact:
Well,you said that the pump was pushing oil out but to fully determine if it's truly working correctly you would have to put a gauge on her.How long did she run without oil when the hose burst?
Found the skull to the mastodon in Hyde Park, youngest one ever found so far in the world in 2000.
JD35D midi exc.
JD410G TLB
JD450D Dozer
2 JD 440 track loaders
JD 420 track loader
JD 450C track loader
JD35D midi exc.
JD410G TLB
JD450D Dozer
2 JD 440 track loaders
JD 420 track loader
JD 450C track loader
- Willyr
- 2010 crawler
- Posts: 695
- Joined: Sat Jul 17, 2010 3:03 am
- Location: Downeast Maine (North of Ellsworth)
Power steering is usually a seperate circuit and not on same hydraulics. Check the hydraulic level. You may have pumped it dry putting the oil back in the new system. Or pumped it down enough it needs more.
former owner of a 1956 420c
All help is greatly appreciated.
Proud owner of a project 1952 JD 60
http://www.youtube.com/watch?v=nFehqXVd9z4
All help is greatly appreciated.
Proud owner of a project 1952 JD 60
http://www.youtube.com/watch?v=nFehqXVd9z4
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