l w 6 cylinder not work
circlediron
Join Date: Jul 2009 Posts: 35 Noxapater, MS |
2011-11-13 181186
I own an L W-6 backhoe. Everything works well until the hydraulic fluid gets hot at which time one cylinder becomes very slow and will barely pick up the boom. Is it the fluid getting hot or the cylinder leaking passed the packing?
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l w 6 cylinder not work
greg_g
Join Date: Jan 2004 Posts: 1816 Western Kentucky Pics |
2011-11-14 181194
Might be both. Since it doesn't happen right away, the cylinder seals might be marginal until the fluid thins out, then starts to bypass. You can get cylinder rebuild kits at most Chinese tractor dealers, and most of them have an online presence. Second, if you're still using the original Chinese fluid, it's crap. Flush it out of the whole system, and replace it with hydraulic fluid appropriate to your working conditions.
//greg// ....
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l w 6 cylinder not work
circlediron
Join Date: Jul 2009 Posts: 35 Noxapater, MS |
2011-11-14 181197
how do you suggest to flush old fluid from unit? What type fluid do you suggest?
Thanks verry much. ....
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l w 6 cylinder not work
hardwood
Join Date: Dec 2002 Posts: 3583 iowa |
2011-11-14 181200
It's all but impossible to get a 100% fluid change, there is always some left in hoses and cylinders, etc.
It would be possible to get more old fluid out by disconnecting hoses from cylinders and letting gravity take out what will run or maybe by using a bit of air pressure to help push the old stuff out. How ever you would do some of these things you will never get 100%, and I guarantee you will be an oily mess before you are done.
Just drain the reservoir according to your owners manual, change the filter or filters and refill.
Frank. ....
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l w 6 cylinder not work
greg_g
Join Date: Jan 2004 Posts: 1816 Western Kentucky Pics |
2011-11-14 181201
Whereas the previous advice is well-intentioned, it doesn't take into consideration how new Chinese equipment is shipped. At the factory they're filled with whatever the cheapest used fluids available when they're pushed out the door. I've seen what should have been hydraulic fluid ooze green slimy stuff. Clearly it was water-laden, might even have been WVO. Ethical US dealers flush & fill with new as part of the dealer prep. Self-importers should do the same before first use. If you've been using the hoe with the original fluid, it likely led to the current issue
//greg// ....
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l w 6 cylinder not work
greg_g
Join Date: Jan 2004 Posts: 1816 Western Kentucky Pics |
2011-11-14 181206
Whereas the previous advice is well-intentioned, it doesn't take into consideration how new Chinese equipment is shipped. At the factory they're filled with whatever the cheapest used fluids available when they're pushed out the door. I've seen what should have been hydraulic fluid ooze green slimy stuff. Clearly it was water-laden, might even have been WVO. Ethical US dealers flush & fill with new as part of the dealer prep. Self-importers should do the same before first use. If you've been using the hoe with the original fluid, it likely led to the current issue
And I mean a GOOD flush. Water and slime left behind will just recontaminate the fresh fluid. I drain out all the old crap, then refill with kerosene. Overfill to get the hard-to-get stuff. Run the tractor and exercise the hoe on kerosene. Drain thru screen or cheesecloth if it looks like more flushing is called for. Once clean, you can remove the QD hose ends and drain them as well.
As far as what to refill it with, I need to know where you live.
//greg//
....
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l w 6 cylinder not work
circlediron
Join Date: Jul 2009 Posts: 35 Noxapater, MS |
2011-11-14 181215
I live in Mississippi. What type hyd fluid you suggest? ....
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l w 6 cylinder not work
greg_g
Join Date: Jan 2004 Posts: 1816 Western Kentucky Pics |
2011-11-14 181218
I'd saw AW46 should work just fine there. It's approximately a 20W equivalent. I used AW32 up here in western KY, cuz AW46 got just a little thick come winter.
//greg// ....
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l w 6 cylinder not work
circlediron
Join Date: Jul 2009 Posts: 35 Noxapater, MS |
2011-11-15 181224
Thank you very much.
circlediron in mississippi ....
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