power steering valve/ orbital valve 1390 noisey

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poitch
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Location: ireland

power steering valve/ orbital valve 1390 noisey

Post by poitch » Thu Dec 19, 2013 1:03 am

Hi All could do with a bit of help. Just bought a 1390 and have changed the power steering fluid. There is a noise coming from the power steering valve when driven on the road it was there before the fluid change. It is quiet when going in a straight line ie no inputs from the steering wheel and also on low revs. is there a fix for these units ie a refurb kit or anything i can do?. Also if i push the steering wheel away from me hard it lessens the noise. Any help would be appreciated. Thanks john

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poitch
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RE: power steering valve/ orbital valve 1390 noisey

Post by poitch » Thu Dec 19, 2013 1:18 am

Sorry also should have mentioned that I used power steering or ATF fluid to refill. is this the right stuff to use here or should I have used something else?. Not up to speed on these tractors yet more of a car person.

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ollek
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RE: power steering valve/ orbital valve 1390 noisey

Post by ollek » Thu Dec 19, 2013 6:37 am

The noise can be normal. Contributing to this kind of noise (only when steering) is the steering hoses and pipes. If any of these is in tight contact with the cab, the vibration from system can result in noise. Regarding the oil used I am not going to say anything. There is always someone who knows better.

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poitch
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RE: power steering valve/ orbital valve 1390 noisey

Post by poitch » Thu Dec 19, 2013 4:34 pm

Cheers Ollek will check out the pipework. AS for the correct oil to use anyone got any ideas. would a thicker viscosity oil help reduce the noise or would it put the pump under too much load?.

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ollek
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RE: power steering valve/ orbital valve 1390 noisey

Post by ollek » Thu Dec 19, 2013 5:21 pm

Please e informed that it is normal for the hydrostatic steering to give a "hissing" noise when you turn the steering wheel. You can not affect the noise by changing the oil to an other quality.

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poitch
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RE: power steering valve/ orbital valve 1390 noisey

Post by poitch » Thu Dec 19, 2013 6:17 pm

Its not a hissing noise like you would expect its a grumbling, graunchy noise. If there is play in the pump or orbital valve then a thick oil might help take up some of the slack between the gears of the pump if it is the pump. Having read back on this site people have used everything from engine oil to hydraulic oil in their set ups. I was just wondering if anyone has managed to rid the system of this noise without spending a fortune on new pumps etc?.

John_Allen
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RE: power steering valve/ orbital valve 1390 noisey

Post by John_Allen » Thu Dec 19, 2013 6:45 pm

In Moderator mode:

Please let's not mention oil again.

Thank you.

Guest

RE: power steering valve/ orbital valve 1390 noisey

Post by Guest » Thu Dec 19, 2013 6:47 pm

Putting a thicker grade oil in the reservoir would not alleviate or improve the problem, it would in fact make it worse, you should use the recommended oil which is ATF or a 32 grade hydraulic oil, no combinations either otherwise it will foam. The grumbling you have could be caused by, the incorrect oil, splines on the bottom of the steering column shaft worn or the orbital unit, kinked oil pipe or a faulty valve in the rear of the steering ram. Lastly, if the oil was very low and you've had to put more in there may be air in the system.

John_Allen
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RE: power steering valve/ orbital valve 1390 noisey

Post by John_Allen » Thu Dec 19, 2013 7:20 pm

STILL in moderator mode

Please read my previous post!!


jazo
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Location: New Zealand

RE: power steering valve/ orbital valve 1390 noisey

Post by jazo » Fri Dec 20, 2013 2:02 am

Did you change the filter inside pump reservoir? on the 94 series they moved the steering valve outside the cab which helps
1394 4wd
1294 4wd
30D
990x2
880
780x2
900

johno
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RE: power steering valve/ orbital valve 1390 noisey

Post by johno » Sun Dec 22, 2013 4:19 pm

Hi poitch my 1494 does exactly the same and if i push on steering it lessons the noise ive changed the oil and checked the pipes and its still the same ,i think its something you got to live with ,but it does get on yuor nerves on a long road trip

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ollek
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RE: power steering valve/ orbital valve 1390 noisey

Post by ollek » Sun Dec 22, 2013 5:42 pm

If the shaft from the steering wheel is bottoming out in the orbitrol unite, you will have some noise as the vibrations from the orbitrol valve gets into the steering column and from there into the drivers ears. But, as johno said, this steering is not very quiet, so sometimes it does not pay off trying to get it quiet.

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poitch
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RE: power steering valve/ orbital valve 1390 noisey

Post by poitch » Sun Dec 29, 2013 5:00 pm

cheers for the advice lads I have to park her up for some brake issues so I will have a better root around and see what I come up with.

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geoff_52
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Post by geoff_52 » Mon Dec 30, 2013 12:38 am

I had this noise problem with my 1690,when steering the tractor the noise went away, let go of the steering wheel and it came back I found the problem, It was one of the hydraulic steering pipes which pass through the cab had been rubbing on the metalwork as it went through the cutout hole, It had rubbed the rubber off the pipe down to the braided wire so when the pipe vibrated it sent a whine and buzzing noise up the dash, hope this helps Geoff.

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