Whiny Hydrostat after fluid change: Diesel Fuel Lubrication Engine Additives  -- Tractor Maintenance Discussion Forum and Review Whiny Hydrostat after fluid change: Diesel Fuel Lubrication Engine Additives -- Tractor Maintenance Discussion Forum

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 11-12-2003, 15:46 Post: 68588
a2hockeydad



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 Whiny Hydrostat after fluid change

I just changed my hydro fluid and now my tranny is extremly noisy. I went the cheap route and picked up 10gal at Sams club. It stated on the bucket that it met the NH
spec that was listed in my manual. I changed the fluid and both hydro filters and now it whines more than two year old at the cash register. The TC29D takes almost 9 gal of hydro fluid, can someone recomend a synthetic fluid that will make me a happy camper again? Please help longtime reader few time poster.






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 11-12-2003, 16:21 Post: 68592
Art White



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 Whiny Hydrostat after fluid change

I have often stated that I believe that the low hours of use often make the syntetic oils extremely expensive as you are taking out oil that is not bad from use but from age and the moisture from condinsation.






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 11-12-2003, 16:55 Post: 68599
blizzard



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 Whiny Hydrostat after fluid change

May be some air in the system. Does your reservoir supply the power steering and FEL/3PH too? You may have to cycle the steering/FEL and 3PH completely several times, check fluid level to make sure it is to mfg. specs. If there are a lot of bubbles on the stick you almost certainly have air trapped in the system.
Hope this helps,
bliz






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 11-12-2003, 17:52 Post: 68601
DRankin



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 Whiny Hydrostat after fluid change

I only know of two synthetic HST fluids on the market and would only use one of them.

The first is Chevron All Weather. I would be happy to E-mail the spec sheet to you.

The other is Amsoil. Hold onto your wallet if you look it up.






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 11-13-2003, 08:53 Post: 68629
TomG

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 Whiny Hydrostat after fluid change

I wonder if it whines at idle, in general or only under heavy loads. HST relief valves do open under heavy loads and there's a chance that a different oil might change where the relief valve opens a bit.

Another possibility is that a cheap route also included cheap on the filters and they weren't an adequate cross-reference. A filter with inadequate flow may act like a suction line obstruction and cause pump cavitation. I haven't experienced it myself as far as I know but cavitation often sounds more like a rattle while relief valves sound more like whines.

There's a chance the whine could be a normal sound but the problem should be sorted out if there's a chance that it's a relief valve or pump cavitation under normal operating conditions. I'd get a read on the sound from somebody who would recognize normal from abnormal sounds for the tractor. If it's normal and I just didn't like the sound I'd be tempted to go back to factory everything and look for somebody who does their own undercoating who might be happy for the barely used oil.






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 11-13-2003, 12:01 Post: 68659
a2hockeydad



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 Whiny Hydrostat after fluid change

I only went cheap on the fluid.Hydro fluid is fluid right? The filters were new holland overpriced filters. Does anyone know of acceptable cross referenced filters for the TC29D?






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 11-13-2003, 12:15 Post: 68664
Murf

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 Whiny Hydrostat after fluid change

"Hydro fluid is fluid right?"

Yes it is, presuming it all meets the required spec.'s.

However, each fluid manufacturer also has there own 'secret recipe' of additives that they include as well.

Yours would not be the first 'finicky' machine I have encountered over the years.

The six speed tranny in my Ford truck is supposed to be filled with Mercon ATF according to the manufacturer, when I changed the fluid in it I used Shell's equivalent. It immediately starting making different sounds than it had made since new. I drained it and refilled it with the Amsoil synthetic equivalent, no it doesn't make any sounds at all. Go figure.

Best of luck.






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 11-13-2003, 12:30 Post: 68668
bobfromny



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 Whiny Hydrostat after fluid change

I just changed my entire TC33D over to Amsoil Synthetic. I am absolutely thrilled. Mine has 50 hours on it since others in the forum suggested I wait for the engine to break in. A friend of mine also did his and is very happy. It was not cheap but it took all the whine out of the hydraulics, tranny and power steering. All you hear now is the engine running. I know it is expensive, but I figured with $20K invested in a tractor and implements, $200-$300 to change it all over to Amsoil was well worth it. Plus I live in cold weather so the hydro will be better in the winter.

Bob






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 11-15-2003, 05:47 Post: 68803
austros



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 Whiny Hydrostat after fluid change

Why risk any problems with a new machine that's under warranty and give the dealer the chance not to help you out if there is a problem later. The couple extra bucks spent on the dealer parts are not going to be that much. In fact my green dealer gave me a deal by buying the filters and fluid in bulk, so I stocked up for the parts needed for the first two years. Proper maintenance and service will make your machine last and give good value for many years. You know best how to fill your needs. Hope it works out for you.






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 11-25-2003, 22:45 Post: 69646
Chief



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 Whiny Hydrostat after fluid change

a2hockeydad, what was the final call on the whining hydro? Did you get the problem fixed?






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Discussion Boards > Active Subjects > Messages as Posted > Diesel Fuel Lubrication Engine Additives Forum

Thread 68588 Filter by Poster:
a2hockeydad 2 | Art White 1 | austros 1 | blizzard 1 | bobfromny 1 | Chief 3 | DRankin 1 | Murf 1 | Paul 1 | TomG 1 |




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