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Old 09-05-2009, 07:56 PM   #1
kaptain krunch
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Default Pulling a tractor with a hydrostatic transmission, bad?

I read that pulling a tractor with a hydrostatic transmission, could ruin the hydro. Is there any truth to this?
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Old 09-05-2009, 08:01 PM   #2
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Default Re: Pulling a tractor with a hydrostatic transmission, bad?

you cna pull the bypass lever and pull it to get it back to the shop. but i would not recommend pulling one several miles, bypass or not.
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Old 09-06-2009, 02:18 AM   #3
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Default Re: Pulling a tractor with a hydrostatic transmission, bad?

Thats what we were told on the farm.
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Old 09-06-2009, 02:55 AM   #4
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Default Re: Pulling a tractor with a hydrostatic transmission, bad?

If you pull a hydrostatic tractor without engaging the by-pass or shifting the two speed rear axle into neutral (if equiped), you in effect are trying to run the hydraulic system backwards and the oil tries to go the wrong way through the hydraulic motor and pumps which effectively become check valves stopping the flow. Net result is very high pressure in parts of the case designed for low or zero pressure. You are trying to turn the tires against a very high ratio reduction unit with a lock on the other end.

Comparable scenario in automotive terms, pull a manual shift four wheel drive truck with the transmission in bull low, the transfer case in four wheel drive, low range and a large V-8 engine.

Bottom line, hydro is ruined because the case is broke, and so are you when you buy the replacement.

Bob

Last edited by TUDOR; 09-06-2009 at 03:14 AM. Reason: Addition
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Old 09-06-2009, 07:52 AM   #5
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Default Re: Pulling a tractor with a hydrostatic transmission, bad?

Local Public works department towed a Wheelhorse with a hydro down main street with a truck. The pump exploded and damaged a few cars parked along the street. Stated they where only doing 25 mph!
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Old 09-06-2009, 08:11 AM   #6
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Default Re: Pulling a tractor with a hydrostatic transmission, bad?

Where does one find the by-pass on a 1973 bolens h16, I haven't found one ,and you can't shift them into neutral either.


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Old 09-06-2009, 09:19 AM   #7
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Default Re: Pulling a tractor with a hydrostatic transmission, bad?

Quote:
Originally Posted by Artpb View Post
Local Public works department towed a Wheelhorse with a hydro down main street with a truck. The pump exploded and damaged a few cars parked along the street. Stated they where only doing 25 mph!

Well that's just pure stupid. Gov. employees.

Scott
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Old 09-06-2009, 09:29 AM   #8
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Default Re: Pulling a tractor with a hydrostatic transmission, bad?

Quote:
Originally Posted by m.jodrey View Post
Where does one find the by-pass on a 1973 bolens h16, I haven't found one ,and you can't shift them into neutral either.


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Old 09-06-2009, 09:58 AM   #9
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Default Re: Pulling a tractor with a hydrostatic transmission, bad?

Your H-16 does not have a by-pass valve. If you must tow it , try releasing the idler for the drive belts or as I was told, disconnect the drive shaft. You do not want to tow the tractor any faster than about 2 miles an hour. Any faster will damage the hydrostat pump and motor.
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Old 09-06-2009, 01:49 PM   #10
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Default Re: Pulling a tractor with a hydrostatic transmission, bad?

No by-pass? Jack it up and put a set of dollies under it, like the tow trucks use. Or a 'P' handle furniture dolly hooked on the draw bar. Just get the back wheels off the ground.

How far do you have to pull it? (See post #4.)

Bob
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Old 09-06-2009, 02:33 PM   #11
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Default Re: Pulling a tractor with a hydrostatic transmission, bad?

I just pulled my wheel horse out of the mud three times, just eased the hydro handle into reverse then pulled with outer tractor. When I got it out it wasn't pulling enough to run over me and other tractor.
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Old 09-06-2009, 07:23 PM   #12
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Default Re: Pulling a tractor with a hydrostatic transmission, bad?

Not that I have to tow mine , but I like the wheels dolly idea.Thanks guys.


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Old 09-06-2009, 07:29 PM   #13
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Default Re: Pulling a tractor with a hydrostatic transmission, bad?

Here you go.

Tow Dolly
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Old 09-11-2009, 12:27 PM   #14
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Default Re: Pulling a tractor with a hydrostatic transmission, bad?

LOL !! I thought he was talkin' about using a Hydro for a "Pullin' Tractor" ... My nephews, who are into pullin' garden tractors, says a hydo won't work for a puller ... Seems to me it would be but I don't really know .. Anybody know of any hydro pullers ???
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Old 09-11-2009, 04:05 PM   #15
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Default Re: Pulling a tractor with a hydrostatic transmission, bad?

yea i thought thats what he meant at first too...anyways yea i think i have heard of hydro pullin tractors but i think the standard trans would do alot better.
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