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Farmall & IHC Tractors Discussion Forum
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please help, info on 350U loader drive train

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Joe n' CT

06-07-2004 05:10:20




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Is the IH 350 Utility tractor dual wheel drive? This is a 1957(?) 350 Utility with a "lord" front end loader with wide front wheels. Serial number 3688. Only my left rear wheel is driving or should I say "digging" There are two brake peddles which are currently locked together. Is this normal for this tractor?

While moving some dirt, the loader bucket stopped working. When the boom is raised, the bucket just droops. The bucket also seems to fold over on itself which it never did before. Would this be a sign of a blown hydraulic cylinder? If so, would both cylinders fail at the same time? There is good pressure to the cylinders. Thanks for any advice you can offer... Joe-

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Novel Idea Guy

06-07-2004 07:53:33




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 Re: please help, info on 350U loader drive train in reply to Joe n' CT, 06-07-2004 05:10:20  
Not trying to offend, but you should really get some training on how to properly operate a tractor before you cause further damage to the tractor, hurt yourself, or God forbid, someone else.

Like any other large vehicle, tractors have differentials in their drive axles. Differentials allow the wheels to turn at different speeds when the tractor is going around the corner. Otherwise you could not turn the tractor. The downside to this is that in a digging situation, the wheel with the least amount of traction is the one that will spin out first. Both wheels will never have the exact same amount of traction.

This is why tractors have two brake pedals. There's one for each wheel. When one wheel spins, you can tap the brake pedal on that side to make the other wheel spin. A skilled tractor operator can use the brakes to keep both wheels driving so the tractor doesn't spin out.

I guarantee that there is nothing wrong with the tractor. If something were broken in the drive to the right wheel, the tractor would not move at all.

The brake pedals should generally be locked together for driving down the road.

As far as the loader is concerned, it's highly unlikely that both cylinders would break simultaneously. The most likely culprit for your problem would be a blown hydraulic hose. If that were the case, though, you'd see hydraulic oil spurting out all over the place! There would be a large puddle on the ground where you were working, and the hydraulics would eventually stop working completely.

I suspect that you probably broke the hydraulic valve on the tractor. Probably from overloading the tractor, trying to lift too much, dig too deep, or something of that nature. Remember that this is a tractor, not a bulldozer, backhoe, or a payloader.

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Thanks Novel Idea Guy

06-07-2004 08:20:16




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 Re: Re: please help, info on 350U loader drive tr in reply to Novel Idea Guy, 06-07-2004 07:53:33  
I appreciate your feedback to my questions. I did not take offense to your comments. But just for the record, I can assure you that I was not overloading the bucket. Not by a long shot. I was purposely keeping the loads light as I was placing topsoil over a fence. It the bucket was 1/4 full at any time it would have been alot. When I disconnect the lines to each cylinder I have adequate fluid and pressure to the cylinders. I'll keep exploring further... Thanks again.

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Novel Idea Guy

06-08-2004 07:34:19




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 Re: Re: Re: please help, info on 350U loader driv in reply to Thanks Novel Idea Guy, 06-07-2004 08:20:16  
Whatever you're doing, you're pushing hard enough to make the tractor spin. That tells me you're digging this topsoil up from hard-packed ground. If you're digging the topsoil loose from the ground, the stress of doing that can be enough to cause damage even if you're only actually lifting 1/4 of a bucket at a time. Then again, what you were doing could have absolutely nothing to do with the failure. Old tractors have worn components, and worn components tend to fail.

Just so we're clear here, what exactly happens with the bucket? Does it just flop down when you raise the loader arms? Can you make it roll back and dump with the hydraulic lever?

I still suspect that the hydraulic valve on the tractor has sprung a severe internal leak. If the loader frame were broken, it would be painfully obvious. If there were an external hydraulic leak, you'd be standing in a puddle of oil.

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