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MF 50 Industrial

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Bill Brox

10-26-2005 00:51:41

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Hi there, many many years since I posted in here.

Now, well, I have a MF 50 Industrial (UK built) with a problem (among other problems).

The transmission makes a noise in forward.

When I press the right side of the trottle to engage the forward clutch it makes this noise. If I press the left side of the trottle it makes no noise at all.
The sound of the noise is like an axle is spinning very fast, or a gear is spinning very fast, with a totally worn out ballbearing. And, it sounds like the speed of the axle / gear / bearing is very high. And as I say, not when I drive backwards. Sometimes a similar noise comes when the engine is just idling and none of the clutches are engaged. Sometimes I can even engage the forward clutch and no sound comes, not until the engine speed gets up to between 800 and 1200 rpm, and then the screaming noise comes back.

A guy I talked to here in Norway said it was a loose vane in the torque converter, but that sounds odd to me as it has it only when I move forward.

Anyone who has an idea about this ? I perfectly understand I have to split the tractor.. yuck what a job with loader and cab... Yeah, I guess I need to mention that I have replaced the oil... which was dark brown and smelly.
That indicated worn out clutches, but the tractor moves just fine both ways.

Bill in Norway.

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Big Dean

10-27-2005 08:06:11

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Re: MF 50 Industrial in reply to Bill Brox, 10-26-2005 00:51:41

Hi Bill I am like you if it was in the torque converter it should make the noise in both forward and reverse. I have never run across that problem before. I was thinking it might be the bearings in the idler gears they would be under a load when you are in reverse but not when you are in forward. That would also explain the noise in neutral you hear part of the time. This is just something to look at and about all I can think of that might cause the problem. When you find it I would sure like to know what you find this will bug me from now on.

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Bill Brox

10-27-2005 12:48:08

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Re: MF 50 Industrial in reply to Big Dean, 10-27-2005 08:06:11

Thanks Big Dean. John in UK said that you had worked on those.
What I know is that when I take the tranny apart, I need to replace the clutches and steels, and a full gasket kit. I have 2 problems, I am not strong enough to carry the transmission away from the tractor, and the clutches and steels cost quite a bit, so I am currently waiting with this.

But, I will miss the tractor this winter for the snow removal.

I thought they sold clutches and steels in sets, and priced as a set, who on this planet wants to buy one single steel or clutch plate... but they sell them and price them in single plates, and they are quite expensive, as I will need about 24 of them for the entire tractor.

Bill

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Big Dean

10-28-2005 04:32:16

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Re: MF 50 Industrial in reply to Bill Brox, 10-27-2005 12:48:08

I just rebuilt on of those transmission about a month ago I replaced all of the seals, all the clutch pack disc & divider plates, the return springs and a regulator valve kit those parts cost over $1000.00 US. The idler gears have a 100 needle bearing in them that have to be place in the gears one at a time. The tractor has to be split between the engine and transmission but everything in the shuttle shift section can be replaced without removing the transmission. The idler gears comes out the bottom and the clutch pack unit comes out through the front. If I can be of further assistance on this feel free to email me.

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Bill Brox

10-28-2005 10:40:11

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Re: MF 50 Industrial in reply to Big Dean, 10-28-2005 04:32:16

Hi Dean, I thought I had to have the tranny out in one piece.
The tractor has about 5500 - 5800 hours on the meter.

I looked at your website, and see you have a CD for sale, for industrial MF... could that be an idea for me to buy ?

Bill

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Big Dean

10-28-2005 12:24:13

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Re: MF 50 Industrial in reply to Bill Brox, 10-28-2005 10:40:11

Bill I do have a CD repair disc I sell on the MF Industrial tractors for $35 US it has a section for rebuilding that transmission. If you will send me your email address to daustin62@aol.com I will send you some pictures that will show you what is involved in rebuilding that transmission. You do not have to remove the transmission from the Rear center housing to rebuild it you remove bottom plate then remove the suction tube from the oil distributor housing remove the oil distributor housing from the front of the transmission Pull the idler gear shaft and remove the idler gears you will need something to catch all the needle bearing they will fall out of the gears when you remove the gears then you can remove the complete shaft and the forward and reverse clutch pack as a unit out the hole in the front of the transmission housing. They are not near as hard to rebuild as you would believe. I will talk you through anything you do not understand.

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Jack in CA

11-12-2005 16:00:38

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Re: MF 50 Industrial in reply to Big Dean, 10-28-2005 12:24:13

Big Dean is right. It's a major pain to rebuild the shuttle transmission, but it is doable. Those needle-bearings are a real pain - make sure you keep track of ALL of them. I found dealing with all the hydraulic fluid was as big a problem as anything. Also the little scrapper ring at the front of the shaft that fits into the torque converter is very delicate and a pain to get in without breaking. I don't know of any tricks, but I'd surely like to hear one for getting that back in without braking it. Good luck. Jack

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