DavidP, may I have the benefit of your knowledge?

Inno · Jul 27, 2010

I have posted about my 202 Industrial 3pt hydraulic pump and how it broke. It is essentially the same as a 35 from what I gather and I know you have answered similar questions previously.
Mine was making a banging noise when I released the clutch so I took it apart and found the pump in about a million pieces. In looking for a replacement I see there are ones with and without a strainer. Mine is without. Does it matter which I replace it with? I'm guessing a strainer is a good thing to have and may have helped mine not explode.
I am also wondering if it would be ok to run the tractor without the pump in place as I do not ever use the 3pt. because there is a backhoe which is driven from the front pump. I don't have any 3pt implements as of yet but I can always replace the pump at a later time.

MPM1 · Jul 27, 2010

As long as it"s the shot strainer you can use that pump.

If you do not have any need for the pto you can reassy without the pump.

MKinOntario · Jul 27, 2010

Holy cow, our MF30 is knocking too when the pump is turning and
the 3 pt is under load. I guess we'd better tend to it fast, before we
get the same result. I was gonna take the cab off to look through
the side and diagnose it (hoping it was the relief valve only), but
maybe I should just lift the top off the tranny and change the
whole unit. The knocking's getting worse lately.

MPM1 · Jul 27, 2010

Knocking indicates that the 3pt is going to high and going into constant pumping. The lever quadrant should adjusted to keep this from happening. Or block the lever from going to far.

Inno · Jul 27, 2010

Once it was knocking it was too late. That damage was basically from when I heard it knock I shut it down and got my wife to hold down the clutch (to prevent it from turning) while I took the backhoe off then I limped it into the garage. The damage was already done.
Hopefully yours is more like what MPM1 is describing.

DavidP, South Wales · Jul 28, 2010

Hello,
To quote a well known UK tv personality "Didn't you do well!" Looking to the future it would be advisable to replace the pump while you have it stripped and retain the use of the PTO. However if you are sure that you will not need to use it at least for the forseeable future there is no reason to replace it. However I would push the piston in the cylinder fully home and plaster the cylinder bore with grease. The bore can rust easily if the piston is not lubricating it.
DavidP

Inno · Jul 28, 2010

Well I was quite proud of myself yes!

I've always believed that anything worth doing is worth doing right!
It is my guess that the 3pt and PTO have never been used on this machine simply because the backhoe has been very well used! In addition the PTO shaft shows no wear at all. Aside from the pump now exploding, the levers to control the 3pt are very stiff to move, the piston is all the way in the home position but the lift arms are all the way up and seemingly stuck there. I will take a closer look at everything and maybe clean and grease it up as you suggest for future reference if I can get any movement from the piston and arms at all. At least that way if/when I do decide to make it operational I will know what I am facing. If I get the rest of it prepped now then adding a pump later on won't be a huge job. I figure I can get it stripped down in an evening and put back together the next.

Thanks for your advice.

MKinOntario · Jul 28, 2010

On ours it starts knocking as soon as the load is placed on the 3pt, whether it's all the way up or just barely off the ground. The knocking goes away as soon as the load comes off, or when the clutch pedal is depressed. This is a former municipal unit and the counterweight is on the 3pt without any other form of support. Makes a good parking brake though! Someone said that what we have on it is a factory weight-box. It's filled with ball bearings of all sizes. The 2200 we had when I was a kid had a frame extended back off the loader frame to carry the concrete weight hooked to the 3pt so that it wasn't loading up the 3pt all the time. I was thinking I might go that route in the interim.

Inno · Jul 28, 2010

I'm no expert but it certainly sounds like it could be a pump problem.
Could also be a bearing on the pto shaft as it is the pto shaft that drives the pump.
Mine as long as I have had it has always made a ticking or clicking noise when the clutch was released but I assumed it was the throwout bearing. I haven't started it since removing the pump but maybe that was the noise. I'll know soon enough.

DavidP, may I have the benefit of your knowledge?

Inno

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MPM1

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MKinOntario

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MPM1

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Inno

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DavidP, South Wales

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Inno

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MKinOntario

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Inno

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