JM 335 Duel Clutch major problem

JINMA224XR · Jan 28, 2006

If there is a problem with him agreeing to pay for the repairs to the tractor I would simply explain that I had been neighbourly and trusting and as he has abused this trust I will simply switch off the water and electricity supply (all located in our cellar). This is not something that we would want to do but I would be prepared to do if the situation is not resolved amicably. Also had no manuals or anything with the tractor. The French mechanic at the garage is working from a picture of the Duel Stage clutch that I got from the internet..that is all he has.


Hey Mike,

I would try to remain friends, talk softly, yet firmly. And I would move swiftly to procure the Service and Parts manuals for your Tractor, and Engine, as with my tractor, there were 4 different manuals. 2(operation/Parts) for the Tractor, and 2 (Operation/Parts) for the Engine.

You need to let your mechanic see these manuals, in order to assist him, in doing the very best repair possible, and trying to avoid, doing the repair over again to get it right the 2nd time.

If in doubt about whether to get an extra part or not, GET IT, because it is much better to have too many parts, than not enough when doing a repair project. Especially since the tractor is Split Apart.

You have the situation in hand, and are working from the Higher Ground.

Have a nice day,
Joe /forums/images/graemlins/cool.gif

Soundguy · Jan 28, 2006

( am not a technical or mechanical guy at all (god how I wish I was) but wondered, if the guy linked up a heavy generator (which he did for a few days to power grinders etc) to the PTO and ran this for a number of days. Would this cause the damage to the PTO plates? (i.e could the generator have been to much for a 35HP )

Was the load stalling the tractor? I'd expect that it would have to.. to be too much load. Keep in mind that 24 pto hp should run a 12kw genny .. etc. What size genny was he running? In other words.. I don't think a load at the rated pto hp of the tractor would hurt it.. that's what the tractor is made to do.. etc. .. that is.. unless the clutch was out of adjustment.. etc..

Soundguy

greg_g · Jan 28, 2006

I still believe this is a warranty issue. Evidence presented thus far supports an argument that the selling dealer did NOT properly adjust the clutch and/or linkage and/or bearing clearance before taking your money. As such, your neighbor truly has no responsibility in the matter beyond compensating you for the time used..

I recommend you turn your efforts instead to getting a clutchpack and bearing set from the UK dealer under warranty. Use the warranty replacement to repair, then send your OE clutchpack out for rebuild. Viola - instant shelf spare.

//gerg//

Ranch_Hand_Supp · Jan 29, 2006

MikeLonghurst, The release bearing did seize. The bearing is a sealed bearing... which means no grease fitting.

The Jinma clutch set up..... is designed for the release bearing to only turn when the clutch pedal is depressed.
To grind away the end of the fingers as shown.... there had to be pressure against them. Two things, foot on the clutch pedal making pressure or the clutch out of adjustment. I think clutch adjustment is what set it up for failure. I have seen release bearings go bad and do similar damage whether it be a sealed bearing or one you can lube.

The kind of heat that was generated on your clutch pressure plate etc from it slipping....... I don't think it would make a very good core to have rebuilt.

If the engine flywheel has the same kind of discoloring...... that would need to be machined to see if it will clean up.

Ronald
Ranch Hand Supply

MikeLonghurst · Feb 3, 2006

Just had some good news (at last). The dealer in the UK has said he will dispatch a complete clutch to be sent direct from China. Seems a bit weird as he said he gets the tractors from the US!!!

Next questions is. How long should it take to put the tractor back together again once the mechanic has the parts? He recons on 2 days which seems a long time to me (especially at 40Euros per hour + TVA at 19.6%) /forums/images/graemlins/confused.gif

Rgds, Mike L

greg_g · Feb 3, 2006

Well, half the job's already done: tractor broken and old clutchpack out. Assuming the UK dealer is sending the entire clutchpack (to include throwout and pilot bearings), it should take less time to reassemble than it did to disassemble. With the tractor in half, installing the new clutchpack is pretty straightforward. The owner's manual contains the tolerances that should be verified before closing up. Once the tractor halves are reassembled, it's a matter of fine tuning release lever clearances, pedal play, and pedal stop.

You could probably save some labor time if you finished up the wiring and light duty reassembly tasks yourself. Did you get all four manuals with your tractor?

//greg//

Ranch_Hand_Supp · Feb 3, 2006

MikeLonghurst,
Glad to hear you got some parts coming !!!

My guess warranty has something to do with it not coming from the US ?.... seller does not stock part/parts??

Quote: How long should it take to put the tractor back together again once the mechanic has the parts? He recons on 2 days which seems a long time to me (especially at 40Euros per hour + TVA at 19.6%)

Thats a million dollar question..... I have found most of the time it takes longer to reassemble than take apart. There is prep than has to be done first, splines cleaned and lubed, Clutch disc's have to be aligned before you slide the tractor back together, Clutch adjustment etc, etc , etc........

I would think if he is a tractor mechanic .... and as easy as the Jinma is built...... back together in 8 hours or less for sure. He may need 2 days to work it back in between other jobs ??? not truly working on it straight for 2 days???

Here are 3 pictures of the same set up,

http://www.ranchhandsupply.com/pages/35/index.htm

Keep us updated

Ronald
Ranch Hand Supply

Affordable · Feb 3, 2006

For what it's worth, we do clutch replacement jobs in about 6-7 hours which is including splitting the tractor and re-assembling with the new clutch pack,that being said we have done several and know how to pre-adjust the clutch pack,and made our own aligning tool,ect. which helps.It's not a real hard job but can be a pain to re-align. He's prob. saying give him a couple of days to to work load.We have our parts aleady so we don't have to wait to get parts

Tommy
Affordable Tractor Sales