Mechanic say's this J.D. is a factory "FLAW"

Tx Jim · Oct 20, 2013

The splined shaft in your photo is the pto drive shaft or the trans pump drive shaft. The traction clutch shaft is smaller diameter with larger splines. Can you provide some casting numbers from PP???

duke7595 · Oct 20, 2013

Jim I can't remember if i said that the PTO continues to turn even w/ the clutch pedal completely down , same as a Independent PTO would do.

duke7595 · Oct 20, 2013

Tx Jim said:
The splined shaft in your photo is the pto drive shaft so I'm nearly 100% sure your tractor has a dual stage clutch. The traction clutch shaft is smaller diameter with larger splines. Can you provide some casting numbers from PP???

Their is noting listed on the invoice, so i would have to try and get then directly from the mechanic.

fieldman12 · Oct 20, 2013

Is it just me or in the one pic that shows the gap between the foot rest and clutch pedal adjusted wrong?? On mine and others I have seen the pedal always touches the board and when lightly pushing in on clutch you should never be less than a half inch of free play if memory servers me correct or seems like thats how my 2155 is.

aczlan · Oct 20, 2013

Tx Jim said:
See if you can get/reveal any casting numbers. I saw a number on a PP finger but couldn't read it. Yes JD did use a few different clutch assemblies but they're a long way from as scarce as "hen's teeth". The dual stage PP assembly comes with pto assembled in it so to a novice it might appear as as a single stage clutch.

To me, the numbers on the fingers appear to be one of the following numbers:
1806 063 099
1806 065 099
1806 066 099

Aaron Z

Zebrafive · Oct 20, 2013

I am seeing 1806 063 099

Zebrafive · Oct 20, 2013

From the pictures in post 34 I think this is a two stage clutch. From the drawing in post 33; I see in pictures in post 34: pin #15, spring #24, Washer #25, cotter pin # 26.Single stage clutch does NOT have these parts.

Just a wild guess: the traction clutch or PTO was installed backwards and the two clutches are binding together hub to hub with each other?

Zebrafive · Oct 20, 2013

Another drawing of the two stage clutch

Zebrafive · Oct 20, 2013

Tx Jim said:
I'm curious as since you posted other photos of the 1020 why you can't remove the round inspection cover and take a photo of the PP? All I'm searching in for is thickness of PP. Look at the differences in the way the 2 PP are constructed. 1st photo dual stage clutch. 2nd photo trans driven pto.

duke7595,
In the first drawing TxJim posted (post 33) can you see parts 14 (two jamb nuts) 28 (pin forward of lever 27) & 27 (lever) thru the adjustment hole of your tractor? There should be three of each set.

duke7595 · Oct 20, 2013

Zebrafive said:
duke7595,
In the first drawing TxJim posted (post 33) can you see parts 14 (two jamb nuts) 28 (pin forward of lever 27) & 27 (lever) thru the adjustment hole of your tractor? There should be three of each set.

The pictures I posted are about all I can see, and honestly I would probably not know the difference,
I do appreciate your interest, and know that it is difficult to try and help someone who just
don't have the expertise.
My problem is going to be, how do I convince my mechanic that he or one of his workers more than likely dropped the ball. He is totally convinced that the assembilly is a single stage, and he installed the
parts accordingly.
Question: would a single stage assembly be able to be installed in a 2 stage ?

Tx Jim · Oct 21, 2013

Zebrafive said:
Another drawing of the two stage clutch

Zebrafive
Please help my old feeble mind. I trying to envision how the trans pump drive shaft is powered on a single stage clutch. Spline shown in photo will be the pto/trans pump drive shaft(parts key #4) in the 2nd photo. I think if duke's tractor was really a single stage clutch as mechanic states that the spline would not be visible in the 3rd photo.

Zebrafive · Oct 21, 2013

Tx Jim said:
Zebrafive
Please help my old feeble mind. I trying to envision how the trans pump drive shaft is powered on a single stage clutch. Spline shown in photo will be the pto/trans pump drive shaft(parts key #4) in the 2nd photo. I think if duke's tractor was really a single stage clutch as mechanic states that the spline would not be visible in the 3rd photo.

There is a torsion damper with internal spines (bolts to the pressure plate). The hollow shaft is always driven since the pressure plate is bolted to the flywheel.

Part 7 in the exploded drawing, part 6 in the assembled drawing.
Since finding this drawing he MAY have a single stage clutch!

Tx Jim · Oct 21, 2013

This parts schematic of a single stage clutch/PP does not show the place for the splines that your photo eludes to.

Zebrafive · Oct 21, 2013

Tx Jim said:
This parts schematic of a single stage clutch/PP does not show the place for the splines that your photo eludes to.

You're correct, with no PTO or transmission driven PTO the transmission shaft is solid, so no need for hollow PTO shaft with inner transmission shaft. Hence you would not have the splines shown in the picture. I think the single stage clutch/pressure plate drawings I found is for the hydraulic independent PTO clutch. Where the PTO shaft (from flywheel, NOT the output) is always driven up to the hydraulic clutch pack

Now I am thinking either it has a two stage clutch assembled or adjusted wrong. Or at some point the two stage clutch was swapped to a single stage clutch, from maybe a parts tractor, to get it going. By someone that either did not know better, or was willing to sacrifice the PTO, to get the tractor running.

RickB · Oct 21, 2013

Zebrafive said:
Now I am thinking either it has a two stage clutch assembled or adjusted wrong. .

This pretty much has to be the case, as if it actually had the rare single stage clutch, the PTO would disengage with the transmission. If it had independent PTO , the control would be in a different place, and the OP understands that. There's waaaaay too much thinking and speculation going on here. It''s all but certain to be a screwed up double clutch. Pretty sad that somebody actually installed that clutch (apparently for $$$) then calls it a 'design flaw'. I don't claim to be an expert, but if the front disc on that double clutch assembly is the PTO disc, it's probably in backwards.