More 1850 pto ??

herk

Member
I still have not gotten the pto- hydraulic shaft out, starting to get pi$$ed off I have been doing mechanic work for 40 + years ( some say I am pretty good ) but this thing has me stumped. 1st ??I bought this thing so I could have anther tractor with 1000 rpm shaft on this one, the hole that the sifting shaft ( lower right from pto )has nothing coming out I shoved a screw driver in the hole about 3 " so I am guessing no guts for 1000 :( 2nd ?? can I unbolt the 2 speed from the bell housing in the tractor and lift the motor out then take the 2 speed out ?? Thanks Bryan
 
Been wondering how you were getting on? Not making sense that it won’t come out. The 1650 that gave me grief had chewed up splines on the end of the shaft that fits into the drive hub on the flywheel. It only came out with my slide hammer contraption but the replacement shaft slides in and out with no fuss so I figure the bad splines is what hung the PTO shaft up. You could also be hung up in the center at the drive for the hydraulic pump. The hi/lo has a shaft the sticks out the front about 10”. I don’t think the engine will slide forward enough to get away from the two speed. If the shaft is bound up in the flywheel that won’t help anyways. If you remove the top of the transmission/hydraulics you can see the shaft between the bull gears. You might be able to work it free from there. You might also consider cutting the shaft between the chain coupler. You should be able to get enough of a gap to get a thin grinder disc or saw blade between to cut it in half. At least that will get the engine and two speed out. I think a new PTO shaft is less than $300 bucks.
 
From what I gather the splines that drive to hydraulic pump are binding up on the pto drive the shaft moves nicely till it hits the pto I can move it in and out about 10 inches, I really don't want to take the top off
 
I was thinking about this before it may or may not work. You may able to pull the pto unit out of the tractor with the shaft still in. You said you can get the shaft out about 10 inches? So I don't see why it would not come out with the shaft still in. What if you made up some long guide rods that go into the tapered bolt holes for the pto, like maybe 12" long ones to guide out pto some what straight. I used two 8" bolts with the heads cut off to remove and install the pto's on my tractors. If you can get the pto unit slid out then you may be able to see what's going on in there. Just a shot in the dark.
 
Even if you can get the engine tipped right and get it out, which I doubt because the input shaft in the 2 speed won't clear, you'll still need to get the shaft out before you can get the 2 speed out because of the curve in the frame.
 
I just saw in your other post that you tried the impact. You said you were pulling with a bar for leverage, don't do that. Just hold it so it doesn't spin and pull with gentle pressure so things can align themselves.

What are you feeling when it stops, does it feel like it's starting to slide in to something or does it bang up against something? When it stops, can you still turn it?
 
If it moves in and out 10 inches then I doubt it is hanging up at the hydraulic drive as the shaft would be smooth at that point. There is about 2 feet between the hydraulic drive and the back of the transmission. I am thinking your problem must be at the clutch or the end of the 2 speed input shaft. Just thinking about the length of movement you have, the splines that drive the hydraulic pump would come clear of it’s drive gear and be stopping right between the bull gears of the transmission. Nothing there to hang you up. At least on my my 1850’s without a 3 pt hitch. Pull the shaft until it hangs up and then step on the clutch. If it moves you know that the clutch is grabbing it.
 
He said in his other post that he'd tried it with the PTO engaged and disengaged. I'd bet that he worked the lever with the splines pulled back out of the discs, and they dropped a little and fell out of alignment, wouldn't you? The only remedy would be to use the impact with it disengaged and pull gently, wouldn't you agree?
 

I'd put the engine back where it goes, slide the shaft all the way into the flywheel, give the pto output shaft a little turn try pulling again, shove it back in and repeat and repeat until it comes out. We've never NOT been able to remove one, and have never used an impact. Sometimes it takes a lot of patience and time to get those splines aligned.
 

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