Farmall 806 Broke PTO disassembly

[@raymccarter3542]

That pos coupler just cost me a pto shaft! I’ll be doing this exact job on my 856 very soon

[@AndyFromm]

That sucks, good luck with the repair 👍 Check out my latest video, its also an ih pto video.

[@Vance_Nickerson]

Constant velocity joint has broken a many pto shafts. The weight of them is the culprit I think. Never broke a shaft without one but replaced many that were using one. I'll never have one hooked up to one of my tractors ever again.

[@AndyFromm]

That makes sense, i compounded it with a 1k to 540 adapter hanging on there too.

[@30acreshop_time]

So exactly how much does the PTO unit weigh, you said 163 pounds but I just want to be sure. Thank you

[@AndyFromm]

Thats what I came up with but online I see one listed as 200lbs ship weight which I'm assuming includes box/little pallet.

[@30acreshop_time]

@@AndyFromm ok, cause I’m restoring my 806 and I’m gonna take the PTO apart once I get back to the shop, but I was just wondering cause I’m worried if it’s 160+ pounds my 13 year old back might not hold lol

[@AndyFromm]

@@30acreshop_time oh it feels like 200+ I'd recommend a hand. I have a later 1086 pto video, same thing but I built a different tool for compressing the springs.

[@jaybaker9684]

So I'm changes clutches hopefully tonight but curious just because I don't know I see you pulled two snap rings a small and large the smalle held the spring in place but if I were to change just the clutches to I need to depress the spring or can you just pull the large ring and replace the clutches or is that spring gonna send everything flying if I do that

[@AndyFromm]

It's been a few months since I worked on one of these and I haven't done many. If i remember correctly you can remove the clutches without a press. Try pressing them down by hand and see if they move. If they move down I'd think you should be good.

[@1eightynet]

I hope you're still on youtube. When putting the PTO back in, how do you make sure the shaft lines up? I am having difficulty putting the PTO back in the tractor. Maybe it is no the shaft, but that is the only thing I can think it can be. One more question. How critical is it to use IH HiTrans opposed to any HiTrans? Thank you for you time.

[@AndyFromm]

I replied to your other comment before this but your tractor doesn't have a hole behind the 3pt link? The hydraulic fluid debate... I'm sure my brother has always used ih hitrans and he hasn't had much to any trouble but I have been running used cenex quiklift because I'm cheap. I got 240 gallons for $1 per gallon. Most specs on oils/fluids are pretty simular but each has their own secret sauce. Hydraulic fluid can be quite expensive but I'd recommend a quality brand like case or cenex. Cenex will warranty your equipment if you have qualified equipment and take samples. I think it has to bales pretty new equipment.

[@donvoll2580]

Good day Boy I knew you were a big man, but 163 wow. My 574 I think has 540 on top & 1000 on bottom. I am surprized that it did snap at 540, your tractor was propably running at 1300, you just had to much torque for it or metal fatique Thanks see u on next one

[@AndyFromm]

Sudden jolt I think

[@donvoll2580]

@@AndyFromm would there not have been a shear pin on.

[@AndyFromm]

@@donvoll2580 nothing broke or anything on the mower. The pto has high angle constant velocity u joints so it shouldn't have happened

[@r.hazelwood4885]

we do the same thing (run the 1000 at half pto speed) on our Hay Tedder but never broke one off like that..

[@AndyFromm]

I turned tight while going down then up a hill with my lawn mower... done it a hundred times, this time something must have bound.

[@heliweis]

Hello thank you for this Video Great

[@AndyFromm]

I appreciate the comment, thanks!

[@kenthawkins2418]

OK... Help me out here Andy. I've never worked on one of these, and I'm not familiar enough with the design. So I'm not confident I follow how this animal works You've got TWO PTO shafts because it offers more speed options, correct? It DOES have clutches,( and they're pretty new too) and they're designed to help keep these types of breaks from happening, correct? (assuming "yes" is the answer to both questions) You still ended up with a sheared shaft because of : #1: a possible fault in the shaft #2: clutches didn't slip enough #3: nothin's perfect and crap happens? 😜

[@AndyFromm]

2 speeds, top 1,000 bottom 540 rpms Clutch pack is for on/off 1 possible but doubtful 2 not supposed to slip 3 probably my fault cause i was driving 😉

[@kenthawkins2418]

@@AndyFromm OK, ...I figured the clutches were intended to protect the shafts, in case something "imoveable" suddenly stops your implement. 😳

[@AndyFromm]

@@kenthawkins2418 on tractors with "live power" there is power coming in directly from the engine to the pump on the pto. when the pto lever is engaged, the pto oil pump sends oil to the piston. the piston applies pressure on the clutches starting everything turning. my m does not have live power so on that, it uses the transmission clutch to disengage the power. when running something like a mower with alot of rotating mass, the mower will push the tractor when the clutch is depressed. the pto and transmission are essentially "joined at the hip" sharing the same clutch. on live pto they have separate clutches.

[@AndyFromm]

live/independent pto are independent of the transmission

[@kenthawkins2418]

@@AndyFromm Sorry it took me a while to say "Thanks" for explaining this. It helps put things in perspective about older generation letter series compared to the newer numbered series.