Button fired Pto engagement....

[spruce Deere]

A little while back I was mounting the jacto 401 cannon sprayer to see how it would ride on the back of the xr3140. My initial measurements indicated one lever for the cannon adjustments would be much to close to the rear window, and it was after getting the sprayer on the tractor. A little remanufacturing of the lever and that was that.
Then I was playing with the pto shaft to check it for the right length. It was good length-wise but when I tried to turn the pto from the tractor to line the spines up, I could not budge it. The sprayer has far to much resistance to turn by hand also.
Is this how these electric over hydraulic operated pto are? or am i missing something...This is the first tractor I have owned the pto does not spin freely when lining up the splines .

 

[ptsg]

This is more or less how these electric over hydraulic PTO work.

It uses a clutch pack. Once you flip the switch On, the spool on the solenoid valve divert the fluid and engage the clutch pack.

This clutch pack has a spring actuated brake. Once you turn the PTO off, the spring applies the brake.

Some tractors will have a PTO lever to select between multiple PTO speeds, or between mid and rear PTO or simple Neutral or 540.

I don't know if this applies on your LS tractor but check if you have this lever on your tractor and switch it to Neutral if possible. It will let the shaft spin freely. Usually located on the left side of the seat, somewhere around the Range lever.

 

[bnold]

Or try to spin with tractor turned off.

If fluid applied brake, no fluid pressure from pump, no brake.

 

[ptsg]

Or try to spin with tractor turned off.

If fluid applied brake, no fluid pressure from pump, no brake.

The brake is spring applied.

 

[grsthegreat]

if you add an overrunning clutch/coupler to the mix, you can easily spin splines to line it up

 

[spruce Deere]

Must have a spring brake like you describe ptsg, there is no turning the shaft by hand.
That kinda sucks. I'll look at the service manual and see if there is something to 'remedy' that...

Over-run clutch, excellent idea.

 

[PCABE5]

A

Is this how these electric over hydraulic operated pto are? or am i missing something...This is the first tractor I have owned the pto does not spin freely when lining up the splines .

In short yes. The XR series has no neutral position so it's not going to spin by hand. The MT3 series fixed that by adding a neutral lever.

 

[JethroB]

Pry bar through the pto shaft yoke, carefully.

 

[spruce Deere]

Pry bar through the pto shaft yoke, carefully.

Yep jethro, after I get the tool box figgered out and mounted thats gunna be a permanent tool in it... And maybe an overrun clutch also

Pry bar cheaper though

 

[mred2]

I have always just turned the pto shaft from the attachment.