MF pto

[Dave W]

pto shaft on a friends mf won’t disengage. Think it’s a 290.
Lever goes into the side of the gearbox on the left just in front of the back axle. I’ve pulled the linkage off and the lever is travelling it’s full distance and turning the shaft etc. It’s clicking in and out as far as I can see but the shaft is still driving.
Is the clutch pack buggered?

 

[Henarar]

Does it still turn with a load on the PTO ?

 

[Dave W]

Does it still turn with a load on the PTO ?

Yes. Can’t stop it

 

[Henarar]

Clutch pack then I should think
I take it the tractor has IPTO ?

 

[Dave W]

Clutch pack then I should think
I take it the tractor has IPTO ?

Yeah it’s just a lever in cab for on/off. No extra clutch

 

[Sharpy]

When the engine is off does the pto still appear engaged?

 

[Dave W]

When the engine is off does the pto still appear engaged?

Engine off you can turn the pto by hand but it’s heavy like you’re turning things inside. It definitely isn’t free spinning

 

[Sharpy]

Could the valve be stuck that diverts the oil to the pto pack?

 

[MF-ANDY]

Connect a pressure gauge to the small test port on the side cover near where the lever goes in. You are looking for around 17 bar engaged and nothing disengaged. That will at least tell you if the spool is moving although you say you can feel the detents so i guess it is. Its likely the plates have warped slightly and the brake pad is worn out but its strange you say it still drives disengaged yet turns with the engine stopped.

 

[smcapstick]

As above - that sounds like the PTO brake has been worn, so the clutch has been dragging without being properly engaged (probably for years).

At least it's easy to fix (once you have the cab up, tractor split, top cover off and hydraulic pump out of the way)

 

[Dave W]

As above - that sounds like the PTO brake has been worn, so the clutch has been dragging without being properly engaged (probably for years).

At least it's easy to fix (once you have the cab up, tractor split, top cover off and hydraulic pump out of the way)

You’d best nip down this afternoon and sort it then

 

[REStracTORATION]

Pto brake