Hung up 2 stage clutch or indepenent PTO

[cbolcato]

Recently purchased a Massey Ferguson 135.

How can I tell if I have a two stage clutch that is just not disengaging or i have an IPTO (independent PTO)?

 

[cornshucker]

The plate where your lever attaches to the rear end housing will have three positions (engine, neutral, and ground) if it is a two stage clutch.

 

[NCMau]

The plate where your lever attaches to the rear end housing will have three positions (engine, neutral, and ground) if it is a two stage clutch.

My 202 has two positions and has a live PTO (depress clutch, PTO keeps going). However, if the tractor is running and I try to engage the PTO, it grinds. I have to stop the engine, engage the PTO and start the engine again.
If I am supposed to turn PTO on/off with engine running, then I must have a clutch problem, assuming the 135 and the 202 have the same configuration.
An opinion would be welcome.

 

[flusher]

The plate where your lever attaches to the rear end housing will have three positions (engine, neutral, and ground) if it is a two stage clutch.

That's right. The independent pto (IPTO) has a two position lever (OFF/ON) that controls an internal hydraulic valve. The IPTO operates off a hydraulically controlled clutch that's supplied hydraulic pressure via a separate hydraulic pump. The IPTO operates independently of the transmission and runs the pto shaft at a speed that's proportional to engine rpm.

 

[Localmotion]

I have just answered a similar question on another TBN forum: http://www.tractorbynet.com/forums/new-holland-owning-operating/222396-live-power-take-off.html

From memory the 135 clutch is similar in design, so may be of use...

 

[Fuel Leak]

So if the tractor is running and you want to engage the pto and the clutch peddel is fully depressed and it grids really bad trying to engage the pto you have a clutch problem? Just asking I have a simular problem on a 451 mf 4wd.

 

[aczlan]

So if the tractor is running and you want to engage the pto and the clutch peddel is fully depressed and it grids really bad trying to engage the pto you have a clutch problem? Just asking I have a simular problem on a 451 mf 4wd.

Per Massey Ferguson 451 Tractor - Attachments - Specs your tractor has an independent PTO. I would ask your local dealer though.

Aaron Z

 

[pjbci]

You need a new clutch on that 135. Someone damaged the pto clutch disk during reassembly. Its very easy to warp the pto disk if both internal and external shaft holes are not aligned perfectly. I have done this myself and it keeps the pto from disengaging.

 

[MF 255]

I have a MF 255 and the PTO will not disengage. Kinda dangerous when bush hogging. Any suggestions on how to fix the PTO?

 

[Kenneth S]

There should be a cover on the bottom of the bell housing, you can remove it to see what kind of clutch you have. Some tractor have a single stage clutch so you would a PTO over run so when you push in the clutch whatever you have hooked to your pto won't still be pushing the tractor when you depress the clutch.

A single stage clutch pressure plate.

A 2 stage (a split torque clutch for independant pto will look like this) The three fingers will have bolts that you can adjust against the throwout bearing.

A pto over run clutch for if you have a single stage clutch.

With independent pto you can engage the pto without pushing the clutch pedal.

The 202, and 451 has a 2 stage clutch (you should be able to engage the pto without gringing while the engine is running)

On the 255 it should have a 2 stage clutch (can you push the clutch pedal all the way down, and engage the pto without it grinding?). The clutch pedal could be out of adjustment, the 2 stage clutch could be out of adjustment, or the 2 stage clutch nay need to be replaced.