274 clutch issues

[blackelk]

I have a friend who needed a clutch for his 274 and i told him I would do it. I have 4 Ford tractors and have replaced 3 clutches in the last year with no issues. I split this tractor and he ordered the parts. First pressure plate sent had 6 mounting bolts when his had 12. He called them they said it was an updated version and to go ahead and use it. Throw out bearing was missing so they had to send another. They shipped a pto release bearing instead so we had to wait again while they sent the correct part. Pressed all new bearings in then put clutch and pressure plate on with the 6 bolts. That night a new pressure plate arrived with 12 bolts so I swapped it out thinking all was good. bolted tractor back together and everything seemed to be fine. push left side clutch pedal down and disengages the transmission stopping forward movement. When I engage the PTO it turns the shaft, when I pull up the hand brake it stops the pto from turning under tractor power and I can turn it freely by hand. He says when you apply the hand clutch it is supposed to stop the pto and tractor movement both. I can not figure How I messed this up. Anyone got any idea's?

 

[DavidP,South Wales]

Hi, the ‘274’ tractor model number is not known in the U.K. and Leyland are about the only ones with a hand clutch. What make of tractor are we talking about?
DavidP,South Wales

 

[blackelk]

Massey Ferguson 274

 

[DavidP,South Wales]

Hi, the 274 is not a model that we have in the U.K. I have looked at the parts book and now understand a little of how it works and is very similar to the Leyland tractor hand and foot operation. It does indeed appear that the 12-bolt cover has now been changed to a 6 bolt cover. There also appears to be two different diameters of clutch plate. I’m assuming that the inner release bearing controls forward motion. Ensure that both are free to slide and can be adjusted freely if necessary. If I understand you correctly, the PTO lever is working correctly to engage and disengage the PTO and the problem is occurring when you apply the handbrake in that it is stopping the PTO. I have not checked the handbrake section of the parts book but it seems likely that the PTO hand lever and handbrake lever share a common shaft to pivot on or their linkage does. If they do, then of course all linkages must be free and lubricated. As to the disengagement of the PTO stopping the forward motion of the tractor, never in my 47 years of involvement with U.K. MFs have I heard of this. There will be times when you wish to engage and disengage on the move. I suspect that this situation was due to a very badly worn clutch release lever position that allowed the two operations to foul. Over time the tractor owner may have come to accept this as ‘normal’.
DavidP,South Wales

 

[blackelk]

Yes I agree. I have convinced him its normal and he has had the tractor a short time bought used and has always done that. The hand clutch says for pto on it. I did clean up and lubricate the shafts that the bearings slide over, while the main clutch release bearing slides inside of the pto one. He is cutting hay with it now. Thanks for telling me what I thought was normal.

 

[495man]

(quoted from post at 12:47:46 10/03/20) Hi, the 274 is not a model that we have in the U.K. I have looked at the parts book and now understand a little of how it works and is very similar to the Leyland tractor hand and foot operation. It does indeed appear that the 12-bolt cover has now been changed to a 6 bolt cover. There also appears to be two different diameters of clutch plate. I m assuming that the inner release bearing controls forward motion. Ensure that both are free to slide and can be adjusted freely if necessary. If I understand you correctly, the PTO lever is working correctly to engage and disengage the PTO and the problem is occurring when you apply the handbrake in that it is stopping the PTO. I have not checked the handbrake section of the parts book but it seems likely that the PTO hand lever and handbrake lever share a common shaft to pivot on or their linkage does. If they do, then of course all linkages must be free and lubricated. As to the disengagement of the PTO stopping the forward motion of the tractor, never in my 47 years of involvement with U.K. MFs have I heard of this. There will be times when you wish to engage and disengage on the move. I suspect that this situation was due to a very badly worn clutch release lever position that allowed the two operations to foul. Over time the tractor owner may have come to accept this as normal .
DavidP,South Wales

The 254 274 294 and older 184-4 were Landini tractors wearing MF decals and paint. They are like the 6830 / 7830 / 5860 / 6860 / 7860 Landini etc.

I ran a 5860 briefly, the foot clutch was just traction, the PTO clutch was controled by the hand lever AND there was a PTO gear box lever. You were supposed to leave the PTO clutch engaged and PTO gear box in neutral when not using PTO.