4-150 pto clutch problems

[Anonymous-0]

i have a 1975 4-150 with 1000 pto and have been using it to run a patz 615 silage mixer and manure spreader. we are now on our 3rd set of clutch plates as it does not seem to be able to handle these jobs. can anyone shed some light on why we keep wearing these disk out. the local dealer has tested pressures, etc. Can i put a heavier pto unit from another model on this tractor to solve this. my goal is to use this tractor to chop silage but the reliability right now prevents me from doing so. any info will be greatly appreciated. thanks

 

[Fern{Mi}]

Had same problem with an 1850 using new technology. Having to take it back apart a second time some changes had to be made. While the clutch disc basically remained the ppad configuration (same) more pads were added each side. No more clutch problems that tractor nor another equally rebuilt from the git-go.

Wish I could show you pictures what I mean including ALL (three) the differences. Our clutches were rebuilt in Lansing Michigan.

E-mail's open if you need clutch addy. I'll get it tomorrow for you.

Fernan

 

[mkuhns]

The 1850 pto is totally different from the 4-150. The 1850 unit is about bullet proof. We use our 1850 @ about 190 Hp on the blower with no problems and the 2150 on the chopper with no problems, other than tightening up the clutches. With that said the hydraulic actuated PTO's like on the 1755's and up to the 2255 oliver and white's such as 2-85, 2-105, 2-150 and others in that era were pretty much identical. About the only differences were gearing for the different engines. Engaging the PTO at higher RPM's on a mixer that starts under heavy load is hard on these PTO's and you'll wear them out quickly. Running the 2255 or 2-150 on the chopper, we were replacing the clutches about every other year. How often are you replacing clutches? My guess would be the pressure @ the PTO is too low causing slippage under load that may not be noticeable. Is the PTO control valve spool moving properly, allowing the pto to turn on fully? Have you replaced all the piston O-rings? I would "T" a pressure gauge into the pressure line at the PTO and see what you have. It should be about 170-210psi. Leave it hooked fast and see what you have at times during PTO operation, and even when turning. If it is low your problem is in the control valve below the hydraulic pump. On non-articulated tractors, the PTO would turn off if pressure was too low. With all the extra resistance of cables, it probably wouldn't turn off by itself. Our 2255, I cut the thickness of one clutch and one steel off the front spacer (one closest to the piston- I think) and added an extra disc and steel. It has been that way for about 4 years now. We don't use it near like we used to, so I can't say how much it improved it. It's running about 225Hp so I know the PTO can take the power as long as it is not abused. Just my experience.