torque limiter eliminator

Just curious as I've had to replace a few torque limiters over the last couple years and just replaced the one on my 7050 and its still slipping under load if a solid hub could be used in place of it or is it necessary to absorb the shock? I'm guessing my belleville washer is weak,everything else checked out to spec,had flywheel resurfaced,did the mash on brakes thing periodically throughout the 8 mile drive from the shop to the field. I wouldn't mind having a permanent fix to this if possible

Edited by grinder220 - 15 May 2017 at 10:43am

MACK wrote: If you lock it up, it will take the splines out of PD clutch. Always resurface flywheel, new disc, and pressure plate. If you don't do all three, you waste your time and money.

Mack , Do you mean to include all 4 things? The spring too?

The local implement dealer had told me that on the 7060 especially, and the 7050 at times you are running enough power that the limiter can slip.  Their standard method is to put a lock washer under each of the Bellevue washer retainers (1/2" lock washer between the flywheel and the "T" shaped washer clamp the bolt goes through) and add a second Bellevue washer to add to the spring tension.  The lock washer compensates for the added thickness of the second Bellevue.  I've done this on both my 7050 and 7060 with no issues, but like stated by others above to make sure the clamping plate and flywheel are flat.  If your plate is the original, make sure you get 6 new style Bellevue clamps with the new style plate since the later plates are thicker to prevent warping.  I also had to put a seal kit in the power director on the 7050 due to internal leakage and the shaft o-ring seeping and allowing oil to come out of the bell housing (possibly getting the limiter disc wet but no positive evidence of that when disassembled).  The 7050 would slip in high range on the power director but not low range before resealing the power director, so the oil probably never got on the flywheel to a sufficient amount to cause issues.  If you have a 6 button limiter disk, changing it to a 4 button should help in avoiding slippage.  I know it sounds backwards due to less surface area, but that is how it works with less surface area, it will drive more positively.

Gee, where is tcm tech to give his wonderful torque limiter advice?

The splines I spoke of are the ones in the cast PD housing.   MACK

Jordan(OH) wrote: Gee, where is tcm tech to give his wonderful torque limiter advice?

AC 7060 wrote: My pulling tractor had the double Bellevue washer setup when I was running 4th high low powerdirector. When I went to 5th it would not hold any more. Now it's bolted solid.

Why did AC use the torque limiter while other tractor manufacturers did not?

I know 5X88 series IH had them and Case power shift tractors had them. Later New Holland had them too. I think about anything with a wet powershift clutch would use them because the wet clutches grab so much harder. Not sure if something like a 4020 PS used them but I would guess they did.

I've just noticed that some power shift tractors use an actual pressure plate with 12 springs, just no levers to release. What was the reason for this style versus the belleville spring? 

Lonn wrote: I know 5X88 series IH had them and Case power shift tractors had them. Later New Holland had them too. I think about anything with a wet powershift clutch would use them because the wet clutches grab so much harder. Not sure if something like a 4020 PS used them but I would guess they did.