Need pto help

[Hacksawhero123 351]

I started mowing with my new deck and lost pto engagement. Upon tear down I found one thrust washer wedged between the center stud (in the crank) and the butt end of the center bearing of the pulley. There should be a thrust bearing, two washers, and a spring on the center stud. The spring and one washer are missing. Will it hurt anything to run without the spring, washers, and thrust bearing?  Nearest I can tell, all it does is push the pto pulley against the brake when not engaged. 

Thanks. 

Mark. 

[cleat 5,934]

The later models like my 520's do not use that arrangement and simply have a spring on the PTO rod to disengage and pull against the brake (if it is there, I don't have a brake pad on any of mine and the PTO stops just fine without it).

[Hacksawhero123 351]

I removed the stud from the end of the crank. The end of it was boogered up a bit as were some of the threads. Crank looks good. I ran it for about an hour and a half this way and all seems well

[953 nut 55,198]

I would think as long as you keep the PTO engaged there should be no problem running it.

4 hours ago, Hacksawhero123 said:

started mowing with my new deck and lost pto

You do realize the majority of us are shivering and about to be snowed in don't you?   

[ztnoo 2,298]

A tractor model revealed to all of us might be helpful.

Just a suggestion.

Manual? Electric PTO?

Edited December 11, 2016 by ztnoo

[gwest_ca-(File Mod) 11,041]

Item #33 pto shaft in this later design is different than yours. You have one retaining ring #34 that applies pressure to the bearing to apply the clutch. This one has a second #34 retaining ring on the inside so the linkage will pull the assembly back out. You can change your's to this style and remove the small pieces on the inside.

https://www.partstree.com/parts/toro/mowers-lawn-garden-tractor/31-12k801-312-8-toro-312-8-garden-tractor-1990/pto-clutch-and-control/

 

Garry

[Hacksawhero123 351]

Nut, I'm only a few hours from Mexico. The grass never sleeps here. Supposed to be 75 degrees tomorrow. Thong weather. 

My tractor is a 1975 model C160. Gwest, after removing the stud and one stray washer, mine looks to be set up like the drawing from partstree.  

14-106 threaded stud with slot cut in the end

14-103 thrust washers (2x)

14-104 thrust bearing

14-107 spring 

all of these are now removed. The caged roller bearing and end bearing both looked great. Nearest I can tell, the parts I removed serve the function of pushing the pto cone pulley out against the brake when disengaged. Does this sound correct?

Thanks

Mark. 

[gwest_ca-(File Mod) 11,041]

That's the way it works.

 

Garry