My mule drive fell apart - 520H

[tsmall07 49]

My mule drive fell apart when I was plowing this winter and I grabbed all the parts I saw, but I'm not sure I got everything.  Seems like there should be some spacers or washers to separate the pulleys.  When it goes back together, I'll put a cotter pin through the nut.  

[groundhog47 448]

Yes a spacer goes between the two pulleys and outer pulley and guard, outer pn 101757 and middle (inner) 101734. The hex nut looks wrong type, parts just calls a hex nut but it has a serrated pattern on back to sorta lock in place Pn 3219-7 (old # 915007)

Edited July 3, 2017 by groundhog47

[tsmall07 49]

Thanks! 

Edited July 3, 2017 by tsmall07

[gwest_ca-(File Mod) 12,177]

1/2" long spacer part number 101757 is on the outside between the pulley and cover.

5/8" long spacer part number 101734 is between the pulleys.

Spacer ID needs to slip over 3/4" shaft.

 

Garry

[tsmall07 49]

I think I'm going to try to cut some out of some 3/4" pipe.  

[Sarge 3,470]

Actually , those spacers are thin wall tubing - they must fit against the race of the bearing and not interfere with the pulley facing , or it will destroy the pulley . You'll have to measure the largest diameter that will fit the center portion of the bearing race and order the appropriate bushing material or source the spacers from McMaster or similar . Some hardware stores like Ace carry thin walled spacers that could be cut to fit it . I've had to make new ones for the older mules on several of my units due to bearings seizing up and tearing up the bushings ....it's a time consuming project but not all that hard .

 

Sarge

[tsmall07 49]

Yeah, I thought about that later. Maybe I'll try copper pipe. I've got a lathe, so I could always turn down whatever I use. I see people listed part numbers above. Where would I look for those if I wanted to buy them? 

[gwest_ca-(File Mod) 12,177]

Any Toro dealer

http://www.partstree.com/parts/toro/parts/101757/

http://www.partstree.com/parts/toro/parts/101734/

 

Garry

[groundhog47 448]

11 hours ago, tsmall07 said:

Yeah, I thought about that later. Maybe I'll try copper pipe. I've got a lathe, so I could always turn down whatever I use. I see people listed part numbers above. Where would I look for those if I wanted to buy them? 

Electrical conduit might work, but if have to by a piece dealer would prob be about that price and your spacing is important. If I get to my spares will get ya a measurement, we know ID a slip over/ loose fit 3/4", length is culprit for now!

[tsmall07 49]

Someone posted the length above.  They're cheap enough I'll just order some

 

[Mushrush 18]

What the size of the nut? I just lost mine.

[8ntruck 8,793]

I'm thinking that the nut that holds the pulleys on my mule drive is a Nylok nut - another McMaster Carr part.

[Lee1977 7,632]

It's a 3/4" fine thread nut. None of my mule drives have a lock nut.

[Wayne0 1,561]

On mine, the nut holds the belt guard on. Not a locking nut.

Guards seem to go missing on older units.

Edited May 12, 2025 by Wayne0