Yard Machine Mower Transmission

[Big Bob]

A guy at work gave me a yard machine riding mower this week.
It was his Dad's and it made a pop and the transmision stopped working.
It has a good 10 HP engine. It has been setting unused a few years.
I got the engine running and it seens to run well.

It will not pull it's self. All the belts seem to be in place and the pully on the axle will move the mower if I turn it by hand. The Forward Neu Rev lever is near the seat and there is a six speed shift lever near the steering columne that works a varible speed pulley This belt turns the axle pully. I am going to take it apart this weekend and see if I can tell what it not working. Has anyone worked on one of these things?

It is labeled as shift on the fly so I believe the variable pully controls the ground speed. It may have a spring on top of it to make it close and work as a larger diameter pulley. I will get someone to work the lever while I watch from below.

Any ideas?

 

[Hardpan]

I haven't worked on one, but it sounds like it s the variable speed pulley. Maybe linkage, probably a spring or detent. Let us know what you find.

 

[mudwrench]

I haven't worked on one, but it sounds like it s the variable speed pulley. Maybe linkage, probably a spring or detent. Let us know what you find.

also check for a key in all the shafts i had one last summer that took me 3 tear downs to find all good now

 

[Big Bob]

You called it Hardpan. It turned out to be a broken spring that held tension on a idler pulley. I pulled the varible pulley out and it seemed fine.
I got everything in gear and found the belt was to loose to pull. the idler was a bit hard to see as it was under the engine. I found the broken spring and put a keyring through it to hook on the anchor point.

I got it running and everything is working fine now. I drove it around in the farm driveway for about 20 minutes and things held together. The carb could use a cleaning as the engine has an occasional cough but pulling the choke out just a bit makes it smooth out and run fine.

It rained this morning so I didn't try to mow any yet. This may end up being a good mower. I will have some fun
Monday at work kidding my friend about how much was wrong with the mower.

Bob

 

[Hardpan]

Good deal. I think I'd let on to your friend that it was a son of a gun to find and fix and ask him if he has anything else for you. Sometimes it's best not to tell the whole story, like the time I got a mower that wouldn't mow well, it did when the blade was flipped over the right way. Let them save face and think your a whiz.