Troy Built Horse

[Yalerider]

I have a few year old Troy Built Horse tiller. The tines stopped turning the other day. When I try engaging the tines it doesn't feel like it is doing anything. Sometimes they turn when disengaged when I start it, then stop turning no matter which way I put it. Any ideas?

 

[beenthere]

Sounds like the gear box. Have you tried adjusting the cable linkage going to the box, to make sure it is engaging all the way, and not just part way, thus causing it to slip out of gear?

Just fixed a lawnmower that acted this way. Took the gearbox apart, expecting to find worn out gears or clutch fingers worn off. All was in great shape. Assembled it, and adjusted the cable to pull another 1/4" to engage, and worked fine.

With the model and serial number, see if you can pull up some schematics of the gearbox on the net, and check out what might be causing it. Or post the numbers here, and we can see if we can be of further help.

 

[timb]

Do the drive wheels engage or is everything stopped? If nothing moves - dumb questin but have you checked the drive belt / pulleys? Either the belt may be broken or one of the drive pulleys may be slipping on it's shaft? (I have a 7hp Kohler Horse from the late 70's. Never had that problem but that's the first thing I'd check.)

 

[Yalerider]

Thanks for the ideas. Yes, the drive wheels turn. There is no cable, the clutch engagement is lever activated. See page 52 part #25. I think I will pull off the tiller attachment transmission assembly off and take a look see.

http://manuals.mtdproducts.com/mtd/DocGetter?doc=1905444.pdf

 

[milkman]

I would suspect either key #7 or key #11 on page 11 might be sheared off and just friction will turn the tines sometimes. Hopefully it's not one of the gears.

 

[timb]

Yep, if the motor output pulley and tranny input pulley are both still tight to the shafts, and drive wheels are under strong power that rules out keys 27 on page 50 (page 5 of the pdf) and #35 on page 52 (7 of the pdf). If so next most likely suspects would be #7 or #11 on page 56 (11 of the pdf) like Milkman said.

I'd be amazed that the big drive worm gear went - but even if so, I've seen even those on eBay cheap.

 

[Yalerider]

It won't be 7, I can feel gears turn when I turn the tines. I'll bet it will be 11. Thanks for the info.

 

[milkman]

If you can turn the tines with the clutch engaged, I'm betting it will be #7 because you can't turn the tines by hand and turn the worm gear and input shaft. After thinking about it, if you can turn the tines by hand on the Troybilt, either a gear is stripped or the #7 key is stripped.

 

[Yalerider]

Pulled the tiller attachment off. All fine there. It is in the clutch somewhere on page 54. Lever 25 turns too easily, maybe screw or fell off or something inside.

 

[Yalerider]

Pulled the tiller attachment off. All fine there. It is in the clutch somewhere on page 54. Lever 25 turns too easily, maybe screw or fell off or something inside.