Mid Mount Mower Help

Cotton Hill · Jul 27, 2010

Sorry for the multiple posts - I'm new here and since I didn't get any response to my post from the other day, I figured I'd give it another shot.

I have a Kubota RC60-72H MMM, probably from around 1986, that I've had for a year. I bought it with my B6200 last year from a reputable dealer and have used it quite a lot since then.

I ran into a problem last year when I shaved the top off of a nice rock outcropping and somehow managed to bend up the top cover in such a way that it couldn't go all the way up. For that one, I sawz-alled out the bent and broken section and bent and riveted in a piece of flat-stock, and it worked fine and doesn't even look too bad.

Later in the year - and a week before my wedding on my own land (of course) I managed accidentally loosen up the bolt on the middle blade so that it would offer no resistance and not cut. The dealer simply tightened it up for me and refused to even let me buy them lunch - nice guys.

This time around, it just wouldn't cut a thing. I made sure the PTO was working and pulled off the mower. As soon as I got the cover off I saw that the belt had snapped. I got a new belt that seems to be the right size, but I can't for the life of me figure out how to route it.

It looks like I need to unbolt and lift up the gear box on top of the center spindle to thread it onto that spindle, but I'm not sure. Also, there are a couple bolts corresponding to the path the belt takes around the spindles, but they look like they should have some sort of guides or rollers on them.

I just ordered a manual from some guy online, but who knows how long it'll take to get here. Anyone have any ideas? Or if anyone has a similar mower, would it be possible to just pop off the cover and take a quick pic?

davatk · Jul 27, 2010

Cotton Hill said:
Sorry for the multiple posts - I'm new here and since I didn't get any response to my post from the other day, I figured I'd give it another shot.

I have a Kubota RC60-72H MMM, probably from around 1986, that I've had for a year. I bought it with my B6200 last year from a reputable dealer and have used it quite a lot since then.

I ran into a problem last year when I shaved the top off of a nice rock outcropping and somehow managed to bend up the top cover in such a way that it couldn't go all the way up. For that one, I sawz-alled out the bent and broken section and bent and riveted in a piece of flat-stock, and it worked fine and doesn't even look too bad.

Later in the year - and a week before my wedding on my own land (of course) I managed accidentally loosen up the bolt on the middle blade so that it would offer no resistance and not cut. The dealer simply tightened it up for me and refused to even let me buy them lunch - nice guys.

This time around, it just wouldn't cut a thing. I made sure the PTO was working and pulled off the mower. As soon as I got the cover off I saw that the belt had snapped. I got a new belt that seems to be the right size, but I can't for the life of me figure out how to route it.

It looks like I need to unbolt and lift up the gear box on top of the center spindle to thread it onto that spindle, but I'm not sure. Also, there are a couple bolts corresponding to the path the belt takes around the spindles, but they look like they should have some sort of guides or rollers on them.

I just ordered a manual from some guy online, but who knows how long it'll take to get here. Anyone have any ideas? Or if anyone has a similar mower, would it be possible to just pop off the cover and take a quick pic?

You might check these parts manuals. I don't think the one for yours shows enough of the belt assy to help, but it is possible some of the other manuals may be close and give you an idea.

Hope it is of some help.

Index of Kubotabooks/Mowers, Catchers /

Cotton Hill · Jul 27, 2010

Thanks a lot, Davatk. Unfortunately, I think you're right about there not being enough detail. I spent a couple hours over the weekend staring at a while bunch of those parts diagrams and trying to make sense of them - no dice. But I really appreciate the help.

crbr · Jul 27, 2010

Cotton Hill said:
Thanks a lot, Davatk. Unfortunately, I think you're right about there not being enough detail. I spent a couple hours over the weekend staring at a while bunch of those parts diagrams and trying to make sense of them - no dice. But I really appreciate the help.

I looked in my mower manual that came with the mower and if Kubota had been any more detailed and pictorial about the routing and replacement of the belt, I'd run out and buy two more mowers just like it, so I could have three worthless manuals.

No cigar.

I can take a picture of mine this weekend if you are still in need.

BotaBigot · Jul 27, 2010

I believe you have to remove rt gearbox-to-deck bracket only, and those "bolts" you see sticking up help keep belt from "whipping"...belt doesn't ride on them.

Rest is from memory...had lots of different decks and I'm gettin' old...:confused2:
From rear, fit belt over l and r spindles and lay rest over center spindle. From left spindle, wrap belt around front of center spindle around pulley back toward l spindle, then around idler back toward r spindle. Replace bracket. Apologies if I remembered wrong...

Cotton Hill · Jul 29, 2010

Thanks a lot for the help, fellas. I'll give it a shot over the weekend and holler either way it works out.

BrierPatch · Jul 29, 2010

I believe your MMM is the same as the one that was on my B7200. You have to take a bracket off one side of the gearbox to get the belt around the drive pulley. The rest is pretty simple. The belt runs straight across the back of the mower deck between the outside pulleys, then I believe the belt goes from the right (as you sit on the mower) most pulley and wraps around the spring tension idle pulley then around the drive pulley (gearbox) and then to the left most pulley. This is from memory as well so I may not have route correct, but I do remember you have to take the bracket off the gearbox.

Good Luck !