b7100 hst fan belt adjustment

[gino45]

I just changed my fan belt. Old one looked tired. Outside pulley has an odd sort of 'adjuster'. It seems positioned in place; however a bolt runs through it ---apparently to adjust tension. Right now the new belt seems tight and I need to understand this thing before I run the tractor. How much 'slack' should the belt have?
Thanks!

 

[thetooth]

Kubota B-Series Checkpoints

read this all the way at the bottom of the page says between 1/4"-3/8" .

 

[gino45]

Thanks for the response. That Messick description appears to be the normal way to adjust a fan belt--like every vehicle I've ever owned. On the B7100, there is no bracket for adjustment. That's why I'm was asking for input as its unlike anything I've ever seen. There's a threaded 'rod' or bolt but turning it doesn't seem to do much. If anything it works backwards, ie tighten to loosen?

 

[mrjv]

Thanks for the response. That Messick description appears to be the normal way to adjust a fan belt--like every vehicle I've ever owned. On the B7100, there is no bracket for adjustment. That's why I'm was asking for input as its unlike anything I've ever seen. There's a threaded 'rod' or bolt but turning it doesn't seem to do much. If anything it works backwards, ie tighten to loosen?

I am having the same issue..that bolt doesn't seem to move the pulley either way. It has a slot like it should move, but it doesn't. I have smacked it with a rubber mallet, but no luck...

Any help would be appreciated

Rod

 

[Travelover]

I am having the same issue..that bolt doesn't seem to move the pulley either way. It has a slot like it should move, but it doesn't. I have smacked it with a rubber mallet, but no luck...

Any help would be appreciated

Rod

Hit it harder.

 

[Dana Warner]

Try loosening the bolt in the middle of the idler pulley then the adjusting bolt will work fine.

 

[mrjv]

Try loosening the bolt in the middle of the idler pulley then the adjusting bolt will work fine.

I found this answer on another forum before you responded...thanks though!...amazing what a few turns on a pulley bolt can do...haha. I should have done a video of the whole painful process.

I love my Kubota, but I would like to slap the engineering team that designed the fan belt system.

Thanks for responding as this is the correct answer. :thumbsup:

Take care,

Rod

 

[bmbreer]

My fan belt broke yesterday so I'm getting ready to replace it and I've never done it before. I've order the new belt but it hasn't arrived yet. Will I need to take off the fan or radiator or can I simply put the new belt over the fan and around the pulleys and then tighten. Any help is appreciated.

Thanks,
Brad

 

[mrjv]

My fan belt broke yesterday so I'm getting ready to replace it and I've never done it before. I've order the new belt but it hasn't arrived yet. Will I need to take off the fan or radiator or can I simply put the new belt over the fan and around the pulleys and then tighten. Any help is appreciated.

Thanks,
Brad

HI Brad,

This is a PITA and took me about 4hrs yesterday to do it, but it finally came together. I will do a short video even though it is already done to show how you can do it.

It shouldn't take that long if you have an instructional video.

Will hopefully have it posted in the next day or so

Rod

 

[bmbreer]

Rod,

That's really nice of you. I have read some posts here and elsewhere where folks said it was a real pain but they all seem to have a FEL which I don't have. I've searched for instructions online on how to do it but haven't found anything.

Thanks,
Brad