Fan belt replacement

[Fintilla]

Anyone replaced the fan belt on a Kubota L3901? so I loosened the tensioner all the way, but the belt still won't slip over the pulley. Am I missing something here, or is there a trick to it? Appreciate any tips please I'm tired

 

[CherryOnTop]

Anyone replaced the fan belt on a Kubota L3901? so I loosened the tensioner all the way, but the belt still won't slip over the pulley. Am I missing something here, or is there a trick to it? Appreciate any tips please I'm tired

Oh man, been there, replacing that fan belt sounds simple until you're three knuckles deep and questioning your life choices. If you've got the tensioner all the way loose and it's still not sliding on, check the alternator, it might need a little wiggle or a nudge to give you just that extra bit of slack, sometimes they kinda stick in place even when loose.

 

[Aamie Pajo]

Yeah, you're not alone, those Kubota belts can be stubborn, sometimes ya gotta loosen the alternator bolts too, not just the tensioner...that extra wiggle room usually does the trick. Hang in there!

 

[FrankCox]

Hey guys - the monkeys that replaced the waterpump in my R have tightened the Aux Belt so much its rediculous and as a result when you build the revs the belt whines louder which is doing my nut in. Slackening the belt the slightest just makes it slip and we all know what that god awful noise is like

So its looking like a replacement belt - my question is are they easy to get hold of? Im assuming its the same as an SR20DE aux belt and therefore I could quite happily pick one up in Halfords?

Cheers.

 

[eaudetoilette]

Anyone replaced the fan belt on a Kubota L3901? so I loosened the tensioner all the way, but the belt still won't slip over the pulley. Am I missing something here, or is there a trick to it? Appreciate any tips please I'm tired

If the tensioner is maxed and it still won't budge, definitely try loosening the alternator bolts too. Do everything here by hand so you can avoid unnecessary damage.

 

[richwill00]

The problem is that simply loosening the tensioner bolt isn't enough to create slack. On many Kubota models, the alternator acts as the tensioner pulley. You loosen a couple of bolts on the alternator and then you have to manually pivot the alternator toward the engine to get the belt off. It's a two-part process... loosening the bolts and then manually moving the alternator. Once you know that, it's a much more straightforward job. Good luck!

 

[zuluwinter09]

The problem is that simply loosening the tensioner bolt isn't enough to create slack. On many Kubota models, the alternator acts as the tensioner pulley. You loosen a couple of bolts on the alternator and then you have to manually pivot the alternator toward the engine to get the belt off. It's a two-part process... loosening the bolts and then manually moving the alternator. Once you know that, it's a much more straightforward job. Good luck!

Ah, that explains a lot! I was trying to swap the belt on my L3901 and thought the tensioner was stuck. Once I figured out the alternator trick, it was smooth sailing. Took a pry bar and a bit of patience, but way easier than I expected. Thanks for laying it out so clearly!