3 point lowering speed knob question
- Thread starter LBrown59
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RobJ
Elite Member
DOn't know what to tell you. Mine wouldn't budge either when I first got the tractor (it was used). Since everything was working fine and I didn't feel like putting some pliers on it. Then weekend before last I was mowing and noticed it was loose. WTH?? Almost felt like it was going to unscrew and come out or something so I gave it a few turns...not thinking. I was running the FM and needed to lift it over some junk and it stuck up. Long story short I had twisted the knob an hour earlier and forgot. After a couple jumps on the FM and linkage checking, I remembered the knob. I'm gonna leave it alone from now on!!
It should move though.
Good Luck,
Rob
It should move though.
Good Luck,
Rob
Harvest Moon
Gold Member
- Joined
- Nov 16, 2007
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- 357
- Tractor
- Kubota L3400 HST-F
Mine was stuck so solid when I got my L3400 that I wasn't sure it was supposed to move.
After determining that it was, I soaked the shaft with WD-40 for about 24 hours. Of course, it still didn't budge but after puting alternating CCW and CC pressure with hand power for 15 or 20 tries and more WD-40, I sensed that it budged, probably 1/128th of an inch. Back and forth 30 more times and more WD-40, now I can turn it with my pinky.
Persistence may be a good alternative to force for this one. LOL
After determining that it was, I soaked the shaft with WD-40 for about 24 hours. Of course, it still didn't budge but after puting alternating CCW and CC pressure with hand power for 15 or 20 tries and more WD-40, I sensed that it budged, probably 1/128th of an inch. Back and forth 30 more times and more WD-40, now I can turn it with my pinky.
Persistence may be a good alternative to force for this one. LOL
asylum575
Platinum Member
ampsucker
Platinum Member
it may seem obvious, but it really is hard to move when the weight of the mower deck is on it. make sure you raise the 3-pt hitch and deck if attached up so it frees up the linkage on the knob. if that doesn't do it, take a look under the machine and make sure there aren't any sticks or other gunk jammed in the threads or the little stepped cog that the mounting arms settle into.
amp
amp
OP
LBrown59
Super Star Member
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- Oct 27, 2004
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- 2003 Kubota BX1500/2004 Kubota Bx23/2005 Kubota BX1500
http://i283.photobucket.com/albums/kk286/lb59/100_2316.jpgfih25 said:
I don't have the mower on it.
I was trying to adjust the knob to control the tiller lift/lower speed.
OP
LBrown59
Super Star Member
- Joined
- Oct 27, 2004
- Messages
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- Tractor
- 2003 Kubota BX1500/2004 Kubota Bx23/2005 Kubota BX1500
Sprayed it yesterday with wd40 several times .
Was still stuck this morning.
Sprayed it with PB Rust Buster.
Taped it with a hammer a few times.
Clamped a small pair of vise grips on the shaft not the plastic knob.
Gave a fairly firm tug on the vice grips and it broke free.
Lubed it up good with white grease amd it turns free and easy now.
Think I will clean it and lube it at each engine oil change.
Was still stuck this morning.
Sprayed it with PB Rust Buster.
Taped it with a hammer a few times.
Clamped a small pair of vise grips on the shaft not the plastic knob.
Gave a fairly firm tug on the vice grips and it broke free.
Lubed it up good with white grease amd it turns free and easy now.
Think I will clean it and lube it at each engine oil change.
ampsucker
Platinum Member
yep, i WAS thinking of the mower height knob. sorry bout that! sounds like they both suffer from a similar problem, though.....
So I was working on my BX2230 today trying to get to the hydraulic system fan, and unscrewed the 3 point lowering speed knob... fluid came out 
I quickly realized that was a mistake! I screwed it back in immediately but I am worried it is broken now. What can I do to fix it?
I quickly realized that was a mistake! I screwed it back in immediately but I am worried it is broken now. What can I do to fix it?
radioman
Super Member
I suspect its fine. It sounds like you lost the retainer ring stop of some sort. On mine the valve goes only so far. Have you tested to see if if still lowers and control the speed of lowering the 3 pt arms ?
I'm a little late to this thread, but what the heck....
I new at all this stuff and digging for knowledge. THIS subject is actually something I can address with "expertise".
My new to me B20 came with a lowering adjuster that was non turning.
I tried my maximum manual twist, which though not as vicious as it used to be, is still pretty reasonable. No joy.
Knowing from reading the manual that it was supposed to turn, and the knob being metal, not plastic, I first put some penetrating oil on it. After a while I searched out my rounded jaw channel-locks grabbed the knob and .... nothing but scraped up knob and a bit of twisting of the rod. Scary stuff brute twisting a strange knob.
To help eliminate scarring up the knob some more, I tightened up the pliers
and took a stronger grip. I cranked in both directions, being mindful of not
making the shaft torque much. Ever so slowly I got it to tighten a smidge.
I then worked it back and forth, and little by little the shaft freed up!
The system now works as advertised.
The moral of the story seems to be that one should keep this thing lubed up and exercised on a regular basis, perhaps while doing the "10 hour" joint greasing routine.
And, perhaps this is a system that is underutilized because of misunderstanding or lack of knowledge as to it's benefits.
OK old hands, what's the poop on best practices with the 3-point lowering speed adjustments.
Regards,
Dennis
I new at all this stuff and digging for knowledge. THIS subject is actually something I can address with "expertise".
My new to me B20 came with a lowering adjuster that was non turning.
I tried my maximum manual twist, which though not as vicious as it used to be, is still pretty reasonable. No joy.
Knowing from reading the manual that it was supposed to turn, and the knob being metal, not plastic, I first put some penetrating oil on it. After a while I searched out my rounded jaw channel-locks grabbed the knob and .... nothing but scraped up knob and a bit of twisting of the rod. Scary stuff brute twisting a strange knob.
To help eliminate scarring up the knob some more, I tightened up the pliers
and took a stronger grip. I cranked in both directions, being mindful of not
making the shaft torque much. Ever so slowly I got it to tighten a smidge.
I then worked it back and forth, and little by little the shaft freed up!
The system now works as advertised.
The moral of the story seems to be that one should keep this thing lubed up and exercised on a regular basis, perhaps while doing the "10 hour" joint greasing routine.
And, perhaps this is a system that is underutilized because of misunderstanding or lack of knowledge as to it's benefits.
OK old hands, what's the poop on best practices with the 3-point lowering speed adjustments.
Regards,
Dennis
Chilly807
Elite Member
Once you`ve got it moving, smear some grease around the shaft where it goes into the casing. And stop washing the tractor, water gets around the shaft and rusts it solid.
My 2 cents
My 2 cents
Or leave it sitting in the rain etc. One thing nice about the ROPS is that it makes a good tent support if you bungee a good sized tarp over your rust prone iron if leaving it out.
Dennis
