5030
Epic Contributor
- Joined
- Feb 21, 2003
- Messages
- 26,052
- Location
- SE Michigan in the middle of nowhere
- Tractor
- Kubota M9000 HDCC3 M9000 HDC
Probably has dry steel on steel pivot pivot points on the loader (I don't see any grease oozing from them).... Kubota uses steel on steel pivots on their loaders, unlike commercial units that use 6-60 Bronze bushings and the plain steel on steel pivots must be kept greased. Kubota recommends every 10 hours. I grease mine probably every 5.
What I did with my M's was I ordered a set of parallel linkages from my dealer, copied them and plasma cut on my CNC table, a new complete set and returned the set I purchased from my dealer so now I have my own set. What I did was machine a set of bronze bushes and installed them in the welded on stock steel bosses on the tractors. That eliminates most all the friction under load and the steel on steel stock pivots will eventually wear oval anyway. The insert bronze bushes can be easily replaced when they wear out. Keep in mind that every loader will have different sized parallel linkages depending on the loader, so what works on my M's won't necessarily fit yours.
The other less desirable impact of upping the hydraulic pressure is, the cylinders will fail (seals) sooner and it puts undue strain on all the components, not just the loader.
My philosophy is. you want more lift, buy a larger unit.
I've always been able to 'float' the rears (and I run Kubota cast centers on both my M's). Once the rears are in light contact with Terra-Firma, the pucker factor climbs real quick like, something I don't like.
Maybe Kubota sets them light to overcome any liability or increase the longevity of the loaders. I don't know. All I know is, you want more lift, buy a larger unit.
Above all, keep them greased regularly to mitigate friction between the pivot points. Excessive friction between dry pivots decreases loader capacity and promotes wear and will eventually cause excessive slop in them and possibly pivot pin failure down the road.
What I did with my M's was I ordered a set of parallel linkages from my dealer, copied them and plasma cut on my CNC table, a new complete set and returned the set I purchased from my dealer so now I have my own set. What I did was machine a set of bronze bushes and installed them in the welded on stock steel bosses on the tractors. That eliminates most all the friction under load and the steel on steel stock pivots will eventually wear oval anyway. The insert bronze bushes can be easily replaced when they wear out. Keep in mind that every loader will have different sized parallel linkages depending on the loader, so what works on my M's won't necessarily fit yours.
The other less desirable impact of upping the hydraulic pressure is, the cylinders will fail (seals) sooner and it puts undue strain on all the components, not just the loader.
My philosophy is. you want more lift, buy a larger unit.
I've always been able to 'float' the rears (and I run Kubota cast centers on both my M's). Once the rears are in light contact with Terra-Firma, the pucker factor climbs real quick like, something I don't like.
Maybe Kubota sets them light to overcome any liability or increase the longevity of the loaders. I don't know. All I know is, you want more lift, buy a larger unit.
Above all, keep them greased regularly to mitigate friction between the pivot points. Excessive friction between dry pivots decreases loader capacity and promotes wear and will eventually cause excessive slop in them and possibly pivot pin failure down the road.
5030
Epic Contributor
- Joined
- Feb 21, 2003
- Messages
- 26,052
- Location
- SE Michigan in the middle of nowhere
- Tractor
- Kubota M9000 HDCC3 M9000 HDC
I would not ever expect any owner tp be able to machine the stock welded in bushings on a Kubota loader, because the have to be line bored to accept bronze bushings, something that requires special tooling (that I have) but not something that is common place, plus the bushings have to be machined to fit size and cross drilled for grease flow. Commercial machines usually have insert bushings. Did a Case Extenda Hoe last year and machined a new set of bushings for it as the swing pivot bush was shot. Easy to do with the correct machine tools.
mark in portugal
Silver Member
I bored my FEL for new pins without a line boring machine; I invented a method to use a wood router with a guide bearing.
www.tractorbynet.com
Some parts I cut off and made replacements to weld on.
I also increased the system hydraulic pressure on my tractor from 175 to 225 bar.
As the extra load is rarely used, it rarely adds more wear. If I needed to use that power all the time, I would get a bigger machine.
It works well.
I also added a hydraulic pressure gauge to the dashboard. I find it helpful.
FEL rebuild
I wanted to rebuild my FEL for a long time; it痴 more than 50 years old and all the pivot holes are egg shaped, the pins worn out, and generally it was a shake rattle and roll situation. When the top mount cracked, it seemed time to get into it. I don稚 know if any of this will be useful to...
www.tractorbynet.com
Some parts I cut off and made replacements to weld on.
I also increased the system hydraulic pressure on my tractor from 175 to 225 bar.
As the extra load is rarely used, it rarely adds more wear. If I needed to use that power all the time, I would get a bigger machine.
It works well.
I also added a hydraulic pressure gauge to the dashboard. I find it helpful.
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