sea2summit
Elite Member
With my M4 I feather the brakes and the clutch if I'm doing really precision stuff, just to take the edge off the clutch engagement. Works for me when I'm stacking pallets in the shed or packing up to a hitch etc.
M5-111 Clutch operation
- Thread starter rwskinner
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- kubota m5-111
5030
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- Feb 21, 2003
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- SE Michigan in the middle of nowhere
- Tractor
- Kubota M9000 HDCC3 M9000 HDC
If it's a hydraulic shuttle, the 'clutch' pedal don't act on a physical clutch because there isn't one. All that is in the bellhousing is a damper plate.
The 'clutch pedal' acts on the hydraulic proportioning valve and when the fluid is cold, the engagement is abrupt. The proportioning valve 'senses' the load and controls the traveling pack accordingly but cold fluid cause an abrupt lock up. Once the tractor's fluid is warm, it smooths out.
I won't run anything but a hydraulic shuttle simply because the clutch pack's failure 'wearing out' is pretty rare and unlike a conventional dry clutch, you never have to split the unit to replace it. Having said that however, if you do somehow manage to wear out the travelling pack, you will have tp split it to service it as it's only accessable that way. You can pull the back cover off the pto and see it, but you cannot reach it as it's in front of the rear drive components. Same applies to the wet clutch PTO pack. You can see it but not touch it (without a split).
I don't know if Kubota address the issues with the wet pack PTO clutch but both mine suffer from a weak PTO brake and I always use an over running external clutch (ratcheting) when using driven equipment that will over run the PTO id shut off abruptly. I heard that Kubota had addressed that issue on later models but mine requires the over running clutch.
I have over 6000 hours on one of my hydraulic shuttle Kubota's and I've never had to fiddle with the clutch pack or increase the lockup pressure due to plate wear and that unit does a lot of loader work too.
The other nice thing is you can 'half clutch' the pack and never worry about wearing it out, unlike a conventional dry clutch.
Really like the column mounted shuttle lever for front end loader work. You keep your feet on the floor and do everything with your left hand. Takes a bit of getting used to but once you master it, you won't go back.
Whatever you do however, don't cheap out on fluid. I either run Kubota SUDT or Chevron All Weather Synthetic fluid. Neither is cheap but the wet packs really require a premium synthetic fluid.... and, both mine operate a bit smoother in cold weather with the Chevron. Run Kubota filters as well. In fact I run Kubota filters exclusively. Not that much more than the other brands anyway.
The 'clutch pedal' acts on the hydraulic proportioning valve and when the fluid is cold, the engagement is abrupt. The proportioning valve 'senses' the load and controls the traveling pack accordingly but cold fluid cause an abrupt lock up. Once the tractor's fluid is warm, it smooths out.
I won't run anything but a hydraulic shuttle simply because the clutch pack's failure 'wearing out' is pretty rare and unlike a conventional dry clutch, you never have to split the unit to replace it. Having said that however, if you do somehow manage to wear out the travelling pack, you will have tp split it to service it as it's only accessable that way. You can pull the back cover off the pto and see it, but you cannot reach it as it's in front of the rear drive components. Same applies to the wet clutch PTO pack. You can see it but not touch it (without a split).
I don't know if Kubota address the issues with the wet pack PTO clutch but both mine suffer from a weak PTO brake and I always use an over running external clutch (ratcheting) when using driven equipment that will over run the PTO id shut off abruptly. I heard that Kubota had addressed that issue on later models but mine requires the over running clutch.
I have over 6000 hours on one of my hydraulic shuttle Kubota's and I've never had to fiddle with the clutch pack or increase the lockup pressure due to plate wear and that unit does a lot of loader work too.
The other nice thing is you can 'half clutch' the pack and never worry about wearing it out, unlike a conventional dry clutch.
Really like the column mounted shuttle lever for front end loader work. You keep your feet on the floor and do everything with your left hand. Takes a bit of getting used to but once you master it, you won't go back.
Whatever you do however, don't cheap out on fluid. I either run Kubota SUDT or Chevron All Weather Synthetic fluid. Neither is cheap but the wet packs really require a premium synthetic fluid.... and, both mine operate a bit smoother in cold weather with the Chevron. Run Kubota filters as well. In fact I run Kubota filters exclusively. Not that much more than the other brands anyway.
