Aeromechanick
New member
Lifetime Member
Equipment
Kubota M5700 Hydraulic Shuttle, Kubota M105SHD, Vrisimo Flails
Greetings all, first post here.
I own a Kubota M5700 Hydraulic Shuttle that is used for mowing brush mostly.
Today I was extracting a stuck vehicle (massive snowfall) and the tractor was working great.
I pulled the tractor into the driveway, neutralized the shuttle shift lever, took it out of gear and applied the parking brake.
When I remounted the tractor 60 seconds later, I throttled up to 1500rpm, let off the parking brake, depressed clutch, put it in gear, flipped the shuttle shift to forward and let out the clutch.
nothing.
Moved the clutch, shuttle shifter into myriad positions…nothing. When I let out the clutch it doesn’t even vibrate differently…just smooth running engine, no tractor movement whatsoever. No perceived clutch engagement, slip, chatter…no sensation of any mechanical engagement at all.
It’s cold out.
I popped the hydraulic shuttle valve cover off, all linkage is intact and functioning. When I actuate the clutch, the valve spool shaft moves in and out. When I move the shuttle shift lever, its associated valve spool shaft moves in and out corresponding to the fwd, neutral, and reverse detents.
Did I just shear an o-ring off inside and fluid is bypassing?
Are those bench repairable?
Please help
Happy Friday to all!
-Nick
I own a Kubota M5700 Hydraulic Shuttle that is used for mowing brush mostly.
Today I was extracting a stuck vehicle (massive snowfall) and the tractor was working great.
I pulled the tractor into the driveway, neutralized the shuttle shift lever, took it out of gear and applied the parking brake.
When I remounted the tractor 60 seconds later, I throttled up to 1500rpm, let off the parking brake, depressed clutch, put it in gear, flipped the shuttle shift to forward and let out the clutch.
nothing.
Moved the clutch, shuttle shifter into myriad positions…nothing. When I let out the clutch it doesn’t even vibrate differently…just smooth running engine, no tractor movement whatsoever. No perceived clutch engagement, slip, chatter…no sensation of any mechanical engagement at all.
It’s cold out.
I popped the hydraulic shuttle valve cover off, all linkage is intact and functioning. When I actuate the clutch, the valve spool shaft moves in and out. When I move the shuttle shift lever, its associated valve spool shaft moves in and out corresponding to the fwd, neutral, and reverse detents.
Did I just shear an o-ring off inside and fluid is bypassing?
Are those bench repairable?
Please help

Happy Friday to all!
-Nick
Attachments
-
402.2 KB Views: 17
-
516.8 KB Views: 16
-
617.9 KB Views: 16
Last edited: