Kubota Transmissions

[Ob1kubota]

Mr. Collins... M series ending HD S/N 50587.... You have two choices either the Hydraulic shuttle model or the Synchro model. Very simply put on the HD model it allows you to go from forward to reverse WITHOUT depressing the clutch a ( proportional reducing valve). In fact the tractor should be moving slowly. The modulation valve in series with the directional wet clutch pack takes care of the shock load that the Hydraulic transmission would experience.
On the other hand the Synchro transmission REQUIRES the use of the clutch when going from Forward to Reverse and vice versa because of the simpler single disc clutch plate that must be disengaged from the flywheel during a directional change.
The only time you wouldn't use your clutch on an HD model is going from forward to reverse. You must use the clutch when going from range to range and speed to speed or damage will occur during the service life of the product. The only advantage I see from a sales standpoint is it's a great value for duty-cycles such as use of a front end loader. From a service standpoint it's not going to be setting in one of your service bays for a new clutch and pressure plate from abusive Wives and Truckers' who don't believe in clutches anyway. HAHAHAHAHAHAHAHA!

 

[texasjohn]

Doc_Bob, I personally put my shoe on only one part of the rocker at a time... I did this from safety considerations when I started learning how to use the HST and have continued. I didn't want to get confused... or thrown off balance... and reverse direction unintentionally.

Net.. I think that experience, personal preference, length of rocker pedal and shoe all determine exactly how a driver chooses to use the pedal... if what you are doing works for you and you are comfortable doing it... then stay with it!!

 

[texasjohn]

Doc_Bob, I personally put my shoe on only one part of the rocker at a time... I did this from safety considerations when I started learning how to use the HST and have continued. I didn't want to get confused... or thrown off balance... and reverse direction unintentionally.

Net.. I think that experience, personal preference, length of rocker pedal and shoe all determine exactly how a driver chooses to use the pedal... if what you are doing works for you and you are comfortable doing it... then stay with it!!

 

[Muleskinner]

I'm glad my M7040 is an "HD." I'm not sure why you would want a non hydraulic shuttle shift. The dealer tech explained to me the wet clutch pack is by far more heavy duty than the mechanical shuttle shift single disk dry clutch. Hence the "HD" behind the model designator. "HD" standing for heavy duty I would think. If it stood for hydraulic shuttle it would be "HS."

I know my L39 has a dry single disk clutch, but you do not have to use it to use the shuttle shift. Also the GST trans shifts on the fly. It also has a wet clutch pack inside of the trans that releases when you shift gears to prevent shock loads and to allow the trans to shift. The gear shift only actuates an electrical sensor to shift the trans.

 

[Muleskinner]

I'm glad my M7040 is an "HD." I'm not sure why you would want a non hydraulic shuttle shift. The dealer tech explained to me the wet clutch pack is by far more heavy duty than the mechanical shuttle shift single disk dry clutch. Hence the "HD" behind the model designator. "HD" standing for heavy duty I would think. If it stood for hydraulic shuttle it would be "HS."

I know my L39 has a dry single disk clutch, but you do not have to use it to use the shuttle shift. Also the GST trans shifts on the fly. It also has a wet clutch pack inside of the trans that releases when you shift gears to prevent shock loads and to allow the trans to shift. The gear shift only actuates an electrical sensor to shift the trans.

 

[jcollins]

BTW, I love your screen name I did not get the full meaning of it untill I saw your siganature. I am waiting on the special edditino with all 6 movies. Heard a rumor that they may remake the orginal three. One can only wait and hope. We are starting to sell more and more of the HD units in box blade applications where the operators are shifting from forward to reverse at almost full engine rpms. We have seen a couple shear the main shaft going thru the transmission but only two out the 40 or 50 we have sold so far. The SD units (mechanical shuttles) just require to much clutching for the contractors to even consider them. (contractors in the box blade business).

 

[jcollins]

BTW, I love your screen name I did not get the full meaning of it untill I saw your siganature. I am waiting on the special edditino with all 6 movies. Heard a rumor that they may remake the orginal three. One can only wait and hope. We are starting to sell more and more of the HD units in box blade applications where the operators are shifting from forward to reverse at almost full engine rpms. We have seen a couple shear the main shaft going thru the transmission but only two out the 40 or 50 we have sold so far. The SD units (mechanical shuttles) just require to much clutching for the contractors to even consider them. (contractors in the box blade business).

 

[Muleskinner]

I am a grading contractor. Grading house pads, building pads, roads, debrushing, Etc, is my main business. I would never.Repeat. NEVER EVER shift my shuttle shift on either my M7040HD or my L39 before letting off the throttle. To do so would be sheer stupidity.

I would not do it with the JD 210LE either. Now you know why I buy new equipment, not used. /forums/images/graemlins/smirk.gif It's the idiot operators like that that tear up equipment!

 

[Muleskinner]

I am a grading contractor. Grading house pads, building pads, roads, debrushing, Etc, is my main business. I would never.Repeat. NEVER EVER shift my shuttle shift on either my M7040HD or my L39 before letting off the throttle. To do so would be sheer stupidity.

I would not do it with the JD 210LE either. Now you know why I buy new equipment, not used. /forums/images/graemlins/smirk.gif It's the idiot operators like that that tear up equipment!