Hydraulic shuttle question

   / Hydraulic shuttle question #1  

cstp

New member
Joined
Dec 13, 2012
Messages
15
Location
Pa
Tractor
Kubota M7040
Several guys on this forum have remarked that on their tractors with hydraulic shuttle, they rarely use the foot clutch to switch directions anymore. I have a Kubota M7040 w/ hydraulic shuttle, and while I like being able to move from forward to reverse without coming to a stop, I almost always use the clutch. Most of the time I am working at higher RPMs, and using the shuttle without clutching results in whiplash. It also doesn't seem that great for the tractor to move from forward to reverse so suddenly. What am I doing wrong here?
 
   / Hydraulic shuttle question #2  
I use the clutch on the forward/revere hand lever just like the foot clutch, traveling at anything other than very slow speed and changing direction will result in whiplash no matter how you choose to clutch it. We use ours mostly for brush/grass cutting with a Woods 10 foot rotary cutter and keep the RPM at 540 PTO and used properly, we get no whiplash.
 
   / Hydraulic shuttle question #3  
Here's what works for me with a GST transmission:

For slow ground speed operation with revs kept high by setting the hand throttle:
1) Shift shuttle to N.
2) Use brake pedal to stop tractor.
3) Shift shuttle to fwd or rev.

For any ground speed greater than slow (subjective), I shut the throttle lever down and use the foot throttle.
1) Shift shuttle to N.
2) Drop revs.
3) Use brake pedal to stop tractor.
4) Shift shuttle to fwd or rev.
5) Raise the revs as needed.

I never reverse directions without pausing in N before making the direction change shift.
 
   / Hydraulic shuttle question #4  
i usually run at 1500rpms so i dont use the clutch that much if any going from farward to reverse.now if im running at a higher rpms then ill use the clutch.
 
   / Hydraulic shuttle question #5  
This is a quote from my M7040 operators manual(page #22) under heading of hyd shuttle shift lever.

This shifting does not require clutch operation

Important: The hyd shuttle lever may be shifted while the tractor is moving slowly.
 
   / Hydraulic shuttle question #6  
I'm still used to twenty five years with a manual transmission. I use the clutch - force of habit. Sometimes I'll remember and only use the F/R hyd shuttle lever - usually when I'm doing FEL activity.
 
   / Hydraulic shuttle question #7  
I never reverse directions without pausing in N before making the direction change shift.

Exactly how I do it. I don't use the brake unless going really fast and when going fast, seldom do I switch directions. Most forward to backward shifts are at slow speeds anyway, so the pause between works perfect. It allows the tractor to stop on it's own.
 
   / Hydraulic shuttle question #8  
I'm still used to twenty five years with a manual transmission. I use the clutch - force of habit. Sometimes I'll remember and only use the F/R hyd shuttle lever - usually when I'm doing FEL activity.

It took me several months to stop using the foot clutch, same for my sons. We went from quite a few years with a synchronized-shuttle shift Case and before that non shuttle shift tractors.
 
   / Hydraulic shuttle question #9  
the hard thing about the hydro shift is when you have 3 people with differant ideas an ways of operating the hydro shuttle.as most know here i had a buddy of mine show me all the tricks to running the hydro shuttle.then i adjusted those tricks to the way i do things.then my brother has his way of running the shuttle.an he trys to tell me his RIGHT way of running it.so i just try to run it my way when i can.
 
   / Hydraulic shuttle question #10  
I don't know how your M7040 works, buy my old John Deere reverser is used in conjunction with the foot throttle. While you can set the hand throttle to a ' certain ' RPM and use the hand reverser lever to change direction, even using the clutch... You usually run the tractor at that ' certain ' RPM with the foot throttle, let up on the foot throttle to idle, reverse direction at near idle, then press back on the foot throttle back up to RPM as you go in the new direction. That's how I was taught when I was little.. If you listen to heavy equipment operators, thats how they change direction too...
 
 
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