Shuttle vs. Creeper: Chinese Tractors -- Jinma Farmpro Agracat  -- Chinese Tractors Discussion Forum and Review Shuttle vs. Creeper: Chinese Tractors -- Jinma Farmpro Agracat -- Chinese Tractors Discussion Forum

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Discussion Boards > Active Subjects > Messages as Posted > Chinese Tractors -- Jinma Farmpro Agracat Forum

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 09-16-2006, 23:26 Post: 135227
wva-dsk



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 Shuttle vs. Creeper

Looking at buying my first tractor, and the Jinma models are pretty appealing. But I need to learn some fundamentals first. What are the benefits of Shuttle Shift over a Creeper Gear, and visa verse? Why would you want one verses the other?

Thanks,
WVA-DSK






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 09-17-2006, 07:03 Post: 135229
greg_g



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 Shuttle vs. Creeper

When you get a creeper equipped 200 series, you'll doubled the number of normal gear ratios - but all at maybe half or less the normal speed. With creeper engaged, you've got the tractor's normal six forward (3 high range + 3 low range) and two reverse (1 high + 1 low). Engage creeper and you've now got six more forward (3 creeper high + 3 creeper low) and two more reverse (1 creeper high + 1 creeper low). Total 12 forward/4 reverse. I owned two JM254s, and never found a use for creeper range; too slow for my typical farm tasks. But I guess some folks find it handy for selected ground engagement implements - rototiller being at the top of the list.

So when I got rid of the Jinmas, I specified a shuttle shift in the replacement KAMA. It takes reverse gear off the gear shift lever and puts it on a 2nd lever: Forward/Reverse. You select the gear you want with one lever, then use the 2nd lever to select whether you want to use that ground speed in forward or reverse. So for every forward gear you have, there's a proportionately fast (or slow) reverse gear. The shuttle box makes give my KAMA 8 forward gears (4 high + 4 low) and the equivelent of 8 reverse gears. Owners with front loaders swear by it, and - after my Jinma creeper (non)experience - I simply consider shuttle shift a necessity.

You must come to a complete stop to move either the creeper lever or the shuttle lever.

//greg//






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 09-17-2006, 10:57 Post: 135230
wva-dsk



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 Shuttle vs. Creeper

Thanks Greg. The one description I could find about shuttle shift out on the internet was that it was much more convenient in situations with lots of backing and forwarding, such as moving dirt around. I think as long as I can still do very low speed things, like use a roto-tiller or a sub-soiler, with the shuttle shift, then I shouldn't miss the creeper gears. Right?

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DSK






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 09-17-2006, 13:02 Post: 135232
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 Shuttle vs. Creeper

that question is likely to draw responses from all quarters. I'll hedge by saying it has a lot to do with your soil composition. Loamy soil and previously tilled soil almost certainly can be worked without creeper gears. Clay or virgin ground, that's a different story.

Best I can advise is to consider your soil type, then review each tractor ground speed in the various gears. With luck, you should be able to find a shuttle shift tractor that has low enough gearing to still do an acceptable job of tilling

//greg//






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 09-17-2006, 21:26 Post: 135238
wva-dsk



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 Shuttle vs. Creeper

Ok, that's a very useful idea. Much of my property is pasture. The soil is typically 6 to 12 inches of loam underlain by a few feet of clay, before hitting limestone bed rock. Any tilling I do will pretty much stay in the loam layer and I doubt I'll get down there and churn the clay too often. I'll probably spend a lot more time hauling logs and loads than I will busting sod, so the shuttle shift may be the better option. But I'll use that advice on looking at the speeds available on the tractors I'm looking at.

Thanks,
WVA-DSK






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 09-18-2006, 07:21 Post: 135240
kthompson



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 Shuttle vs. Creeper

I think the need of a slow ground speed comes into play with application that also needs high PTO or engine RPMs. My biggest need is with a boom mower. When using that my low gear feels like highway speed as it requires high PTO rpms and constant adjustment of the cutter head for proper clearance wih varying ground and trees being cut.

For subsoiling I don't think you would need that low of speed or I don't as long as you had a subsoiler with a shear bolt or trip. Now a subsoiler with no protection, you may.






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 09-18-2006, 20:37 Post: 135275
wva-dsk



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 Shuttle vs. Creeper

That's another area I need to know more about and should probably start a separate thread to discuss. But based on what I'm seeing in some of the forums RPM and horsepower available at the PTO have big implications for the tools you want to use. Guess I'll add that question to my list when I get down to the dealer and start debating between shuttle shift and creeper gears.

WVA-DSK






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 09-19-2006, 07:06 Post: 135281
kthompson



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 Shuttle vs. Creeper

wva-dsk,

I was very fortunate with the first tractor salesman I traded with. A real professional. I was about totally green and he would not really talk tractor until I had a frim idea on what I wanted to do with it. Then we talked equipment to do that and worked backwards to the horsepower and tractor needed for the equipment.

I wish you well with your decisons and God Bless.






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 09-19-2006, 14:23 Post: 135298
wva-dsk



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 Shuttle vs. Creeper

Thanks KT.






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 09-22-2006, 20:54 Post: 135385
earthwrks

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 Shuttle vs. Creeper

WVA: Have you looked into another type of transmission called Hydrostatic? To me it's THE best thing since sliced bread. Both my backhoe and New Holland CUT have it. It's so easy to use my 5-year old niece can use it (with me on the machine too). It makes back-and-forth work fun and easy---like loader work or mowing. Basically all you do is pick the range of torque and speed you want from 3 ranges. 1st is high torque/low speed, second is the range I use for decent torque/speed, 3rd is lower torque/high speed (about 17 mph). You set the throttle and the engine stays at a constant, optimal speed---no pressing on the "gas pedal". There's no shifting in-range from reverse to forward---a floor-mounted "go" pedal does it all. And the nice thing about this type of trans is you can set the cruise control button while you are tilling or mowing; don't like the speed? Simply throttle down, or turn off cruise control, put the "go" pedal where you want and set cruise. All things considered hydro is about 2x as fast production-wise compared to a regular manual shift-type trans. It adds about $2000 to the price of the CUT but IMHO well worth it.






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Discussion Boards > Active Subjects > Messages as Posted > Chinese Tractors -- Jinma Farmpro Agracat Forum

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