JD 3x20 Series...Narrow Track????

[TMR]

As I look at various CUTs in the 35 HP range the JD 3x20 series quickly comes to the forefront...along with Kubota L series...xx00 and xx40.

One question I have is track width. The 3x20 series appears to be quite narrow...minimum width listed as 40.6" for the 3x20 JDs and 60"-65" for the 35-40HP Kubota's xx00 and xx40 series.

Stability is important to me and it width seems to be pretty important to a tractors footprint and stability? When I look at a 3x20 series at the JD dealers it does actually look pretty narrow...to a fault??

Am I seeing this wrong OR is the JD 3x20 series really more narrow than its competitors? Maybe JD did this on purpose...I don't think I need a more narrow tractor...at least up to a point.

Your thoughts??? Thanks...still learning...Tom R

 

[beenthere]

I've had that foot print on my 4300, and it is not too narrow. Very well balanced on slopes, IMO. Narrowest with r-4's I suspect, and the Ag tires/rims can be turned for wider stance.

The frame size and stability works very well for me.

 

[TMR]

I've had that foot print on my 4300, and it is not too narrow. Very well balanced on slopes, IMO. Narrowest with r-4's I suspect, and the Ag tires/rims can be turned for wider stance.

The frame size and stability works very well for me.

Thanks Beenthere...is the JD a more narrow width...or ?? Tom R

 

[CinderSchnauzer]

Here's a copy from the 3x20 Owners Manual for R1 Tires also a link to the manual. It's towards the end under Wheel Spacing"

With R3's or R4's the wide measurement is around 58"

OMLVU19809_L8


Rear Tire Size
Position
17.5L-24 8PR R4 TI
13.6-28 4PR R1 TI
1 (Narrow)
N/A
N/A
2
1.3 m (51 in.)
1.3 m (51 in.)*
3
1.4 m (55 in.)
1.4 m (55 in.)
4
1.5 m (59 in.)
1.5 m (59 in.)
5
1.6 m (63 in.)
1.6 m (63 in.)
6
1.7 m (67 in.)
1.7 m (67 in.)
7
1.8 m (71 in.)
1.8 m (71 in.)
8 (Wide)
1.9 m (75 in.)
1.9 m (75 in.)

 

[jenkinsph]

Here's a copy from the 3x20 Owners Manual for R1 Tires also a link to the manual. It's towards the end under Wheel Spacing"

With R3's or R4's the wide measurement is around 58"

OMLVU19809_L8


Rear Tire Size
Position
17.5L-24 8PR R4 TI
13.6-28 4PR R1 TI
1 (Narrow)
N/A
N/A
2
1.3 m (51 in.)
1.3 m (51 in.)*
3
1.4 m (55 in.)
1.4 m (55 in.)
4
1.5 m (59 in.)
1.5 m (59 in.)
5
1.6 m (63 in.)
1.6 m (63 in.)
6
1.7 m (67 in.)
1.7 m (67 in.)
7
1.8 m (71 in.)
1.8 m (71 in.)
8 (Wide)
1.9 m (75 in.)
1.9 m (75 in.)

Cinder, those tire sizes appear to be for a 4xxx series.

 

[TMR]

Cinder, those tire sizes appear to be for a 4xxx series.

I also don't understand the effective difference between "minimum" and "maximum" track width? The specification pages all seem to focus on "minimum" track width?? How do "most" run their tractor?...and how are they set-up from the factory? DO you lose anything by running at max width?...other than getting between limited spaces?

Again...is my observation incorrect? ie; is the 3x20 series JD a more narrow footprint tractor than the comparable Kubota Lxx00 and Lxx40 series???

AND...isn't width one of the important factors in stability?

Thanks...still learning...Tom R

 

[foggy1111]

I also don't understand the effective difference between "minimum" and "maximum" track width? The specification pages all seem to focus on "minimum" track width?? How do "most" run their tractor?...and how are they set-up from the factory? DO you lose anything by running at max width?...other than getting between limited spaces?

Again...is my observation incorrect? ie; is the 3x20 series JD a more narrow footprint tractor than the comparable Kubota Lxx00 and Lxx40 series???

AND...isn't width one of the important factors in stability?

Thanks...still learning...Tom R

There are several tire options for the 3x20 series tractors. Many of these tractors are sold with R4 Industrial tires. The width of the tractor with THE BIG R4's is either 58" or 60" depending how you position the wheels. The tractor width is set up to use 5' implements (60" rotary cutter or 61" loader bucket for example). I think you will find comparable widths in the other brands.

 

[jenkinsph]

foggy,
While several tire sizes are available the 17.5/24 R4 is for the 4xxx series. That is what I have on the 4520 and 110tlb which are both set up for approximately a 72" overall width.

Don't want to confuse the new poster.

 

[beenthere]

Then is it the 4xxxx series or is it the 4x20 series? Don't want to confuse anyone

 

[CinderSchnauzer]

Cinder, those tire sizes appear to be for a 4xxx series.

Straight out of the JD Manual:

OMLVU19809 Issue L8
Compact Utility Tractor
3120 PIN(310001-)
3320 PIN(330001-)
3520 PIN(358001-)
3720 PIN(380001-)
OPERATOR担 MANUAL
North American Version
Litho in U.S.A.

 

[MrChris]

When I had physically looked at the 3120 model in the past, I didn't think the tire track was any if much narower than the Kubota L3400 or the Mahindra 3215 models I was looking at. However, if you do a search you will find a thread that talks about adding axle spacers to add more width and stability to this series. I did notice that the front tires tracked a little wider than the rear. When I operated the FEL up and down the whole tractor seemed to shutter a bit more than the others. Deere recommends highly to have some counter balance on the 3 point and I'm sure filling the rear tires would help. I'm not sure if possibly there is a higher center of gravity causing this in these models., but both the Kubota and Mahindra felt more stable. Oh, by the way, if you can measure the width from the center to center of each rear tire, my Mahindra measures 48", if this helps for comparison, or outside tire tread to outside tire tread measurement on mine with R4s is 61".

 

[foggy1111]

foggy,
While several tire sizes are available the 17.5/24 R4 is for the 4xxx series. That is what I have on the 4520 and 110tlb which are both set up for approximately a 72" overall width.

Don't want to confuse the new poster.

If you read the OP's 1st post....He clearly is asking about the 3x20 series tractor width. NO??.....or did I miss something?

I beleive its YOU that is having trouble with the new poster's question. (grin)

Also...Deere DOES have some very strange data in some of their literature (such as this tire width info). I think they must include orchard tractors or some specialty width stuff.....as some of the dimensions I have seen printed are a bit odd. You have to wonder sometimes.....who proof-reads tech data for them?

 

[TMR]

I guess I am confused why the 3x20 series "minimum tread width" appears smaller than the comparables...as I posted? Probably not as it appears in the published data?

Either the stats are correct...and the 3x20 JDs ARE a bit narrower...or they are not?

Thanks...Tom R

 

[foggy1111]

I guess I am confused why the 3x20 series "minimum tread width" appears smaller than the comparables...as I posted? Probably not as it appears in the published data?

Either the stats are correct...and the 3x20 JDs ARE a bit narrower...or they are not?

Thanks...Tom R

A bit narrower than what? How many inches and what model are you comparing to? I already posted a typical width above with R4 tires (58" to 60" depending on which way you turn the wheels). With R1 (Ag type tires) the wheels are adjustable in up to 8 width settings. Turf tires are still different.

Add to that they sometimes post the inside dimentions as minimum as well as outside (which I have seen and posted above).

So....specifically......what are you comparing to? Lots of differences depending on tractor series compared to.

You can go to John Deere's website....and in the site you can go to the technical specs for each model which will give you all the available tire and wheel combination's available.....and the front and rear width's. This data IS very complete and accurate. My tractor is 59.5" wide with the big R4's (if my memory serves) and I just rotated my tires from left to right to pick up two inches in width when I filled the tires with fluid this past week. My five foot bucket and five foot implements work just right with this tire width. Wider would NOT be better....for my situation.

 

[jenkinsph]

If you read the OP's 1st post....He clearly is asking about the 3x20 series tractor width. NO??.....or did I miss something?

I beleive its YOU that is having trouble with the new poster's question. (grin)

Also...Deere DOES have some very strange data in some of their literature (such as this tire width info). I think they must include orchard tractors or some specialty width stuff.....as some of the dimensions I have seen printed are a bit odd. You have to wonder sometimes.....who proof-reads tech data for them?

I didn't have any problems with the posters questions but had brought up the fact that in Cindershnauzers post that the 17.5 24 tires were for the 4x20 series. You then commented that several sizes were available which is true but not the 17.5 24 R4's. Just to clarify I didn't mean you were incorrect.

 

[TMR]

Thanks Guys...I think my effort to use the "minimum width" stats to compare tractors has got too confusing...at least to me

Fundamental question is...Is the JD 3x20 series a bit on the narrow size compared to the Kubota Lxx00 series and Lxx40 series...in each case using comparable HP and weight models???? OR...do the 3x20 series just LOOK narrow when standing behind one in the dealers lot w/turf tires.

Sorry if I made my post too much detail and using minimum width threw people off...

Thanks...Tom R

 

[Rob-D]

Thanks Guys...I think my effort to use the "minimum width" stats to compare tractors has got too confusing...at least to me

Fundamental question is...Is the JD 3x20 series a bit on the narrow size compared to the Kubota Lxx00 series and Lxx40 series...in each case using comparable HP and weight models???? OR...do the 3x20 series just LOOK narrow when standing behind one in the dealers lot w/turf tires.

Sorry if I made my post too much detail and using minimum width threw people off...

Thanks...Tom R

Are we talking minimum width or inside width? A 3320 with large R4's in the widest position measure just about 60" from outside of tire to outside of tire. The tires are 15" wide each, this makes the inside width just about 30". I can't imagine a minimum outside width be 40", it's not possible. Am I missing something in the questions, if so I apologize.
rob

 

[TMR]

Are we talking minimum width or inside width? A 3320 with large R4's in the widest position measure just about 60" from outside of tire to outside of tire. The tires are 15" wide each, this makes the inside width just about 30". I can't imagine a minimum outside width be 40", it's not possible. Am I missing something in the questions, if so I apologize.
rob

Rob...I am looking at page 5 ("3000 Twenty Series) of the JD 3000 Series brochure. Bottom right is a back view with dimensions shown..."MN Width 40.6" (1030 mm)"...the "narrative brackets" appear to be near inside of tire. It also shows "Width 68.4" (1737 mm)"...which appears to be outside tread measurements.

My question comes from two points...1) standing behind a couple of 3x20 JDs at dealership they "appear" narrow when visually compared with similar CUTs as I have cited above...and 2) the comparable "minimum width" stats on other CUTs...as cited above...is larger. I will be using on a variety of terrain and believe the track width may help with stability...thus my question.

Maybe all the stats has confused my question? Is the 3x20 JD series a bit more narrow than it's primary competitors?

Sorry if I have created a confusing thread...normally this type of question gets nailed with solid thoughts/answers...my bad...Thanks...Tom R

 

[RollTideRam]

Put a tape measure in your truck and you will know for sure. JC

 

[jenkinsph]

Put a tape measure in your truck and you will know for sure. JC

I agree:thumbsup: