TN Series

Robert_in_NY · Mar 17, 2004

Unless you are going to use this tractor on hard pavement or concrete a lot, go with the 11.2-24's up front and 16.9-30 in the rear. The TN's are heavy and the wider tires will help you float over some softer spots (you will still sink but not as bad as the narrow tires). Now if you are using this tractor on hard surfaces, get the R-4's (can't tell you which ones as I have no idea). I use my TN mostly for field work but I did use it in and around a machine shop we were doing a foundation for. The concrete floors and driveways were extremly hard on the tires and axles for that matter as the tires would squat a lot under heavy load while using the bucket and trying to steer around post and such inside the plant.

So if you will use it more then 40% on hard surfaces then I would consider getting R-4's. IF not get the ags and be happy /forums/images/graemlins/smile.gif

Rowski · Mar 19, 2004

I think I'm going with the 12.4R20 16.9R28 ags. I believe the tires are radials so they should wear and ride better. 12.4R20 is the widest tire I can get (factory) for the front. I rather not go with the 16.9R30 in the rear because I need to have clearance for chains in the winter.

Thnaks for your advice!!

Robert_in_NY · Mar 19, 2004

You won't need chains in the winter on the TN. I have never used chains and have never had a problem clearing snow on frozen gravel, ice and blacktop. The TN is a heavy tractor which gives it better traction on ice then your 2120 (I have a 1920 so I know how sad they are in snow and ice). Either way though, the 28's are fine in the rear and will save you a couple dollars over the 30's.

Rowski · Mar 20, 2004

Andy or Robert

Does your maual show the slowest travel speed (at rated engine speed) for the 28 rears? this would be with the 16x16 power shuttle. The New Holland literature says it has 3 speeds under 1 mph??

Robert

Do you have a hydraulic shuttle as well? If you don't how is the Mechanical Shuttle?

Rowski · Mar 20, 2004

Andy

I know you mentioned it is really nice to have two tractors, 2120 and TN75. I at this point can't afford to have two. If you could not have your 2120 and only your TN. Would you be able to everything that you did with your 2120 inluding using your 2120 implements?? Would size/ weight limit you??

Thanks for your input. /forums/images/graemlins/smile.gif

mahlers · Mar 20, 2004

Hi Derek,
With the 28" rear tires, you'll be going 0.37 mph at maximum power in the lowest gear and lowest range. It's slow enough to run a trencher - and it might even be slow enough to use the backhoe to trench a 100' length without ever getting out of the backhoe seat /forums/images/graemlins/smile.gif

The 16x16 transmission has got any gear that you'd possibly need. I really like it.

I don't have any experience with a 2120, but the TN70S that I just got seems to be versatile enough to do everything that I was doing with a compact (an old Massey 30B) and has enough versatility, power, and maneuverability that the sky's the limit as far as what it will do. I don't see how you could go wrong with one.

AndyMA · Mar 20, 2004

(
Does your maual show the slowest travel speed (at rated engine speed) for the 28 rears? this would be with the 16x16 power shuttle. The New Holland literature says it has 3 speeds under 1 mph??
)
New Holland only specifies max speeds with 16.9x30 rears and then provides a multiplier for othervtire sizes:

TN 65,70,75 with 16x16 trans 16.9x30 R1
Range A 0.4,0.6,0.9,1.2 mph
Range BL 1.6,2.4,3.6,5.3
Range BH 2.0,3.0,4.3,10.4
Range C 5.8,8.6,12.6,18.7

Multiplier for 16.9-28 is .964
Therefore Range A Speeds are .386, .578, .868, 1.57
These speeds are calculated at max engine power which is listed as 2300 rpm.

PTO speed for 540 rpm is listed as 1957 rpm
PTO speed is listed at 634 rpm with an engine speed of 2300 rpm

Therefore doing a little more math the forward speed at 540 PTO rpm is .851 times the above speeds. 0.328, 0.492, 0.739, 1.34 mph

Hopefully this helps. the TN manual has about 20 pages with power curves, speed charts etc. I guess you need to know those exact speeds when you are spraying, seeding etc. /forums/images/graemlins/cool.gif

Andy

AndyMA · Mar 20, 2004

( Andy

I know you mentioned it is really nice to have two tractors, 2120 and TN75. I at this point can't afford to have two. If you could not have your 2120 and only your TN. Would you be able to everything that you did with your 2120 inluding using your 2120 implements?? Would size/ weight limit you??

Thanks for your input. /forums/images/graemlins/smile.gif )

Derek

I definately can't afford 2 machines either and didn't intend to keep the 2120. However when I found out what the dealer was going to give me in trade I decided to and am glad I did. The main reasons I got the TN was for a larger backhoe and the bucket lift capacity. As I think you know I've had both a TN75S and a TN75D due to some issues with the S unrelated to SuperSteer. Even though my TN probably weighs 9000+ lbs, I don't notice much difference in tire compaction from the 2120 due to the larger foot print of the tires. I haven't tried all 2120 implements on the TN but I don't see any reason why I'll have any trouble. As you know the 2120 is quite a tractor and is significiently bigger than a TC45 for instance so it's implements are not tiny. One of the main things I like about 2 tractors is the ability to dig with one and use rear mounted stuff with the other. Quite often I will park the 2120 with it's rock bucket on near the rear of the TN and use the TN backhoe to load rocks into the 2120's bucket. This is one area where the 2120 even with it's capabilities falls short of the TN. I can easily fill th erock bucket to the point where the 2120 can't lift it. If I disconnect from it and grab the same bucket with the TN it lifs it any carries it with no problem. I pick up one end of my 8800# 40' containers with the TN and drag them around. That would be an all day affair with the 2120. All in all, if I had to choose, I would keep the TN and let the 2120 go. I don't think there is anything that I do with the 2120 that the TN can't do. The one exception being operating within my fabrcation shop. I use the 2120 and forks to change lamps, but I suppose a ladder will work /forums/images/graemlins/confused.gif

You'll love the TN cab. I've used the JD and Kubota on similar size machines and the TN cab is second to none. Rember it is a presurized /filtered cab so dust when doing things like mowing is pretty much a think of the past. The AC and heat work great as does the stereo, and the pull down sun shade combined with the tinted glass (and lots of it) gives excellent visibility.

Which TN are you looking at now? If you ever want to come down I could let you play with mine for a while /forums/images/graemlins/cool.gif

Andy

AndyMA · Mar 20, 2004

Oh yea, I forgot one thing. I can't tow my TN with my F350, 10,000 lb trailer. But that's what lamarbur is for /forums/images/graemlins/cool.gif

Thanks Larry

Andy

mahlers · Mar 20, 2004

Towing is a good point - that is an issue that's got me stymied. With the backhoe and loader, this rig is a bit heavy to load on a typical trailer and tow with a typical pick-up. I'm looking at a Ram 3500 w/ Cummins diesel and fifth-wheel to get this thing around eventually. That's an expensive set-up and it's going to have to wait a while, though...