Go BottomTC33DA FWD Working
 | tom21769
Join Date: Jun 2005 Posts: 10 Middletown, MD 
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2006-05-21 129658
I bought a new TC33DA with SuperSteer & industrial tires about a year ago.
I expected to be able to make tight turns without slipping.
However, I generally cannot turn tight even on dry grass without the front wheels slipping forward. This happens even with FWD engaged.
How do I test if the FWD is engaging at all?
The FWD control lever, unlike any of the other levers, has almost no resistance when I push it forward. Is this normal?
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 | kwschumm
Join Date: Feb 2003 Posts: 5764 NW Oregon 
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2006-05-21 129659
Put it in 4wd and drive it in a circle. In 4wd you can see the front wheels slipping out of sync with the ground. In 2wd they should basically turn as fast as they are traveling. Sort of hard to describe but I can sure see the difference on my JD. BTW, turning in 4wd is hard on the drivetrain. It's best to use it in slippery conditions only because there has to be some slippage. The drivetrain designs aren't very sophisticated. ....
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 | earthwrks
Join Date: Dec 2003 Posts: 3853 Home Office in Flat Rock, Michigan
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2006-05-24 129791
"They're not sophisticated"---- errrRR? They sure are on the NH Boomers with SuperSteer. Technically, the machine is in 4x all the time--it doesn't a have a "2wd mode". What is transparent to the operator is the front axle cycling in and out of 4x on its own. Pretty sure it's called SensiTrac. In SensiTrac mode it only "engages" when one front wheel senses any slip, then a clutch under the engine engages (which is in the black rubber boot) the rest of the front drive shaft to propell the front axle. Unless the lever is broken it feels soft because the fairly large spring hanging down under the engine connected to the clutch takes up the slack. I've noticed on mine (TC33D) that under load pulling a box grader both wheels are under power and sometimes tend to not go exactly where they're pointed, but I just let off the pedal and it steers perfectly. This is likely due to the rear wheels wanting to spin at the same time or equalizing under load which tend to make it go straight ahead. I really didn't notice this until I lost my front suitcase weights. If you're concerned 4x doesn't work, jack it up in the front middle. Rotate one tire about 1/2 to 1 rotation, and it should engage and stop the wheel. Put the lever in "4x lock" and you won't be able to rotate the wheel any after the clutch engages. And while it's jacked up don't start the engine and try to drive the wheels---front or rear.
Also, if it's 4xd lock and you make a turn on concrete, you'll see a lot of tire rubber scuffing on the surface as the tires fight against the turn. Put it SensiTrac, and try it again. There should little, if any rubber, on the surface. ....
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| kwschumm
Join Date: Feb 2003 Posts: 5764 NW Oregon
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2006-05-24 129793
I don't know about SuperSteer but most CUTs are downright primitive compared to a modern AWD vehicle. No offense intended :) ....
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| earthwrks
Join Date: Dec 2003 Posts: 3853 Home Office in Flat Rock, Michigan
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2006-05-24 129798
No offense taken, bud. And sophisticated is a relative term; the system is sophisticated in that the operator needs no other input to allow the machine to detect slippage---just set it and go. ....
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| earthwrks
Join Date: Dec 2003 Posts: 3853 Home Office in Flat Rock, Michigan
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2006-05-24 129800
The term SuperSteer refers to the steering system; the front axle isn't fixed but rather rotates horizontally allowing tighter turns (the axle is like the old push go- carts we made as kids using a 2x4 for an axle with it pivoting in the middle) The axle still uses knuckles to turn the wheels so you have an axle with pivoting knuckles too. The first time you see it work it looks like the axle is coming apart from the tractor. ....
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 | Murf
Join Date: Dec 1999 Posts: 7249 Toronto Area, Ontario, Canada
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2006-05-25 129810
From the one sentence description offered, I would be checking to see that the rear diff. lock is not stuck in the engaged position.
I've seen that happen before, if the diff. stays locked and the machine is light in the front end it plow straight forward instead of turning a tight corner.
Best of luck. ....
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 | kthompson
Join Date: Oct 2005 Posts: 5275 South Carolina
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2006-05-25 129813
If I might add to what Murf said, it also is affected by what kind of load you are pulling. Some loads are harder to turn than others.
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| kwschumm
Join Date: Feb 2003 Posts: 5764 NW Oregon
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2006-05-25 129818
Earthwrks, I test drove a TC33D with Supersteer when I was tractor shopping. I thought it was a pretty neat feature that would have helped maneuver through our trees pretty effectively. Unfortunately, at the time, the loader capacity of the TC33 with 7308 loader was a lot lower than the competition. Supposedly this was due to a weaker front axle which was beefed up in later models. ....
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| earthwrks
Join Date: Dec 2003 Posts: 3853 Home Office in Flat Rock, Michigan
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2006-05-25 129821
Murf I just got in from scaping a private gravel road. At the approach I found me doing what I described earlier, so I let off the pedal, turned the wheel all the way to the stop and the front end steered flawlessly and actually spun me around on a dime, under power with a full 6' box scraper. No, the diff lock wasn't on.
KW: I have't head anything about the axle problems on my 2002 model---the mechanic did say back then they did have problems with the axle bolts streching, but that was solved before I bought mine. I put my machine through it's paces---I don't baby it (though I should---my bad, I know) ....
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| kwschumm
Join Date: Feb 2003 Posts: 5764 NW Oregon
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2006-05-25 129824
I didn't mean to imply there were axle problems of any kind on the TC33. The only thing I heard was that NH derated the loader capacity due to the limitations. I don't think there are any reliability problems with it. ....
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| earthwrks
Join Date: Dec 2003 Posts: 3853 Home Office in Flat Rock, Michigan
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2006-05-26 129865
kw: They did have a problem with the early axle bolts like I said, but I thoink derating is more likley realeted to the potentail of someone overturning the CUT trying to lift too much. I have a mid-size backhoe that can lift a lot and there's been many a time I've nearly laid it on its side. Oh yeah, and I stocked up on backhoe seat cushion foam due to chunking it out with me butt cheeks. LOL ....
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