newtome B7100

[Xizervexius]

Howdy folks, I just picked a used B7100 4WD of unknown vintage (late 80's/early 90's?) and of course as soon as I get it home problems start showing up.
After pushing around a bit of dirt while playing with it this morning, it seems to have lost power. The engine runs spectacularly well, I suspect the clutch is gone (this is a geared, non HST unit). It now seems to barely move on flat ground, in 1st gear hi or low range.
The left front wheel has a significant wobble; didn't notice it in my brief test run when purchasing. Probably a shot or loose bearing or damaged birfield?
The bucket should have enough "oomph" to lift the machine off the ground correct? If I put it down and tilt the bucket I can lift it, but not by just pushing the bucket down with the left actuator.
It has a 3 point hitch (came with a scraping blade attachment), but when I try to lower the hitch, it just sort of "Screams"?

 

[Roadworthy]

Before leaping into a clutch replacement ( major job) check the clutch pedal adjustment. If set incorrectly this can caus slipping. The three point raises under hydraulic pressure but lowering is strictly by gravity as pressure bleeds off. The speed of the lowering is controlled by a valve, usually below the operator on the tractor and between his legs. I can't address the wheel wobble. The front loader should be able to lift the tractor but may not have enough downward travel to do so. You may have to roll the bucket away from you before lowering it to achieve the necessary height.

TractorData.com Kubota B7100 tractor information

www.tractordata.com

 

[Xizervexius]

TractorData.com Kubota B7100 tractor information

www.tractordata.com

Thanks. Clutch adjustment is first on the list. Just seemed so weird how it was seemingly working fine and then rather suddenly, nothing.
That info sheet is handy. Based on my s/n it appears mine was made in 1980 and Asian market.

 

[Xizervexius]

The clutch was adjusted as short as it would go. I reset it and lengthened so the clevis was about half way , worked okay for about 5 minutes and then she was done; had to rev the crap out it of and nudge it along with the bucket to move on flat ground.

 

[TheOldHokie]

Thanks. Clutch adjustment is first on the list. Just seemed so weird how it was seemingly working fine and then rather suddenly, nothing.
That info sheet is handy. Based on my s/n it appears mine was made in 1980 and Asian market.

Clutch is not a massive job but depending on the model the loader subframe may complicate the split. I have done it multiple times on a B7200 with B1630 loader and trying to motivate myself to do it again for a transmission repair. Inside on a concrete floor is way nicer than outside on the dirt. I have done both and if I had to do it outside again I would pay someone to do it for me

Dan

 

[D2Cat]

Look to see what is involved in getting the loader sub-mounting hardware out of the way. That, in my opinion, is more work then replacing the clutch. Separating a tractor is usually a bigger obstacle in someone's mind than it is in actual life!

You systematically remove or separate all components from the engine to the transmission and pull the front half of the tractor forward. (There are some simple details you can learn as you go to be save) Clean and analyze what's not working, then replace everything in there: Clutch disc, pressure plate, throw out bearing, and the bushing in the crankshaft, and reassemble.

Each task is dependent upon the person's skill level and motivation level, and financial level. If you're past the point of enjoying working on things you have to find someone else, if not tackle the job. You'll learn about your tractor and appreciate it much more. You'll also know how it was done and understand various aspect of how to use the tractor without adding unnecessary wear to the new parts.

 

[Russell King]

The front axle won’t support the engine from falling to the side so it must be blocked in place before getting too far along in the split. I believe most people use wooden blocks for that job.