13 Years in: B7800

   / 13 Years in: B7800 #21  
I agree Six. I had a B2910. Fancy version of the 7800. Great little tractors!!!

In layman terms. If your 3pt lever has a long operating slot with a number scale, and the lever stays wherever you place it, you have position control.

For some reason I'm thinking the 7800 uses 1/4" valving. Thinking that was one of the differences from the 2910.
 
   / 13 Years in: B7800 #22  
I agree Six. I had a B2910. Fancy version of the 7800. Great little tractors!!!

In layman terms. If your 3pt lever has a long operating slot with a number scale, and the lever stays wherever you place it, you have position control.

For some reason I'm thinking the 7800 uses 1/4" valving. Thinking that was one of the differences from the 2910.

I have position control, I know that. Anything else I don't think I looked hard enough. 1/4" thing is black magic to me.
 
   / 13 Years in: B7800 #23  
I have position control, I know that. Anything else I don't think I looked hard enough. 1/4" thing is black magic to me.

Awesome. 1/4" is definitely black magic. My JD has it. I've used it enough to be somewhat proficient. But it don't compare to position control.
 
   / 13 Years in: B7800 #24  
Awesome. 1/4" is definitely black magic. My JD has it. I've used it enough to be somewhat proficient. But it don't compare to position control.

I don't get why it's needed. Isn't position control all you need to go up and down? It's not like it's 400HP.
 
   / 13 Years in: B7800 #25  
I don't get why it's needed. Isn't position control all you need to go up and down? It's not like it's 400HP.

Position control is more expensive to build. Thru a complex linkage and valving system it always know the "position" of the 3pt. 1/4" is a simple three position valve that never knows where the 3pt is and doesn't care. 1/4" valving became common when manufacturers started building small tractors/SCUTs. It lowered the build cost which in turn raised the profit (pun intended). :)
 
   / 13 Years in: B7800
  • Thread Starter
#26  
Most important tging about position control is the arms will return to the exact same height every time you move the lever to position number 6. Much, much better system when using ground engagement 3pt attachments.

I'm really surprised by the low hours most of you guys put on your tractors.

For the owners that swear you need to regularly start your,tractor are gonna say you guys need to start them whether you have any work or not!!!! :)

I am embarrassed if you must know. These are decent numbers for "hobby" farmers most likely, not the hero farmers of old. I bought my 'bota fairly certain it would be the last compact tractor I'd own. Lookin that way ...
 
   / 13 Years in: B7800 #27  
Just kind of stumbled across this thread...

I got my B7800 (HST) back in 2010. It had 748 hrs on it. I believe it's a 2006. It had been heavily used: came with a new bucket; I think the hood was also replaced (I promply managed to dent the heck out of it!). It's been to war with me since. Now has about 1,800hrs, so I've put well over 1,000 hrs on it. It'll be that last piece of equipment I part with. Although I've broken some things on it I've been able to repair/fix. It's dented up and looks the part of something that's got 1,800hrs and has been at war, but it just keeps going, always ready to do the work I ask it to do. It's nearly indestructible. I've tried! I've done stuff with it that would freak out most people: four-wheeling on and over top of a bunch of brush (not really knowing what's underneath), using it pry out stumps (with bucket levered under a part of the stump and literally bouncing the rear of the tractor, which would be off the ground, to pop out stumps- and no, that's not how I blew out a loader cylinder). I wouldn't dare try to be as harsh with my Kioti NX5510. I now use my Kioti more (got it new and now have 550 hrs on it): it does the heavy lifting and now most of the mowing. The B7800 was really built for the rental market, expecting to see extreme abuse. Recently did major maintenance on it (including adjusting valves; repaired leaky joy stick control block/valve- very happy to finally deal with that leak!). Don't think that there's any tractor today that's as bullet proof as the B7800.

1/4 inching valve just flat out sucks. As someone who is more than versed in operating one of these it's second nature to me; but, when I go to turn this thing over to my wife to use for mowing around the homestead area I'll learn anew how much it sucks: with positioning I can tell her to just move the lever to number X and be done with it (rather than: "look behind you, move the lever until you see the desired height," whatever that may be- almost always a trial and error thing.

Best addition: bucket tooth bar (Landpride- from dealer); managed to bend it (had to use a sledge hammer to straighten it out) but not the bucket!
2nd best addition: ballasting the rear wheels
3rd best addition: a real alternator (Kubota kit), which I needed in order to add lights

Still looking/wanting to replace the lower link turnbuckles with adjustable links.

Items broken/replaced (in over 1,000 hrs of my use):
- Tie rod
- Bucket curl cylinder
- Seat (broke while doing a lot of mowing and I finished mowing without a seat- ouch!)
- Battery (I think only one)
- Leaking loader joystick control valve
- Loader hydraulic hose (I've got a couple more that should be replaced)
- Lower front grill piece (cheap plastic)
- Engine compartment side panels (the clips wear out- I came up with a solution that has worked, but couldn't explain it here, and I don't have pictures)

Why you keep your smaller tractor (to rescue your bigger one! my Kioti was pinned in with my dump trailer which was starting to slide off into the abyss- had to dump the contents of the dump trailer, spread it around with the B7800 and then get the trailer back up onto the path/road via come-a-long and B7800):
B7800.jpg

The B7800 owed the rescue as the Kioti had once had to pull it out of being stuck:D

Oh! My avatar is of my B7800 with a load of wood in the bucket and towing a car/truck hood (I went through several to skid with) with a bunch of wood. Recently sold that box blade; did a TON of work with it: pushing debris forward with the bucket and then backing up and pushing another debris pile with the box blade!
 
   / 13 Years in: B7800 #28  
Though not a 7800, I bought my B1750HSDT, Bi-Speed Turn new in May of 1993. Nearly 26 years and absolutely NO trouble of ANY kind.

Best thing I've ever purchased.

SDT


This whole class of tractors just seem to be workhorses. My B7800 only mows grass and such but this thread is getting me closer to buying a loader and using it for the retirement years. It's handles easy, fits in corners nothing else will, gets the power to the ground and nothing ever seems to go wrong with them. Even my battery was great and I think lasted well over 10 0r 12 years.
 
   / 13 Years in: B7800 #29  
My B7800 is now 16 years old and it too has been bulletproof. The only repair in 16 years other than normal wear and tear was a leaking rear axle seal. This thing punches so much above its weight class that it is unbelievable. I have lifted over 1000# of brick on a pallet with bolt on forks. I have a Blecavator tiller that weighs over 1000# that it handles with ease. It will be with me until they pry it from my cold dead hands.
 
   / 13 Years in: B7800 #30  
I've never heard anyone complain about the older "B" series. Many times I walked away from my B2910, looking over my shoulder at it, and thinking "how did that little tractor do that".
 

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