LLoyd, Toro has a basic hydraulic troubleshooters guide online. It won't let me post a direct link so try this:
Select any year dingo from 1999 thru 2006
Select manuals button. The PDF is at the bottom. When selected it will launch their retrival of the PDF.
If that doesn't work email me and I'll send you a copy.
Good Luck
Jim Vrzal Holiday, Fl.
And yes, I do own one. Best damn money I spent yet.
Wayne Cook fired this volley in news: snipped-for-privacy@4ax.com:
Thanks, that's good information.
LLoyd
"Pete C." fired this volley in news: snipped-for-privacy@snet.net:
Just for the record, this system does have an hydraulic fluid filter. I didn't check the nameplate, but believe this tractor was built in 1998. It's got boucoup hours on the Hobbs, but except for the traction drive, still does everything else properly.
LLoyd
Mawdeeb fired this volley in news:1oRAi.90$MN4.39@trnddc03:
Ummm... Toro? This is a John Deere. LT350. Are they the same?
LLoyd
No, but the principles of hydraulics are the same. Just another resource.
Jim
Agreed! My neighbor just got a new John Deere mower. I bought his old one. While looking over the new one we discussed this problem. I know of another JD that has been offered to me for free if I'll come and get it with the same problem.
Mawdeeb fired this volley in news:K2%Ai.44$ih.28 @trnddc01:
It's not my living, but I design hydraulic machinery for our plant. What I'm really looking for is the schematics for the LT350.
Thanks,
LLoyd
OK. That's much better IMHO. You might even be able to get parts for it (though I wouldn't hold my breath now days).
Well, I feel dumb!
The old fellow who gave me the tractor said it was an LT350, and gave me an operator's manual for a 350.
Last night, I deemed it "time" to pull the transaxle, which is a fairly simple but fussy job.
By the time I'd gotten 10 years of oily grass mat stripped off everything, it became apparent that this was a John Deere 455 tractor.
It's not 32HP, it's 22, but it runs a 60" belly mower through knee high grass like it was 50HP.
The tranny is a Tuff Torq unit. I haven't yet uncovered any nomenclature on the transaxle that will show me a model number.
I THINK I noticed some wiggle in the F/R linkage D-shaft connection. One of the original respondents might be right -- this might just be a linkage problem.
But the tranny won't keep a load of oil... every gasket leaks. So it's time to get it out and fix everything in one pass.
Now that I actually know the model, any schematics floating around out there?
LLoyd
Looks like you're in luck. From looking at John Deere's parts catalog they have parts available for that transmission. Try looking here
Wayne Cook fired this volley in news: snipped-for-privacy@4ax.com:
Yep, I have the exploded parts drawings downloaded from that site, but no hydraulic schematic.
This will probably turn out to be a "real" metalworking project. The two "neutral" valves the fellow destroyed to cure a leak cost roughly $490 to replace. Seems like I'll be making some on the lathe, charging my time at minimum-labor rates .
LLoyd
Just be happy knowing you are part of the small community that can actually make stuff and fix chit.
Wes
Unfortunately the best I can do is scan the schematics for my old
140. I'm sure they're similar but definitely not exact.
Yep. It's nice to be able to make stuff. :-)
Hi LLoyd,
Maybe Tuff-Torq's website will help? See:
Leon Fisk fired this volley in news: snipped-for-privacy@4ax.com:
I was on there earlier, and mentally gave up when none of the trannies in the selector wizard were near mine.
But that link was magic. THANKS!
If not identical, the K92 tranny is so close, I cannot see the differences. It must be out of production; it's certainly not in any of the categories offered in the selector.
Well... now I'm a bit more worried about what will need fixin'. There are two pumps and two distinct circuits -- one for all the "other stuff", and one for the traction drive... sigh....
If it's the hydrostatic pump or motor, it'll be expensive. If it's just a check valve or restricter oriface, or a leaking seal between circuit elements (lots of big, flat gaskets with high and low pressure galleries adjacent to one-another in that bugger) I can fix it myself.
LLoyd
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