L48 TLB: Back Hoe  -- Tractor Attachments Implements 3ph Discussion Forum and Review L48 TLB: Back Hoe -- Tractor Attachments Implements 3ph Discussion Forum

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 09-28-2003, 18:21 Post: 65033
MartinD



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 L48 TLB

I would love to talk to anyone that owns a L48 TLB. I have some hydraulic problems and would like to know if anyone else has similar problems. Loader leaks down. Backhoe leaks down. Even stabilizers move sometimes. Rep says within acceptable range. I say, for what I paid nothing should move until I make it move.Rep says 2 inches in 5 minutes is acceptacle. I think this is rediculous.






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 09-29-2003, 06:41 Post: 65050
Art White



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Hard to find hydraulics that don't drop some. Need to know more, does it stop after the five minutes? I've never worked or considered only five minutes as a rating. What does it do in an hour, what are the conditions, bucket full or empty? They do have an acceptable(to manufacturer) amount that gives a guideline for repairs to be made by.






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 09-29-2003, 06:58 Post: 65051
TomG

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 L48 TLB

My 15-year-old hydraulics don't leak down that much but newer stuff tends to. There may be an engineering tradeoff in the designs for all I know. Slightly leaky systems may last longer and if so I'd want the leaky one. Or maybe ones that leak very little cost more than manufacturers figure customers want to pay. Except for hoe stabilizers, leak down doesn't bother me much since the equipment never is still for very long when I'm using it. I don't think I'd want to pay a bunch to cure a problem that doesn't bother me much.






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 09-29-2003, 11:20 Post: 65069
Murf

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 L48 TLB

I think if any of my equipment dropped that fast they'd cancel my Workers Compensation insurance until I got it fixed.

Best of luck.






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 09-29-2003, 16:01 Post: 65087
Art White



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I think he is over the allowable for what he's saying but in order to tell him how to deal with the company I need to know more. This isn't a hard process unless we want to make it that way!






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 09-29-2003, 18:23 Post: 65096
MartinD



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The kubota rep is saying that is what is acceptable to Kubota (2 inches in 5 minutes). He showed me a paper that says this. My Kubota does not leak that much, but it does leak down probably 15 inches in an hour. I'm talking on the front end loader now. Doesn't matter whether bucket is empty or full. The rep is saying that it is probably in the self leveling valve. They have replaced this valve and several other valves which have done no good. Rep says that they are only having problems with the L48 since it is the only TLB that has the self leveling valve. B21 and L35 have manual leveling . He says manufacturer of valves don't have tight enough tolerances and that Kubota is satisfied. He is willing to put electric lockoff valves on front end loader and backhoe if I want. I just think that this is not the proper fix. This is why I would like to know if any other L48 owners are having the same problem.






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 09-30-2003, 06:34 Post: 65118
lamarbur



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I have a Bradco model 11 ft hoe hanging on my Mahindra 4110 tractor. The hoe bucket when fully curled will weep down to level in a week or so. The JD 710 hoe that I run part time, locks down every time machine is shut off. I like this feature is great. We use this to our advantage in certain circumstances (ie) lifting pallet of shingles to a roof, lock it down, and climb up/unload bucket. If I owned an L 48, I would be thrilled with the lockdown feature. I also agree with you that full drop in 15 minutes or so, is not normal. It does sound as Kubota's rep, whoever it is, is at least trying to offer you alternative options.






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 09-30-2003, 07:14 Post: 65121
Art White



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I guess we would have just fixed it and sent Kubota a bill, we don't always get everything right but just keep trying. Now, lets back up, has anyone checked to see if it's the cylinders or the valve that's leaking?






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 09-30-2003, 20:44 Post: 65188
MartinD



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They have checked the cylinders and say they are OK. They have put on three valves and all leak down. The valve is what the rep is saying does not have tight enough tolerance. The manufacturer of valves have a certain guideline they go by and Kubota is satisfied with this. This is what bothers me the most. If something is not good enough to to do the job, then Kubota should want a tighter tolerance. I guess not enough people has complained about this machine. Maybe not thta many people own the L48. Most own either the L35 or B21. Rep says no problems with these
He also adds that these machines do not have the self leveling valve. So he thinks the problem is with the self leveling valve and the main valve but doesn't know for sure.
It has him shaking his head and all of the mechanics who have looked at it. This is why he is offering me the electric lockoffs if this will satisfy me. I just don,t know whether to put on the lockoffs or ask Kubota to buy the machine back. Other than these problems, I really like the L48. But to me, when you buy something new and pay that much money for it you expect to get something that is not leaking down. Maybe I expect too much.






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 10-02-2003, 15:17 Post: 65320
Art White



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For a different application we have removed the self leveling for an individual but I don't think that is the culprit as it would more than likely be dumping the bucket while dropping. All pieces have a tolerence and it is bad when you get two at the end of the extremes together as this is one of those times obviously. The electric lockouts would only work if the power was off not sitting idling while waiting.






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