Working that backhoe HARD.

[Cherokee140]

Question....a few weeks ago I spend the day digging up trees. On the few times I took a rest that backhoe cylinder was pretty darn hot.....hot to where it would not burn me, but I did not want to leave my un gloved hand there for a long time.

Is this causing damage....I think that the heat would break down the fluid quicker perhaps, but that would be about it. But I don't know for sure. Some of these roots are bigger then the trunks of the trees (black locst trees) Really I can't wait for video....roots bigger then my calf not uncommon. My helper, 6'2" 300lbs with the ax.....(it is good to be the little broken guy sometimes) will take a good 5 minutes of chopping to cut through some of these roots....it is insane....they are runners to other trees.

But anyway.....is getting the system THAT hot going to damage anything, level is ok, and I still have all the blades on my fan.

This weekend we are doing the same again.....I will say the machine is great it only used 1 line of fuel IIRC in about 6hrs of that hard work....2700rpm and digging that hard stuff out.


Thanks.

 

[RedNeckRacin]

Is the hoe an aftermarket one or one recommended by the manufacturer?


Just make sure to keep an eye on your temp gauges if you have multiple ones and keep your radiator and oil cooler blown out. Hydraulics get hot because of all the friction and moving in the system. Don't worry about it. Follow your maintenance schedules and you will be fine.

 

[jeff9366]

BX25D is a Kubota T-L-B package.

 

[jaotguy]

sounds like your unit is at 120F ( almost too hot to touch ) ... but well under the ratings for seals etc ...

should be fine .

 

[Cherokee140]

Sorry I should have said that...yes it is a 25D stock backhoe.

 

[RedNeckRacin]

Ok, some guys on here get pretty adventurous with their ideas is why I asked first. I know my JD 450 crawler has the hydraulic tank right beside the operators seat and it sure makes you sweat when your running in the summer time. The one cylinder on the curl starts to leak when I really get the hydraulic fluid hot so thats about the time I bail off for a drink!

 

[Grandad4]

Question....a few weeks ago I spend the day digging up trees. On the few times I took a rest that backhoe cylinder was pretty darn hot.....hot to where it would not burn me, but I did not want to leave my un gloved hand there for a long time.

Is this causing damage....I think that the heat would break down the fluid quicker perhaps, but that would be about it.

As you know the BX25 uses a common hydraulic system that runs the power steering, HST, 3 point, loader and backhoe. It gets hot, just as you describe, when it is working for a period of time. If it's just too hot to hold your hand against a line or a fitting, that's about right. Unless its smoking or starts acting funny when you use it, you're probably OK. Something has to be wrong with the machine or the operator for the hydraulic fluid to actually overheat.

 

[gwdixon]

My L48 gets very hot also when digging out stumps. The several hydraulic pumps really get worked when repeatedly grabbing a root and having the pump go into relief. So much so that the boom will start to shudder like the pump is cavitating.

Anyway, I changed out the hydraulic fluid with the high dollar 10w-30 weight hydraulic oil from Amsoil. The L48 take 15 gallons! The machine seems to run smoother and the shudder is significantly less when worked hard.

 

[wmonroe]

My BH92 is the same. When working it hard it is uncomfortable to keep a bare hand on the boom cylinder in front of the operators seat. I always assumed this was normal figuring the fluid is probably in the 120+ degree range.

 

[boggen]

double check all your radiators / hyd coolers....

radiator normally very front of tractor, hyd oil cooler many times direclty behind the radiator. (may have to take off side shields, or unbolt radiator top to swing it down out of the way or something) and then possibly a transmission / rear end hyd oil cooler that may be mounted some place between engine and rear end.

check to make sure your radiator / hyd cooler is not all gummed up with leaves / dust / etc... it can be easy to miss some these, due to they are kinda hidden away.

 

[bellweather]

My hydraulic lines get pretty warm during periods of hard use. BTW, I found that the best way to cut roots is with a cordless sawzall and a pruning blade.

 

[Fallon]

double check all your radiators / hyd coolers....

radiator normally very front of tractor, hyd oil cooler many times direclty behind the radiator. (may have to take off side shields, or unbolt radiator top to swing it down out of the way or something) and then possibly a transmission / rear end hyd oil cooler that may be mounted some place between engine and rear end.

check to make sure your radiator / hyd cooler is not all gummed up with leaves / dust / etc... it can be easy to miss some these, due to they are kinda hidden away.

Good advice, even if the temps you are seeing are within operating tolerances.

 

[Cherokee140]

Sounds like it is par for the course.....I was thinking it was, but I wanted to make sure. When hitting those roots it does go into relief quite a bit. But I figured as long as that fan is intact and moving air it is going to be doing its job to keep the air moving.

Thanks Just wanted to make sure....I think I have really worked this machine hard in the time I have had it....some on here seem to think I would wear it out quick....not sure about that but if this was actually hurting it I would have figured a way for another cooler in line somewhere, sounds like I don't need it as the folks at Kubota built a machine to work.