Operating Speeds

[ALLEN007]

I have a new BX 2380 and this is all new to me. I was reading the manual (yes I admit it) and it said not to run full speed for 50 hours (break-in time). It will probably be a year before I put 50 hours on it. Anyway, what rpm's should I be running while doing basic dirt moving with the loader and leveling with the box? It also said to let warm-up for 5 minutes on the initial start-up. Is that a must? Thanks for the help!

 

[rjcorazza]

As far as the rpm limits during break in, some do - some don’t. I kept my (2) previous kubotas below pto rpm for the first 50h for the most part.
As far as warmup, I firmly believe this is a good idea for the life of the machine. The manual should have a temperature vs warmup time chart.


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[SidecarFlip]

I didn't but then both my units are for ag use with driven implements so right from the get go, I was running at rated (PTO) rpm which is the stated high rpm for the engine. No ill effects here after 10 years or so of farming. I did stick religiously to the 50 hour fluid change however.

I always 'warm' my engines up prior to loading them and in my case because both are turbocharged, I cool them down for a few minutes before shutting them down. Reason being s that the lube oil that lubricates the hot side of the turbo, when there is no flow (engine shut down) can cook in the bearing housing and cause bearing failure and the Turbocharger is an expensive part to replace.

Beside, in the winter when it's cold, I don't like getting into a cold cab. I like it warm...

 

[85Hokie]

I have a new BX 2380 and this is all new to me. I was reading the manual (yes I admit it) and it said not to run full speed for 50 hours (break-in time). It will probably be a year before I put 50 hours on it. Anyway, what rpm's should I be running while doing basic dirt moving with the loader and leveling with the box? It also said to let warm-up for 5 minutes on the initial start-up. Is that a must? Thanks for the help!

Your Bx has a WOT of about 3400 rpms....thats screaming - and somewhat not needed but 2% of the time.

However you will find things "work" better at 3000 ish ....once she is broken in.

Warm up is dependent on outside temps - so if cold, let it warm up a bit, if warm outside you can allow less time.

to answer your question, there is plenty of power once you get above say.....2400 RPMs, and it will not hurt anything to get close to 3000 if you need that extra push.

Many want to baby the engine, bad advice on a diesel - some will say run it like you stole it, really this the design of the engine. Diesels are meant to run a "X" rpm - and most of the time it is somewhere between 2500 and 3000 depending on the engine and design.

You will find a happy sweet spot, give it a little time. And working slower at first is always a good thing.......bad things happen when we get in a hurry!

 

[Tractor Dell]

I normally run mine between 2000 and 2500 RPM. It's slow enough where the hydraulics are at a speed I am comfortable with, but fast enough where there is good power. There are times when I really open her up when trying to pull or lift something that is making it work. I don't want to lug the engine as that isn't good for them either.

As 85Hokie said, you will get a feel for what you are comfortable with. I wouldn't worry about it too much. These engines are well made and seem to last a long time, as long as the maintenance is done on them.

 

[ALLEN007]

Thanks all for your input. I appreciate it.

 

[Freeheeler]

It's not so much a certain rpm you should run, it's more a matter of not running a single rpm constantly. I vary the rpm a lot for the first 10 hrs, avoiding wide open throttle for extended periods for the first 50 hours. Just don't lug the engine, or WOT for hours at a time and you'll be fine.