Lifespan of kubota tractor

[goeduck]

Uh oh! My B21 and B2710 are 20 years old.

I'm sure you are right about the electronics. Besides, the prices of the electronic modules may be prohibitive if you can even find them!

And my Massey 245 is 42 years old, but it was made before electronics were invented.

 

[Recoveryhill]

Kubota engines are in common usage on container refrigeration packages and go 14,000 hours before replacement. Keep in mind that they run almost constantly at a set rpm and receive all scheduled maintenance, on time.

 

[art]

Interesting point diesel85. I believe the hour meters on equipment usually record the hours at rated rpm, so low rpm operation will result in less hours than actual operating hours. Hour meters are intended to record level of use on internal wear components like pistons on cylinders, shafts on bearings, etc. Other components on a vehicle may get a different use history.

That changed in the 90's! They are hour per hour today at an idle or full throttle! We watched the tractor's hours increase by about 1/4 with this change on farm tractors.

 

[art]

Wow, that model was made until 1990 according to tractordata.com. And that is Kubota, not some lower volume brand. The ring and pinion has nothing to do with the engine which may have had many other uses (generators, boats, etc.) to have a higher in-service volume. The ring and pinion would have been specific to Kubota tractors and that model making its in-service volume way lower.

Lots of talk about the engines in here but it could be a housing or something else that is the issue. Lesson being to do your maintenance and do not abuse or push the tractor to its limits. Easy does it.

You are correct about the maintenance and preserving the mechanical end of the machinery. With the different brands we sell and work on we have seen many parts that become unavailable after time. Typically if the part is a good mover they will not go away!! The brand is irrelevant but the movement is everything! I don't know exactly what the criteria is but if the part doesn't sell and sits in their storage they will not order or make more. I don't care what brand it is the parts get discontinued. We have seen them start production or sometimes it goes out to small fab shops to build a limited amount per year to fill the demand. The same holds true with most industries. As ironic as it it may be if the 2850 was a gst the front ring and pinion is available. We have never changed one for other then oil starvation so keep the oil levels where they should be!!!!!!!

 

[PHILIP8N]

Gas engine tractors operate at higher rpms and higher temperatures than diesel engine tractors.

My Ford 8N high a lower high idle speed than both of my Kubotas. I also believe the 8N only has a 180F thermostat, so that would mean the 8N runs at a lower coolant temp too Philip

 

[MHarryE]

I take pictures of all serial numbers on components when I buy a piece of equipment, and a tractor has a lot of serial numbers. Today I came across the S/N plate of my M7-171 and Googled it. First hit was from CARB, the California Air Resources Board where Kubota certified the emissions. The form lists the certification requirement and how their certified engine compared - significantly better than the requirement in all categories. They also have an item to be filled in - expected useful life (hours). Kubota filled in 8,000. I have not yet found the picture file for my L6060 engine to see how the small engine compares.

 

[MHarryE]

Follow up on my last post. L6060 life expectancy is 7 years 5,000 hours; GR2120 5 years 3,000 hours; M7.171 10 years 8,000 hours

 

[Industrial Toys]

That is very interesting. Wonder what a BX is? Never knew there was such a rating.

 

[KennyG]

That changed in the 90's! They are hour per hour today at an idle or full throttle! We watched the tractor's hours increase by about 1/4 with this change on farm tractors.

But not for my 2010 John Deere which has a mechanical tach and records hours at rated rpm.

 

[MHarryE]

BX is same as my GR2120. Actually all tractor engines fall into one of the 3 life classifications and it’s not related completely to power or displacement. I downloaded all of the certified engines as an excel spreadsheet. I did not know which engine is used by different manufacturers. For example Mahindra is not on the list but aren’t their tractors sold in the USA built in Korea using a Korean engine like Doosan who is on the list? Also the lifetime in hours is certified hours so I expect those numbers to be minimum. Also hour meters reading hours at xxxx rpm went out ages ago but electronic hour meters are cheap and unreliable. At Cat we sell hour meters with an adhesive tag on which to write the hours at meter replacement and stick that to the console by the meter. When I retired the hour meter was on the top of my hit list for failures hurting our reliability numbers. A failure is a failure whether $2 hour meter or broken crank (only saw one of those). Our line assemblers received incentive pay partially based on reliability so they, rightly, were on my *** to get other corporate groups to work on their faulty designs so they would get more quality incentive pay.