Mowing is one of the easiest ways to put a less than full load on a new tractor powertrain. Run it at 80-90% of rated PTO RPM for a few hours and don't load it down so much that the governor is going to full fuel trying to maintain set RPM (lift the deck a bit or reduce forward speed if in...
There should be plenty of documentation with your dealership (and hopefully you have copies also) that this issue was raised and insufficiently addressed while it was still well within the warranty period. Have you tried contacting Kubota corporate directly because your dealership doesn't seem...
If the alternator was a 3.6 in a Cadillac CTS, I am not too surprised. GM uses a fuel and battery saving alternator control algorithm in all of their gas powered vehicles but the particular version of this system used in the CTS causes some really weird issues when the alternator is developing...
There are some engine designs that were terrible in terms of buildup but hopefully none of the manufacturers are making those same bad design decisions now.
There are a lot of people wanting to sell products and services addressing a non-problem. Maybe a lot of them have gone to Facebook...
Techron or equivalent (found blended in "top tier" fuel) is an excellent fuel system cleaner but does nothing to address carbon buildup on the back of intake valves which is where people go nuts over carbon in GDI engines. Because a GDI engine injection is direct into the combustion chamber, no...
The problem of carbon deposits is GREATLY overblown with properly designed GDI engines. I bought my first GDI equipped gas vehicle many years ago (2008 Cadillac CTS with 3.6L) and have owned many since and currently have three GDI gas powered vehicles.
There is a HUGE difference between...
It would take a complex set of inputs to accurately model airflow under different air resistance and RPM conditions. Blade geometry is critical and can be optimized for many parameters such as quiet, low power draw, high low static airflow, low performance drop under high static, etc. but not...
Jay,
For the CFM number to be comparable, they would have to be specified under the same conditions. If Kubota engineering was willing to share the rated CFM of the stock mechanical fan it would be the actual airflow within that cooling system at a specified (generally rated) RPM. The...
At 180 watts (or 108 since both numbers appeared in the thread), that electric fan motor is capable of developing a small fraction of a horsepower and is probably just too small for the job compared to the mechanical fan. If the electric motor were 100% efficient, and it is NOT, then it could...
I ordered my F2690 mower back in June and it was finally delivered 10 days before Christmas. The price was locked but 0% dropped from 36 to 24 months; not a big deal because I was going to write a check had there been a substantial cash discount but since none was available I took the 24 month...
For some operations, you need a lot of torque at the driving wheels and it is easier on the HST to do a large share of that torque multiplication via a lower gear range rather than relying just upon the HST to do the majority of the work.
Rodger
Merchants receive a discounted amount from the credit amount charged and the percentage is higher for small merchants with some card "brands" being worse than others for merchants. One of the methods Sears used when introducing the Discover card was not charging the discount rate to merchants...
Excellent point Bruce and this is why the 3.3L Mitsubishi turbo diesel that powers my standby generator has thermostatically controlled oil pan and coolant heaters. Being the "belt and suspenders" type when it comes to stuff like this, its heavy duty starting battery stays on a maintainer AND I...
My Kubota F2690, Deere 955, and Corvette Z06 all have battery maintainers on them during the winter. A fully charged battery will lose a lot of power in very cold weather but it won't freeze at temperatures found in any inhabited area of the world.
Rodger
As Dave noted, the smaller displacement tractor engines are designed/rated at fairly high RPM and some are used with a 3,600 RPM governed speed in generator service. Increased noise and decreased operating efficiency are tradeoffs running at this speed but it allows a smaller displacement and...
In an open environment where a desiccant is needed, that sort of device will be quickly saturated when it is most needed so it becomes a maintenance item or it quickly becomes useless. And it doesn't replace normal fluid changes.
I restore a lot of vintage radio gear and desiccant is used in...
It is interesting because a lot of standby generators have block mount coolant heaters. My Mitsubishi powered 40 KW standby has a block heater and I added an oil pan heater also. Both are thermostatically controlled and I added a relay that kills power to them when the generator is running but...
Matt,
I should have explained better where the 955 will have the advantage. There is a fairly long area of a roadside ditch with an unusual slope that is best cut with the tractor straddling the ditch and the wheel spacing gives the Deere with midmount deck an advantage here. And now that I...