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I don't see a problem with engaging the diff lock with a wheel already spinning, especially in a low gear. The diff lock doesn't engage instantly anyway, at least one wheel revolution is required to get the pin to engage in the differential. I've engaged my diff lock for years in this manner...I...

HST should not "pop out of gear" since there are no gears. It's not a CVT, either. It uses a variable hydraulic nozzle, that's all. HST has less "engine braking" effect than a gear-drive tractor, although it does have some. The higher the range selected, the less braking effect available. As...

Oil cooler might help but still won't solve a plugged up radiator.

My brand new 2018 MX4800 with 8 hours on it was overheating, *in NH*, a few weeks ago while flail mowing at wide open throttle. The culprit was a plugged radiator of course. Grass, chaff, dust get through the mesh radiator screen and then plug up the radiator fins. It's important to wait for...

Generally speaking, using 4x4 only as needed is best. On high-traction surfaces, like pavement, or rock, or concrete...the part-time 4x4 system of these tractors will bind upon turning and it puts a large amount of stress on the drivetrain. This is because as the front wheels turn, they are...

Thanks! Works great for me.

The process is the same, except Ford dumps fuel into the cylinders on the exhaust stroke...Kubota is more like GM with an extra injector right into the DPF. But if you are using your tractor a lot at high RPM (I flail mow with my MX4800 at wide open throttle) than regens are not until 35-50...

Maybe not a great pic, but it's what I use. RDS aluminum 60-gallon diesel tank, DOT-approved, with locking cap, fuel gauge, Fill-Rite transfer pump and hydrosorb filter, auto shut-off pump nozzle. I'm filling a B2920 and MX4800 that work in the field a lot. I can bring the fuel to them, and...

The MX4800 makes 118lb-ft. I’m not sure what the L4310 makes, but it is slightly smaller in displacement so I’m assuming less. The flail mower is brand new, identical to the other mower.

In addition to the power output, my brand-new tractor would not start yesterday! Sat fiddling with the key for about 10 min, moving all the levers to make sure everything was in neutral. Gauges swipe, warning lights come on, no crank. I'm sure a safety switch is failing somewhere... Plus, the...

Thanks - I don't get PM emails. I've dealt with Dave in the past and agree - great guy. I need to make sure this issue is not in my head before I bother those guys though.

I'm having a hard time believing this. Rated PTO horsepower reveals how much the HST uses. The difference between a gear drive MX4800 and my HST is 1.5 PTO HP. Nevertheless, this HST tractor still makes 1.5 PTO HP *more* than my L4310 GST. Heck, my 29HP B-series (HST) runs a 4-foot flail quite...

This particular field was not mowed last year at all, and obviously its mid July now. The grass is tall and thick. That might be part of my problem. I've never mowed this field my my old L4310. However, in a couple of months I'll be mowing 4 properties that I just mowed last month with the...

Hmm...I was in their shop recently. Interesting...I can ask. Thanks BAP.

Well, you and I use the same dealer and I'm quite certain they don't have a dyno... Maybe because the engine is new and not broken in it will gradually make a bit more power as things wear in.

Yes, I know. I also have a 2013 B2920 HST and it seems the performance from that HST is more "predictable." This MX has the hydraulic servo foot pedal which does make pedal input very easy but harder to have the "feel" of how much power you are asking for.

I bought a brand new MX4800 HST a few weeks ago and yesterday mowed a field with a 6-foot flail mower. It was the first "actual" use of the tractor besides moving it around my yard. In short, I feel like this tractor bogs down easily in heavy, tall grass...especially uphill...even when moving...

That is true...convection-effect circulation. There are probably more than a million EcoBoost trucks on the road today, let alone all the other turbo vehicles. I'd bet less than 5% of drivers allow their turbos to cool.

Majorwager, the intake valves will never *all* be shut together. So while there will be some restriction, it will not be complete. Turbos spin incredibly fast. It is a relatively short period that they spin after the engine is off, but long enough to create a problem. As for synthetic Super...

Majorwager, your tractor isn't DPF-equipped? Or was it just made before the regs hit? Hotter EGT indeed helps a regen. That's why pickups with diesels have to regenerate less if they are being worked hard...e.g. towing heavy loads. But that is based upon EGTs, not engine water and oil temps...