What RPM Do You Use

[rancher1524]

I have a B3350SU. This is my first Diesel Tractor. What RPM do members use just working with the bucket and using a grading blade. If I use a brush hog the RPM is around 2100, but this seems high for just grading or moving dirt with the bucket.

 

[dfh1977]

About 3000 if using tiller or 2500 if i am mowing grass with MMM deck. But that's just me.


Sent from my iPhone using Tapatalk

 

[85Hokie]

I have a B3350SU. This is my first Diesel Tractor. What RPM do members use just working with the bucket and using a grading blade. If I use a brush hog the RPM is around 2100, but this seems high for just grading or moving dirt with the bucket.

You'll find you movements are quicker with the rpms up higher. Never think that lower RPM is better for you or the engine. The bucket and 3-point all work off a pump that is efficient at a RPM that the manufacturer has designed - now will it hurt the pump to run lower....no......will it hurt the engine to run lower....no - BUT if you are grading and or lifting a heavy load, running the pump and or engine too low WILL cause the engine to bog down and THAT will cause a potential engine problems

You rotary cutter is designed to run at 540 .......would be best to run it close to that RPM

 

[toxcrusadr]

Glad this question was asked. I am getting used to my L4600 and had the same question. Just for reference the "540 PTO" line on my tach is at about 2500 I think. When using the loader I can usually do what I need to do at 2000 give or take.

I usually use the throttle quite a bit so it's not running super fast when it's not needed. For example if you go dump something and you're running back for another load, you probably don't need the amount of engine power you did for picking it up and hauling it.

Good to know how important it is not to run it too low, thank you 85Hokie. I don't think I'm in any danger of that myself because I'm not patient enough to wait for the loader when it moves that slow.

 

[Mike9]

My 540 PTO line is at 2500 too on my B6200.

 

[WFM]

Unless I'm chopping 1" + bushes or saplings . I rarely use 540 on the tach. Mostly I'm cutting grass and ferns. So 1500-2000 rps works great for me.
When I took my tractor to a dealer for the 50 hr checkup. I was talking to the service manager I told him this was my first diesel tractor and was kinda disappointed by the 1000 lb FEL lift capacity. To me a 38 HP is a big tractor and expected the lift to be more. One thing he said folks don't realize with the diesel is that it needs to be turning up the RPM's to get the full potential of the machine. So when I'm unloading a tractor trailer with pallet forks I really crank up the rpm's. But by doing so it also makes the hydraulics 'touchy'...

 

[D2Cat]

Choose a ground speed that feels safe for what you are doing. Don't let engine lug down, make sure RPM is high enough to provide the power you need for the task. Don't worry about what the numbers on the tach say, unless you're mowing.

 

[Tooljunkie]

I prefer to use a lower rpm for fine work with loader or forks. You will find it will lift as much at idle as wide open throttle. Just slower. A few extra rpms to keep engine from bogging and loading up is beneficial.

 

[WFM]

Tooljunkie I'm not a mechanic or engineer, but as I said in my other post. The service manger at the dealership said without the rpm's. You will not have the lift capacity. More rpm's =more power.

 

[D2Cat]

"Just grading and moving dirt" does not require lifting power. Therefore RPM's not required.

 

[1970cs]

You have a DPF system! You need to run it hard whenever you can! Less regens
plus your tractor has a DPF/computer that's been a problem child.

Pat