NX4510 HST Power

[justman777]

My tractor will bury itself in low gear before it runs out of power. I have the occasion intermittently help out visitors to my neighbors house because they don't tell people to stay on the road. We're in the sticks, so you should be able to drive on the sandy loam we have, right? Anyway, I've tandem pulled a large delivery truck out. Used low gear and about 1500 rpm. Never ran out of power, and the wheels kept spinning. If we hadn't pulled him out, the tractor would have just kept on digging.

 

[tmanmi]

Fluid is full. The tractor only has 25 hrs on it. Will change the filter at 50 and see what happens. Sounds like it it operating normal and I will have to adjust.

 

[tkh159]

Same issue here and I discovered this issue going up hill on the road in high gear without the pedal fully pressed down as if I did the rpms drop and tractor wants to stall. On level land in high gear the tractor operates fine but the few short inclines on the property is a no go in high gear.

So from previous post this sounds normal? The tractor has done this from day one and and currently has 50 hours on it and fluids are fine.

Not looking to break any speed records but just want to make sure the transmission is functioning as it should.

 

[ptsg]

Same issue here and I discovered this issue going up hill on the road in high gear without the pedal fully pressed down as if I did the rpms drop and tractor wants to stall. On level land in high gear the tractor operates fine but the few short inclines on the property is a no go in high gear.

So from previous post this sounds normal? The tractor has done this from day one and and currently has 50 hours on it and fluids are fine.

Not looking to break any speed records but just want to make sure the transmission is functioning as it should.

You're just experiencing the problem of HST in general. They are good to maneuver around and do a lot of direction changes but not so good in pulling loads, road driving or any ground engagement tasks.

Even on the slightest hill, in High range the tractor will bog down. Same for Medium range on steeper hills, maybe just not so noticeable.

A geared tractor would just keep going or if you're pulling a trailer, you may need to drop a gear on the move but it still goes.

 

[tkh159]

Thanks for your reply! I'm not familiar with HST as it was rather new to me but we needed something for maneuvering a lot and going backward and forward often and the HST works great for that especially have a forward pedal and reverse pedal.

Compared to the geared DK40 we use to have it's a world of difference!

 

[tmanmi]

I think it is just the nature of the beast. Learning what you can and can't do in each range. Hydro not the best thing for a field tractor IMO. Pulling a 6' disk in low range get a little bogging at full speed. Was able to pull the same disk with my Kubota L2500 in 5th gear all day long not bogging. I do enjoy the hydro for loader work and moving things around.

 

[justman777]

Same here for the engine bogging down in high gear. However, high gear is meant for transport. If you're trying to do any work in high gear, you'll be frustrated quite a bit. My go to range is medium for most work mowing or general loader work, and low gear for ground engagement like a disc harrow or box blade. I've pulled a 7 foot disc harrow in low with no bogging....but that's in sandy soil.

 

[tkh159]

I think it is just the nature of the beast. Learning what you can and can't do in each range. Hydro not the best thing for a field tractor IMO. Pulling a 6' disk in low range get a little bogging at full speed. Was able to pull the same disk with my Kubota L2500 in 5th gear all day long not bogging. I do enjoy the hydro for loader work and moving things around.

Loader work is a breeze now for sure!

 

[tkh159]

Same here for the engine bogging down in high gear. However, high gear is meant for transport. If you're trying to do any work in high gear, you'll be frustrated quite a bit. My go to range is medium for most work mowing or general loader work, and low gear for ground engagement like a disc harrow or box blade. I've pulled a 7 foot disc harrow in low with no bogging....but that's in sandy soil.

That's good to know! I use medium range for most everything and have no issue there even with a 6ft tiller or the 7ft land leveler/grader.

 

[tkh159]

So while on the topic of loss of power in high range....does anyone have any issue with operating a backhoe with the NX4510 HST or HST in general? I did notice in the beginning the HST was less HP than geared but hasn't presented an big issue.

Operation of the KB2485 backhoe seems fine to me with HST. Any one have some input on operation of a backhoe with HST versus geared?