Case Puma cvx transmission

[Bobthebuilder]

For the money you've spent on the tractor the dealer should have someone capable of doing a proper handover and explaining how to operate it correctly.
You really should probably demand that they do.
Not knowing what you are doing and going on a steep field to learn is fecking crazy in my opinion, you could easily end up upside down at the bottom.

That's the problem nowadays, not everyone selling kit knows how to set/use properly

 

[stevedave]

With a auto command and most other varios are the same if you lift of the foot pedal completely the tractor thinks you want to stop so it will do accordingly and that is what leads to the wheels locking up on damp grass and slopes. Once you are used to it and get your head around a new way to drive you will find any gearbox other than stepless a massive backward step.

 

[ColinV6]

With a auto command and most other varios are the same if you lift of the foot pedal completely the tractor thinks you want to stop so it will do accordingly and that is what leads to the wheels locking up on damp grass and slopes. Once you are used to it and get your head around a new way to drive you will find any gearbox other than stepless a massive backward step.

That’s a massive help! So as previously thought the tractor doesn’t just take off free wheeling, more so that the transmission “brakes” as you let your foot off, if you do this too sharply it locks up.

I’d say staying away from mode 3 and using the exhaust brake should help matters, along with a gradual lift of the pedal rather than lifting right up.

 

[kiwi pom]

That's the problem nowadays, not everyone selling kit knows how to set/use properly

Yep stupid isn't it but if someone like Colin has a big accident because he wasn't shown how to operate the tractor, I'd say Mr Dealer would be on shaky ground.

 

[stevedave]

What I found when going down hill was if you are not using the exhaust break keep your foot on the drive pedal but ease off a bit and use left foot breaking. The masseys and our Claas don't have an exhaust break. you also need to be more or less going at the right speed to go down hill at the top of the hill not slow down on your way down you can't just knock her down a couple of cogs and stamp on the breaks.

 

[ColinV6]

What I found when going down hill was if you are not using the exhaust break keep your foot on the drive pedal but ease off a bit and use left foot breaking. The masseys and our Claas don't have an exhaust break. you also need to be more or less going at the right speed to go down hill at the top of the hill not slow down on your way down you can't just knock her down a couple of cogs and stamp on the breaks.

So if alongside a chopper going downhill, with a 90 degree corner at the bottom just have say range 2 set to 8mph max for example and ease off foot pedal to match chopper speed, with a dab of exhaust brake to match... in theory you shouldn’t need the normal brakes even in this situation? I assume gearbox in mode 3 for the most aggressive deceleration.. I’ll find out tomorrow what works best I suppose I’ll do the unmanly thing and pre warn the chopper man to bear with me in that field lol

 

[beltbreaker]

So if alongside a chopper going downhill, with a 90 degree corner at the bottom just have say range 2 set to 8mph max for example and ease off foot pedal to match chopper speed, with a dab of exhaust brake to match... in theory you shouldn’t need the normal brakes even in this situation? I assume gearbox in mode 3 for the most aggressive deceleration.. I’ll find out tomorrow what works best I suppose I’ll do the unmanly thing and pre warn the chopper man to bear with me in that field lol
[/QUOTE]
I wouldn't hit exhaust brake as it only works on tractor as opposed to trailer too as I almost came a cropper coming off tar on to an icy back road with our 155 no idea if our 230 dies the same.. maybe things have moved on....

 

[Drillman]

So if alongside a chopper going downhill, with a 90 degree corner at the bottom just have say range 2 set to 8mph max for example and ease off foot pedal to match chopper speed, with a dab of exhaust brake to match... in theory you shouldn’t need the normal brakes even in this situation? I assume gearbox in mode 3 for the most aggressive deceleration.. I’ll find out tomorrow what works best I suppose I’ll do the unmanly thing and pre warn the chopper man to bear with me in that field lol

I wouldn't hit exhaust brake as it only works on tractor as opposed to trailer too as I almost came a cropper coming off tar on to an icy back road with our 155 no idea if our 230 dies the same.. maybe things have moved on....
[/QUOTE]
Think I would just tell the hero on the grass clipping spitting machine to go at a safe speed for all concerned or p!ss off home.

 

[ColinV6]

So if alongside a chopper going downhill, with a 90 degree corner at the bottom just have say range 2 set to 8mph max for example and ease off foot pedal to match chopper speed, with a dab of exhaust brake to match... in theory you shouldn’t need the normal brakes even in this situation? I assume gearbox in mode 3 for the most aggressive deceleration.. I’ll find out tomorrow what works best I suppose I’ll do the unmanly thing and pre warn the chopper man to bear with me in that field lol

I wouldn't hit exhaust brake as it only works on tractor as opposed to trailer too as I almost came a cropper coming off tar on to an icy back road with our 155 no idea if our 230 dies the same.. maybe things have moved on....
[/QUOTE]

But.... on a dry summers day the transmission alone using the pedal should be enough to keep the tractor speed in check, isn’t that the beauty of cvt? what happens if a trailer pushes it past it’s target speed? Use the foot brakes to help as per a normal gearbox.

I’m probably way over thinking this

 

[beltbreaker]

I wouldn't hit exhaust brake as it only works on tractor as opposed to trailer too as I almost came a cropper coming off tar on to an icy back road with our 155 no idea if our 230 dies the same.. maybe things have moved on....

But.... on a dry summers day the transmission alone using the pedal should be enough to keep the tractor speed in check, isn’t that the beauty of cvt? what happens if a trailer pushes it past it’s target speed? Use the foot brakes to help as per a normal gearbox.

I’m probably way over thinking this
[/QUOTE]

I think JFDI comes to mind you have been in a seat long enough to know what to expect when things get hairy....

Cheers BB

 

[Frankzy]

But.... on a dry summers day the transmission alone using the pedal should be enough to keep the tractor speed in check, isn’t that the beauty of cvt? what happens if a trailer pushes it past it’s target speed? Use the foot brakes to help as per a normal gearbox.

I’m probably way over thinking this

Yes and... Yes

 

[ColinV6]

Well that was a piece of cake! Infact it was harder to match the chopper going up the hill rather than down it. If it changed range and then decided it needed to be back in the lower range the chopper could get away in front.

 

[stevedave]

They are good tractors and a very good transmission the cabs are well laid out and I think the best engine on the market. If it wasn't for the backup and general unhelpful attitude from NH we would never have left I must say my dealer was very good.
All stepless are a bit of a steep learning curve when you first get on them because they are such a different way to drive but one you have spent a bit of time on them you won't want to go back.