Read the road and terrain and you don't need to jump on brakes imo
How to get a loaded trailer down a steep bank with Dyna VT
- Thread starter fiddler
- Start date
How are you getting on with using stick mode on the road? Am I missing some setting or does it just not change engine rpms by itself in stick mode?
davidroberts30
Member
- Location
- pembrokeshire
Stick for speed,pedal for throttle in stick mode
Cowabunga
Member
- Location
- Ceredigion,Wales
In stick mode I drive it like a combine with no automation. Choose your ratio on the stick but I also have one forward speed memo button set to top speed, so that until I override it by braking or pulling back on the stick or slow the engine speed to idle, it retains that ratio. There is another mechanism that overrides the ratio temporarily also and that is the engine load monitor or governor. On my older model this is easily adjustable by the driver and for transport I usually set it to allow a 30% engine speed drop due to overload before the transmission ratio lowers automatically to maintain those revs at no less than 1600.
You can also use the hand throttle or an engine speed memory to give your throttle foot a rest if you are a more experienced driver and conditions allow.
- Location
- Northumberlandia
Its fine for me i just pull it back slightly to ease off or take throttle off or a bit of both at same time.
Run two Dyna-vt tractors now neither is ever in pedal mode i hate it with a vengeance
- Location
- Northumberlandia
if you are moving tractor down a hill it will up the revs yes but all depends on how much weight vs the angle of the hill as too what happens.
Best advice is go canny down a hill long before its away on you & no brakes will ever stop it.
Often run my 14t trailer on a ave hill but descend from the top with caution as you would do with any other tractor.
yeah I do that going down a hill, even dad does it. I guess the thousands spent on getting brakes fixed after he ruined them made him drive with a bit more care. Still completely lets off the pedal at full speed before turning at a junction for example
Cowabunga
Member
- Location
- Ceredigion,Wales
Yes, decrease the gear ratio as you would a normal gearbox or powershift when descending hills at on the road and slow down by a combination of engine braking and cadence foot braking. Some are under the false impression that the VT/Vario transmission lacks engine braking but that is quite mistaken. The only issue is that it is a 50kph transmission and if you go down a steep road in a high ratio then there will obviously be little engine braking just as if your truck or car were descending in top gear. Pull back on the stick to decrease the ratio and use common sense to also brake appropriately.
Be aware that if you are pushed faster than the tractors top speed on a downhill gradient the ratio will, on some models at least, downshift unexpectedly sending engine revs off the dial. This is to be avoided at all cost, so slow down.
Personally I avoid using pedal mode on the road. It may be OK if you are in a flat area but here in my part of the country, where it is anything but flat, using pedal mode on the road is best avoided in my opinion.
Be aware that if you are pushed faster than the tractors top speed on a downhill gradient the ratio will, on some models at least, downshift unexpectedly sending engine revs off the dial. This is to be avoided at all cost, so slow down.
Personally I avoid using pedal mode on the road. It may be OK if you are in a flat area but here in my part of the country, where it is anything but flat, using pedal mode on the road is best avoided in my opinion.
- Location
- Northumberlandia
Thats what i dont get its the deceleration of a dyna-vt in pedal mode no matter where you have settings set too.yeah I do that going down a hill, even dad does it. I guess the thousands spent on getting brakes fixed after he ruined them made him drive with a bit more care. Still completely lets off the pedal at full speed before turning at a junction for example
you get none of that in joystick mode & i dont want it doing it neither.
Pretty much what kills a vario gbox so am informed in the wrong hands.
Yet Fendt folks get on with this Pedal mode all fine must be totally different software & no doubt thats why. ive never driven one so cant comment.
Kind of like DTM on the Dyna-vt i dont see the point of it. plus will it heck switch off on a headland turn & tractor wants to speed up or slow down far too much on its own.
Ive watched the fuel usage just doing a light task such as rolling with revs set to 1300 & say 9kph speed.
Load eases off going down hill revs dont move but fuel usage drops off & then increases back up the same hill, fuel use ups a little.
DTM on its no different just the revs drop off a bit & then up again travelling back up the hill
Conclusion no benefit in fuel savings & you wonder if the engine is working when it throttles it back.
Id rather run engine as a constant & adjust speed with stick or cruise engaged.
When did you last service your trailer brakes?
- Location
- Northumberlandia
There only hydraulic & work the same on all tractors regardless, serviced before i bought that bigger one, but its operating just the same now.
Remember they only come out for 3 months of the year !! all of them
So you don't service them annually then?
You must have your decelleration set very high,.
Pedal mode on our 76&77 Vt's is very good. Less good on the 7490, but forager mode on that one is great for hedge cutting.
Cruise on the 76&77 better than the 74's - tell it the target speed and it will do it. On a 74 a cruise speed is just like a gear on a manual tractor - essentially a fixed wheel speed, as oposed to a fixed forward speed.
With you re DTM, hardly ever use it
DTM is just masseys name for TMS isn't it, may be a bit different but I dont really know. But cruise on a 74 why have I not heard about that?
- Location
- Northumberlandia
Afaik yeah its much the same thing
Cruise has been available on all massey Dyna-vt's since day1 on 7400 its SV1 & SV2
on later & current models its C1 & C2 all both easily adjustable in 0.01kph increments on the move.
Easier to adjust on the rotary dials on the 7400 tho imho over the later thumbwheel style, Massey always knows best tho
- Location
- Northumberlandia
tried it all settings on older & current models its all much the same.
I much prefer a tractor to ease off when you back the throttle off like any other trans on a tractor behaves.
You're not adjusting the right things if it makes no difference
- Location
- Northumberlandia
basic checks everything is working yeah but dont rip hubs apart that often no.
ive not replaced a single trailers braking shoes ever on this farm.
to be honest there not used that much.
Never fitted brake parts to a tractor neither
My from new 1995 10t AS Massey painted trailers brakes work just the same as day1 they have never been changed.
Its just done its 26th harvest & brakes still doing there job fine. its hubs have been off in the past & greased bearings etc.
- Location
- Northumberlandia
I'll just stick with stick mode you have none of these issues heheee
So thats what the two orange sv1 and sv2 buttons on the armrest are for? Do they only work in stick mode or?Afaik yeah its much the same thing
Cruise has been available on all massey Dyna-vt's since day1 on 7400 its SV1 & SV2
on later & current models its C1 & C2 all both easily adjustable in 0.01kph increments on the move.
Easier to adjust on the rotary dials on the 7400 tho imho over the later thumbwheel style, Massey always knows best tho