"Graham G" <
[email protected]> wrote in message
news:
[email protected]
>> I own a 7490 DynaVT. Marvellous piece of kit. I believe I am due an
>> engine flash file soon and some linkage stops to attach to the hitch.
>
> As it happens, I've just spent the weekend on one of those ploughing. They
> are good! Have to say though, I prefer the fendt. What made you choose
> that over the competition, its useful to have other peoples opinions when
> trying to sell something.
>
> Graham
>
Likes
Left hand reverser.
Very easy for the casual driver to just jump on and vary speed simply by
pushing or pulling a lever. It can be driven like this quite efficiently by
those who do not wish to use automated functions.
Easy to use linkage control with a central stop position to the rocker
switch.
Two choices for speed changing in lever mode, the dynashift lever and the
seat lever.
Two engine memories plus hand throttle.
Forager mode where top speed can be selected and the tractor left to cruise
at maximum power with a choice of how much the engine dies down before the
transmission slows using 'supervisor' dial.
Two selectable speed [cruise] controls that can be used in conjunction with
forager mode [or any other mode] to allow fast headland operation and slow
entry into a swath for instance. Temporarily cancelled the tractor returns
to work speed controlled by work load with a maximum speed that can be
instantly changed if need be as described below.
Particularly nice is the SV2 knob which alters the maximum speed in forager
mode. If turned slowly the ground speed increases in 1 kph increments. Turn
it faster and speed increases in 2 or even 3 kph increments.
Tractor defaults to lever mode on engine start. Some of the others start in
pedal mode which is OK if it is used constantly for transport I supose.
Easily set start-off speeds indepandantly set for low and high range and
foward and reverse. Absolutely simple and intuative.
Superb electric joystick control of spools with easy setting of flow and
timed detents, especially with the Datatronic module fitted to mine. As a
loader tractor it has to be experienced to be believed.
Exceptionally quiet cab.
Nice light interior with an usable passenger seat which does not have to be
folded for the driver to exit.
Exceptional fuel economy in all work, especially compared to my NH 8360
range command which is 20hp less but uses more fuel for every job and
massively more for heavy work at high revs.
Good fuel economy compared with my Same titan160 which has far less torque
and inferior engine characteristics.
No internal transmission clutch packs which compares with the opposition
which have forward/reverse packs and several speed clutch packs.
Exceptionally smooth speed changes with no jerks.
Very simple and effective front axle suspension with few grease nipples or
wear prone joints. No continuously operating twin rams for axle articulation
either. Also it can be switched off for loader work to save wear and tear
even further. No panhard rod, chains or big load bearing under the tractor
belly.
Very simple and effective cab suspension with no panhard rods or
potentiometers as far as I can see.
Very easy access under and around the cab which is in marked contrast to the
opposition and indeed to Fendt, although this is a result of the cab being
mounted quite high.
Nice narrow bonnet for great visibility compared to every one of the others.
Dislikes.
The sort of dynamic stop when the 'clutch' is fully pressed and pulled back
a bit. This can be a nuisance in some situations.
Engine is rather noisy.
Transmission is quite noisy at 50kph but the cab is quiet so the contrast
when the rear window is opened is large.
The tractor is tall, especially with my 42'' wheels and care needs to be
taken to release the door handle before jumping off the lower step or a
dislocated shoulder could result.
Full factory fitted air brake system should be an option rather than dealer
fit.
Brakes could be lighter to use considering the rather good on paper spec.
Stabilisers should be self centring and locking like the waltersheid units
fitted to my previous JD. This would keep the links still when they are not
in use and stop them hitting the auto hitch lift rods.
Bonnet should be one piece and lift, but this is a minor point.
Electric mirrors do not extend or retract electrically and tend to have the
shakes.
I'm not a great fan of pedal mode for transport use.
If lever mode is used at full road speed and the tractor overspeeds slightly
then the transmission ratio changes so that the engine speed rises but the
ratio has to be manually speeded up again by pushing the lever forwards.
In forager mode and at high revs where the hand throttle lever is used to
limit forward speed, it is too easy to brush the seat speed control with an
arm. This results in the transmission defaulting to lever mode where the
engine memory is cancelled, resulting in the engine speed dropping
alarmingly to the hand throttle setting. Quite disconcerting when it happens
with an actual forager at full load. Easily adapted to though, but a casual
driver could be caught out.
Summary.
Totally awesome machine which is simple for any stockman to drive but
sophisticated enough to please the most enthusiastic proffessional. I have
tried them all and this thing rocks.
Huw
Heeeeeeehehhehheheheheh.