Having been extensively
tested over two Autumn seasons, this is now in the paint shop being prepared
for a valued and exacting client of old. It will be very special.
This tractor has never been here before, but
has been known to us since day one.
It was bought by a contractor, along with
combines, cultivators, etc, to whole farm contract an estate.
He managed to do one year before the Brussels
'experts' ! decided to change the set aside rules dramatically and
As we all know it takes farming a little longer
Little things like rotation, breeding and
altering stock levels, etc, - the sorts of little details that the politicians
The net result was that a large proportion of
the estate went into set aside, and there was no longer a job for a whole farm
I'll bet I can guess what his vote will be
I was asked by a finance company to bid on some
of the gear, and I was outbid on the one year old tractor by an estate up
The tractor remained on the radar because two
local estates up there are clients.
Until we bought it, there had only been two
Sadly after many hours of relatively trouble
free work, it all went dramatically wrong 'up front' in spring 2013.
The engine went off to an extremely well
qualified workshop (work it out), and cost well in excess of 10K to rebuild.
The engine came back and along with a few other
large tractors on the estate, this one worked the autumn of 2013, and the spring and autumn
of 2014 .
Right at the end of 2014 horror struck again in
axactly the same place up front - number 6.
How odd !
It was out of it's rather limited warranty and
upon visiting the same workshop, more used to dealing with the higher finances of
the oil industry,
the prognosis came back that a complete new engine was
So with agriculture not reading from the same financial script as
the oil industry, this meant that the old girl was therefore effectively a
Thank you folks for selling it to me and giving
me the opportunity to realise something that's been on the cards
since we stopped building the Amtrac Lioness tractors,
- and hopefully, without me losing a shed load on a project.
This old bird is one of the last of the model
range and wearing the right axles for the job.
The old engine will be rebuilt in due course,
and kept as a spare.
A close and newer rellie of it is now being
totally rebuilt, despite it being obvious upon inspection, that it isn't long
since it was last rebuilt.
It didn't need the rebuild, but lets start from scratch.
Being a fully electronic run engine (which has
it's own problems with matching the non electronic tractor), it gives huge
potential for engine tunings to suit our farming conditions this side of the
Initially it will be 518 bhp @ 2100 rpm with
1733 lb/ft @ 1200 rpm - a torque rise of 33.8%, with incredibly good fuel
The Quadtrac 500 - 500 bhp @ 2100 rpm,
with 1743 lb/ft torque @ 1400 rpm, 39.2% rise, working power band 700 rpm.
Weight 23.35 tonnes.
The Quadtrac 450 - 450 bhp @ 2000 rpm, with
1669 lb/ft torque @ 1400 rpm, 41.0% rise, working power band 600 rpm. Weight
This 9370 + will have 518 bhp @ 2100 rpm, with
1733 lb/ft torque @ 1200 rpm, 33.8% rise, working
power band 900 rpm. Weight 14.58
That's almost ten tonnes less of dead weight to drag
around, leaving that ten tonnes worth of power to be used for whatever is
That only works out at a 34% torque rise on the
face of it, but the extra wide power band over 900 rpm, instead of 600 or 700 rpm,
be very useful, and in reality the all important torque remains
This tuning was originally designed for an
American locomotive, and if you think about it, they too have to really haul -
like a tractor.
It also opens up fuel and noise savings, using
a higher gear on other than full load jobs, and being able to run at the most
economical 1750 rpm area
with loads of back up still left right down to
1200 rpm for the tough bits.
Should be light on its pins too.
Since it will initially only be driven by us and it isn't
for sale, I would hope that we know how to treat a geabox with respect.
Later, and with little effort, 525 bhp with
1850 lb/ft - 40%- is available if needed.
We also have a set of dualled 800 x 32s. (and a
Could be intersting. - Better cultivation
timing. - More efficient fuel
usage. - Improve soil structure by having less ground pressure - etc.
Those of you who know what goes
on here from the past will know that this is an experiment, and once the formula
is worked out, others will follow as needed.
It's been planned for some
time, but really started in earnest last Feb, when it looked likely to anyone
north of Watford Gap, that we would be leaving the EU.
That means that the extra cost
of the EU only testing requirements can be saved, and the tractors can be
available for the UK and the rest of the world to buy .
Since the demand for them in
these areas can not be met by us anyway, sadly they will not be available in the EU.
I have added the following note
because I had no idea how many sad geeks like me there were out there, who
actually bothered to look at these pages
That was until the friday evening
after our 'Brexit' vote, when a load of e-mails came in from around the world in response to the
item in red above.
Very many thanks to you folks
for your kindness and astonishing level of support.
I just have to put in here
parts of one e-mail which had me in stitches, from an American client who said
"....and did I detect just
the slightest hint in that red bit, of our well known digit raised to the
vertical position ?"
I replied " you might say
that, but I couldn't possibly comment ."
The "plus a bit" is taking shape.
Wiring and Ancilliaries below
Other pics of it in place to follow.
The engine has life
off up front while underneath machanicals checked, gearbox and front diff
rebuilt and refitted.
Next bonnet to fit
and trial field power testing.
Same field, 6m
cultivator, depth, and similar moisture content as last year,
when a Quadtrac
525 achieved over 1.75 kph less than this one.
covered 37 ha of awkward shaped fields in about nine hours.
Discs at 125mm. 27
tines at 250mm. double press. 12kph.
Today should be
better since we've lowered the tyre pressures
just been through a bog at the bottom of the hill).
Same field as
Quadtrac 525 video last yrar, but wetter (actually raining).
A worthy successor to wear the AMTRAC