I'd often wondered about doing something similar on our own trailer, and when we
bought the big hydraulic crane a while back it almost went on there, BUT (there
is always a 'but'!) the extra weight of the crane can be as much as 50% or more
of the trailer unladen weight, and when you have a fixed upper limit on what you
can tow, you suddenly start to look at reduced payloads.
Our trailer weighs just over half a ton (513kg) empty, and can go up to 2600kg
by axle rating, but only 2 tons is technically allowed behind the van.
The Land Rovers have a much higher trailer rating, up to 4tons or more depending
on model, so not so much of a problem.
I noticed that the vendor hasn't mentioned any gross weight for the trailer, but
with 760X16 wheels and tyres it is probably a couple of tons max.
Peter A Forbes
Prepair Ltd, Luton, UK
Yes I think so, in which case it's the cross country cargo capability.
I'll ask my boss tomorrow what the gross weight of one is. There is
something non compliant about the brakes on a standard Sankey IIRC
they need a modification for non military on road use. Mind with the
pintle height there's not many vehicles that can pull them.
They don't have the energy store handbrake, but they are presumably not required
to have them in the military, also there is no damper on the hitch which might
make it a little bumpy.
I know when my gas damper fails it makes like very uncomfortable, even when
Peter & Rita Forbes
On Thu, 28 Sep 2006 20:04:05 +0100, Peter A Forbes
That'll probably be it. I don't know when it became a requirement to
have a full weight plate, probably about 1986, but the sankey 3/4 ton
wide track in my boss's field ( he 'phoned to night so I asked him)
only says 3/4 ton as a description, no weight plate, so unless it's
built earlier I wonder if it is street legal.
Depends on year of manufacture, but my own experience is that most trailers get
little attention from the Law unless they are falling apart or are grossly
overloaded, or both!
Peter & Rita Forbes
A cheaper solution is to buy an engine crane from somewhere like
Machinemart. This has the added versatility of being portable so can be
used off the trailer. As Peter says, trailer weight can be a problem. A
portable crane can be carried in the van.
On the subject of trailer weight, last year I took a generator down to
IF for Paul. I had no idea of it's weight. My trailer is 2 tonnes so I
was confident there but the car is rated at 1.2 tonnes. As the trailer
weighs about 600kg empty (with sides), I was rather concerned. About a
mile from home is a VOSA weighing station and it happened to be manned
that Sunday. It was quite busy too pulling lots of trucks headed for
the local banger races but that's another story. I asked them very
nicely if they would weigh the outfit as I had a way to go. They
weighed each axle in turn and compared it to the plate on the car. As
long as each axle weight and total train weight were within limits, I
was OK. That surprised me as a light car with a heavy trailer would
have passed. At that point I accepted their ticket to show I was legal
and left doing some sums in my head. The trailer was actually OK as it
happened but VOSA didn't look at it that way.
As you found it's popular fiction that a trailer must be lighter than the
towing vehicle, so long as it's braked you only have to meet the train
weight limit of the vehicle, the axle weights of vehicle and trailer, the
nose weight range of the tow bar and any license restrictions (particularly
restrictive for recently qualified drivers). There are recommendations for
caravans to be lighter than the vehicle but that's all they are.
That's not quite how I meant it. My car is rated to tow 1.2 Tonnes by
the manufacturer. I can legally tow more than that provided the gross
train weight for the car is not exceeded. I have always assumed the 1.2
Tonnes was also cast in law. Apparently it's not, but the GTW is.
It depends on when you were issued your driving license. The law
changed in 1997, and if you had your license before that you are OK.
If you got your license after then best of luck trying to make sense
of the towing weight laws. You can find out all about it on the DVLLA
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The crane isn't a Hiab.
It's a 1500kg Harvey Frost Easiload (I have a 1000kg one that I'm
reconditioning to replace a Lucas swinglift and a mate has a 2.0t
HF-Epco one on his scrap hauler). They're a good strong crane but not
too heavy, so I doubt it'd hit the trailer payload too hard.
To be honest I wouldn't bother with a powered crane unless you're going
to use it all the time, one with a hand pump is lighter and more than
adequate (also, unless you plan to spend Megabucks and buy one with
powered slewing gear, you're stood right alongside during loading
anyway). The pump unit on mine is a bog standard Dowty "cube".
Since we (Dad & me) bought the old Daf 400 crewcab we haven't used any
of our trailers at all. Didn't pay much more for it than a decent
trailer would've cost either...
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