fuel dispenser truck

in former times fuel was brought to airplanes
by truck... now on the most large airports you
find underfloor pipes that carry kerosene to
the aircraft positions. And then there is this
very strange kind of fuel service truck:

There is a large hose, attached around the
whole truck, it will be connected to the fuel
hydrant. This hose is very heavy and rather
short... to make it more comfortable to
connect it to the hydrant, it has small wheels
(like a shopping cart) and to prevent accidents
there are warning lights and the open hydrant
is marked by flags.

On the truck the kerosene pressure is reduced,
the fuel is filtered (thats the large barrel)
and measured. There are very many pipes and
gauges and there is a small glass, where probes
can be taken to check if there is water in the
fuel.

Then the fuel is distributed to (1) a pipe
that can be rolled of, or (2) a lift. (1) is for
small aircrafts, e.g. the fueling bay of a 737
is located under the right wing and the fuel
servicer needs only a small ladder to reach
it. The lift (2) is to reach the underwing fuelling
bay of larger aircrafts.

There are some safety measures: You find
fire extinguishers and both the hydrant and
the aircraft are connected to the truck by
cables to prevent static discharges.