to make use of it :
the apparatus, well with arms well extended, so that the spade or
the fork is perpendicular to the ground
the pedal - support until complete insertion of the spade or the
gently on the lever. While maintening the heel on pedal, lift the
end of the foot.
The pedal being thus raised, the lump of earth will be in suspension
on the spade.
push with the toes and lower the arms, the ground will turn
over without effort. With a little practice, the foot should not
leave the pedal - support any more (which increases the speed of the
digging). The used tools are those of the trade, with open casing.