Stocks AG Fan Jet Mini 130, Original Operating Manual And Parts List

Page: 15 / 23

15
14.2
Spread width and pattern
BASIC RULE . The spread width is dependent upon the density of the granule or seed, and the disc speed (plus
other factors).
Large, dense granules and seeds with a high disc speed give the maximum spread width – small, light granules
and seeds will not spread as far.
Other factors affect the spread width:
Type of slug pellet.
Typically, a large, dense hard pellet should spread further than a small, light, soft pellet,
because it is comparatively heavy and does not powder on the disc. Typically, a ‘wet’ produced pellet will be
hardest, a steam produced pellet mid range, and a dry produced pellet the softest. However, the line between
traditional ‘mini’ pellets and ‘full size’ is blurred – most are of similar size and some lower priced dry produced
pellets termed, as ‘minis’ are actually larger and heavier than more expensive wet produced pellets, and can
have a good spreading characteristics.
Seed varieties and dressings. Different varieties and dressings will affect the density and the spread.
Wind Conditions. Dead calm conditions are the optimum; any wind will affect the width pattern.
High forward speed. The same as driving into a headwind of the same speed on a calm day, and this will peel
the edges of the spread pattern backwards and inwards.
Disc speed. Altering the disc speed will affect the width and pattern. A higher disc speed will give a wider
spread width.
Disc vanes. Ensure they are in good condition and not worn excessively. Replace if necessary.
Low disc height. Will not allow the product to reach its maximum width before gravity takes over.
Low electrical power. Will not allow the disc to reach full speed.
High application rates. Loads the disc more than a lighter rate and can slow it down.
Incorrect disc angle. It must be at least horizontal – not angled downwards.
NOTE it is the responsibility of the operator to ensure that no other persons enter the spreading
zone whilst the machine is in operation.
14.1 Setting the headland deflectors
Adjustable deflectors that reduce the exit aperture from the disc are incorporated into the Fan Jet to
physically limit the spread width for headland control.
Undo the black plastic knob at the rear of the chassis and slide each deflector around the disc as far as
required to prevent chemical granules from entering a watercourse of grass margin.
Re-tighten the locking knob.
NOTE Use the motor disc speed dial in conjunction with the deflectors, and the bias adjustment.