The fan speed setting for
fertilizer
placement must be checked
on all coulters before starting work
and also at regular intervals when
working on large areas.
Fan impeller and protective grid have to be regu-
larly checked for deposits and cleaned.
Deposits on the protective grid restrict the air flow
and thus lead to blockage in the hoses.
Deposits on the fan impeller cause unbalance.
The bearing will thereby be overloaded and can
be damaged.
Checks and maintenance
¾
Ensure a leak oil return flow pressure of max.
5 bar.
¾
Clean the protective suction grid at regular
intervals to prevent a restriction in air flow and
resulting blockage.
¾
Clean any dirt or deposits from the fan blades
to prevent unbalance and damage to impeller
and bearing.
¾
Retighten the clamping taper on the fan shaft
(see chapter Fan Flange).
Fan speeds
The required fan speed depends on the
fertilizer
quantity.
Travel speed, weight and shape of
fertilizer
in
form of granules or powder and other factors also
have an influence on the required air quantity.
For uniform transverse distribution you should
always aim at the highest possible speed (higher
than approx. 4500 rpm), whereby the
fertilizer
should not be blown out of the seed bed.
The
correct speed must always be determined
by
field tests or during a test placement.
The speed of 4500 rpm must only be fallen short
of if a measurement of the transverse distribution
revealed correct distribution at a lower speed.
For measuring the transverse distribution you
should contact your HORSCH Service Department.
F
ertilizer
quantity / fan speeds
Maestro 16 / 24 SW
Travel
speed m/h
fertilizer
lbs
/a
c
Rotation
speed
rpm
5
<
265
4500
8
<
175
4500
Depending on the type of
fertilizer
, the
max. possible quantity may even be less.
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