Fan
¾
Is the hydraulic fan connected to a pressure-
free return flow?
¾
Are fan wheel and intake grille clean?
¾
Is the fan wheel tightly mounted on the shaft?
¾
Is the fan speed observed?
Pneumatic system
¾
Are tram line valves installed in the correct
seed lines for the tram lines? Has the tram line
rhythm been adjusted and do the flaps close?
¾
Do the seed hoses not sag and are they free
of water and deposits?
¾
Are all air lines between fan and coulters leak
tight and firmly connected?
¾
Does air flow uniformly out of all coulters?
¾
Has the air volume been set correctly on the
fan? Does the seed bounce out of the seed
furrow, or remain in the pipes and cause
blockage?
Metering unit
¾
Has the correct rotor been installed?
¾
Have the sealing lips been adjusted and are
they still serviceable?
¾
In case of small seed, has the cleaning brush
been installed and is it in order?
¾
In the case of large seed, has the scraper
been installed?
¾
Are all connections air tight and has the clear-
ing valve been closed firmly and leak free?
¾
Is seed coming out of all coulters?
¾
Is seed bridging forming in the hopper (par-
ticularly with husky seed)?
¾
Is the correct seed quantity being placed,
especially in the case of small seed?
After sowing
Empty and clean the hopper and metering unit
after sowing.
Seed and dressing may otherwise become
moist, sticky and cause seed bridging in the
hopper and the rotors. Metering and seed errors
could occur.
¾
Empty the seed hopper on the clearing valve
on the side. Place a suitable container un-
derneath and open the discharge gate, see
chapter
Hopper.
¾
Residues can be emptied through the fall
sluice.
37
