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7- DISTRIBUTION TYPE
IMPORTANT:
MAKE SURE THAT THE TURBINE
ROTATES AT THE SAME OPERATIONAL SPEED
BEFORE THE TRANSMISSION WHEEL STARTS
ROTATING. WHEN STOP SOWING, DO NOT
LESSEN THE TURBINE ROTATIONAL SPEED UN-
TIL DETACHING THE TRANSMISSION WHEEL.
7.1 WITH MECHANICAL DRIVE TURBINE
To guarantee the seed supply to the sowing shoes, it is indis-
pensable that the turbine rotates between 4200 and 4500
rpm; to do so, it is necessary to increase the tractor outlet
PTO up to a rotation speed of 1000 m. At lower speed, it is
possible that some seeds remain inside the hoses, clogging
them.
Fig. 7.1
IF THE SEED DRILLER IS DRAGGED ON THE
GROUND WITH THE AIR TURBINE UPWARDS,
THE SEEDS GOING OUT FROM THE DISPENSER
WILL CLOG THE COLLECTOR HOSE THAT FEEDS
THE VENTURI INJECTOR. IN THAT CASE, TAKE
THE COLLECTOR OUT AND REMOVE THE SEED
BEFORE RESTARTING THE SEED DRILLER.
THE ROTATION OF THE TRANSMISSION WHEEL
WITHOUT THE TURBINE IN OPERATION MAY
RESULT IN OVERFLOWING COLLECTOR HOSES.