18
3.3.4 SUFFICIENT AIR FLOW TEST
The following test can be done to determine whether the airflow is sufficient enough to carry
fertilizer or seed through the network of pipes.
1. After the fan speed is set according to the table: Plant at least 100 m at maximum planting
speed.
2. Stop, lift the planter and monitor the time it takes for the system to carry excess fertilizer or seed
through the pipes.
3. Normally, the system needs
3-5 seconds
to blow the pipes clean.
4. If it takes longer, it is a sign that product had gathered in the pipes. a Blockage is inevitable
given enough time.
5. Increase the fan speed in order to increase the lowest air pressure reading by 0.5 kPa.
6. Repeat the test from step 1 and increase the fan speed again if necessary.
NOTE:
It is normal that
the air pressure readings on the various tanks may vary. Normally the air
pressure reading on the front tank is higher than the rear tank.
NOTE: THE AIR PRESSURE READING RISES ONCE THE IMPLEMENT STARTS WORKING.
Once the product enters the airstream the back pressure increases in the system, which means
that more energy is needed to distribute the product. This new pressure reading will stagnate as
long as the application rate (kg / ha) remains constant. Monitor this pressure for any deviations. A
higher pressure may be an indication of a blockage, a lower pressure reading may be an indication
that the application amount has decreased. (A bin is possibly empty or a metering unit pintle cog is
stationary).
ADJUSTMENT OF THE AIR DIVISION IN THE DIFFUSER
The fan manifold is equipped with 2 setting tabs which ensures the equal distribution of air between
the various outlets. This setup is done in the factory. If the distribution is uneven, the following
procedure will rectify it:
•
Adjustments are made with the fan running and the PVC pipes from the manifold disconnected.
•
The test for equal distribution is simply felt by hand. Exact equal distribution of air for all practical
purposes is impossible, but close enough is sufficient because once the pipes are re-connected
the back pressure in the system has a positive effect to equalize distribution of air.
Содержание Econo 10000
Страница 1: ...OPERATOR MANUAL 3 SECTION MIN TILL AIRSEEDER 4500E 7500E...
Страница 7: ...7 SAFETY SIGNS...
Страница 8: ...8...
Страница 30: ...30 9 PROBLEM SOLVING...
Страница 31: ...31...
Страница 32: ...32...
Страница 33: ...33...
Страница 34: ...34...