Basic Calibration Procedure (Continued)
Sowing Peas
Peas having the size and shape as illustrated in Fig 13 (e.g. White Field Peas), can be sown without problems with all Duncan Drills with this type of metering wheel.
The flap should be set to a gap of at least “3” on the flap setting lever (Page 15, Fig 3).
With these peas it should not be necessary to run the agitator shaft.
Peas having the size and shape as illustrated in Fig 14 (e.g. Green or Garden Peas), tend to bridge inside the seedbox and do not flow freely.
This
Fig 14
Hectaremeter Settings Setup
Refer to the installation and operation instructions supplied with your hectaremeter kit (1) for information on installation, calibration, operation and servicing (Fig 15).
Table 6 gives the effective working widths for the various machines depending on the machine size and the row spacing.
The calibration procedure described in the hectaremeter handbook involves accurately measuring the circumference of the tyre and entering and storing this value in the meter. The effective sowing width also needs to be entered. For measuring the tyre circumference and obtaining the rolling circumference of the tyre refer Recalculating the Constant (Page 18).
Note: If under certain operating conditions a calibration check indicates a significant difference in the rolling circumference of the tyre, the hectaremeter should be recalibrated by changing the H1 setting for the period of operation under those conditions.
Sowing Width
Row Spacing (mm) | 180 |
|
Effective Working Width (m) | 1.8 |
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Table 6
Fig 13
1Fig 15
22
