5.
8.The amount of speed change from “Main” speed to either “Low” or “High” speed can be varied by using the “Speed Adjustments” located by the indicators.
A speed change of approximately 15% should give good performance under most conditions. However, some adjustments may be required to accommodate different drying situations. For example, if the moisture content of the wet, undried grain is not very consistent, then a wider speed change may be necessary.
To adjust the Low Speed or High Speed follow these steps:
a.Read the DC voltage in main speed and remember.
b.Move the moisture Set Point to force the unit into the High or Low Speed, whichever you wish to adjust. (Note red indicators).
c.Locate the correct speed adjustment potentiometer, and with a screwdriver adjust to the desired DC voltage.
Example
Want a 15% speed change from “Main” to “Low” Speed. Main Speed reads 50 Volts. Force the unit to “Low” Speed and the voltage reads 30. Adjust the “Low” Speed potentiometer to a new value of 42 Volts. Return the moisture Set Point to the original value.
Note: If the main speed is changed, some readjustment of the low & high speeds may be required to maintain the same speed change.
Note: Before leaving the dryer unattended, make sure that the output of the dryer in the “High” speed range does not exceed the capacity of the dry grain
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