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16
Replacing Sensors
The most common issue customer’s encounter with parts on their needle
seeder is an air fitting called a “sensor”. These sometimes need to be
replaced, but life expectancy can vary greatly.
Before replacing a sensor, clean the area with the air gun on the operator’s
right side of the control panel to make sure there is no debris or
contaminant on or in the tubing. Attach the provided label marked “P” to
the air tube leading to the “P” section on the sensor before removing, as
this will ensure the airlines can be replaced into the correct section after
installation.
Remove the air tubes by pressing the black ring at the end of the sensor
fitting and gently pull away. These can sometimes be stiff.
With the use of a wrench, remove the sensor from the cylinder and replace
with a new sensor. It is not necessary to use thread lock on the fitting from
the sensor to the air cylinder.
Replace tubing ENSURING the line you have previously marked with “P”
goes back into the “P” section of the sensor.
Figure 19. New sensor showing S & P
airline sections and “P” label.
Figure 20. “P” label placed on correct
“P” airline before sensor removal.