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5.2.3
AIRLOCK
The airlock acts as a seal between the vacuum
and pressure sides of the machine and is located
at the bottom of the receiver tank. As the rotor
turns, a pocket is filled with material when it points
upward. As the pocket rotates, it is moved to the
bottom and is moved into the pressure side of the
system. The grain is picked up by the stream of
pressurized air and moved out the discharge
piping.
Efficient operation of the airlock requires a close fit
between the tips of the rotor and the case to
maintain a seal between vacuum and pressure
sides.
When checking or maintaining the airlock, follow
this procedure:
1. Clear the area of bystanders, especially small
children.
2. Disconnect the hydraulic lines from the tractor
to prevent airlock operation.
Fig. 5-17 Airlock Typical Location
Below Receiver Tank
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