Walinga Agri-Vac 3510 Operator's Manual And Parts Book page 56

5.2.7 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 lled 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.
E cient operation of the airlock requires a pressurized
t 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. Checking Tip Clearance:
a. Checking the airlock can be done through the
inspection door at the top of the tank.
• Remove tank
Remove belt cover.
• Rotate drive system by hand and watch
tips rotate in airlock .Tips need to contact
the casing of the airlock and bend back
slightly as they pass from open area to
the airlock housing.
b. This contact of the tips must be maintained at
all times. Adjust or replace tips as required to
insure system sealing.
c. Replace any tips that are chipped or broken.
NOTE:
Tips are reversible if not excessively
damaged.
46
access lid assembly.
Airlock
Drawing
FIG. 33 MACHINE