Walinga Airlock 1008, Operator'S Manual

Page: 59 / 126

OPERATOR’S MANUAL
2. Ensure the supply lines are connected immediately after the blower outlet and before the
muffler (if present) and are approximately equal in length.
3. Loosen the gear clamps and remove the airline from the barb fittings.
4. Examine the interior of the airline and fittings.
a. If either have excessive build-up, low levels of dust is acceptable, there is
insufficient air pressure and/or volume entering the cavity.
b. Check to ensure there are no obstructions in the airline. Clear any obstructions.
c. If necessary, install a properly sized airline to achieve sufficient air supply.
5. Ensure all fittings are tight and reinstall the airline, securing in place with the gear
clamps.
6. Monitor and check the purge airline for accumulations to ensure the system is
functioning properly.
Inlet Wiper Blade
Efficient operation of the airlock requires a close fit between the tips of the rotor and the casing
to maintain a seal between the pressure differential of the inlet and outlet sides of the airlock.
The airlock wiper blade is located at the top left side of the inlet. It functions to level the material
for each rotor pocket as it moves out of the inlet area and into the casing. This ensures even
flow, reduced wear rates, avoidance of ‘out-of-round’ wear within the casing, prevention of
overfilling of each pocket, and reduces damage to both the blade tips and the conveyed
material.
To check the condition of the wiper blade, proceed as follows:
1. Clear the area of bystanders, especially small children.
2. Place all controls in neutral, stop and lock-out the power source, and wait for all moving
parts to stop.
3. Gain access to the airlock inlet by opening an installed access point or removing a
portion of the inlet structure. Refer to the auxiliary equipment’s operator’s manual to
determine the correct method of access to the airlock inlet.
4. Reach into the top of the airlock and check the overlap of the wiper blade with each tip.
Polymer wiper blades should contact each tip approximately 1/16 in (1.5 mm), solid
wiper blades should have a clearance of 0.030 in to 0.060 in (0.76 mm to 1.5 mm).
Reposition the wiper blade using the mounting slots to adjust the overlap or clearance as
necessary.
MAINTENANCE AND ADJUSTMENTS 00-144477-0 A 7-5