Walinga AGRI-VAC 5614, Operator'S Manual And Parts Book

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Agri-Vac Operator’s Manual 34-18148-6 29
IMPORTANT
Do not attempt to raise boom
while airlock is in operation.
Fig. 4-6 Airlock Indicator Wheel.
Airlock Control (Control #4 fig 4-5) :
The right valve controls the operation of the
airlock. Pull on the control to operate the
airlock in the forward direction and push to
operate in the reverse direction. Stop the
airlock by placing the lever in the centre
neutral position.
Do not operate for long periods of time in
the reverse direction. The rotor is not
designed to operate in the reverse direction.
Reverse rotation may be used to free
jammed object in rotor only.
Watch and count the arrow revolutions on
the airlock indicator wheel to determine
airlock speed and direction. (Fig. 4-6)
Use Table 2 (Section 4.10) as a guide to
setting the airlock speed.
Airlock speeds depend on the product and the
distance conveyed. The airlock pockets
should be as full of the conveyed product as
possible.
To determine this, start with the airlock
speed slower than the recommended speed.
Increase the speed slightly when the
inspection window starts to be covered with
product that is not moving.
It is possible to run the airlock too fast, not
allowing the product to fill each airlock
pocket. Never exceed the recommended
speeds!
The longer the suction distance the slower
the airlock should turn.
Flow Divider (Control #5 fig 4-5) :
A flow divider in the airlock circuit is used
to control the airlock speed. Normal
operation should start at a setting of 5.
Move in small increments toward 0 to
decrease the speed. Move toward 10 to
increase the speed. Watch and count the
arrow revolutions on the airlock wheel to
determine the speed.