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4.3
Adjusting the Vibrator
a. If a Vibrator is included for pre-conditioning the feed material, the
vibrator must be adjusted in both amplitude and activation time. It
is important that only the amount of vibration required to keep the
auger full is used. Over vibration can cause material packing and
cause possible feeder damage. Do not run the vibrator
continuously.
b. Vibration adjustment is by trial and error and varies with material
and humidity conditions. Start by adjusting the vibrator amplitude
to its lowest level. The vibrator is furnished with an adjusting
screw to vary the vibration amplitude. Next, adjust the ON-OFF
cycle. Two timing cycle adjustments are provided: The length of
vibration time and the time between starts and stops of the vibrator.
Each adjustment is scaled from 0-100% and represents a cycle of
2-30 minutes. First, adjust the length of vibration to
approximately 3-4 minutes. Adjust the frequency between starts
and stops to a time that equates to approximately the amount of
time to empty half the hopper. If reliable, consistent material flow
is maintained, keep this setting. If the helix starves, increase the
frequency between cycles. If this does not solve the problem,
increase the duration of vibration. If the problem remains, go back
and increase the vibrator’s amplitude to maximum.
Summary of Contents for 100 VOLUMERIK Series
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