AEC OFE Blender User Manual
Page 28
Loss-In-Weight Color Feeders
Chapter 6: Troubleshooting
27
Problem
Possible cause
Corrective action
?
Check the A/D load cell in
Diagnostics to ensure that the
load cell is not damaged and is
linear. Linearity can be
checked by adding several
weights of the same weight to
the weigh hopper and checking
to see that the A/D number
changes the same for each
weight (The manufacturer
recommends using large
washers of the same size). If
the A/D number is varying
quite a bit, it will indicate that
the load cell has been sprung
or overloaded. It will have to
be replaced.
Caution! Use care when
cleaning the unit,
or it can become
damaged.
Caution! Do not pull on the
weigh hopper!
?
Check to see that the additive
pellets are feeding consistently
out of the weigh hopper and
not bridging occasionally in
the hopper discharge throat.
Consult the factory if this is
the case. We also offer a
larger opening hopper (up to
2½ inches). The feeder is
designed for virgin pellet color
concentrate. It is not
designed for regrind
materials.
If the unit is inaccurate. Cont’d.
?
Check the extruder screw
speed pick-up proximity
switch to ensure that it is
reading the extruder screw
revolutions accurately.