VL-VLP IM 19 JUNE 2017 © 2017 NOVATEC, Inc. All Rights Reserved
Page 14
Remove
Clamping Ring
Carefully
Remove Motor
Lid
10.1 CONVEYING NOTES
Materials, which contain a large percentage of fines or powder, may require increased filter
cleaning. This can be achieved by the following technique.
A) Set the load time to minimum.
B) Set the dump and pulse time to maximum.
C) Increase the compressed air pressure. CAUTION: DO NOT EXCEED 125 PSI.
11 MAINTENANCE
CAUTION: Disconnect electrical power and compressed air supplies before any type
of loader maintenance.
Typical maintenance for self-contained vacuum loaders consists of two main areas: Filter
cleaning and motor brush replacement.
11.1- VL Series - FLAT FILTER CLEANING:
VL Series loaders are typically used for conveying virgin pellets and/or regrind. The amount
of dust within the conveyed materials will determine the frequency of necessary manual filter
cleaning.
NOTE: Although the blowback system of the VL loaders will extend the operational life of
the filter media, it cannot be relied upon alone. Frequent checks of the filter accompanied by
thorough manual cleanings are required, in addition to cleanings during material changes to
prevent cross contamination.
The filter media may be removed for
inspection and cleaning by unclamping the
ring clamp of the lid, directly below the
motor. If necessary, unplug the control
cable and disconnect the air line.
Carefully remove the motor lid and expose
the flat filter directly below the lid. The filter may now
be removed for inspection and cleaning.
Vacuum cleaning the bottom of the filter is recommended
to remove
collected resin debris, dust and fines. If compressed air is used, be sure to
wear goggles and blow from the top (coarse screen side) of the filter down
through the filter media. Never bang the filter against a hard surface to dis-
lodge debris. Distortion of the media or sealing ring can result.
Once clean, thoroughly inspect the filter for severe wear, holes, tears and material abrasion.
Any break in the filter media indicates the need for new filter. Do not attempt to repair the
media. Remember that the filter protects the vacuum motor and holes or any kind of
leakage through the filter can allow material to pass into and through the motor, severely
shortening the motor’s life, possibly creating a fire hazard and sending material dust into the
air around the loader. In addition, examine the sealing ring around the filter media.
