CAMCORP CAM-AIRO Vertical Cartridge - Manual (Page 38)

CAMCORP, INC.
Phone: 913-831-0740 Fax: 913-831-9271
www.camcorpinc.com
Section 6- Troubleshooting
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Excessive Pressure Drop Across Filter Cartridges
The differential pressure gauge or manometer on your dust collector
should read 6” w.g. or less. Higher readings and/or steadily increasing
readings are an indication that the main airflow through the dust collector
may be restricted and a potential process problem such as poor suction
at duct pickup points may exist. In extreme cases (over 17” w.g.) filter
cartridges will be damaged. Check the following:
Pressure Gauge
Check the differential pressure gauge or manometer and the tubing
leading to the dust collector for proper operation. Disconnect the lines at
the gauge or manometer and clear with compressed air. Look for loose
fittings, cracked, broken or pinched tubing. Make sure that the gauge is
zeroed or that the manometer is level, zeroed and contains the correct
fluid.
Compressed Air System
Inspect the compressed air system as follows to make sure that all of the
filter cartridges are being cleaned:
If none of the solenoid valves are operating when the smart timer is in
manual mode, check the timer using the “Troubleshooting the Timer”
section.
Check the air pressure at the compressed air manifold. It should recover
to 80-90 psig before each pulse. If not, check to make sure that the
compressed air supply system is in good operating condition, correctly
sized, and supply lines are not too small or restricted. Listen for the
sound of compressed air flowing continuously through one or more
diaphragm valves. This is an indication of a valve or valves “stuck” in the
pulsing position. The usual causes for this condition are either a leak in
the tubing between the solenoid and diaphragm valves or dirt in the
solenoid and/or diaphragm valves.
Check to see that all solenoid valves are firing by putting the smart timer
in manual mode and holding a finger over each solenoid exhaust port as
described in the “Start Up Checklist” section.
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