© 1999 Amada
13
6.2
Timer Board Adjustment,
NEMA 4 Enclosure
Compressed air is recommended to be set at 90
psig. The control timer is factory set to clean
one filter cartridge every 10 seconds.
If the filter cartridges are operating at a higher
than design pressure drop, it may be lowered by
increasing the frequency of cleaning. See Section
5.4, Operating Checks. The minimum off time
between pulses is three (3) seconds. Additional
cleaning energy may be obtained by adjusting
the pressure upward to a maximum of 100 psig.
Pulse ON time can be checked or adjusted by
consulting your local Amada representative.
If the filter cartridges are operating at a low
operating pressure drop, you may want to raise
to a higher pressure drop level by increasing the
OFF time between pulses on the solid-state
control board. See Section 6.4, Operating
Checks. This will greatly reduce your
compressed air consumption.
6.3
Airflow Adjustment
Airflow adjustments can be made by testing the
duct system flow rate and adjusting the volume
control damper to the desired system flow rate.
Adjust the flow rate to a level that evacuates the
funes from the cutting area.
NOTE
Check the blower fan motor amp draw to
the motor manufacturer's nameplate amp
rating. Over amperage will cause damage.
NOTE
At initial start-up with any new filter
cartridges, the fan motor may overload
because of airflow higher than design level.
If this happens, partially close a volume
control damper and check blower fan
motor amp draw.
NOTE
• Do not increase compressed air pressure
beyond 100 psig as component damage
may result.
• Do not increase or decrease pulse ON
time on the solid-state control timer.
Longer or shorter pulse ON times do
not aid in cleaning the filter cartridges,
they just waste compressed air and
cause shortened filter cartridge life.
NOTE
Excess airflow can cause shortened
filter life.
Summary of Contents for ADF4
Page 22: ...Replacement Parts List...
Page 32: ...1999 Amada 33 Notes...
Page 33: ...1999 Amada 34 Notes...
