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Section 6: Maintenance
Figure 62
Purge Screen
6.3.3 Purge
The Purge cycle should be performed the first time the
Falex 400 is started, whenever the unit has sat unused for
15 days or more or whenever there is air in the lines and
the prime pump sequence failed to remove all the air.
Select the Purge button from the maintenance screen
[Figure 58].
Before beginning the Purge Pump operation,
be sure the sample beaker has at least 400 ml fluid and
attach the sample-in line properly, placing the filter end
into the beaker. Be sure there is a beaker under the prop-
erly attached sample-out line. Pressing the Start button
begins an automated prime pump sequence that cannot
be stopped once started
[Figure 62]
.
It's purpose is to flush
every line in the system with new fuel and expel any air
pockets. The purge sequence runs 21 minutes. Valves
are open and closed in sequence as can be seen by the
lighted Digital Points. The pump is adjusted to a flow rate
of 9 ml/minute. The Status bar returns feedback of the
purge sequence and the timer bar gives feedback on
how much time is remaining.
Following a successful purge, all air should be removed
from the lines. Dispose of used fuel properly and be-
gin tests.
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