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3. THE FLUSHING PROCEDURE
Although the sampling connection was flushed in Step 3 of Section 1, it is
necessary to flush the ports in the monitor housing while the piping system
is pressurized.
1.
Turn the valve handle so the arrow points to STOP.
2.
Place the end of Bonding and Grounding Hose (1) in a container such as
a metal pail.
4.
3.
Attach the clip on the Bonding and Grounding Hose to the pail.
4.
Connect the MiniMonitor assembly to the quick disconnect coupler 5.
NOTE :
Connection to the sampling coupler can be made without risk of
spraying fuel by following this procedure:
A.
B.
C.
D.
Slide the collar of the coupler all the way as far as it
will go toward its threaded end.
Remember that the collar
does not open the internal valve.
Insert the connecting nipple in the open port of the coupler
as far as it will go without depressing the internal valve,
but continue to hold the collar.
Then quickly press the nipple straight in with a force of
about 25 lbs. and pull the collar back to its original
position.
This 25 lb. force causes the internal valve to
open.
A dry disconnection can be made simply by depressing the
collar while pulling outward on the nipple.
5.
Attach the grounding clip from the inlet end of the Hose (1) to the
pipe fitting where the sample is being taken,
Slowly turn the valve
to the FLUSH position and allow a minimum of one gallon to pass through.
NOTE :
If you have Model GTP-169, there is no flushing valve. However,
adequate flushing can be performed as follows:
Remove the membrane and pad from a used plastic monitor (2) and install
the empty monitor in the monitor housing.
Connect to the quick dis-
connect coupler (5) and flush at least one gallon through the assembly.
CONTAMINATION TEST PROCEDURE
1.
Turn the valve to TEST position
to allow fuel to pass through the
membrane in the plastic monitor.
Various specifications require different
amounts of fuel to pass through the membrane.
We recommend 3 gallons but
if a different volume is used, it must always be the same amount if results
are to be comparable.
2.
Turn the valve to the STOP position, release the quick disconnect and follow
procedure recommended in Section 5.
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