WPG MRTALPCH611LDC, Процедура испытаний

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TST-019 MRTALPCH CHANNEL
– Rev. 2016-310
Page 17 of 20
9) After confirming that the quick connect
does not leak, remove the cap from the
barbed fitting. Remove the pad fitting
from the hose and reattach the hose to
the quick connect. Attach the end of the
ball valve without the vacuum gauge to
the hose of the quick connect and,
using an additional piece of hose, attach
the end of the ball valve with the
vacuum gauge to the pad fitting. See
FIGURE 24 .
Repeat the vacuum test.

If the vacuum level, as shown on the
ball valve’s vacuum gauge, starts
and continues to drop, replace the
pad fitting.

If the vacuum level on the lifter’s vacuum gauge starts and continues to drop, replace the
hose to the quick connect.
10) If, in step 7, it was determine that the leak continued when the quick connects were
disconnected, this indicates that the leak is not caused by the connected quick connect, the
hose attached to the male quick connect or the pad fitting. It will exist between the quick
connect and the filter connection of the circuit being tested.
11) Test the quick connect by itself when
disconnected. Remove the hose from
the barbed fitting of the female quick
connect coupler. Attach the end of the
ball valve without the vacuum gauge to
this hose. Using an additional piece of
hose, attach the end of the ball valve
with the vacuum gauge to the barbed
fitting of the quick connect. See
FIGURE
25
. Note that the quick connect
assembly was unbolted from the
channel to provide easier access to the
hose and fitting.

If the vacuum level on the ball
valve’s vacuum gauge starts and
continues to drop, this indicates that the quick connect leaks when disconnected. Examine
the threads of the barbed fitting for indication of cracks. If the barbed fitting itself does not
appear damaged, replace the quick connect.

If the vacuum level on the lifter’s vacuum gauge starts and continues to drop, this indicates
that the leak is located further back, towards the filter connection. Continue to next step.
FIGURE 25
FIGURE 24