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This section assumes that the user has read Section 3 and understood the functioning of the
6600. Please do not follow the sequence shown below without first reading Section 3.
The following steps show a typical use of the 6600 for checking aircraft instruments.
1.
Turn on the 6600 and perform the Self Test (NEXT SCREEN two times). Hoses should be
disconnected and at least one Pt, one Ps1 and one Ps2 port must be open to ambient. Pt,
Ps1 and Ps2 Vent valves must be closed.
2.
With ports still open to ambient, Set Ground (Function 7)
3.
Connect hoses between the 6600 outputs and the aircraft. Plug all unused Pt, Ps1 and Ps2
ports on the 6600. Plug all unused Pitot or Static ports on the aircraft.
4.
Select Function 8: Go To Ground. This will put Pt, Ps1 and Ps2 into Control mode with
targets of 20 knots for Pt and 185 feet (assuming your "Ground" was 185 ft.) for Ps1 and
Ps2. Wait for the targets to be achieved.
5.
Set the Pt target to 200 knots and GO.
6.
When Pt achieves 200 knots, put ONLY Pt into Leak mode, leave Ps1 and Ps2 in Control
mode.
7.
If Pt has a significant leak (more than 5 knots/min.) then first try and find the leak while
the 6600 is in the Leak screen. If you lose all airspeed while searching for the leak, cancel
out of the Leak screen and go back to Step 6 and continue to search for the leak. If you
need to disconnect ANY hoses on the aircraft or between the 6600 and the aircraft, then
a. Go To Ground
b.
Put Pt, Ps1 and Ps2 in Measure mode.
c.
Then disconnect hoses.
8.
Only after the Pt system is reasonably leak-tight, should you proceed to the next step.
9.
Leave the Pt target at 200 knots and set the Ps1 and Ps2 targets to 3000 feet above Ground.
Pt, Ps1 and Ps2 outputs should all be in CONTROL mode. Press GO.
10. When Pt, Ps1 and Ps2 targets have been achieved, put ONLY Ps1 into LEAK mode,
leaving Pt in CONTROL mode.
11. If the Ps1 port has a significant leak (more than 100 feet/min.) then first try and find the
leak while the 6600 is in the Leak screen. If you lose significant altitude while searching
for the leak, cancel out of the Leak screen and go back to Step 10 and continue to search
for the leak. If you need to disconnect ANY hoses on the aircraft or between the 6600 and
the aircraft, then
a.
Go To Ground
b.
Put Pt, Ps1 and Ps2 in Measure mode.
c.
Then disconnect hoses.
12. Only after the Ps1 system is reasonably leak-tight , should you proceed to the next step.
SECTION 5
TYPICAL USE
55
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