Page 6-8 G900X/G950 Installation and Maintenance Manual – GDC 74A
Revision D
190-00719-00
6.6.4 Pneumatic
Connections
The installer is required to fabricate pneumatic hose connections and attach the aircraft pitot pressure
source and aircraft static pressure source to the GDC 74A.
CAUTION
Check pneumatic connections for errors before operating the GDC 74A.
Incorrect plumbing could cause internal component damage. Observe
the following cautions when connecting pneumatic lines.
1.
Make sure the aircraft static pressure port is plumbed directly to the unit static pressure input port and
the aircraft pitot pressure port is plumbed directly to the unit pitot pressure input port.
2.
Seal the threads of pneumatic fittings at the connector ports. Use caution to ensure there are no
pneumatic leaks.
3.
Use care to avoid getting fluids or particles anywhere within the pitot and static lines connected to the
GDC 74A.
Figure 6-2. GDC 74A Unit on Rack, Pneumatic Ports and Connector View