190-01639-00
GSU 75 ADAHRS Installation Manual
Rev. 6
Page 3-8
3.6 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 GSU 75.
NOTE
Check pneumatic connections for errors before operating the GSU 75. 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 GSU 75.
Figure 3-4 GSU 75 Air Hose Fitting Locations
PITOT AIR FITTING
1/8-27 ANPT FEMALE THREAD
STATIC AIR FITTING
1/8-27 ANPT FEMALE THREAD
P751
340095
The document reference is online, please check the correspondence between the online documentation and the printed version.
