System Maintenance Manual

G1000/GFC700 System Maintenance Manual – C90A/C90GT/C90GTi King Air Page 6-11
190-00682-01 Revision G
6.17 GEA 71 Backshell Thermocouple Removal & Replacement
The GEA 71 has a K-Type thermocouple (Item 1 shown below) installed in its backshell, in addition to
the configuration module. The thermocouple is used in conjunction with the configuration module
temperature sensor to compensate for temperature probe errors resulting from the dissimilar metals at the
pin contacts.
Figure 6-2. GEA Backshell Thermocouple
Table 6-2. Thermocouple Kit (011-00981-00)
Item # Description Qty. Needed Garmin Part Number
1 3” Thermocouple, K type 1 925-L0000-00
2 Pins #22 AWG 2 336-00021-00
3 Screw 1 211-60234-08
Removal:
1. Remove GEA 71 per Section 6.4.
2. Remove GEA connector backplate.
3. Remove connector J711, item 5, from the backplate.
4. Remove cover, item 6 from the backshell.
5. Unscrew thermocouple from boss on backshell. Extract the thermocouple pins from the
connector.