ICON A5 MM : Fuel System : Check Valves : Maintenance Instructions : Remove Upper Fuel Check Valve
Remove Upper Fuel Check Valve
100528-00
Use this procedure to remove the Upper Fuel Check Valve.
Applicable Aircraft Serial Numbers
All
Type of Maintenance
Line
Level of Certification
LSA-RM
Task Specific Training Required
No
Special Tools Required
None
Parts Required
CK375-MM-14-BRP (CHECK VALVE, .8-1.2 BAR, AN6)
Aircraft System and Number
07—Fuel System
Safety Equipment
As Needed
Consumables
None
Task Instructions
1. Remove the Headliner. (Headliner Removal)
2. Ensure the Fuel Shutoff Valve is closed.
3. Have a rag or container available to contain any fuel that leaks from the fuel lines and filter.
4. Loosen the AN-6 B-nut at the top of both T Fittings. (Figure 178) Catch the fuel as it leaks from the joint.
Figure 178. Upper Fuel Line Installation
5. Remove the Check Valve and attached tubing and place on a clean work surface.
6. Plug the open Fuel Return Line in the aircraft. Wipe away or clean any fuel which may have dripped inside the cabin.
7. Loosen the AN-6 B-nut on each end of the Check Valve. (Figure 179)
Note: 
The AN-6 90° Coupling is not symmetrical.
Remove the Check Valve.
Figure 179. Upper Fuel Check Valve Subassembly
Verification Method
Install the new Upper Fuel Check Valve. (Install Upper Fuel Check Valve)