ICON A5 MM : Fuel System : Check Valves : Maintenance Instructions : Install Lower Fuel Check Valve
Install Lower Fuel Check Valve
100353-00
Use this procedure to install the Lower Fuel Check Valve.
Applicable Aircraft Serial Numbers
00021+
Type of Maintenance
Line
Level of Certification
LSA-RM
Task Specific Training Required
No
Special Tools Required
None
Parts Required
CK375-M (CHECK VALVE, AN6)
Aircraft System and Number
07—Fuel System
Safety Equipment
As Needed
Consumables
None
Task Instructions
1. Ensure threads on the Fuel Return Line are clean. Remove any plugs
2. Install the new Check Valve into the Fuel Return Line. Orient the Check Valve so that the flow direction arrow points down towards the Fuel Tank.
CAUTION: 
Improper installation can result in damage to the fuel system.
3. Torque AN-6 B-nuts on both ends of the Check Valve to 110-130 in-lbs.
4. Install the P-Clamp over the Check Valve.
5. Secure the P-Clamp with a #10-32 Self-Locking Nut. (Figure 177) Torque to 20 in-lbs.
6. Turn on the Fuel Shutoff Valve, turn on master power, turn key to A position, and check for leaks.
7. Install the Seat Backs. (Install Seat Back)
8. Install the Fuel Filler Cover.
9. Install the Baggage Sidewall Panels. (Baggage Sidewall Panel Installation)
10. Install Baggage Floor. (Baggage Floor Installation)
Verification Method
Complete engine test run and check for leaks. (Engine Test Run)