ICON A5 - Page 376

10-34 FUEL SYSTEM / FINE FUEL FILTER
ICON A5 / MAINTENANCE MANUAL CHANGE C2
CHAPTER 10
874060 (FILTER, FUEL, 6.5 MICRON)
Aircraft System and Number
07—Fuel System
Consumables
None
TASK INSTRUCTIONS:
1. Place a new 14mm ID copper washer, that came with the new filter, on the 14mm adapter fitting.
Thread it into the new 6.5 MICRON FUEL FILTER. Torque to 260-280 in-lbs using two 3/4
wrenches. See Figure 10-14.
2. Place a new 12mm ID copper washer, that came with the new filter, on the 12mm adapter fitting.
Thread it into the new 6.5 MICRON FUEL FILTER. Torque to 180-200 in-lbs using a 7/8 and 3/4
wrench.
3. Use a 3/4 wrench to hold the 12mm adapter fitting at the fuel filter outlet and a 11/16 wrench to
torque the -6 AN B-nut to 110-130 in-lbs. See Figure 10-13.
4. Locate the fuel filter assembly in place on the aircraft and loosely thread on the -6 AN B-nuts.
See Figure 10-12.
5. Position the fuel filter assembly so that there is 0.75 to 1.25-inch clearance between the top bend
of the filter bypass tube and the carbon wing spar. (This slightly tipped back positioning ensures
clearance to the headliner.) Snug the connecting -6 AN B-nuts finger tight.
6. Install the B-clamp around the fuel filter, install the #10-32 nut and torque to 20 in-lbs with a 1/4
wrench, verifying that the specified filter orientation established in the last step has been main-
tained.
7. Use a 3/4 wrench to hold the 14mm adapter fitting at the fuel filter inlet and a 11/16 wrench to
torque the adjacent -6 AN B-nut to 110-130 in-lbs.
8. Use a 15/16 wrench to hold the check valve and an 11/16 wrench to torque the adjacent -6 AN
B-nut to 110-130 in-lbs.
9. Use a 13/16 wrench to hold the union fitting at the fuel pressure relief block and an 11/16 wrench
to torque the -6 AN B-nut to 110-130 in-lbs.
10. Turn on fuel valve, turn on master power, turn key to A position, and check for leaks.
11. Install headliner. (See “Headliner Installation” on page 3-38.)
VERIFICATION METHOD:
Complete engine test run and check for leaks. (See “Engine Test Run” on page 16-7.)
RELATED INFORMATION:
"Remove Fine Fuel Filter" on page 10-30
"Headliner Installation" on page 3-38
"Engine Test Run" on page 16-7