Van's Aircraft RV 12iS, Maintenance Manual

Page: 158 / 222

Rev: 2 Date: 11/15/18
13-14
7. Remove safety wire from end of filter and thread the end of the filter out of the
filter body.
8. Inspect / clean the filter and interior of filter body.
9. Reassemble the filter and install safety wire.
10. Reinstall Pre-filter in reverse order of removal.
11. Double check that all lines are properly tightened and then move the fuel selector
control to the ‘ON’ position and check for leaks at all fittings.
M
AIN FUEL FILTER REPLACEMENT
(iS)
•
NOTE: The fuel filter should be replaced in the time interval prescribed in the
Service Schedule Checklist or any time the fuel pressure is operating above the
normal operating range.
Special Tools Protective Gloves
Pipe thread sealant
Expendable NA
Replaceable NA
Service Rating Line
Minimum Certification LSA-RM or A&P
Additional References KAI
1. Move the fuel selector control to the ‘OFF’ position.
2. Place towels beneath the Main Fuel Filter.
■ CAUTION: T
URN OFF THE ELECTRIC FUEL PUMP IMMEDIATELY WHEN A CHANGE IN
SOUND IS HEARD
, (
THE LOUDER
/
HIGHER FREQUENCY SOUND INDICATES THE FUEL PUMP
IS NO LONGER PUMPING FUEL
) DO NOT ALLOW THE FUEL PUMP TO OPERATE
WITHOUT FUEL OR PERMANENT DAMAGE MAY OCCUR.
3. With a helper inserting a fuel sample tube into the fuel drain, run each fuel pump
momentarily to clear some of the fuel from the pump manifold.
Do not continue running the pumps after the sound pitch changes. (Indicating
they have run dry)
4. Disconnect the F-12127D Fuel Line from the outboard banjo fitting located at the
outlet side of the Fuel Filter, and if available seal the fitting with a cap to prevent
fuel spillage.
■ W
ARNING
: E
XPECT SOME FUEL DRAINAGE TO OCCUR AS THE LINE CONNECTIONS ARE
REMOVED
. U
SE PROTECTIVE GLOVES AND HAVE SHOP RAGS CLOSE BY
.