5. FUEL SYSTEM                                                     MXU 500 IRS
                                                    Float          Float Tang

 Check the float and float tang for
 deformation or damage.




 Check the float valve and valve seat for
 foreign substance, clogging or damage.
 Check the tip of the float valve, where it
 contacts the valve seat, for stepped wear or
 contamination.
 Check the operation of the float valve.




                                                                   Piston Valve


 Check the piston valve for scratches, wear
 and damage.

 Check the rubber diaphragm for tears.




                                                Rubber Diaphragm



                                                                                  5-14