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XT 582 Maintenance Manual
Issue 1.0
September 21st 2005
Page 56
Replacement of the Fuel Sender Device
If the fuel sender device is being replaced then the correct installation of the flow range jet is important.
Incorrect installation will cause the unit to malfunction. The jet must be fully inserted in the inlet port,
with the smaller diameter end toward the inside. Push it to the inner end with a flat ended rod and tap
gently to ensure it is fully seated.
Included is a photograph of a flat ended rod used for installation, the meter, and vernier callipers, the
reading for a correctly seated flow range jet is 23.5mm.
Figure 29 Fuel Sender and tools
Fuel Safety Cut-off Valve
The final component prior to the engine, is the fuel safety cut-off valve which is used both during
transportation, and during any fuel or fire emergency to starve the engine of its fuel supply.
Maintenance:
Handle
Make sure that the valves actuating handle is secure.
Flow Checks
Should there be any doubts about the fuel supply to the engine, i.e. a lack of power at any RPM range,
then the Safety Cut Off Valve (as well as all other fuel line components) should be checked to ensure
that they allow the free flow of fuel. At least one side of the valve should be disconnected and the valve
visually inspected in both the open and closed positions. When the valve is open it should be large
enough that it will in no way restrict the flow of the fuel. When installed the valve should be closed to
starve the engine of fuel to ensure that the valve closes fully – perform this test while on the ground
only.
Stiff Operation
Should the valve become stiff to operate it may be dismantled and cleaned as required, however
should there be any damage or wear evident, it should be replaced.
CAUTION
MAKE SURE THAT IF THE SAFETY VALVE IS REMOVED IT IS REINSTALLED TO COMPLY
WITH THE OPEN AND CLOSED POSITIONS OF THE PLACARD.