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Fuel
Systems
Manufacturer Requirements
FEDERAL LAW
183.558 - Hoses and connections
(d) The inside diameter of a hose must
not exceed the actual minor outside diameter of the
connecting spud, pipe, or fitting by more than the distance
shown in Table 8.
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TABLE
8
This requirement does not apply to a tube used
to detect fuel pump diaphragm failure.
To assure a leakproof hose connection, certain
permitted hose to spud clearances have been established. Figure
26 depicts these clearances as applied to some spuds, pipes
or fittings.
FIGURE
26 - Hose Connections
TO COMPLY WITH THE LAW
- The inside diameter of the hose is
not larger than the minor diameter of the connecting
fitting in accordance with the permitted clearance
allowed in Table 8 of 183.558(d).
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