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IC.5.7.1 Fuel lines must be securely attached to the vehicle and/or engine.
IC.5.7.2 All fuel lines must be shielded from possible rotating equipment failure or collision damage. IC.5.7.3 Plastic fuel lines between the fuel tank and the engine (supply and return) are prohibited. IC.5.7.4 Any rubber fuel line or hose used must meet the following:
a. The components over which the hose is clamped must have annular bulb or barbed fittings to retain the hose
b. Clamps specifically designed for fuel lines must be used.
These clamps have three features: a full 360° wrap, a nut and bolt system for tightening, and rolled edges to prevent the clamp cutting into the hose
IC.5.7.5 Worm gear type hose clamps must not be used on any fuel line.