UL 558-2020 pdf free download.Industrial Trucks, Internal Combustion Engine-Powered. 9.2 The exhaust system shall conform with the test requirements of the Exhaust System Test, Section 25. 9.3 A muffler, catalytic converter, diesel particulate filter, or other after-treatment device, shall be provided on each truck. 10 Fuel Systems — Gasoline and Diesel 10.1 Tanks and pumps 10.1.1 A fuel tank shall be constructed of painted mild steel having a minimum thickness of 0.032 inch (0.81 mm) or material equivalent in strength. rigidity, and resistance to fire and corrosion. The joints shall be welded, brazed, soldered, or bonded, If soldered or bonded, the joints shall be of a construction that will retain the heads if the solder or bonding melts. Fittings and fill pipe, if soldered or bonded, shall be mechanically secured to the tank in addition to soldering or bonding. 10.1.2 A fuel tank shall not be located directly over the engine. If a tank is within or contiguous to the engine compartment, the tank or fill arrangement, or both, shall be isolated from the electrical and exhaust systems by a separate enclosure or by baffles. The tank location and the facilities for filling shall be such that spillage or leakage will drain to the ground and not into the engine compartment or onto electrical- or exhaust-system parts. 10.1.3 A fuel tank and fill fitting shall be so located as to minimize the possibility ol damage to the tank or its fittings. 10.1.4 A shut-off valve shall be provided in an accessible location near the tank on gravity-feed systems or on systems where the fuel in the tank is subject to discharge by siphon action if the fuel line breaks. 10.2 Fuel lines, tubing, and fittings 10.2.1 Metallic fuel lines, except those used in a high-pressure injection system, shall be of seamless annealed copper or steel tubing. Flexible tubing. hose, or a vibration loop shall be used where necessary to absorb vibration. Flexible tubing or hose shall be of the length necessary to span between the fixed and moving parts. 10.2.2 Nonmetallic fuel tubing or hoses shall be provided with appropriate traceability to validate conformance with the Standard for Nonmetallic Fuel System Tubing with One or More Layers, SAE J2260 or the Standard for Fuel and Oil Hoses, SAE J30. 10.2.3 Fuel system assemblies (eg. each fuel line and fitting configuration) shall be provided with appropriate traceability to validate conformance with...
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