Impco Repair Manuals

SERVICE TECHNICIANS AND USERS should carefully read and abide by the provisions set forth in National Fire Protection Association pamphlet #37 for stationary engines, #52 for CNG vehicular fuel systems or #58 for LPG systems.
INSTALLERS LPG installations in the United States must be done in accordance with federal, state and local laws and National Fire Protection Association pamphlet #58, Standard for Storage and Handling of Liquefied Petroleum Gases, to the extent these standards are not in violation of federal, state or local law.
COUNTRIES OUTSIDE OF USA refer to the governing agencies overseeing CNG and propane applications.
CNG INSTALLATIONS IN THE UNITED STATES must be done in accordance with federal, state and local law and National Fire Protection Association pamphlet #52, compressed natural gas (CNG) vehicular fuel systems, to the extent these standards are not in violation of federal, state or local law.
LPG AND/OR NATURAL GAS INSTALLATIONS ON STATIONARY ENGINES must be done in accordance with federal, state and local law and national fire protection association pamphlet #37, Stationary Combustion Engines and Gas Turbine Engines, to the extent these standards are not in violation with federal, state or local law.
Failure to abide by the above will void any IMPCO warranty on the products and may cause serious injury or property damage.
SERVICE TECHNICIANS due to the inherent danger of gaseous fuels, IMPCO products should not be installed or used by persons not knowledgeable of the hazards associated with the use of gaseous fuels.  Any maintenance, service or repair should be performed by trained and experienced service technicians.
PROPER TOOLS AND EQUIPMENT proper tools and equipment should be used to prevent injury to the servicing technician, property or system components. Service repairs should always be performed in a safe environment and the technician should always wear protective clothing to prevent injury.  
INSPECT BEFORE USE always inspect the major casting pieces for damage, corrosion or cracks before attempting a service repair. Be sure the repair kit part number you are using is correct for the component(s) being serviced.  
NO TEFLON TAPE do not use Teflon tape to seal any fuel fittings. Failure to follow this warning may cause the regulator to leak internally, possibly resulting in serious injury, death and/or property damage and may void any warranty coverage.