ALTERNATIVE FUEL SYSTEMS, INC.

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 Technical Support

 

  You can rely on AFS for answers to all your gaseous fuel system technical questions. We have been designing and troubleshooting fuel systems for all the OEM lift truck manufacturers for over 50 years. You may contact Bill Alt or Rick Prisk with any problems you are experiencing with a conversion from gasoline to an alternative fuel. Bill has over 40 years experience, and Rick has close to 30. We have seen nearly every problem that can arise, and already have the solutions to correct the problems.

 You may download universal installation and adjustment instructions that will be useful for any conversion. If you have a truck that is not running as it should, our service and troubleshooting manual will guide you through not only the carburetion system, but all systems that effect how the carburetion system performs. For typical maintenance of LP systems, please refer to the following chart.

TYPICAL MAINTENANCE SCHEDULE FOR LPG FUELED INDUSTRIAL TRUCKS AND ENGINES

  CONVERSION DATE 250 HOURS 500 HOURS 750 HOURS 1000 HOURS 1500 HOURS 2000 HOURS
CARBURETOR SECTION
Adjust fuel mixture @ engine idle. (Refer to adjustment instructions) X   X   X   X
Adjust fuel mixture while engine is fully loaded. (Refer to adjustment instructions) X   X   X X X
Check Air / Gas valve     X   X   X
Replace Air / Gas valve assembly     X   X   X
Service Aircleaner   X X X X X X
Check for leaks in filter system   X X X X X X
Check internal parts of carburetor for Dirt / Contamination   X X X X X X
Check for vacuum leaks throughout complete air intake system and adapters X   X   X   X
Check gas orifice for wear     X   X X X
REGULATOR (CONVERTER) SECTION
Inspect secondary diaphragm     X   X X X
Test secondary pressures (See Test Equipment)     X   X X X
Test primary pressures (See Test Equipment)     X   X X X
Rebuild regulator     X   X   X
LOCKOFF SECTION
Replace filter     X   X X X
Rebuild filterlock     X   X   X
GENERAL MAINTENANCE
Check all vacuum hoses, fittings, and connections. Replace as necessary. X X X X X X X
Check all fuel hoses, fittings, and connections. Replace as necessary. X X X X X X X

2000 Hours = Approximately 1 Year based on 250 working days per year and 8 working hours per day.

 If you have a converter or filterlock that you suspect is defective, our warranty test procedure for model J and VFF30  will show you how to test these components before replacing them unnecessarily. These are the same tests we perform on every component that is returned for warranty. If the component passes these tests, they will function properly in a fuel system. Something that should be noted is that over half of all returned converters and filterlocks are functional and not covered under warranty. These simple tests will prevent the expense of replacing good parts

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 If you do run into a problem that is not easily diagnosed, please feel free to call us at 847-437-2350, or submit the following form.

 Troubleshooting Assistance Request

Company Name:

Contact Name:

Phone: (Include Area Code)

E-Mail Address:

Engine Make:  Engine Model: LP Carburetion Manufacturer:

New Conversion Previously installed

If previously installed, how long ago:    Weeks Months Years

Description of problem:

Actions taken to diagnose problem:

Drawing or Technical Data Request

Company Name:

Contact:                                                   

Phone: (Include Area Code) 

E-Mail

Please enter the part number and type of information you require

Part Number Information required *Drawing Specification Sheet

If drawing is requested, format required AutoCad PDF

*Drawings showing proprietary information cannot be supplied.