HSE is aware of a number of fires on, and around, liquefied petroleum gas (LPG) powered forklift trucks and other similar vehicles that have occurred during starting.
Outline of the problem
Build-up of deposits in fuel systems, in particular, the vaporiser units of LPG powered vehicles has led to a number of fires.
Trucks not starting due to sticking valves
Deposits in vaporiser units, flow regulators and shut off valves cause the truck to fail to start, particularly from cold. Build-up of deposits can lead to sticking valves and the mixture supplied to the engine being too rich to be ignited.
Repeated starting attempts can release unburned LPG
Repeated starting attempts can result in the release of unburned LPG, which in extreme cases can be ignited, setting fire to the vehicle and surrounding materials.
Action required by operators
If a truck does not start within the normal few seconds
Service and maintenance engineers
If you are presented with an LPG powered truck with a starting problem:
LPG is cold, take appropriate precautions when working with it. Once released LP gas is heavier than air and can pool in low lying areas, where it can be ignited by any source of ignition, including static electricity, electrical sparks and hot surfaces.
More information on forklift truck LP Gas systems can be found here Disclaimer: he legislative information contained on this web site is my interpretation of the law based on many years in the health and safety business. A definitive interpretation can only be given by the courts. I will therefore not be held responsible for any accident/incident/prosecution arising as a consequence of anyone using any information obtained from this web site.
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