UKMHA issues cold start warning

News Story
- 24 Nov 2022 ( #1104 ) - Berkshire, United Kingdom
1 min read
UKMHA warns of sticking valve
UKMHA warns of sticking valve

UK Material Handling Association is warning against excessive cranking over of the engine and repeated starting attempts for LPG forklifts. 

This follows recent reports of cold starting issues on LPG trucks in Britain.

David Goss, UKMHA technical director, explains: “Investigations into the root cause are ongoing, but some instances have been identified where there is a build-up of deposits in the evaporator (pressure regulator), flow regulator or shut-off valve. 

“The concern is that sticking valves could lead to a mixture which is too rich and therefore cannot be ignited. If there are then repeated starting attempts, this can lead to a release of a high unburned concentration of LPG which, in extreme cases, could present a risk of fire. 

“LPG is heavier than air, so it does not naturally disperse and will accumulate in enclosed spaces and low-lying areas where it can easily be ignited by an ignition source, such as sparks, electrical arc or a hot surface.

Goss’ advice, if the engine of an LPG truck does not start within the normal few seconds, is not to continue to crank the engine over nor repeat the normal starting sequence. “Instead, you should secure the truck, ventilate the immediate area and contact your supplier to get the truck checked out,” he says.

UKMHA has issued a Safety Alert which gives advice to operators on what to do, and what not to do, if experiencing difficulty starting an LPG truck engine. It also offers guidance to service and maintenance engineers on how to safely deal with an LPG truck which has a reported starting issue.

This latest Safety Alert is available to download now from the UKMHA website.

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