Over the years there have been many fires on mobile mining equipment. In fact, a study by the Queensland Department of Mines and Energy over a 12 month period showed that of 228 fires reported in this period 71% were on mobile mining equipment.
Additionally, the insurance industry data shows that for hydraulic excavators at least once every 7 years a fire capable of causing "whole of machine" loss can be expected.
The studies mentioned above have also identified that failure of fundamental maintenance practices are responsible for the majority of these fires. On many mines across the world the Deloitte Specialist Asset Team have also identified failed maintenance practices that have, or could lead to fires on mobile equipment. In all of these cases the failures were due to one or more of the following:
The Deloitte Asset team believes that the quality of inspections generally reflect the level of importance placed on the "quality of PM inspections" by the maintenance and site management team. We also believe that, in a similar manner to structural defects, there is a need for priorities to be placed on defects in areas that can lead to fire.
This conclusion is also supported by the data from the Queensland Department of Mines and Energy which has identified Engines, Electrical, Wheel Bearings and Brakes as the top 3 critical areas. Defects in these areas should have a higher criticality and machines should not return to work without these being reviewed by at least an additional technician.
Data sources from:
In order to do more to support sites and our clients to avoid these fires we have produced this downloadable document summarising our approach to managing these risks and our processes to stop fires on mobile mining equipment. The intent of the document is to provide experienced based guidance or examples of methods to manage the four elements required to prevent mobile equipment fires. These four elements are: