This work aimed to develop an expert fault diagnostic system for the repair and maintenance of
bulldozer work equipment faults. An ExpertSystem, ES is one of the many quick and efficient repairs
and maintenance strategy that can be used on these machines. ES is a C# computer based
programming software that can be adopted to extend the life span of equipments and reduce the
cost of human expert for their repairs. In this work, an expert system was developed as a tool that
will detect, analyse and proffer respective solutions to the bulldozer work equipment faults. A
flowchart (logic chart) was also developed. The flowchart is a logical sequence for characterising and
troubleshooting the causes of bulldozer’s work equipment failure. In this report, the solutions to the
detected faults: low or high hydraulic valve pressure, abnormal noise in the control valve was
documented accordingly. The preferred solutions to the various faults observed were also included
with snapshots from each interface of the developed program in the report. The ES developed can
be adopted in the construction industries for carrying out repair and maintenance of equipment for
optimum performance at a highly reduced cost. This can also be used as a teaching aid in the
department of mechanical and mechatronics engineering and other fields of engineering institute.
This study will enable automobile and maintenance workshops to proffer solutions to maintenance
of bulldozer’s work equipment failure and at the same time avoid costly damage and optimize the
economic objective
