Maintenance shares significant operating costs in an organisation. It is considered as a main pillar of the organisational
performance. Lean thinking can be incorporated into maintenance activities through applying its principles and practices. Lean
maintenance is a prerequisite for lean manufacturing systems. The exhaustive literature review has been conducted to collect the
up-to-date maintenance strategies and activities, lean principles and practices in the lean maintenance process. The scope of this
paper includes eight types of waste (non-value added maintenance activities), maintenance value stream mapping and a scheme
oflean maintenance practices. The output of this paper is a proposed roadmap to apply lean thinking in a maintenance process.