Maintenance restores and improves equipment performance,
and is an important part of a product life cycle [1]. However,
increasing equipment complexity poses challenges to the engineers
and maintenance technicians nowadays. Several aspects of
maintenance can be supported with advanced information
technologies [2–4]. Augmented reality (AR) technology, which
provides a seamless interface between the real and virtual world,
can be used to enhance maintenance activities [5]. AR technology is
an enabling technology for man–machine–information interaction
that can assist maintenance activities. Using AR, maintenance
information in multi-media forms can be augmented and aligned
virtually in the maintenance area, and collaborative work between
the maintenance technicians and the remote experts and engineers
can be enabled and enhanced through visual interactions. Thus, AR
provides a better approach for providing maintenance information
as compared to paper prints and computers and can potentially
improve the workflow of maintenance activities.