Problem solving in Industry 4.0 often requires collaboration among remote team members, which face increased complexity on their daily tasks and require mechanisms with adaptive capabilities to share and combine knowledge. Augmented Reality (AR) is one of the most promising solutions, allowing taking advantage from seamless integration of virtual and real-world objects, which can be used to provide a shared understanding of the task and context. In this regard, most research works, so far, have been devoted to explore and evolve the necessary technology. However, it is now important to revisit the subject of remote collaboration in relation with AR to understand how much of the collaborative effort can already be supported and identify gaps that should inform further research. In line with this mindset, we adopted a user-centered approach with partners from the industry sector, including participatory design and a focus group with domain experts to probe how AR could provide solutions to support their collaborative efforts. We focused on using tangible artifacts in the form of storyboards to create a shared understanding with target users in remote collaboration. Afterwards, we identify a set of requirements, which we materialize through the design and creation of a collaborative prototype based on sharing of enhanced AR annotations. Finally, we present and discuss the results from a case study on a maintenance context, which provides interesting insights that can be applied to other remote settings, thus facilitating the digitization of the industry sector.