Equipment Manager
The user will be able to manage equipments.
Users are allowed to access their own maintenance requests
['|', ('message_partner_ids', 'in', [user.partner_id.id]), ('technician_user_id.id', '=', user.id)]
Users are allowed to access equipments they follow
[('message_partner_ids', 'in', [user.partner_id.id])]
Administrator of maintenance requests
[(1, '=', 1)]
Equipments administrator
[(1, '=', 1)]