Dycem upgrade is related new things additional in our tool impact H/W and process were changed. I encourage you to revisit safety risk assessment of each additional dycem cleaning tools to identify those things, situations, processes, etc that may cause harm, particularly to operator and then feedback to area owner to decide what actions should be in place to effectively prevent or control the harm from happening.
FYI, attached is BUSD dycem clean risk assessment made by Sornpet, He found that nothing light curtain checking/interrupted for dycem process.