be68bdaa_tion_in_New_Zealand___Worksafe_le_3__Power_tools_hazard_table_Possible_consequences
[Hazard] Excessive noise [Safe work practices] Hearing protection should be worn when working around and with tools that create excessive noise. Regularly maintain machinery and equipment and keep components well oiled. Change old or loose parts, vibrating mounts, silencers, etc. [Possible consequences] 
Hearing damage
Demolition - Best practice guidelines for demolition in New Zealand | Worksafe
Possible consequences