The 360-degree excavator is one of the most commonly used machines on UK construction sites. It is versatile and powerful but has significant blind spots around the cab, particularly to the rear and nearside. Pedestrian strikes during slewing, contact with overhead power lines, and striking buried services are all common and frequently fatal incidents. Only CPCS or NPORS certified operators should be at the controls, and strict plant-pedestrian segregation must be maintained at all times.
Key Hazards
Pedestrian strikes during slewing from blind spots around the cab
Contact with overhead power lines from the boom or dipper arm
Striking buried services including gas mains and live electricity cables
Machine overturn on soft, sloping, or uneven ground near excavation edges
Control Measures
Ensure the operator holds a current CPCS or NPORS card for the excavator category.
Carry out a thorough pre-use inspection of the machine including all safety devices and mirrors.
Establish exclusion zones around the excavator and prohibit pedestrian access during operation.
Use a trained banksman to control all pedestrian and vehicle movements in the machine's work area.
Check for overhead power lines and maintain the safe clearance distance before starting work.
Scan for buried services using CAT and Genny and review service plans before excavating.
Position the machine on firm, level ground away from excavation edges and unstable slopes.
Slew slowly and check mirrors and cameras before every movement of the superstructure.
Shut down the machine and engage the slew brake before leaving the cab for any reason.
Remember
360-degree excavators have significant blind spots — never approach without the operator's signal.
Slewing is the most dangerous movement because the operator may not see pedestrians to the rear.
Always check for overhead lines and buried services before starting excavation at any new location.
The machine must be on firm, level ground and positioned safely away from excavation edges.
Only CPCS or NPORS certified operators may operate the excavator on a construction site.
If you need to approach the machine, wait until the operator acknowledges you and stops all movement.
Applicable Legislation: PUWER 1998 · CDM Regulations 2015 · Health and Safety at Work etc. Act 1974 · HSG144 (Safe Use of Vehicles on Construction Sites)