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5T Excavator and Skid Steer Loader Combo On Site Risk Assessment

5T Excavator and Skid Steer Loader Combo On Site Risk Assessment

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5T Excavator and Skid Steer Loader Combo On Site Risk Assessment

Product Overview

Identify and control organisational risks associated with operating a 5T Excavator and Skid Steer Loader combo on site using this management-level Risk Assessment, focused on planning, governance, and systems of work. This document supports executive Due Diligence, aligns with WHS legislative requirements, and helps protect your business from compliance breaches and operational liability.

Risk Categories & Hazards Covered

This document assesses risks and outlines management controls for:

  • Governance & WHS Duties: Assessment of PCBU obligations, officer due diligence, allocation of responsibilities, and oversight of excavation and earthmoving operations involving combined plant.
  • Procurement & Plant Selection: Management of risks associated with hiring, leasing, and selecting 5T excavators and skid steer loaders, including suitability for task, safety features, and supplier assurance.
  • Planning, Site Layout & Traffic Management: Development of site plans, plant interaction zones, exclusion areas, spotter arrangements, and traffic management systems for multiple mobile plant operating concurrently.
  • Competency, Licensing & Training Systems: Verification of high-risk work licences, VOC processes, familiarisation training, and ongoing competency management for operators and spotters.
  • Safe Systems of Work, Procedures & Permits: Implementation of documented procedures, work permits, authorisation processes, and supervision arrangements for excavation, loading, trenching, and material handling.
  • Maintenance, Inspection & Pre‑Start Systems: Scheduling and control of servicing, defect reporting, pre‑start checks, and isolation/lock‑out for the excavator and skid steer fleet.
  • Site Induction, Consultation & Communication: Protocols for site-specific inductions, toolbox talks, consultation with workers, and communication systems between operators, ground crew, and other contractors.
  • Underground & Overhead Services Management: Identification, locating and protection of utilities, including Dial Before You Dig processes, permits, and controls for working near powerlines and buried services.
  • Environmental & Ground Conditions Management: Assessment of ground stability, gradients, soft spots, weather impacts, dust, noise, and environmental protection requirements for excavation activities.
  • Contractor & Supplier Management: Prequalification, selection, and monitoring of plant hire companies, subcontractors, and service providers to ensure compliance with WHS and plant safety standards.
  • Fatigue, Hours of Work & Fitness for Duty: Systems for managing shift length, breaks, fatigue risks, impairment (including drugs and alcohol), and fitness for duty of plant operators.
  • Emergency Preparedness & Incident Management: Planning for rollovers, collisions, ground collapse, service strikes, and other emergencies, including rescue arrangements, first aid, and escalation procedures.
  • Documentation, Recordkeeping & Compliance Assurance: Control of risk assessments, inductions, training records, maintenance logs, permits, audits, and review processes to demonstrate ongoing WHS compliance.

Who is this for?

This Risk Assessment is designed for Business Owners, Construction Managers, Site Supervisors, and Safety Professionals responsible for planning, approving, and overseeing 5T Excavator and Skid Steer Loader combo operations on site.

Hazards & Risks Covered

Hazard Risk Description
1. Governance, WHS Duties and PCBU Oversight
  • • Lack of clear allocation of WHS duties between PCBU, principal contractor, subcontractors and plant hire company for the excavator and skid steer combo
  • • Inadequate WHS management plan for sites where plant is operating alongside other trades
  • • Failure to consult, cooperate and coordinate activities between multiple PCBUs (builder, plant hire, traffic management, utilities)
  • • No formal process for monitoring compliance with WHS Act 2011 and WHS Regulation 2011 in relation to mobile plant
  • • Inadequate resourcing (time, money, competent people) for safe management of plant operations
  • • Poor safety culture and production pressure overriding safe systems of work
2. Procurement, Hire and Selection of Plant
  • • Hiring or purchasing excavators and skid steers that are not fit for purpose or not suited to the specific site conditions (ground conditions, gradients, space constraints)
  • • Plant supplied without required safety features (ROPS, FOPS, emergency stops, reversing alarms, seat belts, slew restriction, quick hitch safety systems)
  • • Lack of documented compliance with Australian Standards and manufacturer specifications
  • • No formal pre‑acceptance inspection process before plant is brought to site
  • • Use of non‑genuine or incompatible attachments (buckets, augers, hammers) that compromise stability or integrity
  • • Inadequate verification that plant has up‑to‑date registration (where required) and design / item registration where applicable
3. Planning, Site Layout and Traffic Management Systems
  • • Poorly planned site layout leading to interaction between plant, pedestrians and other vehicles
  • • No formal traffic management plan for mixed plant use (excavator and skid steer working concurrently) on constrained construction sites
  • • Uncontrolled reversal and slewing movements in areas with limited visibility
  • • Inadequate planning for public interface (footpaths, roadways, neighbouring properties)
  • • Changes to site conditions (staging, materials storage, temporary works) not reflected in updated traffic management arrangements
  • • Insufficient planning for loading/unloading and float movements of the combo to and from site
4. Competency, Licensing and Training Systems
  • • Operators of the excavator and skid steer not holding the required high‑risk work licences or competencies (where applicable under jurisdictional requirements)
  • • Inadequate verification of operator experience, especially for tight access, sloping ground or complex excavation tasks
  • • Lack of structured familiarisation training on specific make/model and control layouts for each hired machine
  • • Spotters, doggers, supervisors and general workers unaware of plant hazards, exclusion zones and communication protocols
  • • No formal process for assessing and recording competency, refresher training or remedial training following incidents or near misses
5. Safe Systems of Work, Procedures and Permits
  • • Absence of a documented Safe Work Procedure (SWP) or similar system for managing combined excavator and skid steer operations on site
  • • Work commencing without a formal risk assessment for specific site conditions (underground services, overhead powerlines, adjacent structures, traffic)
  • • Inconsistent application of exclusion zones, spotters, and communication rules across different sites and crews
  • • High‑risk activities (e.g. excavation near services, working at the edge of embankments, lifting with excavator) conducted without an appropriate permit or engineering review
  • • Non‑standard or unsafe practices becoming normalised due to lack of procedural guidance and supervision
6. Maintenance, Inspection and Pre‑Start Systems
  • • Lack of systematic maintenance regime for excavator, skid steer and attachments leading to mechanical failures on site
  • • Pre‑start inspections not being carried out, or being completed superficially without management oversight
  • • Defects not reported, recorded or rectified in a timely manner, resulting in continued use of unsafe plant
  • • Maintenance records incomplete or not available on site for verification by the PCBU or regulator
  • • Use of plant that has exceeded service intervals, has known fluid leaks, or compromised safety systems (e.g. faulty alarms, damaged ROPS, non‑functional emergency stops)
7. Site Induction, Consultation and Communication
  • • Workers and subcontractors starting on site without understanding plant movements, exclusion zones or no‑go areas
  • • Language barriers or low literacy leading to misinterpretation of instructions, signage or signals
  • • No structured forum for workers and operators to raise plant‑related safety concerns or improvement ideas
  • • Poor communication between excavator and skid steer operators when working in close proximity
  • • Temporary workers, delivery drivers and visitors not being informed of plant hazards on site
8. Underground and Overhead Services Management
  • • Inadequate identification and management of underground services (gas, electricity, water, sewer, communications) prior to excavation
  • • Failure to consult Dial Before You Dig / Before You Dig services and asset owners before using the excavator or skid steer for trenching or footings
  • • Overhead power lines or other services within the operating envelope of the excavator boom or raised skid steer attachments
  • • Inaccurate or outdated service plans leading to false assumptions about service locations
  • • Lack of a formal permit or authorisation process for excavation near critical infrastructure
9. Environmental and Ground Conditions Management
  • • Unassessed ground conditions (soft spots, voids, fill, underground structures) compromising stability of excavator or skid steer
  • • Slope, edges of excavations and embankments not assessed for capacity to support plant loads
  • • Weather events (heavy rain, high winds, heat) altering ground conditions or visibility and increasing the risk of overturning or collision
  • • No systematic process for checking and controlling entry to work areas potentially affected by contamination, acid sulphate soils or unstable materials
10. Contractor and Supplier Management
  • • Use of plant operators supplied by hire companies or subcontractors whose WHS standards and competencies are not verified
  • • Inconsistent safety expectations and procedures between principal contractor and subcontractors operating or working near plant
  • • Lack of monitoring of subcontractor compliance with WHS obligations in relation to plant (e.g. documentation, inductions, supervision)
  • • Commercial pressure on subcontractors leading to shortcuts around exclusion zones, spotters or maintenance
11. Fatigue, Hours of Work and Fitness for Duty
  • • Operators working excessive hours or multiple sites leading to fatigue and reduced reaction time when operating plant
  • • No system for assessing or managing drug and alcohol risks among operators and spotters
  • • Medical or physical conditions affecting operator ability (vision, hearing, mobility) not being disclosed or assessed
  • • Shift work, night work or remote work not supported by appropriate fatigue management controls
12. Emergency Preparedness and Incident Management
  • • Lack of planning for foreseeable emergencies involving plant, such as rollovers, entrapment, collision with persons or structures, or service strikes
  • • Workers unsure how to respond if a person is struck or pinned by the excavator or skid steer, or if plant contacts live electricity
  • • Delayed emergency response due to unclear communication channels, site access constraints or inaccurate location information
  • • Incidents and near misses involving plant not being reported, investigated or used to drive improvement
13. Documentation, Recordkeeping and Compliance Assurance
  • • Critical WHS documentation for plant (risk assessments, inspection records, licences, TMPs) not being controlled, current or readily available on site
  • • Inability to demonstrate compliance with WHS Act 2011, WHS Regulation 2011 and Codes of Practice during regulatory inspections or following incidents
  • • Inconsistent recordkeeping between different projects, making trend analysis and continuous improvement difficult
  • • Loss of documentation when using paper‑based systems or multiple disconnected platforms

Need to add specific hazards for your workplace?

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Legislation & References

This document was researched and developed to align with:

  • Work Health and Safety Act 2011
  • Work Health and Safety Regulations 2017
  • Model Code of Practice – Construction Work: Guidance on managing WHS risks in construction, including excavation and use of mobile plant.
  • Model Code of Practice – Managing Risks of Plant in the Workplace: Requirements for selection, use, inspection, and maintenance of plant.
  • Model Code of Practice – Excavation Work: Risk controls for excavation, trenches, ground conditions, and underground services.
  • AS/NZS ISO 31000:2018: Risk management — Guidelines for establishing a systematic risk management framework.
  • AS 2550 series: Cranes, hoists and winches – Safe use (referenced for general lifting and load handling principles where applicable).
  • AS 4024.1 series: Safety of machinery – General principles for risk assessment and risk reduction.
  • AS 4801 / ISO 45001: Occupational health and safety management systems – Requirements for systematic WHS management and continual improvement.
Standard Risk Assessment Features (Click to Expand)
  • Comprehensive hazard identification for all activities
  • Risk rating matrix with likelihood and consequence analysis
  • Existing control measures evaluation
  • Residual risk assessment after controls
  • Hierarchy of controls recommendations
  • Action priority rankings
  • Review and monitoring requirements
  • Consultation and communication records
  • Legal compliance references
  • Sign-off and approval sections

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