Earthmoving Equipment Safe Work Method Statement

Earthmoving equipment operators require high-risk work licence class CV (Concrete Placing and Vibrating) if operating excavators or loaders exceeding 5 tonnes. This licence class covers tracked and wheeled excavators, front-end loaders, backhoes, and skid-steer loaders above the weight threshold. Equipment under 5 tonnes does not require HRWL but operators must be trained and assessed as competent by employer. The CV licence requires completion of nationally recognised training through registered training organisation, practical assessment demonstrating competency, and successful knowledge test. Licences remain valid for 5 years requiring renewal before expiry. Operators must carry licence when operating equipment and produce for inspection if requested by workplace health and safety inspectors. Additional licences required for specific equipment include LF (Forklift) for rough terrain forklifts, and separate truck driving licences for operating equipment on public roads. Employers must verify licence validity before allowing operators to use equipment, maintaining register of operator licences and expiry dates. Operating earthmoving equipment without appropriate licence constitutes serious breach of WHS regulations exposing both operator and employer to prosecution and substantial penalties.

Safe operating angles depend on multiple factors and must be determined carefully for each machine and working condition. Start by reviewing equipment operator manual which specifies maximum safe operating angles for specific machine model - these typically range from 15 degrees for wheel loaders with elevated loads to 30 degrees for tracked dozers. Manufacturer specifications assume firm level ground - reduce permissible angles by 25-50% when ground is wet, loose, or uneven. Measure actual slope angles using inclinometer or digital level rather than estimating visually as slopes appear less steep than actual angle. Consider equipment configuration - excavators with loaded buckets slewed to side have reduced stability compared to bucket in front. Account for ground conditions - soft ground reduces stability requiring flatter operating angles. Slopes parallel to machine travel direction (working up/downhill) are more stable than side slopes (working across slope). For excavators on batters, position tracks perpendicular to slope (not parallel) maximising stability during slewing. Monitor ground conditions continuously - rain can change stable slope to unstable within hours. Establish maximum safe work boundaries marking with physical markers visible to operators. Brief operators specifically on slope limits for conditions present. If uncertain about slope safety, err on conservative side using reduced angles or alternative methods. Implement backup measures including spotter observation when working near slope limits. Never allow production pressure to override slope safety - rollovers cause fatalities and are almost always foreseeable and preventable.

Hydraulic fluid spray from high-pressure leak creates immediate injection injury and fire hazards requiring urgent response. If you observe hydraulic spray: evacuate immediate area and prevent others from approaching as spray can inject through skin causing severe tissue damage. Shut down equipment immediately turning off engine to depressurise hydraulic system - do not attempt to slow or minimise leak by blocking or containing. Move away from equipment at least 10 metres in case spraying fluid ignites on hot engine components. Alert other personnel to evacuate area using radio or verbal warning. Contact supervisor reporting hydraulic failure and requesting maintenance attendance. Do not attempt temporary repairs using tape, clamps, or rags as these do not safely contain pressure. Tag equipment with 'DO NOT OPERATE' tag preventing restart before repairs completed. If hydraulic fluid has sprayed onto yourself or others: seek medical attention immediately even if no pain present - hydraulic injection injuries require emergency treatment within hours to prevent amputation. Do not massage or apply pressure to injection site as this spreads contamination. Alert medical personnel that this is hydraulic injection injury requiring specialist treatment not general wound care. For equipment repairs: only qualified mechanics should repair high-pressure hydraulic systems. Mechanics must fully depressurise system before disconnecting any components. Replace damaged hoses entirely - never attempt repairs using joiners or sleeves. Use hydraulic hoses meeting or exceeding original equipment specifications. After repairs, test system under controlled conditions checking for additional leaks before returning equipment to service.

Safe distances from excavation edges depend on excavation depth, soil type, equipment weight, and ground conditions. General engineering principle: equipment must be set back distance at least equal to excavation depth - for 5 metre deep excavation, maintain 5 metre setback from edge. This prevents ground failure beneath equipment causing rollover into excavation. WHS regulations require edge protection or other controls preventing falls into excavations exceeding 2 metres depth. For earthmoving equipment specifically: excavators under 20 tonnes should maintain minimum 2 metre setback from unsupported edges in stable ground, increasing to 3 metres for larger equipment. Double these distances in weak soils, ground affected by groundwater, or recently placed fill. Equipment operators must know excavation edge locations - establish physical markers (bunting, delineators, or GPS boundaries) making edges clearly visible from operator position. Conduct daily inspections of excavation edges checking for tension cracks indicating ground movement - if cracks appear parallel to edge within setback distance, this indicates imminent failure requiring immediate evacuation and geotechnical assessment. Ground near edges weakens over time from vibration, weather, and stress redistribution - increase setback distances for excavations open more than one week. Prohibit material stockpiling within 3 metres of edges as this creates surcharge loading potentially triggering collapse. Where equipment must work at edges (loading out of excavations), engage geotechnical engineer to design edge support systems including soil nails, sheet piling, or soldier piles allowing safe edge approach. Never allow production pressure to reduce safe setback distances - edge failures cause equipment losses and fatalities.

Noise exposure regulations require controls when noise exceeds 85 dB(A) averaged over 8-hour shift. Earthmoving equipment typically generates 75-90 dB(A) at operator position in enclosed cab, 85-100 dB(A) for ground workers near equipment. Daily noise dose calculation accounts for both level and duration - exposure to 85 dB for 8 hours equals same dose as 88 dB for 4 hours. Hearing protection mandatory when noise exceeds 85 dB - verify through noise assessment measuring at operator and ground worker positions. Operators in enclosed cabs may not require hearing protection if noise below 85 dB and cab well sealed. Ground workers within 50 metres of operating earthmoving equipment typically require Class 4 or 5 hearing protection. Impulse noise from hydraulic hammers exceeds 120 dB requiring highest-level protection. Whole-body vibration exposure action value is 0.5 m/s² averaged over 8 hours, exposure limit value is 1.0 m/s². Track equipment on rough ground generates 0.5-1.0 m/s² vibration at operator seat. Control vibration through: selecting equipment with air-suspension seats meeting ISO 2631 standards, maintaining work surfaces smooth through regular grading, enforcing regular breaks (15 minutes every 2 hours for high-vibration equipment), implementing job rotation limiting individual exposure time. Operators should adjust seat suspension for their weight ensuring effective vibration isolation. Monitor operator health through annual medical assessments checking for hearing loss or musculoskeletal disorders indicating excessive exposure. Document noise and vibration assessments, retain records demonstrating compliance with exposure limits and control implementation.