Plate Compactor & Wacker Packer Operations SWMS
Plate compactor (wacker packer) and vibratory compactor operations — subgrade and sub-base compaction in civil and landscaping works. HAVS, foot injury, fuel handling, and exhaust emission controls.
SWMS variants reference your state’s WHS legislation. Instant download after payment.
Plate compactor and wacker packer operations are routine on civil, drainage, paving and landscaping sites for compacting subgrade, sub-base, trench backfill and paver bedding. Despite the equipment's small footprint, these tasks expose operators to hand-arm vibration well above the AS/NZS ISO 5349:2013 daily exposure action value, sustained noise above 85 dB(A), petrol/diesel exhaust accumulation in trenches, and serious foot crush risk from a machine that can weigh 80–200 kg and walk unpredictably on slopes. WHS Regulation 2025 Part 4.5 (Plant) and the corresponding Hazardous Manual Tasks and Noise provisions impose a duty on the PCBU to identify these risks, apply the hierarchy of control, and document the safe system of work before the task starts. A SWMS is mandatory where the work meets High Risk Construction Work criteria — including work near energised services, in trenches, or where plant interacts with workers on foot — and must be developed in consultation with operators under s47–48.
Hazards identified
7 hazards covered, sorted by priority.
Progressive HAVS causing irreversible vascular and neurological damage to fingers, loss of grip and dexterity, compensable injury
Metatarsal fractures, degloving injuries, permanent impairment requiring surgical fixation and extended time off work
Acute CO poisoning, loss of consciousness, asphyxiation in poorly ventilated excavations below ground level
Noise-induced hearing loss, tinnitus, permanent threshold shift, compensable occupational disease under WHS Regulation
Class B fuel fire, burns to operator hands and face, environmental contamination requiring spill notification
Plant damage, struck-by injury to workers below, secondary trench collapse if compactor lands on shoring
Respirable crystalline silica exposure, long-term silicosis risk, breach of workplace exposure standard 0.05 mg/m³
Control measures
Hierarchy-of-controls order: elimination → substitution → isolation → engineering → administrative → PPE.
- 1Elimination — Where practicable specify self-compacting fill (controlled low-strength material) or design out compaction in confined trenches by using flowable backfill per AS 3798.
- 2Elimination — Eliminate operator presence in deep narrow trenches by using remote-controlled trench rollers or excavator-mounted compaction wheels for backfill below 1.5 m.
- 3Substitution — Substitute petrol units with low-vibration diesel or battery-electric compactors rated below 2.5 m/s² declared vibration to remove exhaust hazard and reduce HAVS exposure.
- 4Substitution — Substitute heavier plates with reversible vibratory rollers on larger pads to reduce passes, total trigger time and cumulative A(8) vibration dose per operator.
- 5Engineering — Fit anti-vibration handle isolators, maintain dampers per manufacturer schedule, and use manufacturer-supplied exhaust extensions directing fumes away from operator breathing zone.
- 6Engineering — Provide forced mechanical ventilation in trenches deeper than 1.2 m with continuous CO monitoring and alarm set at 30 ppm per AS 2865 confined space principles.
- 7Administrative — Rotate operators on 30-minute task cycles tracked on the SWMS sign-on sheet to keep daily vibration dose below the AS/NZS ISO 5349:2013 action value.
- 8Administrative — Conduct pre-start inspection covering throttle, deadman, handle isolators, fuel lines and exhaust; isolate and tag out any unit failing inspection per WHS Reg s213.
- 9PPE — Issue Class 5 SLC80 earmuffs or dual hearing protection above 100 dB(A), AS/NZS 2210.3 safety boots with steel midsole and metatarsal guard, and P2 respirator when compacting dry granular fill.
- 10PPE — Provide impact-resistant anti-vibration gloves compliant with AS/NZS 2161.3, high-visibility long sleeves, and safety eyewear to AS/NZS 1337.1 against ejected stone.
Applicable Codes of Practice
Imposes PCBU duty to manage risks from powered mobile plant including pre-start inspection, operator competency, and isolation of damaged plant under r203–214.
Defines A(8) calculation method and 2.5 m/s² daily exposure action value used to set rotation schedules and trigger health surveillance under r368.
Sets LAeq,8h 85 dB(A) and LC,peak 140 dB(C) exposure standards requiring engineering controls, audiometric testing and signed hearing protection zones.
Specifies compaction lift thickness, moisture conditioning and testing frequency that govern pass count and therefore operator trigger time exposure.
High-Risk Construction Work triggered
Compacting trench backfill or pit floors below 1.5 m creates exhaust accumulation conditions meeting the atmospheric hazard limb of the confined space definition.
Sub-base compaction routinely occurs over electrical, gas and telecommunications conduits where plate impact can damage shallow services identified during DBYD scans.
Edge-of-slab and footing compaction adjacent to tilt panel braces or precast footings requires controlled approach distances to avoid disturbing temporary supports.
PCBU must prepare, consult workers on, and retain the SWMS for two years post-incident under r299; failure attracts Category 1–3 offences with penalties substantial and indexed annually under the prevailing WHS schedule.
Who this is for
- →Civil contractors on subdivision and road works
- →Landscapers laying pavers and retaining wall footings
- →Plumbing crews backfilling sewer and stormwater trenches
- →Council maintenance teams reinstating utility excavations
What you receive
- ✓Editable DOCX template — Microsoft Word compatible
- ✓State-specific WHS legislation schedule (NSW/VIC/QLD/SA/WA/TAS/NT/ACT)
- ✓Hazard register with risk ratings + hierarchy-of-control mapping
- ✓Worker sign-on register, pre-start checklist, and incident escalation flow
Worked example
On a suburban stormwater upgrade, a leading hand opens the pre-start brief at the trench using the Plate Compactor SWMS as the talking document. The crew is backfilling a 1.8 m deep trench in 300 mm lifts over a new 375 mm RCP. Reading the hazard register, the leading hand identifies three live risks: CO accumulation (trench depth >1.5 m), HAVS on the 120 kg petrol wacker, and foot crush on the sloped trench edge. He selects the SWMS-listed controls — switching to the yard's battery-electric reversible plate, setting a 30-minute operator rotation between two competent workers tracked on the sign-on sheet, and positioning a portable axial fan at the trench mouth. Each operator signs onto the SWMS acknowledging the rotation schedule and confirming metatarsal-guard boots are worn. Mid-task, a third lift produces visible dust because the imported sand is drier than specified; the operator stops, the leading hand returns to the SWMS dust control line, and the crew water-conditions the lift with a hand lance before resuming. At smoko, the SWMS rotation log shows one operator approaching 90 minutes cumulative trigger time, so he is reassigned to spotting while the other completes the final lift, keeping both workers below the AS/NZS ISO 5349 action value for the shift.
Related legislation
- WHS Act 2011 (model)
- WHS Regulation 2025
- AS 2294 — Earth-moving machinery; Plant safety CoP