Track Loader Operation SWMS
Operation of track-mounted loader for soft / boggy ground or slope work. Includes ground stability check, traction control, slope angle limits, pre-start inspection.
SWMS variants reference your state’s WHS legislation. Instant download after payment.
Track loader operation on soft, boggy, or sloped ground is one of the highest-consequence earthmoving activities on Australian construction and civil sites. The combination of a heavy tracked machine, variable ground bearing capacity, and gradient introduces rollover, bogging, and crush risks that have historically driven a significant share of mobile plant fatalities investigated by Safe Work Australia. This SWMS addresses operation of track-mounted loaders where ground stability cannot be assumed — including saturated fill, reclaimed land, batters, and embankment shaping. Under WHS Regulation 2025 section 291, work involving powered mobile plant and work on or adjacent to unstable surfaces is classified as High Risk Construction Work, which mandates a documented SWMS prepared in consultation with workers before the activity commences. The document covers pre-start inspection, ground assessment, slope angle limits per manufacturer data, traction and track tension control, exclusion zones, and emergency egress. It must be reviewed at each shift change and whenever ground or weather conditions shift materially.
Hazards identified
7 hazards covered, sorted by priority.
Operator crush injury or fatality from cabin intrusion despite ROPS; entrapment delays emergency extraction significantly
Machine slides into excavation, watercourse, or struck-by event injuring ground workers below the operating zone
Snatch strap or chain failure during recovery causes whip injury, fatality, or strikes nearby plant and personnel
Sudden ground failure pitches machine into void; operator sustains spinal, crush, or drowning injuries depending on excavation contents
Pedestrian worker crushed by bucket, counterweight, or track during loader repositioning; commonly fatal at close range
Electrical contact arc-flash, gas ignition, or fibre damage causing burns, explosion, or notifiable critical infrastructure outage
Delayed reaction to ground change or pedestrian incursion leading to mobile plant collision or rollover incident
Control measures
Hierarchy-of-controls order: elimination → substitution → isolation → engineering → administrative → PPE.
- 1Elimination — Reschedule track loader work on saturated batters until ground moisture drops below the geotechnical threshold confirmed by site engineer's bearing capacity assessment.
- 2Elimination — Remove pedestrian workers entirely from the operating zone by sequencing tasks so ground crew and plant never share the active earthmoving cell.
- 3Substitution — Where slope exceeds 20 degrees or manufacturer rating, substitute long-reach excavator working from stable bench instead of tracking the loader across the face.
- 4Engineering — Verify ROPS/FOPS certification current, seatbelt interlock functional, and reverse camera plus proximity alarm operating before each shift per AS 2294 requirements.
- 5Engineering — Construct engineered haul roads and turning pads with imported crushed rock to provide consistent bearing surface and eliminate soft-spot bogging risk.
- 6Engineering — Install physical exclusion barriers, witches hats, and bunting at a minimum 1.5x machine working radius to prevent pedestrian incursion.
- 7Administrative — Conduct documented ground stability assessment and slope measurement with inclinometer at start of shift and after any rainfall event exceeding 10mm.
- 8Administrative — Operator holds current HRW licence class and verified competency on track loader; spotter deployed for all reversing and slope work via two-way radio.
- 9Administrative — Implement positive communication protocol so no person approaches the machine until operator acknowledges, lowers bucket to ground, and applies park brake.
- 10PPE — High-visibility day/night compliant clothing to AS/NZS 4602.1, safety helmet, steel-cap boots, hearing protection in cabin, and seatbelt worn continuously during operation.
Applicable Codes of Practice
Specifies pre-operational inspection, ROPS/FOPS requirements, and isolation duties directly applicable to track loader operation on variable terrain.
Defines rollover and falling object protective structure performance requirements that the loader must meet for slope and unstable ground work.
Triggers edge-protection, batter stability, and exclusion zone clauses when track loader operates adjacent to or within excavations greater than 1.5 metres.
Imposes specific PCBU duty to manage rollover, falling object, and pedestrian interaction risks for mobile plant including documented control measures.
High-Risk Construction Work triggered
Ground crew, surveyors, and supervisors operate in the same zone as the loader, triggering the pedestrian-plant interaction criterion under section 291.
Earthworks on reclaimed, landfill, or industrial brownfield ground may disturb contaminated soils or generate flammable vapours requiring HRCW classification.
PCBU must prepare, consult workers on, and retain the SWMS for the duration of the work plus two years post-incident; penalties for non-compliance are substantial and indexed, with the current maximum following the prevailing WHS penalty schedule.
Who this is for
- →Civil contractors on bulk earthworks and subdivision projects
- →Plant operators holding HRW licences on mining-adjacent civil works
- →Site supervisors managing batter shaping and embankment construction
- →Principal contractors coordinating multi-plant earthmoving sequences
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 regional highway widening project, the day-shift supervisor opens the Track Loader Operation SWMS at the 6:30am pre-start meeting alongside the operator and two ground crew. Overnight rainfall of 14mm has saturated the southern batter scheduled for trimming. Working through the hazards register, the team identifies the lateral rollover and traction loss controls as critical for today. The SWMS prompts the supervisor to deploy the inclinometer — the batter measures 22 degrees cross-slope, exceeding the manufacturer's 18-degree limit for the loader. Applying the substitution control listed in the document, the supervisor reschedules batter trim to the 14-tonne excavator working from the bench above, and redirects the loader to stockpile shaping on the engineered pad. All three workers sign on to the SWMS, noting the deviation from planned sequence and the substitution rationale. Mid-morning, light rain resumes and the operator notices track slip on the pad approach. Per the administrative control requiring reassessment after weather change, work pauses, the supervisor re-inspects the surface, and additional crushed rock is spotted on the soft area before resumption. The signed SWMS, ground assessment notes, and substitution decision are filed in the site daily diary, providing the contemporaneous evidence chain the principal contractor requires under WHS Regulation 2025 record-keeping duties.
Related legislation
- WHS Act 2011 (model)
- WHS Regulation 2025
- AS 2550 — Cranes, hoists and winches; AS 1418 series
Frequently asked questions
Is track loader work on batters and soft ground high risk construction work?
Yes. A track loader is powered mobile plant, and operating it where surveyors, supervisors and ground crew share the earthmoving cell is high risk construction work under WHS Regulation section 291(o). Tracking parallel to an excavation or embankment crest deeper than 1.5 m adds section 291(g), and working reclaimed land, landfill or brownfield where contaminated soils or flammable vapours may be disturbed adds section 291(l). Section 299 requires the SWMS before the activity starts, and section 300 requires review — here that means at every shift change and whenever ground or weather conditions shift materially.
How does the SWMS decide whether a slope is safe to track?
By measurement against the machine's rated stability angle, not by judgement from the cab. Cross-slope is taken with an inclinometer at the start of shift and again after any rainfall above 10 mm, and the reading is compared with the manufacturer's stated limit. In the worked example a saturated southern batter reads 22 degrees against an 18-degree rating, so the documented substitution applies: the batter trim moves to a long-reach excavator working from the stable bench above and the loader is redirected to stockpile shaping on the engineered pad. Saturated batters also stay closed until moisture drops below the engineer's bearing capacity threshold.
What does it say about bogging and machine recovery?
The strategy is to prevent the bog rather than improvise the recovery, because a failed snatch strap or chain whipping back has killed people who were not involved in the original incident. Engineered haul roads and turning pads built with imported crushed rock give a consistent bearing surface and remove the soft spots that trap a tracked machine, and when the operator reports track slip on an approach the work pauses and more rock is spotted before resumption. Where recovery is unavoidable it is planned as its own task with its own exclusion zone, not attempted on the spot with whatever rigging is on the truck.
How are ground workers kept clear of the machine?
First by sequencing, so ground crew and plant never occupy the active earthmoving cell at the same time. Where that is not achievable, physical exclusion barriers, witches hats and bunting are set at a minimum of 1.5 times the machine's working radius, and a spotter with a two-way radio is deployed for all reversing and slope work. Approach is governed by a positive communication protocol: nobody walks toward the loader until the operator has acknowledged them, lowered the bucket to the ground and applied the park brake. Operator competency is verified on the specific machine, not assumed from general earthmoving experience.
What do I receive, and what makes it hold up in an audit?
You receive an editable Word document, bought once, with the hazard register and risk ratings, hierarchy-of-control mapping, a state-specific legislation schedule for NSW, VIC, QLD, SA, WA, TAS, NT and the ACT, a worker sign-on register, pre-start checklist and incident escalation flow. What makes it defensible is the record it accumulates: the inclinometer readings, the ground stability assessment, the rationale when a planned sequence is substituted, and every worker's signature against the amended plan. Filed with the site daily diary, that becomes the contemporaneous evidence chain a principal contractor will ask for.
Document details
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