WAH — Boom Lift Operations SWMS
Articulating and telescopic boom lift operations including ground assessment, outrigger setup, and operation.
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This SWMS covers articulating and telescopic boom lift operations on construction, facade maintenance, commercial fit-out, arboriculture, and structural inspection tasks — machine pre-start, ground assessment, outrigger deployment where applicable, platform operation at elevation, and return-to-base sequencing. It is written for boom-lift operators, their dogman and ground spotter, and the Principal Contractor or plant-hire staff authorising the machine. The boom-lift hazard profile is materially different from a scissor lift. Where a scissor lift tips over by exceeding slope or pothole limits, a boom lift ejects an operator by catapult when the boom strikes an overhead object and oscillates. The operator is whipped out of the basket unless arrested by a harness-to-boom lanyard. Where a scissor lift is contained vertically, a boom lift can swing the basket through an arc of 360° and a radius of 20-40 m, putting the operator into contact with structures and overhead services that were never in the vertical stack. The boom-lift SWMS therefore centres on harness-to-boom attachment, overhead line clearance, outrigger ground-bearing, and catapult-ejection prevention — not on tip-over or pothole controls. All work above 2 m triggers HRCW Category 3; operation of a boom with boom length ≥ 11 m triggers the WP High Risk Work Licence requirement under WHS Regulation 2025 r. 309. Section 299 requires this SWMS. CIH-authored against the WHS Regulation 2025 baseline and AS 1418.10 / AS 2550.10.
Hazards identified
11 hazards covered, sorted by priority.
Operator thrown out of basket by boom oscillation after the boom tip contacts a beam, duct, or overhead wire; fatal fall from elevated height unless harness-restrained.
Outrigger pad sinks into recent fill or soft ground during boom extension; entire machine tips with operator at elevation.
Electrocution of operator from basket or boom contact with LV or transmission line; platform becomes live and the operator is the path to ground.
Loss of operator balance and dropped tool incidents when basket swings in gust at 20 m+ reach; manufacturer wind limits commonly 12.5 m/s (45 km/h).
Crush injury to operator pinned between basket edge and building facade during rotation; trapped between boom and obstruction.
Operator stranded at elevation with control fault; requires a second EWP or crane for rescue, typically 30-90 minute delay.
Fall from platform during transfer to adjacent structure; boom lifts are not rated as transit devices per AS 2550.10.
Falling-object injury to ground crew or pedestrians from unretained tools; a hand tool dropped from 20 m reaches terminal velocity for fatal strike.
Structural overload and stability failure; typical basket SWL is 230-300 kg which is exceeded quickly with two operators and a toolkit.
Carbon monoxide poisoning when a diesel boom is operated indoors or in a poorly-ventilated courtyard; fatal CO accumulation within 60-90 minutes.
Unintended boom movement when operator leans against controls; sudden motion causes basket strike or operator loss of balance.
Control measures
Hierarchy-of-controls order: elimination → substitution → isolation → engineering → administrative → PPE.
- 1Harness-to-boom attachment is mandatory throughout platform occupation — AS/NZS 1891.1 full-body harness with a shock-absorbing lanyard clipped to the manufacturer's designated boom anchor, not to the basket guardrail. This single control prevents catapult ejection.
- 2HRWL verification at pre-start — any operator of a boom with boom length ≥ 11 m measured from the turntable holds a current WP High Risk Work Licence per WHS Regulation 2025 r. 309; ticket presented on the SWMS worker sign-on register.
- 3Pre-start inspection per AS 2550.10 — check basket integrity, harness anchor, controls, emergency lower, outrigger extend and retract, boom angle and length sensors, tilt sensor, and tyre/track condition. Signed pre-start sheet filed daily.
- 4Ground-bearing assessment before outrigger deployment — calculate the point-load at each outrigger (typical 8-15 tonnes per pad on a 30 m boom) and confirm the underlying slab or ground can carry the load; timber or composite crane mats used on soft ground and concrete pour where required.
- 5Overhead line mapping before slew — all overhead services within the slew envelope are identified; 3 m exclusion from LV, 6.4 m from transmission per SafeWork NSW; where clearance cannot be maintained, the line is de-energised via the network operator or insulated line cover is fitted.
- 6Wind-speed work stop at manufacturer limit or 45 km/h (whichever is lower); sustained wind monitored continuously by on-site anemometer at maximum boom reach; operator stops extension and returns basket to stowed position before threshold is reached.
- 7Spotter with radio during every slew — ground-level spotter monitors basket trajectory against fixed structures, ground-level personnel, and overhead services; spotter has authority to halt operation.
- 8Tool retention — all tools on the basket tethered to tool lanyards rated for the tool weight; nothing is passed into or out of the basket at elevation except by a rated material hoist.
- 9SWL compliance — combined occupant, tool, and material mass does not exceed basket SWL at any boom configuration; check the load chart for the reach/angle combination before extension.
- 10Platform occupation only — no exit from basket at height to adjacent structure; AS 2550.10 specifies basket is the operator station, not a transit mechanism.
- 11Emergency lower drill — operator demonstrates manual lower and ground-level operator demonstrates auxiliary power descent before first elevation; rescue plan posted on SWMS with trained rescuer named.
- 12Diesel ventilation control — no diesel boom in enclosed or poorly-ventilated area without forced ventilation or mechanical exhaust; CO monitor on the basket where operator is exposed to exhaust drift.
- 13PPE baseline: AS/NZS 1891.1 harness with short shock-absorbing lanyard, safety footwear (AS/NZS 2210.3), long-sleeve high-visibility shirt, Grade II eyewear, and hard hat with chin strap (essential at elevation for basket impact protection).
- 14Ground-level exclusion zone — barricade and signage at the slew radius plus a 2 m buffer; no personnel enters the zone during boom operation without radio clearance from the operator.
- 15Post-shift lock-off — boom stowed in transport configuration, outriggers retracted, ignition keys removed, battery isolator opened, charging lead connected if electric.
Applicable Codes of Practice
Primary binding guidance for boom-lift operation, maintenance, and competency; establishes the outrigger and pre-start regime in this SWMS.
Governs harness-to-boom attachment and catapult-ejection prevention.
Establishes HRCW SWMS duties for boom-lift use in construction.
Applies to overhead line approach distances during boom slew and extension.
Design standard for the boom lift including anchor rating and load chart specification.
Safe-use standard that defines the pre-start inspection, ground assessment, and operator-training regime applied in this SWMS.
Harness and lanyard standard for the boom-anchor attachment.
High-Risk Construction Work triggered
Boom-lift operators routinely work at elevations of 10-40 m; the catapult-ejection risk is a fall-from-height exposure continuous throughout basket occupation.
A boom lift is powered mobile plant under the Plant Code of Practice; its operation at any elevation triggers Category 13 regardless of boom length.
Because boom-lift use triggers HRCW Categories 3 and 13, Section 299 of the WHS Regulation 2025 requires this SWMS before operation. Section 300 maximum penalty for failure is $36,000 for a body corporate and $7,200 for an individual. Operation of a ≥11 m boom by a non-HRWL-licensed operator is an offence under r. 309 with additional penalties. Catapult-ejection fatalities consistently attract Category 1 prosecution under Section 31 of the WHS Act 2011 — 5 years imprisonment and $3.46 million corporate penalty — where the SWMS or the harness-attachment control is missing.
Who this is for
- →WP-licensed boom-lift operators on construction and facade work.
- →Arborists and utility crews operating truck-mounted boom lifts on vegetation and line work.
- →Facade-maintenance and window-cleaning contractors on commercial buildings.
- →Principal Contractors and plant-hire staff authorising boom-lift use.
- →Self-employed operators running their own boom-lift hire operation.
What you receive
- ✓Editable Microsoft Word document (.docx, Word 2016 or newer compatible).
- ✓Title page with PCBU, ABN, site, project, operator WP ticket number, and revision date fields.
- ✓Signed approval block for PCBU, operator, Principal Contractor, and supervisor.
- ✓Hazard register with the 11 boom-lift hazards above, each with inherent risk, controls, and residual risk on a 5x5 matrix.
- ✓Pre-start inspection checklist aligned to AS 2550.10 with 32 check items for articulating and telescopic booms.
- ✓Ground-bearing calculation template with outrigger point-load entries.
- ✓Overhead-line exclusion-zone map template.
- ✓Worker sign-on register and operator-competency evidence page.
- ✓Emergency-lower drill record and rescue plan template.
- ✓Applicable legislation schedule and state-variance table for all jurisdictions.
Worked example
A two-person crew — one WP-ticketed boom-lift operator and one ground spotter — is engaged for a 5-day facade inspection at a 22 m-tall Class 5 office in North Sydney. The machine is a 28 m articulating boom. Before work commences the operator completes this SWMS: the WP ticket is recorded; the pre-start identifies a failed basket-level sensor — the hire company replaces the machine before work commences; outriggers land on the basement-slab-below car park, so a structural engineer's load approval is obtained with crane mats specified; overhead transmission line along the street is mapped with 6.4 m clearance; wind is checked each hour from the basket via handheld anemometer. On day 3 sustained wind reaches 43 km/h at basket height; the operator returns to stow and stands down for 90 minutes. Inspection completes on schedule with no incident.
Related legislation
- Work Health and Safety Act 2011 (NSW) — Section 19 primary duty of care; Section 27 officer due diligence.
- WHS Regulation 2025 (NSW) — r. 203-229 (plant), r. 78-80 (falls), r. 298-300 (SWMS for HRCW), r. 309 (high-risk work licences including WP class).
- Electricity Supply Act 1995 (NSW) — Section 44 approach distances to overhead power lines.
- Road Transport (Heavy Vehicles — Vehicle Standards) Regulation 2014 (NSW) — transport of boom lifts between sites.
- Protection of the Environment Operations Act 1997 (NSW) — diesel-engine emissions compliance.
Frequently asked questions
When does the WP High Risk Work Licence apply?
The WP class HRWL applies under WHS Regulation 2025 r. 309 to any EWP with a boom length of 11 m or more measured from the turntable or slew centre to the basket. Articulating booms are measured along the fully-extended boom sections. Any boom below 11 m does not require an HRWL but still requires documented operator familiarisation and competency.
Why is the harness attached to the boom and not the basket?
During a catapult event the basket may decouple or deform; attaching the harness to the boom anchor (which is designed and rated for fall arrest per AS/NZS 1891.1) provides an anchor that remains with the structural element. The manufacturer's designated boom anchor is the correct attachment point; no other point on the boom or basket is acceptable.
Can a boom lift be used in wind?
Up to the manufacturer's rated wind speed (commonly 12.5 m/s or 45 km/h, whichever is lower) and only with continuous monitoring at basket height. The wind limit reduces as boom length extends; a 30 m boom often has a lower wind limit than a 20 m model. The SWMS requires handheld anemometer readings at basket height every hour during operation.
Is a second person required on the ground?
Yes — a ground-level spotter or operator is required during slew and travel, both for radio communication and for emergency lower in the event of operator incapacitation. Operating with no ground-level person is a lone-worker scenario and is not permitted under this SWMS.
Does this SWMS cover trailer-mounted cherry pickers?
Partially — truck-mounted cherry pickers share many hazards with self-propelled boom lifts and this SWMS is applicable for those platforms. However, the cherry-picker SWMS (wah-cherry-picker) covers the specific scenario of a single operator on a truck-mounted platform with no ground spotter and is the preferred document for arboriculture and road-maintenance scopes.
Document details
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