JLG 340AJ Articulating Boom Lift (EWP)
Jett Australia needed independent proof that its JLG 340AJ boom-type elevating work platform was structurally sound, correctly load tested and compliant. Cossack Inspections carried out a full major inspection to AS 2550.10 and AS 1418.10 and issued a five-year certificate.
Plant Details
Proving a Boom Lift Is Safe at Height
A boom lift puts people at height, so any weakness in the boom structure, slew gear, hydraulics or controls is a serious risk. Under Regulation 213 of the Work Health and Safety Regulation 2022, a major inspection by a competent person is required at intervals set by the manufacturer or the relevant standards.
The inspection started on 6 November 2025 and was finalised on 4 March 2026. It covered the structure, mechanical and hydraulic systems, safety devices and a measured load test.
Scope of Work
- Records check: maintenance, logbook and operations manual
- Boom structure, knuckle boom, jib and main frame
- Turntable, slew gear and mechanical components
- Hydraulic system, rams, seals and hoses
- Steering, brakes, wheel bearings and outriggers
- Basket controls, deadman switch and emergency stops
- Load test using a water bag and a NATA-approved load cell
The Inspection Checklist
Each item below was rated on the AS 2550.10 and AS 1418.10 checklist: 15 items rated OK, 4 fitted items confirmed and 10 not applicable to this machine type.
Structure
Boom structure and jib, main frame structure, turntable.
RATED OKHydraulics
Hydraulic system, rams, seals and hoses.
RATED OKDrive & Steering
Steering, brakes, wheel bearings and outriggers.
RATED OKMechanical & Power
Mechanical components, power source, lifting gear and cleanliness.
RATED OKWarning & Lighting
Warning devices, lights and indicators.
RATED OKSigns & Identification
Load chart, control identification, SWL signs and electrical hazard sign.
FITTEDMeasured, Not Assumed
The basket was load tested using an approved water bag and a NATA-approved load cell, so the test weight is traceable and accurate.
| Maximum Load (MRC) | Measured Test Load | Method | Standard |
|---|---|---|---|
| 230 kg | 247 kg | Approved water bag with load cell | AS 1418.1 & AS 1418.10 |
Inspection Gallery
Photos captured on site during the inspection. Click any image to enlarge.
Certificate of Major Inspection
On completion, the competent person signed a Certificate of Major Inspection. A major inspection compliance plate showing the inspection date and next major inspection due date was fixed to the machine, alongside the annual green sticker.
The inspection was performed in accordance with Regulation 213 of the WHS Regulation 2022, AS 1418.10, AS 2550.10 and the manufacturer's specification.
- Certificate No.
- COSS JA M 239-11/25 EWP
- Inspection Started
- 6 November 2025
- Issued
- 4 March 2026
- Next Major Due
- 4 March 2031
- Plant
- Boom Lift EWP, JLG 340AJ
- Serial No.
- 0300230834
- Competent Person
- Dibyendu Das, MEng (Mech), MIEAust
- Supervisor
- Ken Hodges
- Inspection Body
- Cossack Inspections (NATA / Engineers Australia)
Documented, Tested and Certified
Condition Recorded
General condition rated satisfactory, with no major defects identified at the time of inspection.
Load Verified
Basket tested at 247 kg against the 230 kg maximum load.
Visible Compliance
Compliance plate and green sticker fixed to the machine.
Clear Next Steps
Service and log all repairs, schedule annual inspections, and re-inspect all mechanisms at the next major inspection.
Need Your Boom Lift Inspected?
Talk to our competent persons about annual and major inspections for boom lifts, scissor lifts, cranes and concrete pumps.
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