Loadshifting Machinery Operators
This domain covers the safe and productive operation of loadshifting machinery - excavators, loaders, bulldozers and backhoes - on Hong Kong construction sites. The CIC exam tests your knowledge of the Factories and Industrial Undertakings (Loadshifting Machinery) Regulation (Cap. 59I), daily inspection, stability and capacity limits, site communication, and the practical judgement expected of a registered operator.
Legal and competency limits
- Only trained, competent operators may operate loadshifting machinery; the machine must be maintained and examined, and defects reported and isolated.
- Operate only the machine class you are certified for, and follow the site safety plan, permit-to-work and traffic management plan.
Daily inspection and start-up
- Walk-around checks: tracks or tyres, fluid leaks, hydraulic hoses, pins and bucket teeth, ROPS/FOPS, seat belt, horn, reversing alarm, camera and fire extinguisher.
- Confirm the load chart and attachment rating before lifting; test controls, travel brakes, swing brake and interlocks in an open area.
Stability, capacity and load control
- Capacity falls as radius and boom length increase; deduct attachment, bucket and rigging weight from the chart figure.
- Check ground bearing: use mats or outriggers, keep away from edges, trenches and underground services.
- Keep loads low and within the machine footprint; never travel with a raised load or allow persons under or on the load.
- Use a competent signaler and agreed hand or radio signals; stop if a signal is unclear.
Worked example
You are using a 20 t excavator with a lifting hook to place a 1.1 t precast cover. The load chart gives 2.0 t at 5.0 m radius and 1.4 t at 6.0 m. Rigging weighs 0.1 t, so the lifted load is 1.2 t. At 5.0 m the margin is 0.8 t, acceptable; at 6.0 m the margin is only 0.2 t, too small once swing and ground conditions are considered. Reason: reposition the machine so the lift stays inside 5.0 m radius, use a spotter, and use the lower rating if the hook attachment reduces capacity.
Traps that cost marks
- Quoting nominal machine capacity without checking radius, attachment and rigging.
- Skipping the walk-around or recording a defect as minor and continuing to work.
- Allowing a worker to ride in the bucket or on the machine.
- Working near overhead power lines without isolation or goalposts.
- Travelling with a raised bucket or load on a slope.
- Giving signals yourself or accepting signals from an unauthorized person.