Crane, Hoist and Lift Operators
Operate stationary and mobile cranes, hoists, lifts and winches to lift, move and place materials, equipment and people in areas such as building sites, factories, mines, sawmills and shipyards.
A windy morning in the tower crane
You are a tower crane operator on a tall apartment building site, working alone in the cab high above the street. It is 6:45am and the first concrete truck is due at seven. The site is full of people, the wind has started to pick up, and every lift today depends on how you read the conditions.
Choose what you would do. Then see what happens. There are often good reasons for each choice.
The wind is up a touch, but I need this formwork panel on the fifth floor before the concrete arrives. It is a big flat panel, I know, but you have lifted it before. Can you just give it a go?
Lift it slowly and carefully, since you have done it before and the delay would be costly
A big flat panel catches the wind like a sail. Halfway up it swings sharply, and you have to bring it back down fast. Nobody is hurt, but it is a scare, and the crew below scatter.
Check the wind reading against the crane's limit, tell Ruth the result and lift only if you are inside it
The gusts are just over the limit for that panel. You tell Ruth, and she reorders the day to start with smaller loads while the wind drops. The concrete is poured an hour later, but nobody is put at risk.
Offer to lift smaller bundles of materials first while you watch the wind, and say nothing about the panel
The smaller loads go up safely, but Ruth thinks the panel is still coming and keeps the concrete truck waiting. Telling her plainly would have helped her plan.
Heads up, you have a bundle of steel over the yard and a labourer has cut across to fetch a tool. He is walking right under the path of your load and he has not looked up. I cannot reach him in time.
Sound the horn and keep the load moving, so it clears the area as quickly as possible
The horn startles him and he runs, but a load that keeps moving is still a danger. He is safe, but you were not in control of the situation.
Stop the movement, hold the load steady, call out on the radio and wait until he is clear
The load stops, you call a halt on the radio, and the foreman shouts him clear. It costs a minute. The cab is a long way up, so the radio and your own stopping are what protect people below.
Keep going, because the load is high above his head and he will be through before it arrives
A load swings, slips or sways in ways that are hard to predict. He makes it through, but you knew nothing about how safe you were, and the foreman has words with you at lunch.
I have hooked the beam. Give me the signal to lift when you are ready. I am doing the hand signals the way my last boss did them, which I think are the same as yours, but I am not sure. Is that okay?
Go ahead and watch his hands closely, since most signals look alike
He makes a signal you read as 'lower', but he meant 'hold'. The beam drops a short way before he shouts. The mistake is small, but it was avoidable.
Ask him to stay on the radio and agree each signal with you before you lift
It works for the lift, and Zane relaxes. But it is slow, and you could have asked the foreman to check his signals first so the day moves faster.
Stop and run through the signals together first, and ask the foreman to check his work
You find two signals that mean different things in each of your jobs. After a short practice, you both agree on the same set. A few minutes at the start saves a day of guessing.
How it went
The day finished with every lift done within the limits and everyone on the ground walking home. Crane operators rely on judgement, patience and good communication far more than strength. Do you think you would enjoy being the calm voice in the sky?
This is a simplified, fictional situation to help you explore. It is not professional instruction or a test of your ability.
Case study: The wall panel with no weight on it
A fictional case set in a city building site with a tower crane, and a yard where mobile cranes are hired out.
The situation
Kelly operated a mobile crane on a townhouse site in Merrin Bay. A truck arrived with a precast wall panel that had been loaded in a hurry, and the label with its weight had been scraped off in transit. The site foreman said it was the same size as the last panel and would weigh about the same. The crane was set up, the truck was blocking the street, and the crew was ready to go.
What they did
Kelly told the foreman that she could not lift a load she did not know the weight of. She rang the supplier's office and asked for the figure from the delivery sheet. While she waited, the foreman was clearly frustrated, but she explained that the crane has a safe limit that changes with how far the load is reached. The supplier called back, and she checked the number against her chart before lifting.
How it turned out
The panel was heavier than the last one by a margin that would have mattered at that reach. Kelly moved the crane closer to the wall and lifted safely. The delay was about twenty minutes. The foreman later asked suppliers to mark every panel with a weight that cannot rub off.
What would you do?
- Would you have felt comfortable refusing a lift while a whole crew waited?
- Why do you think the same-looking load could weigh a different amount?
- What would you say to the foreman to keep the relationship friendly?