I have the self erecting tower crane licence as well as the tower crane licence and from memory the questions in the written exam were mostly identical. The practical test is also pretty much the same consisting of doing the safety checks, identifying crane parts and doing a few lifts with the crane.
So why the different high risk work license?
Good question, back around 2006 WorkCover introduced the self erecting tower crane tower crane ticket, abbreviated on the high risk license as CS. There was a 12 month transition period where people with a tower crane high risk licence (CT) could continue to operate a self erecting tower crane but after that period they would need the CS license.
But why the need for a separate ticket?
Yeah I'm not sure of the logic behind it by WorkCover.
They added the CS to their range of licences but not to long after got rid of the excavator, bobcat, backhoe, dragline and a few other high risk license classes.
Hope that explains everything for you :)
The longer the jib on a hammerhead tower crane the more time will be required to start moving the jib and slow it down.
Also the further the distance between the jib and hook the more delay between when the trolley moves and the hook block moves / reacts.
These factors as well as difference in slew and hoist motor size, number of slew motors, jib and tower rigidness / flex will cause variances on how the crane operates.
Tower cranes have the same controls but some adjustments to driving style are needed when operating cranes of different sizes, models and brands. Generally the smaller the crane the more responsive and thus easier to operate... but not always.
This time right now in regards to finding work as a tower crane operator in Sydney, Australia has never been better. There are as of March 2016, 288 tower cranes in greater Sydney. If you are a tower crane operator or dogman and cannot get work you should just change careers because it will never be this easy to get employed.
Builders are having difficulty acquiring certain types of tower cranes, having to wait for them to become available or use a different more available brand or model.
However there are some clouds on the horizon. Crack downs by the Chinese government on money laundering and money leaving their country has put a stop to a lot of money flowing into new unit purchases. The Australian government (due to Chinese government pressure) has started to enforce foreign investment rules on real estate purchases instead of turning a blind eye and reaping the taxes as they have done previously. The big banks have already started to stop or reduce lending to foreigners for real estate.
I have observed on projects I am working on off the plan sales (pre construction sales) are falling with units now unsold at project completion. Not long ago I would see first hand units for an entire project selling out within a few hours of being put up for sale, before the first stages of construction even began.
Taxes being bought in on superannuation is inevitable. Both parties of government in Australia have announced they intend to do it after the election this year. This will hit property investment by diminish returns for investors who hold property in self managed super funds.
Regulation changes by the government have changed this financial year. Banks are required to hold a higher proportion of reserves to what they lend for home mortgages. This means banks will either need to find more depositors so they can lend or make less loans on their existing deposit holdings.
These factors aside there is an unnaturally high amount of construction going on, 288 tower cranes for Sydney, wow. In October 2014 RLB (the company that publishes that 'crane index') wrote an article called 'Skyline full of cranes' the number of tower cranes was 324 cranes... across the whole of Australia, with 119 in Sydney, and if you remember 2014 wasn't a bad time, no recession, construction was strong, no trouble getting work.
Even if construction doesn't crash but goes back to the average levels before the boom it will mean a lot of tower crane operators out of work (to fill the demand a lot of people have got work as crane operators and dogmen, when it falls back... these people have to go) and they will be either unemployed or working in jobs they performed before becoming crane operators.
Unlike other trades that constantly have work doing maintenance, renovations, extensions etc. the tower crane operator is dependant on new construction.
As for me when the work dries up I'm going to play golf... a lot of golf...
Ill have plenty of time
1. There is no need for a concrete pad for the base of the crane to anchor to, this will save at least $25,000 but often much more as the concrete pad is not cheap.
2. No having to wait for concrete to reach the required strength / MPA before installing the tower crane. The crane can be installed the same day as the base, cutting out lead time of up to 28 days.
3. The static base can even be installed on top of existing buildings, as is often done for refurbishments (shopping centre upgrades, changing offices or motel/hotel to private units.
This is where the static base really saves builders and their customers money as it not only eliminates the need for a concrete pad but it also eliminates the need for tower sections to be installed, which can cost $30,000 per 4m high section on larger cranes.
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