Cranes in Winter
Once the first snow falls, work on the job site gradually comes to a halt. Construction equipment is rarely or seldom put into operation and becomes covered in frost and snow. Nevertheless, a few precautions need to be taken on the job site once winter arrives. There are also essential things to keep in mind when operating a crane as temperatures approach freezing.
We'll explain what you can do to winterize your crane and when you should shut down your job site.
Cranes in Winter – What to watch for before operation
Machines on the job site can sustain damage in sub-zero temperatures and heavy snow, and they can also become hazardous. That's why you should be aware that snow can accumulate on the rope pulleys in winter. The rope can not only slip out but in the worst case even tear – all staff should be mindful of this.
1. Check the brakes
The brakes on a crane can freeze overnight and are no longer functional. Be sure to check this and perform an operational inspection every morning without fail!
2. Water can enter the crane transmission
Keep in mind that the transmission and other components heat up once you operate the crane. If there's a thick layer of snow on the crane, it will melt. The result: water that can cause damage to motors, connectors, or control cabinets.
3. Snow on the boom
If there's a lot of snow on the boom, first attach a light load and let the trolley run along the entire boom – the load helps remove the snow from the boom. Continue this as needed until the boom is largely clear of snow.
Also worth reading: Winter maintenance: Getting through snow and ice with the right equipment
Cranes in Winter – Shutting down
There are also a few things to keep in mind when shutting down. These tips will help you avoid freezing or damage to your crane:
- Make sure you don't park the trolley and hook block in the limit switches – this can cause problems when restarting because the trolley and hook block can freeze.
- Close the cabin window and keep the cabin heating running at a reduced level.
- Don't leave items like remote controls, batteries and the like in the cabin; instead store them in a dry location.
Snow on job sites – why it becomes a hazard
For earthwork and concrete work, the temperature limit is minus five degrees Celsius. Beyond this point, it becomes difficult for people and machines to work safely. Additional energy sources would also require more budget. That's why it's important: snow on job sites must be properly cleared if necessary, and salt or sand must be spread to ensure work can proceed safely. Important elements on the job site can be covered by snow and become a tripping hazard. If there's a risk of slipping, the job site is no longer safe to enter for people and machines, so proper work clothing – such as slip-resistant shoes – is essential. Slushy snow can also become hazardous: falling icicles from cranes or snow accumulation can strike workers, and water can also seep into motors and cause crane failures.
