How often should slewing ring bolts be torqued on tower cranes?
Slewing ring bolts should be torqued every 100 operating hours or monthly, whichever comes first, following manufacturer specifications.
Slewing ring bolt torquing is critical for tower crane safety and requires strict adherence to manufacturer-specified intervals. Most manufacturers recommend checking and re-torquing these bolts every 100 operating hours or monthly, whichever occurs first. Initial torquing after installation typically requires verification at 25 hours, then again at 100 hours before establishing the regular maintenance schedule.
Remember: "100 Hours or Monthly First" - whichever checkpoint you reach first, torque those slewing ring bolts!
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