applying appropriate mathematical procedures to estimate loads applying best mobile practice including: carrying load near to the ground surface (where practical) gently accelerating and braking (to minimise load swing) minimum boom/jib radius minimum speed using handheld taglines applying hazard prevention/control measures including: adequate illumination disconnected power insulated electric lines moving obstructions pedestrian barricades personal protective equipment safety tags on electrical switches/isolators using safety observer inside exclusion zone traffic barricades and control trench covers applying risk assessment and hazard control strategies, including hierarchy of control as applied to positioning and safely operating a crane applying risk assessment and management procedures communicating with other workplace personnel through: appropriate worksite protocols bells buzzers listening making and interpreting hand signals questioning to confirm understanding signage two-way radios verbal and non-verbal language whistles written instructions complying with WHS/OHS licensing legislation loading data into crane computer as required and checking operation to accurately reflect crane configuration operating a portal boom crane including all functions to their maximum for lifting and moving loads to the safe working rated capacity while applying relevant crane movements including: hoisting luffing mobiling slewing receiving and interpreting workplace instructions, safety information, emergency procedures recording and maintaining accurate information relating to crane operations shutting down a portal boom crane in accordance with manufacturer specifications and workplace procedures including: applying motion locks and brakes are applied applying weathervane mode as required idling engine to stabilise temperature locking and securing cabin as required raising boom/jib to clear buildings, structures and vessels as required removing key from ignition retracting hoist rope and hook block turning off engine test-lifting load just clear of lifting plane to ensure: adjustments to slinging can be made in a safe manner all crane equipment is functioning properly load measuring equipment can be used to verify calculated weight of load loads of unusual shape or weight distribution are correctly slung near capacity loads do not overload crane using and interpreting crane manufacturer specifications and data, including load charts to enable crane to be configured for load using communications signals including: stop – hand stop – whistle hoist up – hand hoist up – whistle hoist down – hand hoist down – whistle luff boom down – hand luff boom down – whistle luff boom up – hand luff boom up – whistle slew left – hand slew left – whistle slew right – hand slew right – whistle mobile – hand verifying problems and equipment faults, and applying appropriate response procedures to unplanned and/or unsafe situations including: environmental conditions (e.g. wind, lightning, storms, etc.) failure/loss of control (e.g. brakes and steering) failure of equipment (e.g. hydraulic system) obstacles and obstructions unusual or difficult terrains. |