8.5 PRINCIPLES FOR THE SELECTION OF TROLLEYSContents8.5.1 SWL8.5.2 Separate Trolley and Hoist or Combined Hoist8.5.3 Hand pushed or Geared Trolley8.5.4 Wheel Bearings8.5.5 Curved Runway Beams8.5.6 Beam Width Adjustment8.5.7 Temporary Applications8.5.8 Wheel Tread Profile8.5.9 Documentation8.5.10 Stops