Operator’s Manual for Crawler Crane
3.2.14 Establishing the prohibited zone ...................................................................... 3-23
3.2.15 Electromagnetic influences .............................................................................. 3-24
3.2.16 Endangering the environment .......................................................................... 3-25
3.3 Rigging ........................................................................................................................... 3-26
3.3.1 Rigging introduction ............................................................................................ 3-26
3.3.2 Rigging hardware ............................................................................................... 3-26
3.3.3 Hooks ................................................................................................................. 3-26
3.4 Slings .............................................................................................................................. 3-28
3.4.1 Slings introduction .............................................................................................. 3-28
3.4.2 Sling identification tags ....................................................................................... 3-28
3.5 Chain Hitches ................................................................................................................. 3-29
3.5.1 Sling hitches ....................................................................................................... 3-29
3.5.2 Angle of choke .................................................................................................... 3-30
3.5.3 D/d ratio .............................................................................................................. 3-30
3.5.4 Load angle factor ................................................................................................ 3-31
3.5.5 Load share .......................................................................................................... 3-32
3.5.6 Load angle factor chart ....................................................................................... 3-32
3.5.7 Sling safety ......................................................................................................... 3-33
3.5.8 Sling safety guide ............................................................................................... 3-34
3.5.9 Taglines .............................................................................................................. 3-34
3.5.10 Load center of gravity ....................................................................................... 3-35
3.5.11 Sling hook up center of gravity ......................................................................... 3-35
3.5.12 Estimating weights ............................................................................................ 3-36
3.6 Ground conditions .......................................................................................................... 3-37
3.6.1 Bearing pressure ................................................................................................ 3-37
3.7 Snow and ice .................................................................................................................. 3-38
3.8 Lightning strikes .............................................................................................................. 3-39
3.9 Overhead power lines ..................................................................................................... 3-40
3.10 Underground cables ..................................................................................................... 3-49
3.11 Crane operation with a load .......................................................................................... 3-54
3.11.1 Counterweight ................................................................................................... 3-54
3.11.2 Travel without a load ......................................................................................... 3-55
3.11.3 Travel with a load .............................................................................................. 3-56
3.11.4 Requirements when transferring from the horizontal to the incline .................. 3-59
3.11.5 Crane operation  ........................................................................................... 3-61
3.12 Hand signals for controlling crane operations .............................................................. 3-78
V
To Next Page
Loading...
Need help?
General
