V
3.4 Requirements for operating site ................................................................................. 3-28
3.4.1 Slopes and trenches.......................................................................................3-28
3.4.2 Permissible ground pressure..........................................................................3-29
3.4.3 Travel on level ground or slope without a load................................................ 3-30
3.4.4 Travel on level ground or slope with a load.....................................................3-30
3.4.5 The requirements for crawler crane with attachments on uphill slopes ............ 3-30
3.5 Operation weather .....................................................................................................3-32
3.5.1 Snow and ice .................................................................................................3-32
3.5.2 Lightning Strikes.............................................................................................3-32
3.6 Electrical safety..........................................................................................................3-33
3.6.1 Safety regulations for auxiliary power supply (220V AC) ................................3-33
3.7 Underground cables...................................................................................................3-34
3.7.1 In underground working, it is possible to damage: .........................................3-34
3.7.2 Safety precautions and protective measures when operating the equipment near
underground cables...................................................................................................3-34
3.7.3 Notes in connection with gas pipes................................................................. 3-35
3.7.4 The consequences of a gas pipe’s damage....................................................3-35
3.7.5 Measures adopted if a gas pipe is damaged and the gas escapes, or a leak is
suspected..................................................................................................................3-36
3.7.6 Measures adopted in the event of a gas fire ................................................... 3-36
3.7.7 Notes in connection with underground electric cables.....................................3-37
3.7.8 The consequences of damaging an underground cable.................................. 3-37
3.7.9 The measures taken when the machine damages an underground cable ....... 3-37
3.8 Checking safety measures.........................................................................................3-39
3.8.1 Daily inspection of the crane...........................................................................3-39
3.8.2 Safety checking before crane operation.......................................................... 3-39
3.9 Crane operation with a load ....................................................................................... 3-40
3.9.1 Counterweight................................................................................................3-40
3.9.2 Crane operation.............................................................................................3-41
3.10 Hand signals for controlling crane operations...........................................................3-53
Chapter 4 Crane operation
4.1 Operating and control instruments................................................................................4-1
4.1.1 Operator’s cab, overview..................................................................................4-1
4.1.2 Operating console............................................................................................4-3
4.1.3 Control lever.....................................................................................................4-4
4.1.4 Left control panel..............................................................................................4-7
4.1.5 Right control panel...........................................................................................4-8