Maintenance Manual for Crawler Crane
4.12 Maintenance of load hooks and pulleys ....................................................................... 4-61
4.12.1 Daily inspection and maintenance of load hook ............................................... 4-61
4.12.2 Inspection of load hook .................................................................................... 4-62
4.12.3 Inspection of pulley ........................................................................................... 4-63
4.12.4 Pulley lubrication .............................................................................................. 4-64
4.13 Maintenance of wire ropes ........................................................................................... 4-65
4.13.1 Inspection of wire ropes ................................................................................... 4-65
4.13.2 Maintenance of wire ropes ............................................................................... 4-65
4.13.3 Take-down criteria ............................................................................................ 4-66
4.13.4 Comprehensive introduction of wire ropes ....................................................... 4-68
4.14 Maintenance of air conditioning .................................................................................... 4-73
4.14.1 Daily maintenance ............................................................................................ 4-73
4.14.2 Maintenance of air conditioning in slack season .............................................. 4-73
4.15 Operator’s cab .............................................................................................................. 4-74
4.15.1 Inspection of the windshield wiper and cleaning solution in the operator’s cab4-60
4.15.2 Inspection of the sliding door of the operator’s cab ......................................... 4-74
4.15.3 Inspection of the operator’s cab video monitoring system ............................... 4-74
4.16 Lubrication system ........................................................................................................ 4-75
4.16.1 Lubrication of boom pin .................................................................................... 4-76
4.17 Key structural member ................................................................................................. 4-77
4.17.1 Visual inspection ............................................................................................... 4-77
4.17.2 Periodic inspection ........................................................................................... 4-79
4.17.3 Inspection of structural members ..................................................................... 4-79
4.17.4 Inspection of counterweight .............................................................................. 4-95
4.17.5 Other inspection ............................................................................................... 4-96
4.18 Inspection and maintenance under special working environments ................................ 4-97
4.18.1 Working in mud, snow and rain ........................................................................... 4-97
4.18.2 Working at seaside .............................................................................................. 4-97
4.18.3 Dusty environment .............................................................................................. 4-97
4.18.4 Environment with many rocks ............................................................................. 4-97
4.18.5 Environment with falling rocks ............................................................................ 4-97
4.18.6 Cold environment ................................................................................................ 4-97
4.18.7 Other working environment ................................................................................. 4-97
Chapter 5 Troubleshooting
5.1 Troubleshooting of mechanical drive ................................................................................ 5-1
5.2 Troubleshooting of power system .................................................................................... 5-2
5.3 Troubleshooting of hydraulic system ................................................................................ 5-7
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