DEMAG DC-Com 1 Operating Instructions Manual page 5

8.1 Safety Instructions for maintenance/repair ................................................................................................................ 68
8.2 Basic information on maintenance ............................................................................................................................ 69
8.3 Routine inspections ................................................................................................................................................... 70
8.3.1 Prescribed inspections .............................................................................................................................................. 70
8.3.2 Service life of the contactor ....................................................................................................................................... 70
8.3.3 Measures for achieving safe working periods S.W.P. ............................................................................................... 71
8.3.3.1 General...................................................................................................................................................................... 71
8.3.3.2 Calculating the actual duration of service S .............................................................................................................. 71
8.3.3.3 Example: DC-Com 10-1000 1/1 H5 V4/1 in 1Am ...................................................................................................... 72
8.3.4 General overhaul GO ................................................................................................................................................ 74
8.4 Inspection and maintenance schedule ...................................................................................................................... 74
8.5 Maintenance work ..................................................................................................................................................... 76
8.5.1 Suspension................................................................................................................................................................ 76
8.5.2 Electrical equipment cover ........................................................................................................................................ 76
8.5.3 Dismantling the chain collector box ........................................................................................................................... 77
8.5.4 Operating limit switch (as standard for DC-Com 10 reeving 2/1) .............................................................................. 77
8.5.4.1 Checking the operating limit switches ....................................................................................................................... 77
8.5.4.2 Checking the operating limit switch actuator ............................................................................................................. 78
8.5.5 Chain drive ................................................................................................................................................................ 79
8.5.5.1 Checking the sprocket wheel .................................................................................................................................... 79
8.5.5.2 Checking the chain guide .......................................................................................................................................... 79
8.5.5.3 Checking the guide plate ........................................................................................................................................... 79
8.5.5.4 Checking the hoist chain ........................................................................................................................................... 79
8.5.5.5 Scope of supply chain set ......................................................................................................................................... 82
8.5.5.6 Available hoist chains ................................................................................................................................................ 83
8.5.5.7 Replacing the chain set ............................................................................................................................................. 84
8.5.5.8 Lubricating the hoist chain......................................................................................................................................... 87
8.5.6 Load hook.................................................................................................................................................................. 88
8.5.6.1 Checking the load hook ............................................................................................................................................. 88
8.5.6.2 Checking the return sprocket .................................................................................................................................... 88
8.5.6.3 Replacing the hook assembly, reeving 1/1................................................................................................................ 89
8.5.6.4 Replacing the (standard) bottom block with internal switch-off springs, reeving 2/1................................................. 90
8.5.6.5 Replacing the (optional) bottom block with external switch-off springs, reeving 2/1 ................................................. 91
8.5.7 Buffer (only with optional operating limit switches for DC-Com 1-10 reeving 1/1) .................................................... 91
8.5.7.1 Checking the swich-off buffer / switch-off spring ....................................................................................................... 91
8.5.7.2 Buffer design ............................................................................................................................................................. 92
8.5.8 Brake ......................................................................................................................................................................... 94
8.5.8.1 Brake assignment...................................................................................................................................................... 94
8.5.8.2 Check brake wear ..................................................................................................................................................... 94
8.5.9 Slipping clutch ........................................................................................................................................................... 96
8.5.9.1 Checking the slipping clutch ...................................................................................................................................... 96
8.5.9.2 Adjusting the slipping clutch ...................................................................................................................................... 96
8.5.10 Gearbox / oil change ................................................................................................................................................. 97
8.5.11 Replacing the contactor on the control card .............................................................................................................. 98
8.5.12 Replacing cables ..................................................................................................................................................... 100
8.5.12.1 Replacing the control cable ..................................................................................................................................... 100
9 Faults / Warnings .................................................................................................................................................... 102
Safety instructions for faults / warnings ................................................................................................................... 102
9.1
9.2 7-segment display ................................................................................................................................................... 103
9.3 General messages .................................................................................................................................................. 103
9.4 Warning messages.................................................................................................................................................. 104
9.5 Error messages ....................................................................................................................................................... 105
10 Disassembly / Disposal ........................................................................................................................................... 106
10.1 General.................................................................................................................................................................... 106
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