2
4 Winch basics ................................................................................................. 29
4.1 Hydraulic System Basic Information
............................................ 29
4.1.1 General
.................................................................................................... 29
4.1.2 Outline Diagram for Installation of Winch Hydraulics
........... 30
4.1.3 Hydraulic Oil
.......................................................................................... 32
4.1.4 Power Supply
........................................................................................ 33
4.1.5 Hydraulic Function Diagram
............................................................ 34
4.1.6 Pressure setting of the control valve PVG32
........................... 44
4.2 How to calculate required pulling force
...................................... 46
4.3 How to improve rope spooling
....................................................... 48
4.4 Wire rope selection
............................................................................. 49
4.5 Dimensioning of rope sheaves
...................................................... 52
4.6 Rigging instructions
............................................................................ 53
5 Operating instructions
............................................................................ 59
5.1 General
.................................................................................................. 59
5.2 Pull out rope
.......................................................................................... 61
5.3 Attaching the load
............................................................................. 63
5.4 Engage the rope drum
..................................................................... 64
5.5 Pull the load
......................................................................................... 65
5.6 Unhook the load
.................................................................................. 66
5.7 Spool the rope back on the drum
................................................. 67
6 Maintenance
................................................................................................ 68
6.1 Gear drive
............................................................................................. 68
6.2 Drum brake
.......................................................................................... 69
6.3 Service and maintenance
................................................................ 71
6.4 Free-spool clutch
............................................................................... 79
6.5 Wire rope
.............................................................................................. 81
7 Troubleshooting
......................................................................................... 82
8 Technical information
............................................................................. 86
8.1 General
.................................................................................................. 86
8.1.1 Noise
........................................................................................................ 86
8.1.2 Vibration
................................................................................................. 86
8.2 Design standard
................................................................................... 86
8.3 EC declaration of conformity
........................................................... 89
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