7.8.2 Post Installation Checks

  1. In the case of power operated winches, the power supply system must be checked in accordance with the manufacturer’s instructions. Check all winch functions and motions for proper operation before use. Ensure the supply is connected so that the control command is in the correct direction, e.g. that when the ‘up’ control is operated it results in an upward movement. Ensure any limit switches are operative. (See item 3 below)

  2. The rope should be extended to ensure the hook will reach the lowest point required without the rope running fully out and that at least the necessary number of dead turns remain on the drum.

  3. Where underwind/overwind limits or stops are to be used, ensure that they are correctly set and that they function correctly. A further check should be made if any changes have been made to the power supply.

  4. If a slipping clutch is fitted, check that this functions correctly in accordance with the manufacturer’s instructions. Similarly, other types of protective overload devices, e.g. pressure relief valves, must be checked to ensure that they are set and operate correctly. Always follow the manufacturer’s instructions and never try to adjust safety devices other than as instructed by the manufacturer.

  5. Ensure that the brake operates effectively. A load equal to the maximum line pull should be raised just clear of the ground and held by the ratchet and pawl where fitted, the load should then be taken by the brake. In all cases of winches used for lifting, the winch brake or mechanism must be capable of sustaining the SWL at any point throughout the range of lift.