The role of wrecker winch in rescue
(1) Before installing the winch, check whether the components are complete and whether there is any damage. If any parts are damaged, they must be replaced before installation.
(2) The connection between the winch and the connection seat or bracket shall be fixed with a high-strength bolt with a mechanical performance of 10.9 or higher to ensure sufficient joint strength.
(3) After the winch is installed, check whether the hydraulic pipeline is connected wrongly, whether the clutch can be normally combined and separated, and whether the winch drum can be normally rotated and the phenomenon of jamming cannot occur.
(4) When winding the Wire Rope on the winch, put the rope head into the rope hole of the reel, then tighten the set screw and take the rope reeling condition. After winding 4-5 turns, load 3-5 KN force to tighten the wire rope.
(5) The maximum declination angle of the wire rope when it is wound into and out of the reel should not exceed 3° to prevent the chaos and the winch from deflecting. When it is deactivated, the rope tensioner will press the rope tightly to prevent the rope from loosening and disorderly.
(6) After installation of the winch, no-load operation shall be carried out before heavy-load test or long-term decommissioning to facilitate the smooth operation of the motor.
(7) Never lift the winch clutch when lifting heavy objects or pulling. When the winch is working, the wire rope will retain at least 5 turns on the drum.
(8) The use of overloaded winches is strictly prohibited to prevent damage to the winch and safety accidents.
In the process of using the rescue trailer winch, sometimes there will be some failures, common phenomena are:
(1) The winch or motor leaks. It is mainly used for a long time. If the seal is damaged or the connecting bolt is loose, just replace the seal and tighten the connecting bolt.
(2) The winch clutch is disengaged and the engagement is not smooth, mainly due to the misalignment of the clutch pawl or the problem of the clutch control mechanism. The rotation of the cylinder can make the jaws align and check and eliminate the malfunction of the operating mechanism.
(3) When the winch is working, the pressure is unstable and tremble. The main reason is that the load is unstable and the wire rope is swaying. The wire rope can be re-aligned (add weight on the hook to avoid no load collection).
The winch of the rescue trailer must be regularly maintained to ensure the safe use of the winch and extend the service life of the winch. To replace the lubricant in the winch box regularly, it is usually replaced once a year. Always check the winch and the motor for leaks. Always check whether the winch mounting bolts are loose. Always check the broken wire, wear, and deformation of the wire rope. Regularly lubricate the wire rope with lubricant. The wire rope that has reached end-of-life conditions must be replaced with a new steel wire rope. In general, it is necessary to use, maintain and maintain the winch strictly in accordance with the requirements of the specification in order to use the winch and the rescue trailer.
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