The specific method of repairing the body pit: 1. According to the location of the pit, choose the appropriate round crowbar.
2. Put the crowbar in the car body, and use appropriate force to raise a small pit with the crowbar round the top of the head.
3. Repair the position that the crowbar can't reach, such as the double or multi-layer on the car body, and you can use the pit puller.
4. When repairing the pit, pay attention to choose the appropriate current according to the position of the pit and the thickness of the large and small plates. If the current is too small, the electrode tip will not adhere to the metal plate. If the current is too large, it is easy to produce breakdown or deep weld marks.
5. Look at the datum plane of jack-up position from the body surface, and stop applying force when the protruding part just exceeds the datum plane of sheet metal. The repair method of jacking the pit with crowbar is relatively fast and effective. When operating, it is required to focus accurately and make the crowbar exert moderate force.
(Photo/Text/Photo: Pacific Auto Network Q&A called Beast)