Frame
General Instructions for Underbody Repair
Deformations (e.g. frame, members) that occur must be returned to the original state by using cold forming and straightening systems. If there are deformations in the area of the primary and secondary frames, always carry out repair work using checking and straightening bench equipment. Only when these preconditions are fulfilled can a correct diagnosis be made and the procedure for repair determined on the basis of this.
The given separation points, weld seam formations and welding processes must be observed with the utmost care, in order to achieve the original tensile behaviour. For shielded arc welding (MAG), use active inert gases, such as carbon dioxide and mixed gases with a high argon content and percentages of oxygen and carbon dioxide.
The electrode pressure required for resistance spot welding with hand spot welding tongs is not adequate with welding tongs with a length of over 40 mm/1.57 in. "Genuine Opel/Vauxhall Parts" with the corresponding anti-corrosion agents, damping and sealing compounds are to be used exclusively. Replacement of frame parts is correspondingly described under "Body - Sheet Metal Parts (Welded)".
