How to proceed with the disassembly of components - undirbúningur fyrir endurnýjun hreyfilsins, gírkassa og annarra tækja

How to proceed with the disassembly of components

Each disassembly and reassembly of an assembly or subassembly in which the parts work together entails certain consequences: a repeated, not always desirable and correct process of lapping already worn (shaped, with a fixed texture) parts, especially in the case of replacing one of the cooperating parts.

The need to replace elements damaged as a result of dismantling (e.g. screws) and gaskets. Most often, the replacement of more elements than it results from the verification of the team. As a consequence, this shortens the service life of the assembly, compared to the undeaded one (it is about parts that are not damaged in an emergency).

An example may be the repair of the main gearbox, e.g. in PF126, in which it is impossible to set the wheels in their original, already arrived assembly during the replacement of bearings. The mutual position of the wheels of the hypoid gear is fundamental to its durability.

Conclusion: when replacing an emergency damaged element in the assembly, one should take into account the shortening of the service life of the entire assembly, as well as higher than planned repair costs. During repairs, pairs of cooperating elements should be replaced, which is the case, for example, in the main repairs envisaged by the manufacturer of the devices. Another solution is to repair and regenerate parts without dismantling, which until now belonged to SF issues, and which is now possible by ceramization technology. A noteworthy phenomenon is that the efficiency of using ceramization technology is higher for lower quality materials.

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