The 15-piece wear parts set for the Petromax HK500 contains essential replacement parts such as a ceramic burner, three mantles, a pressure gauge gasket, a valve insert, a pump leather, a nozzle, a nozzle needle, a pump valve seal, sealing rings, a graphite packing, as well as valve seals, springs, and sleeves. Complete maintenance of the lamp should be carried out regularly to ensure continued operational safety and light output; the frequency depends on individual usage intensity.