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Repair and maintenance procedures for the loader machine's gearbox include draining the oil, cleaning the interior with diesel or gasoline, and replacing the oil with new smooth oil after it has been drained. Add right away in the centre of the viewing area. In the future, changing the lubricating oil once a year is sufficient. The gearbox could become overheated from using too much lubricant, and an overloaded motor could activate the motor maintenance switch.