How Often Should You Change Gearbox Oil? Key Signs to Watch For

The frequency of gearbox oil changes depends on the gearbox type, load, operating temperature, environment, duty cycle, and manufacturer recommendations. If your gearbox exhibits abnormal overheating, excessive noise, vibration, oil leaks, discoloration, burnt odors, or metal shavings, immediate inspection is required to prevent damage to gears, bearings, and the gear motor.