How to Use a Gear Reducer

　　Tips

　　1. After running for 200–300 hours, the oil should be changed for the first time. During subsequent use, regularly check the oil quality, and promptly replace any oil that has become contaminated or degraded. In general, for gearboxes operating continuously over extended periods, change the oil every 5,000 hours of operation or once a year. For gearboxes that have been idle for long periods, it’s also recommended to replace the oil before restarting. Always top up the gearbox with oil of the same original grade—never mix oils of different grades. However, oils of the same grade but differing in viscosity can be safely blended.

　　2. When changing the oil, wait until the gearbox has cooled down completely to eliminate any risk of fire—but it should still feel warm, as the oil’s viscosity increases significantly once it’s fully cooled, making drainage more difficult. **Note:** Be sure to disconnect the power supply to the transmission system to prevent accidental re-energization.

　　3. During operation, if you notice the oil temperature rising by more than 80°C, the oil tank temperature exceeding 100°C, or any unusual noises, immediately stop using the equipment, investigate the cause, address and resolve the issue, and only resume operation after replacing the lubricating oil.

　　4. Users should establish reasonable usage and maintenance guidelines, and must carefully document the operation status of the gearbox as well as any issues identified during inspections. These regulations must be strictly enforced.

　　Maintenance

　　When selecting grease for the bearings of a traveling reducer, choose a grease with a lower penetration value for heavy loads. In applications operating under high pressure, in addition to low penetration, the grease should also exhibit high oil film strength and excellent extreme-pressure performance. When choosing grease based on environmental conditions, note that calcium-based greases are not easily soluble in water, making them ideal for dry environments or those with minimal moisture. Finally, when selecting grease according to the operating temperature, prioritize key indicators such as dropping point, oxidation stability, and low-temperature performance. The dropping point is typically used to assess high-temperature capabilities, and the actual operating temperature of the bearing should ideally remain 10–20°C below this value. For synthetic greases, the recommended usage temperature should be 20–30°C lower than the dropping point.

　　Different lubricants must not be mixed. The positions of the oil-level plug, drain plug, and breather are determined by the installation location.