1. Immediate shutdown and safety confirmation After discovering abnormal noise, the first step is to immediately shut down the machine for inspection to avoid the expansion of the fault and cause more serious damage. Under the premise of ensuring safety, disconnect the power supply and investigate the specific source of the noise to confirm whether the noise comes from the reducer itself, the motor or other connected components. 2. Core troubleshooting and treatment plan 1. Check the gear meshing and wear. Fault characteristics: If you hear periodic 'click' sounds, sharp metal friction sounds or knocking sounds, it usually indicates pitting, gluing, wear or even broken teeth on the gear tooth surface. Treatment method: Disassemble the reducer and check the condition of the gear tooth surface. If the tooth surface is damaged or chipped, it is necessary to replace it with a new gear of the same model; at the same time, clean the remaining metal debris inside the gear box to ensure that the meshing clearance of the new gear meets the standard (usually 0.1-0.2mm) to avoid impact caused by too large a clearance or aggravated friction if it is too small. 2. Check installation accuracy and connection failure Read More

Read More

1. Key operating specifications 1. Shutdown inspection Be sure to check the oil level when the reducer is completely stopped. During operation, the internal worm gear will cause the lubricating oil to splash. At this time, the observed oil level will be significantly higher due to the oil adhering to the gear and box wall, which cannot reflect the real oil amount and can easily lead to misjudgment. 2. For the correct oil level, add lubricating oil to 1/2 to 2/3 of the oil window (or oil mark). Too little oil: It will lead to insufficient lubrication and heat dissipation, accelerate the wear of worm gears and bearings, and even cause serious failures. Excessive oil volume: It will increase the internal oil stirring resistance, causing the oil temperature to rise abnormally. At the same time, excessive hydraulic pressure will impact the oil seal, which can easily cause oil leakage. 3. Standardize oil replenishment. If it is found that the oil level is lower than the lower limit of the oil window, the machine should be stopped immediately and replenished to the specified position after the equipment has cooled down. The lubricating oil specified in the equipment manual must be used (usually special oil for worm gears, such as L-CKE/P type or VG4 Read More

1. Intuitive monitoring of oil level: Reducers produced by regular manufacturers are usually equipped with a transparent oil window, which allows operators to directly observe the oil condition in the box without disassembling the equipment. For WPA worm gear reducers, the correct oil level usually needs to be maintained at 2/3 of the oil window (or the centerline position). 2. Ensure the lubrication and heat dissipation effect: Confirming that the oil level is sufficient through the oil level sight glass can ensure that the internal gears and worm gears of the reducer are fully lubricated, and avoid insufficient lubrication and poor gear splashing due to low oil level, which in turn aggravates component wear. At the same time, a suitable oil level can also prevent lubricating oil from splashing due to excessive oil level, affecting the heat dissipation effect or causing oil leakage. 3. Assisted judgment and standardized maintenance: The oil level sight glass provides an intuitive basis for daily inspection and regular maintenance of equipment. When checking or adding lubricating oil, it must be measured through the oil level sight glass when the reducer is stopped, because the oil level is Read More

Regarding the oil leakage problem of NGW122-8 reducer, if you want to deal with it quickly, you first need to clarify the specific location and cause of the oil leakage. The following are several quick troubleshooting and processing methods summarized for you: 1. Check and clean the breather cap (breather). When the reducer is running, the temperature rises and the internal pressure increases. If the breather cap (small nostril) is blocked by dust or sludge, the internal high pressure will force the lubricating oil out of the gap and cause oil leakage. Quick treatment of the breather cap: Unscrew the breather cap and check whether the small hole is unobstructed. You can use thin wire to clear it or clean it with compressed air. If the aging is serious, it is recommended to replace it directly. 2. Check and adjust the oil level. If too much oil is added, the oil pool will be violently stirred when the reducer is running, and the lubricating oil will splash everywhere and accumulate on the shaft seal, joint surface, etc., causing leakage. Quick oil level treatment: Observe the oil dipstick scale. If the oil level is too high, drain off the excess lubricating oil to keep the oil level within the normal scale range. Read More

1. There is a pressure difference between the inside and outside of the reducer. During the operation of the reducer, gear meshing friction and heat and the influence of ambient temperature will cause the temperature inside the machine to rise. Since the volume of the box remains unchanged, the internal pressure increases. If the ventilation holes are too small or blocked by dust or oil, the machine cannot equalize the pressure with the outside world, and lubricating oil will seep out from the gaps that are not tightly sealed under the pressure difference. 2. Unreasonable structural design or manufacturing process, box deformation and gaps: If the casting is not fully annealed or aged during manufacturing, the internal stress is not eliminated, and it is easy to deform and create gaps in subsequent use; in addition, if the inspection hole cover is too thin, it will easily deform after tightening the bolts, resulting in an uneven joint surface, which will cause leakage. Poor return flow: If there is no oil return groove designed on the box, the lubricating oil thrown by the gear to the shaft seal, end cover or joint surface cannot flow back to the oil pool, and will easily leak out under the action of pressure difference. Shaft seal defects: Early or poorly designed shaft seal construction (e.g. felt seal) Read More