1. Daily inspection and basic maintenance
Oil level and oil quality inspection
Check the oil level every day, the oil needs to be immersed in the worm tooth root position; observe the oil status every week, normal oil is amber. Once the oil turns black and contains metal debris, special worm gear lubricant should be replaced immediately. L-CKE/P 220 is recommended.
Temperature and noise monitoring
Monitor the temperature of the worm bearing seat every day. The normal operating temperature is ≤60℃. If the temperature exceeds 70℃, stop the machine immediately for inspection. Listen to the sound of the equipment running every week. If there is abnormal friction noise, it is most likely that the meshing gap is abnormal.
Cleaning and sealing inspection
Clean the dust on the surface of the heat sink every week to ensure the heat dissipation effect; check the installation direction of the double-lip oil seal at the worm end. The oil seal lip faces the oil chamber. If oil leakage occurs, replace the oil seal promptly.
2. Regular maintenance cycles and work items
monthly maintenance
Check the meshing clearance of the worm gear. The standard clearance is ≤0.2mm. If the wear exceeds the limit, the worm gear pair must be replaced in pairs. Tighten the anchor bolts (the torque of M20 bolts is controlled at 300-400N·m) and the flange screws connecting the motor.
3 to 6 months mid-term maintenance
Thoroughly clean the inner cavity of the reducer box and replace the lubricating oil. The first oil change for a new machine is 300-500 hours of operation, and then every 1500-2000 hours or 6 months. Replace the input and output shaft skeleton oil seals, and replenish or replace the bearings with high-temperature resistant lithium-based grease.
3. Overhaul and core parts replacement requirements
When the tooth thickness of the worm gear reaches 10%~15%, or there is severe pitting corrosion on the tooth surface, it must be replaced in pairs, and original parts are preferred. Replace the bearings when the bearing clearance exceeds the standard or the equipment vibrates abnormally; after the box is disassembled, the gaskets and O-rings on the joint surface must be replaced with new ones.
4. Usage environment and operating specifications
Keep the surroundings of the equipment dry and clean to reduce dust accumulation that hinders heat dissipation; in conditions with a lot of dust, the maintenance cycle should be shortened appropriately. The new machine is first put into trial operation without load, and then gradually loaded. If severe vibration occurs during operation and the temperature rises sharply, the machine must be shut down immediately to troubleshoot the problem.
5. Maintenance of ledgers and personnel management
Establish equipment maintenance files to record each maintenance information and equipment abnormalities to facilitate fault traceability analysis. Equipment operators need professional training to master basic fault diagnosis methods and emergency shutdown procedures.
Important notes
When changing the oil, be sure to drain the old oil, clean the box and then add new oil until the oil level reaches 2/3 of the oil window. It is prohibited to mix different brands of lubricants to prevent lubrication performance failure.
