Maintenance of Slewing Bearing
Bolts of the slewing bearing
Inspection Frequency:
Before each operation or at least once a week.
After 100 working hours of the initial operation.
After 300 working hours.
Every 500 working hours thereafter.
Shorten intervals in harsh conditions.
Clean bolts, apply thread-locking adhesive and tighten.
Regularly check for tightness to prevent bolt fatigue failure.
Stop operations and contact after-sales service if loose bolts are found.
Regular Inspection of the Slewing Bearing
Operational Check:
Ensure smooth rotation.
Stop and inspect if noise or impact is detected. Contact Sany service if necessary.
Structural Check:
Inspect for cracks, damage, or issues with meshing and tooth surfaces.
Seal Integrity:
Check seals regularly and replace them if damaged. Reset if detached.
Lubrication of the Slewing Bearing
Tooth Surface:
Apply rust-proof oil regularly.
Prevent hard objects from entering the gear meshing area.
Rolling Track:
Lubricate with oil or grease according to the working environment.
Grease before and after long-term storage.
Prevent water ingress during cleaning and lubricate afterward.
Shorten lubrication intervals in tropical, humid, dusty, or high-temperature environments.
Add grease while slowly rotating the bearing until it overflows, forming a sealing film.
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