The slewing bearing of the wheeled crane is an important “joint” of the crane, so its maintenance is very important. When carrying out maintenance work, the first thing to be aware of is the risk of being dragged into the rotating pinion, crushing and shearing. When performing the following tasks, ensure that no maintenance personnel are in the danger zone between the main boom, upper carriage and roller, or between the lower carriage and roller when starting the engine to perform the necessary swing and luffing movements. Hazardous area, except for the crane operator (in the cab).

Wheeled Crane Maintenance

slewing bearings of wheeled cranes

1. Check the bolts of the slewing bearing

Before each crane work or at least once a week, check the bolts on the slewing bearing; after the first 100 working hours of the slewing bearing, check whether the bolts are loose, and then check again at the 300th working hour; check every 500 working hours thereafter Once; in severe working conditions, the inspection interval should be shortened.

When replacing bolts, first wipe the bolts clean, apply thread fastening glue and then tighten them; check the fastening bolts regularly to avoid the danger of bolt fatigue damage;

If the bolts are found to be loose during the inspection, please stop the construction work, and immediately contact the local after-sales service engineer, and let a professional inspect it to decide whether to disassemble and inspect immediately.

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