Notices for Replacing Excavator Slewing Bearing

Slewing Bearing also named Rotation bearing ,Slewing circle and Rotation circle,is an important part of excavator. Simply speaking, it not only plays the role of connecting the top and the bottom, but also is the basic guarantee of 360 degree rotation of excavator. Due to natural aging or improper maintenance, many excavator slewing bearings will be damaged. Many people are at a loss after the slewing circle are damaged. Today, Xiamen Fortune Industrial Co.,Ltd. will come to talk to you about the matters needing attention in replacing rotation bearing of excavators.

Based on years of experience in maintenance and fittings, Xiamen Fortune Industrial summarizes the following points for attention in replacing excavator slewing bearings:

1.   If the excavator slewing bearing is difficult to dismantle, the general reason is that the deformation of the base or the base is too large, resulting in distortion, and the bolt is difficult to rotate normally.

2.   When the seal of the slewing bearing is lost, the channel of the swing circle must be blocked.

3.   Lubricating oil can not be refueled, and the rhythm of stuck slewing circle will soon arrive.

4.   The crushing sound and creaking sound of the slewing bearing indicate that the isolation is fast and the loss of steel balls, rollers or channels is large.

5.   When disassembling the rotating circle parts, if the taper pin is not easy to take out, it means that the big and small heads are inverted and the plug is difficult to pull out through the threaded hole. The next steps are as follows:

a. Use a more gravitational rear-fall traction;

b. Examples of hydraulic jacks at both ends;

c. The screw hole of the plug is effectively enlarged to increase the pulling force.

d. Bolts of large diameter of drilling machine, then pulled out by falling objects

e. Destructive removal of plugs and processing of new plugs.