LG rotor Bolt Scraping after replacement

Hi, that usually points to the rotor/stator not sitting in the correct relationship to the rear tub after the bearing job, rather than the bolts simply “coming loose” on their own.

Before inspecting anything internal, isolate the washing machine from the mains.

1. Check the spider shaft is fully home in the new bearings If the drum shaft is not pressed fully through the bearings, the rotor will sit too far in and can foul the stator bolts. From the rear, compare how far the shaft projects and make sure the rotor pulls fully onto the taper/splines as intended.

2. Re-check the bearing and seal installation If one bearing is not fully seated, fitted crooked, or the wrong bearing/seal was used, the whole drum position can be slightly out. That small offset is enough to cause scraping on an LG direct drive motor.

3. Inspect the stator mounting Make sure the stator is sitting flat against the tub and that none of its mounting points are trapped, cracked or distorted. If the stator is tilted even slightly, the gold bolts can sit proud and get hit.

4. Check the rotor itself Look for distortion of the rotor, damage to the centre mounting face, or anything trapped behind it. Also inspect the main rotor fixing bolt and confirm the rotor was tightened fully.

5. Inspect the drum spider and shaft for play/run-out If the spider is cracked or the shaft is worn/bent, it may have seemed fine empty but moved under load, bringing the rotor into contact.

6. Replace any bent bolts Do not reuse badly bent bolts. They may no longer clamp correctly.

Most likely causes are: shaft not fully seated, bearing not fully home, or stator/rotor not sitting square. If you’re unsure, strip it back and check alignment carefully before running it again. If any mains-related work is needed, or if the spider/shaft damage is confirmed, it may be best to get a qualified appliance engineer in.

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