LG LFXS28566 Series Technical Manual page 79

[Regarding grinding noise] If Servicing the Motor Assembly, Check for the Gear Washer
Bulletin Type : SVC Notice
Applicable for Serial Number : 901TN******* ~
Applicable for models: WT7060CW, WT7060CV, WT7100CW, WT7300CW, WT7300CV, WT7800CW, WT7800CV, WT7900HBA
Symptoms
Grinding noise, whirring noise, unusual noise from the motor
If the motor assembly is missing the 2mm thick washer on the w-
Cause shaft of the bearing housing, then the gear shaft will make contact
with the rotor. When the unit spins, it will make a noticeable noise.
Repair Instructions
1. Check for the washer
1) Remove the rotor nut and
pull the rotor off of the w-shaft.
2. Install if necessary and Check
1) If there isn't a washer there, or if there is visible damage on the washer,
install a new washer and reassemble the rotor.
2) Run a test cycle with a large load and listen for any unusual noise.
If the noise persists it may be necessary to replace the Clutch Coupling Assembly.
Current and New (Visual / Part number & Name etc) : There is no part number change (Part number: 1WZZEA4002C, SVC loc : K310)
Part Interchangeable:
Extended Warranty : This service is not covered by an extended
• The information is available through "https://gsfsplus-america.lge.com" with a valid ID.
• The information is intended for experienced technicians, not for customer .
• The information is subject to change or update without notice.
Service Bulletin
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Parts Others
Current Product
New Product
Applicable : only with symptoms
Picture
2) Check to see if there is a washer
on the shaft.
Washer(1WZZEA4002C)
Current Part New Part
Yes Yes
Yes Yes
Product : Washing Machine (Top loader)
Bulletin # : DFZ201900164-01
Release Date :

:with every repair
Washer
No Washer
Damage
Scrap Current Part in LG Warehouse

Yes No