Angel B Bogota , NJ May 24, 2015 Appliance: LG Washer WM1812CW Lg Washer Wm1812cw: Wobbling and smell of smoke. How to replace Spider Arm Assembly. Ordering from AppliancePartsPros.com was easy, and the part was shipped out the same day and arrived within two days. After viewing the video on how to replace the spider, replacing the part was quick and easy. The hardest part was removing all the screws in order to get to the bottom of the washing machine where the spider is located. Its an easy one person job. Do-It-Yourself Rating: Repair Time Estimate: 1-2 hours