Eric Z Saint Paul , MN January 25, 2015 Appliance: Whirlpool 4 1/2 Qt. Stand Mixer Classic - Tilt K45SSAC-0 Whirlpool Mixer K45ssac-0: Broken spring and speed link. How to replace Control Plate Spring. Found the broken parts upon disassembly. Ordered new parts. Parts were shipped very quickly. 4 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes