The drive wheel has a locking tab washer under the bolt which holds the wheel assembly on the end of the drive shaft. Step one is to bend the tab (or tabs) away from the side of the bolt. Put a socket on the bolt to remove it. Make note of the washer and lock tab orientation because there is another tab on the inside which locks into the motor shaft keyway. Spray lube into the shaft and keyway to free up the wheel and remove. A wheel puller is sometimes helpful here. When replacing the parts use Loctite on the bolt and tighten. The final step is to bend a lock tab up against the bolt head to keep it from backing out. The hard part of this whole process is removing the wheel assembly from the motor shaft. It may have seized on to the shaft. Place anti-seize or grease on the shaft after cleaning and before reassembly.
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Removal & Installation
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