6F65G11 5-18987654321Disassembling the base assembly1. Remove the O-ring and oil seal.Assembling the base assembly1. Apply grease to a new oil seal, theninstall it into the base assembly.2. Install a new O-ring.Power unit6F6502406F65025012Needle bearing attachment 1:90890-06654Driver rod L3 2: 90890-06652