spent Pevel Pinion Center Gear

remove the back cover part # 36, remove the top cover part # 1 (by removing the chrome ring parate # 28, the mobile disk part # 25 and six screws part # 24). This done, remove the system parat # 38 to release the Pevel Pinion Center Gear part # 15 and remove the damaged part and put the new part. The install the removed parts in reverse order as they withdrew.