I need a manual for my I4222E snowblower. I use it all winter long. Doing many neighbors driveways and sidewalks. The auger is squeaking and I need to take it all apart because the grease zerks will not accept any grease. I cannot get the pulleys off so the shaft separates and I can pull the whole front assembly out to work on it. This is a great in-between size snowblower. Not to big and not to small.