Hi guys, I have been reading your forum for months, and have gained LOTS of valuable information. Thanks so much to everyone for your posts and your pictures. They are amazing. I have a Yardstar STA-17 mower. It is a Bunnings mower that I bought new about 6 years ago. It has been pretty good, it has a "Chonda" motor (labelled a Komodo 160F), and it is essentially a Scott Bonnar 45 chassis. I know most of you will say, "You should have bought a name-brand mower", but it was my first reel mower and at the time I bought it I didn't know the difference. Yeah, if I had my time over again I would have bought a Rover 45, but I have this one and that's that. Anyhow.. The plastic thrust washer had worn totally away over the years, so I pulled the motor off, opened the cutter clutch and removed the clutch half on the chain case side and replaced the thrust pad washer. All good and working fine now (thanks to the video posted by deejay that showed how to remove the motor from a Scott Bonnar 45 and separate the clutch), however I feel my drive shaft and woodruff key is in pretty bad shape. I have some pictures, I think I have attached them. I bought a new drive shaft, new clutch bearing for the motor side of the clutch half, new self-aligning bearing for the chain case side, new woodruff keys for the clutch and the drive sprocket, and also a gear puller to remove the drive sprocket. My question is, how do I install the drive shaft into the chain case side bearing? Do I need some sort of press? I have read that people put the "drive shaft in the freezer and the bearing in the oven" before assembly... is that required? I'm a bit lost... Let me know... oh, and GREAT FORUM. Also, pity I didn't just buy a second hand Scott Bonnar 45 but I have this Yardstar and I wanna keep it running if I can.

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Last edited by muz; 12/04/18 12:58 AM.