G'day alot of company's over here do not fit the little chain and clip as this makes the cover work on the little plastic bushes that mount it to the shaft, the current safety regs allow you to not have the chain on the guard as long as when you touch the guard it stops spinning. The prob they found over here was that the little bushes can fill with dirt and dust and will grind away rendering the guard next to useless when you need it
Jon