What is the blade placement for a lawn tractor? Are they parallel or at 90 degrees to each other?

Question

One blade broke off and the repair manual says to replace them exactly as they were. I have none to compare it too. Please help!

Answer 1

My tractor has 3 blades on it. the center one is at 90 degrees from the other two. If they were all parallel they hit when turning.  I have had them off for sharpening and had to put them on at 90 degrees to keep them from hitting.

Answer 2

It couldn't possibly make any difference. The blades spin so fast it would not matter.

Answer 3

if theyre all belt driven, belt slippage, which is inevitable, will make blade placement irrelevant. the book is probably referring to not installing them upside down.

Answer 4

It really doesnt matter. I take mine off to sharpen and put them back on any way I can. I dont however put them on where they could possibly touch.