Here is a video of the mower cutting grass once it is all sharp.
Step 1: Basics
The blades make a spiral so they are only cutting in one small spot at a time.
Here are the basic steps:
- Make it so the blades rotate the wrong way
- Put grinding compound on the blades, this makes the blades into there own sharpening stones
- Push the mower around until it is easy, this is called lapping (maybe reverse lapping...)
- Wash off the grinding compound
- Make the blades so they go the right way again
- Mow the lawn
Step 2: Take Off the Wheels
Step 3: Take Out the Gears
Step 4: Swap the Gears
Put the left gear on the right side and the right gear on the left side.
Now it will run backwards.
Step 5: Put the Wheels Back On
Step 6: Adjust the Fixed Blade
The blade that is fixed (not on the reel) can be positioned by adjusting two screws.
You want to make it so the fixed blade is touching the reel blades, so that it is hard to rotate the blades (but not impossible).
Step 7: Apply Grinding Compound
Putting valve grinding compound on the blades makes them into their own sharpening stones. The blades will sharpen each other, eventually they will both be sharp and fit together perfectly.
They have this at auto parts stores and on amazon: Valve Grinding Compound
Step 8: Push the Mower Backwards
Step 9: This Is What It Looks Like Sharp
Step 10: Wash Off the Grit With Water
As the blade gets sharper you can start to wash off the grit with water. This makes the blade easier to turn. You also want all the grinding compound to be gone by the time you are done.
Step 11: Take Off the Wheels, Again
Step 12: Swap the Gears, Again
Put the gears back on the correct sides. So that the mower will go forwards.