Title: Grind and balance rotary blade.
Course: Basic Small Engine Repair (20109) > Section: Diagnosing and Servicing Lawn Mower

Process should include

- inspecting blade for physical damage or wear
- grinding top edge to a 45º angle
- balancing to minimize vibration
- checking all mounting hardware for damage and alignment
- following manufacturer’s specifications and instructor’s guidelines.

Process/Skill Questions:

- What safety factors are involved in working with a sharp blade?
- Why balance a blade?
- How do you sharpen a blade?