Diagnose needed repair for self-propelled drive system on walk-behind mower.

Following manufacturer's specifications and instructor's guidelines, process should include

• checking engagement and disengagement of drive system
• adjusting, repairing, or replacing if needed
• replacing or adjusting drive cogs if equipped.

Process/Skill Questions:

• What does the term self-propelled mean?
• What safety factors are involved with proper repair?
• How many different types of self-propelled mowers are there?