Honda HRX537C Owner's Manual page 31

Obstacles
Use the side of the mower to cut close to large obstacles, such as fences or
walls.
Release the drive clutch lever to disengage the drive when mowing around
trees and other obstacles. Push the mower around obstacles for better
directional control. Be careful when mowing over obstacles embedded in the
lawn, such as sprinkler heads, paving, edging, etc. Avoid anything that sticks
up above the surface of the lawn.
If the blade hits something, or if the mower starts to vibrate, stop the engine
immediately and check for damage. Striking objects may damage the blade,
bend the crankshaft, and/or break the mower deck or other components.
Vibration usually indicates serious trouble.
A worn, cracked, or damaged blade can break,
and pieces of the damaged blade can become
dangerous projectiles.
Thrown objects can cause serious injury.
Inspect the blade regularly, and do not operate
the mower with a worn or damaged blade.
The warranty does not cover parts damaged by accident or collision.
Gravel and Loose Objects
Gravel, loose stones, and landscaping material can be picked up by the
mower and thrown many feet with enough force to cause serious personal
injury and/or property damage. The best way to prevent potential injury from
thrown objects is to release the blade control lever to stop the blade before
reaching areas with gravel, loose stones, or landscaping material.
E
 WARNING
5. OPERATION
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