How do I keep my unit clean? To reduce yard debris buildup on your edger, do the following: 

• Wipe the machine after each use with a damp cloth. 
• Do not use aggressive detergents or solvents to clean plastic parts or handles. 
• Keep the trimmer head free of grass, leaves, and excessive grease. 
• Keep the air vents clean and debris-free to avoid overheating and damaging the motor or battery. 
• Do not spray water on the motor and electrical components.

How do I store my unit? 

• Before storage, clean and examine the machine for any damages. 
• Store the unit in a dry, covered, cool location like a garage or shed. 
• Store the unit in a secure location that is not accessible to children or any other persons who should not be operating such machinery. 
• Remove the battery pack from the machine and store the battery in a cool and dry location. 

Refer to the owner’s manual for more information on battery storage.

Battery-operated string trimmer:

• Ensure the battery has enough charge. 
• Use a fully charged battery when starting your work. 
• Check that the battery pack is installed and secured in the unit. If the battery is loose or easily removed, it's not fully secured. A fully secured battery should have some resistance when pulled. 

Corded string trimmers: 

• Use the guide inside the owner's manual to ensure you have the correct extension cord required for operation. 
• Check that the extension cords are in good working condition and are properly connected on both ends. 
• If it still won't turn on, follow the start guide instructions in the owner's manual.

Auto-feed string trimmers: To advance line, squeeze and release the trigger and repeat. Each time you start and stop the unit, approximately ¼ inch of trimmer line will release. The more often you do this, the more line will advance.

Bump and feed string trimmers: While the head is spinning, gently tap the bottom of the unit (knob) on the ground, and the string trimmer will release approximately ¼ inch of line each time you tap it. The more often you do this, the more line will be released.

Check the following if your unit suddenly stops cutting during use:
 

• The guard is not on the unit. Ensure the guard is attached for each use.
• The line is too heavy. Make sure you're using the correct cutting line for your unit. Refer to the manual for the proper line diameter for your string trimmer unit.
• The motor is overloaded. Ensure that the cutting path (length of line outside of the trimmer head) is no more than the maximum cutting width of your unit.
• The battery may be too warm. Allow it to cool, and try again. Remove the battery from the unit and take it indoors to a cool, dry, shaded location. Leave for 10 minutes, then try again once the battery cools. 
• The battery pack may require charging or may not be properly installed.
   

Check that the guard is free of debris. Built-up debris on the underside of the guard may prevent the line from cutting to its full potential. Ensure the cutting blade on the guard's underside is exposed, clean, and clear of debris. If the blade is dull, sharpen or replace the cutting blade—this will allow your trimmer line to work more effectively.

To ensure the best edging results and a better appearance, do the following: 

• Edge when your grass is dry. 
• Avoid edging in wet soil or wet grass. 
• Check the blade guard often and clear dirt and debris as needed.