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Cord Tips

We ship two thicknesses of cutting cord with your DR® TRIMMER/MOWER™: heavy-duty (130 mil) and extra heavy-duty (155 mil). Because conditions and vegetation vary so much, you should experiment with cord weights (diameters) to discover what works best for your particular mowing and trimming situations. Here are a few things to keep in mind:

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If you buy cutting cord in rolls, cut it in 23″ lengths.

Cord life depends on trimming conditions. Replace cords when they become broken or frayed.

■The smallest diameter cord capable of cutting the material at hand combined with the fastest engine speed usually provides the best trimming performance. When you need more power for thicker growth such as berry canes, brambles, thistles, or ragweed, you may want to use the extra heavy-duty (155 mil) cord in combination with the highest engine speed.

■Ease the ends of the cord into heavy growth and move slowly through thick growth. If there are woody weeds in the material you are cutting, the cutting cords may wrap around the stalks they cannot cut, and pull away from the trimmer head.

■To increase the cutting swath, install each cord slightly offset, with one end of the cord about an inch longer than the other. Be careful not to offset the cords by more than an inch. Doing so may cause the cords to hit the wheels.

■Please note that installing more than two cords at a time does not improve trimming performance—in fact, it can lessen it. Adding additional cords creates drag on the trimmer head, robs the engine of power and may cause wrapping. Installing two cords, 180 degrees apart, is the best method for optimal trimming performance.

■When replacing cords, do it one at a time and use the old cord to mark the position for the new cord to be installed.

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If the cord breaks off flush at the line plate, use the new cord to push the old cord out.

Storing the cord in a plastic bag with a damp sponge or cloth will help keep it pliable. You can also soak your cutting cord in a bucket of room temperature water for a few days before use to make it more pliable.

DR® TRIMMER/MOWER™ Safety & Operating Instructions 19