DR Power Self-Propelled Pro-XL Self-Propelled 8.26fpt Subaru - Manual (Page 14)

14 DR ® TRIMMER/MOWER
Cord Tips
We ship two (2) thicknesses of Cutting Cord with your DR TRIMMER/MOWER.
The Cords are Blue (175-mil) and Green (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:

If you buy Cutting Cord in rolls, cut it in 25" lengths. Cut them at an angle so they will be easier to install.
 Soak your Cutting Cord in a bucket of room temperature water for a few days before use to make it more pliable. Storing the
Cord in a plastic bag with a damp sponge or cloth will help keep it pliable

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 grass trimming performance. When you need more power for thicker growth such as berry canes, brambles, thistles,
or ragweed, you may want to use the 175-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.
 Please note that installing more than two (2) 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
(2) Cords, 180 degrees apart, on the same line plate, 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 that you are replacing.

If the Cord breaks off flush at the Line Plate, use needle nose pliers to pull out the old Cord.

UV light can degrade cord, store out of direct sunlight.
The Mow-Ball ®
Allow the front end of the machine to rest lightly on the Mow-Ball ® or keep the
mow ball raised slightly above the ground as you are trimming. When mowing
the Mow-Ball should glide on the ground as you maneuver the machine. To
achieve the best and smoothest cut, do not lift up on the Handlebar while
operating your DR TRIMMER/MOWER. Lifting the Handlebar will force weight
down on the Mow-Ball
® . This uses more energy, slows the cutting, and
produces an unsatisfactory cut (Figure 19).
Self Propel Wheel Drive

When trimming with an in and out "vacuum cleaner" motion, be sure to
release the Wheel Engage Bar before pulling the Trimmer backwards.
 Push the trimmer forward a little after releasing the Wheel Drive Engage Bar.
This unlocks the wheel transmission clutches so you can pull the Trimmer
back easily.
Figure 19