DR Power Self-Propelled 6.75 Pro-XL (September 2010 - April 2013) - Manual (Page 34)

34 DR ® TRIMMER/MOWER
Troubleshooting Table (Continued)
S YMPTOM P OSSIBLE C AUSE
The Trimmer Head
keeps spinning or spins
when you release the
Bail Bar.  Check for proper alignment of the V-Belt. Check it against Figure 34 in the “Trimmer Head
Belt-All Models” on page 22.
 If the Trimmer Head keeps spinning when you release the Bail Bar, see “Adjusting the
Trimmer Head Belt Tension through the Trimmer Control Cable” on page 28.
 Check the Brake for excessive wear and replace if necessary. (See page 23)
 If none of the above helps, visit our web site at www.DRPower.com or call 1-800-DR-
OWNER (376-9637) for assistance.
The cutting Cords are
breaking.  The Cords may be too dry. Store Cords in a plastic bag with a damp sponge or cloth to
make them less prone to breaking or soak them in a bucket of water for a few days.
 You may be trying to do too much too fast. Ease into the material you are cutting; let the
Cord tips do the work. Take small bites of tall or tough vegetation. Cut half a swath at a
time, keeping the cut area to the discharge or right side of the Trimmer. Go over tall
material twice, the first time with the Trimmer Head tilted up and back; the second time
with the Mow-Ball
® Support on the ground.
 Make sure that you are not hitting the Cords against a stone or a chain-link fence. The
Cords won’t last as long against obstacles as in the open. Work on controlling the cutting
pattern. With practice, you’ll learn to cut closer to obstacles without hitting them.
 If none of the above helps, visit our web site at www.DRPower.com or call 1-800-DR-
OWNER (376-9637) for assistance.
The cutting Cords are
pulling out.  You may be moving too fast into tough, woody growth. In doing so, the Cords may wrap on
stalks and pull out. Check the operating tips in the section above on breaking Cords.
 Make sure that you are not trying to cut material too heavy for the Cord. The design of your
Trimmer is to cut green material up to about the thickness of a pencil. For very heavy
material, you may need the optional BEAVER BLADE® attachment.
 If none of the above helps, visit our web site at www.DRPower.com or call 1-800-DR-
OWNER (376-9637) for assistance.
PTA (Parallel
Trimming Action) is
difficult.  If you have adjusted the Handlebar up or down, you may need to adjust the PTA lever
location. See the section “Adjusting the PTA ® ” on page 11.
 If the above does not help, visit our web site at www.DRPower.com or call 1-800-DR-
OWNER (376-9637) for assistance.
The Mow-Ball
Support is wearing too
quickly.  You may be pushing the Trimmer Head down into the ground. The DR TRIMMER/MOWER
works best with a light touch, with the Mow-Ball ® Support resting easily on the ground.
 You may be hitting the Mow-Ball ® Support against rocks, concrete driveways or other hard
obstacles. Try approaching them slowly, and from different directions, to avoid
unnecessary wear.
 If none of the above helps, visit our web site at www.DRPower.com or call 1-800-DR-
OWNER (376-9637) for assistance.
Before performing any maintenance procedure or inspection, stop the engine, wait five (5) minutes to allow all parts to cool.
Disconnect the spark plug wire, keeping it away from the spark plug.