32
DR
®
TRIMMER/MOWER
Troubleshooting Table (Continued)
S
YMPTOM
P
OSSIBLE
C
AUSE
The Engine won’t start
using Electric-Start.
(Please refer to the
Engine Owner’s manual
for Engine-specific
procedures.)
Check all of the items under the section called Electric Starting on page 12 and the previous
section on Manual Starting.
Check the wiring behind the Key switch; it may have vibrated off the Switch terminals.
Check the wire connections - especially the ground connection, the large black wire coming
from the Battery, where it connects to the Engine.
Check the wire connections to the Solenoid. Disconnect the black Battery ground wire first
to avoid sparks. Check to be sure that all of the connections are clean and tight. Reconnect
the Battery ground wire.
Check the ground connection on the Solenoid where it bolts to the Frame. Using a wrench
or socket, tighten the Bolts to ensure a good connection to the Frame.
Make sure the Battery is charged. Check the voltage yourself or at a service station. If it is
low, charge it with a 12-volt, 1 to 2 Amp trickle charger. If you do not use your machine for
at least 45 minutes at a time, the Battery may need to be periodically charged. See the
Battery Care section on page 29.
If your Battery is charged and your DR TRIMMER/MOWER still won’t start, visit our web
site at www.DRPower.com or call 1-800-DR-OWNER (376-9637) for assistance.
The Engine lacks power
or is not running
smoothly.
(Please refer to the
Engine Owner’s Manual
for Engine-specific
procedures.)
Check the Throttle travel. The Throttle Lever should be in the Run position.
Check for debris (hay seed, etc.) clogging the Air Filter Intake and clean out as required.
The Blower Housing, Throttle Linkage, and Cooling Fins should be free of debris. Clean
them following the instructions in the Engine Owner’s Manual.
Check that the Air Filter is clean. If it is dirty, change it following the procedure in the
Engine Owner’s Manual.
Remove the Spark Plug wire and dry the connection with a rag.
The Spark Plug may be dirty or cracked, change it. If it’s oily, leave it out, hold a rag over
the Spark Plug hole and pull the Recoil Cord several times to blow out any oil in the
Cylinder, then wipe off the Spark Plug and reinsert it.
You should be using fresh, clean, unleaded gas. If it is old, change it. Use a fuel stabilizer
if you keep gas longer than one month.
Check the Fuel Filter, it may be clogged. Replace if necessary.
Check that the Engine has the right amount of clean oil. If it is dirty, change it following the
procedure on page 26.
If your Engine still lacks power, visit our web site at www.DRPower.com or call 1-800-DR-
OWNER (376-9637) for assistance.
The Trimmer Head
won’t spin or lacks
power.
Check for proper alignment of the V-Belt. Check it against Figure 35 in the “Trimmer Head
Belt-All Models” on page 22.
The Belt may be worn or frayed; if so, replace it.
If the Trimmer Head still will not spin, follow the procedure for “Adjusting the Trimmer
Head Belt Tension through the Trimmer Control Cable” on page 28.
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.
Summary of Contents for SPRINT PRO
Page 35: ...CONTACT US AT www DRpower com 35 Notes...
Page 37: ...CONTACT US AT www DRpower com 37 Schematic Handlebar Assembly SPRINT and PRO Models 061213...
Page 39: ...CONTACT US AT www DRpower com 39 Schematic Axle Assembly SPRINT and PRO Models 050919...
Page 41: ...CONTACT US AT www DRpower com 41 Schematic Main Frame Assembly All Models 061212...
Page 43: ...CONTACT US AT www DRpower com 43 Schematic Handlebar Assembly PRO XL SELF PROPELLED 061213...
Page 45: ...CONTACT US AT www DRpower com 45 Schematic Axle Assembly SELF PROPELLED 080513 Front Rear...
Page 47: ...Schematic Mow Ball Assembly All Models 080513...
Page 48: ...Notes...
Page 49: ...Notes...
