DR Power Walk-Behind 11.50 fpt (August 2010 - Present) - Manual (Page 22)

22 DR ® LEAF AND LAWN VACUUM
Chapter 6: Troubleshooting
Most problems are easy to fix. Consult the Troubleshooting Table below for common problems and their solutions. If you
continue to experience problems, contact us at www.DRpower.com or call toll-free 1-800-DR-OWNER (376-9637) for support.
Troubleshooting Table
S YMPTOM P OSSIBLE C AUSE ; C ORRECTIVE A CTION
Engine fails to start
 Fuel tank empty; Fill tank with clean, fresh fuel.
 Spark plug wire disconnected; Connect wire to spark plug.
 Faulty spark plug; Clean, adjust gap or replace the spark plug.
Loss of power, operation
erratic
 Spark plug wire loose; Connect and tighten spark plug wire.
 Running on “CHOKE”; Move choke lever to “OFF” position.
 Blocked fuel line or stale fuel; Clean fuel line; fill tank with clean, fresh gasoline.
 Water or dirt in fuel system; Disconnect fuel line at carburetor to drain fuel tank.
 Carburetor out of adjustment; contact us at www.DRpower.com or call 1-800-DR-OWNER (376-
9637) for assistance.
 Dirty air cleaner; Clean or replace air filter.
Engine overheats  Carburetor not adjusted properly; contact us at www.DRpower.com or call 1-800-DR-OWNER
(376-9637) for assistance.
 Engine oil level low; Fill crankcase with proper oil.
 Internal engine cooling fan not working properly due to debris buildup over engine crank cover;
Clean debris away from engine crank cover for improved air circulation.
Unit does not discharge
 Discharge tube clogged; Stop engine immediately and disconnect spark plug wire. Clean inside
of blower housing. See “MAINTENANCE” section of this manual.
 Foreign object lodged in impeller; Stop engine immediately and disconnect spark plug wire.
Remove lodged object.
Excessive vibration.
 Loose parts or damaged impeller assembly; Stop engine immediately and disconnect spark plug
wire. Tighten all bolts & nuts. Make all necessary repairs. If vibration continues, contact us at
www.DRpower.com or call 1-800-DR-OWNER (376-9637) for assistance.
Chipper does not chip
 Solid object jammed in unit; Check & remove any obstruction.
 Broken or missing chipper blade; Replace blade.
 Broken or missing key in rotor assembly; Replace key.
Poor chipping
performance  Dull chipper blade; Sharpen or replace blade.
 Engine not reaching full RPM; contact us at www.DRpower.com or call 1-800-DR-OWNER (376-
9637) for assistance.
 Excessively worn engine shaft bearings; contact us at www.DRpower.com or call 1-800-DR-
OWNER (376-9637) for assistance.
 Loose bolt on rotor assembly; Tighten bolt.
 Loose chipper blade; Tighten mounting hardware.
Loss of vacuum  Vacuum snout clogged; Remove & clean.
 Collection bag full; Remove & empty bag.
 Discharge tube clogged; Remove collection bag & clean tube.
 Processing chamber clogged; Remove vacuum snout to clean chamber.
 Engine not reaching full RPM; contact us at www.DRpower.com or call 1-800-DR-OWNER (376-
9637) for assistance.
 Fan blades bent or broken; Replace rotor.
Shut down the engine, remove the spark plug wire and wait 5 minutes for parts to cool before performing any maintenance
procedure or inspection on the Machine.