DR 10 HP CHIPPER Safety & Operating Instructions Manual page 44

BEFORE PERFORMING ANY MAINTENANCE PROCEDURE OR INSPECTION, STOP THE ENGINE, WAIT FIVE
(5) MINUTES TO ALLOW ALL MOVING PARTS TO COME TO A COMPLETE STOP AND COOL. DISCONNECT
THE SPARK PLUG WIRE, KEEPING IT AWAY FROM THE SPARK PLUG.
S
YMPTOM
The engine lacks
power or is not
running smoothly.
(Please refer to the
Engine Owner's
Manual for engine-
specific
procedures.)
Engine smokes.
Flywheel will not
turn.
Drive Belt burns.
®
DR
40 10 HP CHIPPER
P C
OSSIBLE AUSE
⇒ Check the Throttle travel. Is the Throttle Lever in the Run position?
⇒ Is the Choke Lever pushed all the way to the left (RUN)?
⇒ Is the air filter clean? If it's dirty, change it following the procedure in the Engine
Owner's Manual.
⇒ Is the spark plug clean? If it's fouled 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.
⇒ Are you using fresh, clean unleaded gas? If it is old, change it. Use a fuel stabilizer
if you keep gas longer than one month.
⇒ Does your engine have the right amount of clean oil? If it is dirty, change it
following the procedure on page 27.
⇒ If your engine still lacks power, call 1(800) DR-OWNER (376-9637) for assistance.
⇒ Check the oil level and adjust as needed.
⇒ You may be operating the machine on too great an incline. The machine should be
level.
⇒ Check the air filter and clean or replace if needed.
⇒ You may be using the wrong oil - too light for the temperature. Refer to your Engine
Owner's Manual for detailed information.
⇒ Clean the engine cooling fins and the carburetor housing if they are dirty.
⇒
If the engine still smokes, call 1(800) DR-OWNER (376-9637) for assistance.
⇒ The Flywheel may be jammed. Immediately stop the engine. Remove any built-up
debris from the Chipper Hopper Inlet and Discharge Chute.
⇒ Check the Drive Pulley alignment and adjust if necessary.
⇒ Check the Drive Belt tension. See page 28.
⇒ Replace the Drive Belt or reinstall if the belt has come off the pulleys.
⇒ Turn the flywheel with a wooden stick to be sure it turns freely. If the Flywheel still
will not turn, call 1(800) DR-OWNER (376-9637) for assistance.
⇒
The Chipper is being overloaded; process material at a slower rate.
⇒
The Flywheel is jammed. See the Symptom above.
⇒
If the Drive Belt still burns, call 1(800) DR-OWNER (376-9637) for assistance.