Powerhorse M16620D, Owner'S Manual, Page: 19 / 44

Operation
19
Warm-Up Checks

Slowly bring the engine throttle up.

Listen for any unusual metal to metal sounds as chipper wheel is rotating.

Listen for any belt squealing indicating belt needs to be tightened or
replaced

(Unusual sounds may mean a need for repair or cleaning out foreign
material stuck in chipper. STOP engine and refer to ―Maintenance and
Repairs‖ section of this manual)

If you don’t hear any unusual sounds, slowly bring engine up to full
throttle. This should be at the FAST or RUN position.
Normal Operation
Operate the engine with the throttle in the FAST or RUN position and with
the choke pushed fully to the RUN position. Proper chipping requires this
fast revolution.
3. Stopping the Engine



Move the throttle lever to the SLOW position and allow the
engine to run slowly for cool down. This reduces the chance of
backfire.

Turn the engine switch to the OFF position.

Turn the fuel valve lever to the OFF position.
DANGER: Amputation Hazard
Chipper knives will continue to rotate for a short time. Wait for all moving parts to come to a
complete stop.
WARNING: Fire Hazard
Allow the engine to cool for at least 5 minutes before moving to storage. A hot engine can be a fire
hazard.