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Removing and Replacing the Clutch

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.

The design of the Clutch on your machine is for rugged, dependable service, however, it is important to understand the limitations of a Clutch. The Clutch design is to provide load free starting of the Engine, and slippage under excessive overloading of the driven application. These features help protect the Engine from damages such as broken crankshafts and starters. The Shoes and Springs on the Clutch are normal wear items. If you notice decreased performance of the Clutch, check and replace them if necessary.

The Clutch obtains its power from the Engine RPM. The lower the engagement speed, and the higher the maintained Engine speed, the more torque the Clutch can transfer to the driven unit. NEVER operate the

DR 10HP CHIPPER Engine at less than full RPM.

NOTE: At engine start-up, the engine of your chipper operates under no load until approximately 1100-1200 RPM, at which speed the centrifugal clutch engages and begins driving the rotor. Proper rotor speed is 2400-RPM +/- 200 RPM.

•DO NOT TAMPER WITH THE ENGINE’S GOVERNOR SETTING. THE GOVERNOR CONTROLS THE MAXIMUM SAFE OPERATION SPEED AND PROTECTS THE ENGINE. OVER-SPEEDING THE ENGINE IS DANGEROUS AND WILL CAUSE DAMAGE TO THE ENGINE AND TO THE OTHER MOVING PARTS OF THE MACHINE. SEE YOUR AUTHORIZED DEALER FOR ANY ENGINE GOVERNOR ADJUSTMENTS.

•BECOME FAMILIAR WITH SUCCESSFUL OPERATING CONDITIONS AND AVOID THOSE THAT CAN OVERLOAD AND DAMAGE THE MACHINE.

•DO NOT OVERLOAD OR ATTEMPT TO CHIP MATERIAL BEYOND THE MANUFACTURERS RECOMMENDATION. PERSONAL INJURY OR DAMAGE TO THE MACHINE COULD RESULT. LEARN TO RECOGNIZE THE SOUND OF THE MACHINE DURING AN OVERLOAD CONDITION. ONLY YOUR OPERATOR EXPERIENCE WILL TELL YOU HOW FAST YOU CAN SUCCESSFULLY FEED MATERIAL INTO THE MACHINE.

•IF OVERLOADING OR ANY OTHER CAUSE JAMS THE MACHINE, STOP THE MACHINE IMMEDIATELY. IF YOU JAM THE MACHINE AND DO NOT STOP THE ENGINE, IT CAN BURN THE DRIVE BELT AND/OR RUIN THE CLUTCH. CLUTCH DAMAGE CAN BE COSTLY AND IT MAY NOT BE COVERED UNDER WARRANTY. FOR THIS REASON, IT IS IMPORTANT THAT YOU IMMEDIATELY SHUT OFF THE MACHINE IF IT BECOMES JAMMED.

•THE CENTRIFUGAL CLUTCH ON THIS MACHINE IS PERMANENTLY LUBRICATED AND DOES NOT REQUIRE OIL OR GREASE. IF, AFTER LONG PERIODS OF USE, THE DRUM WOBBLES EXCESSIVELY, REPLACE THE DRUM ASSEMBLY. ALWAYS REPLACE THE SHOES AND SPRINGS IN SETS. WHENEVER THE SHOES ARE CHANGED; REPLACE ALL SPRINGS.

34 DR® 10 HP CHIPPER

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Contents DR→ 10 HP Chipper Safety & Operating Instructions Toll-free phone 1-800-DR-OWNER Table of Contents Iv DR 10 HP Chipper Introducing the DR 10 HP Chipper Conventions used in this manualDR 10 HP Chipper General Safety Rules LabelsDR 10 HP Chipper DR 10 HP Chipper is made in the U.S.A. #091-0062 Protecting Yourself and Those Around You Safety for Children and Pets Safety with Gasoline Powered EnginesGeneral Safety Additional Information and Potential Changes 10 DR 10 HP Chipper Representatives at our toll free number 1-800-DR-OWNER Setting UP Your DR 10 HP ChipperUnpacking Tools and Supplies NeededBe careful when cutting the banding Tool Needed Attaching the Chipper HopperCheck the Tire Pressure Adding the Engine Oil and Gasoline CapacitiesFront 16 DR 10 HP Chipper Operating Your DR 10 HP Chipper Before Starting the EngineOperation Notes Processing Limbs and Branches Starting and Stopping the Engine Using the Chipper Hopper Reassemble To Free a Jammed FlywheelDisassemble Call Toll Free 1-800-DR-OWNER 24 DR 10 HP Chipper Maintaining the DR 10 HP Chipper Regular Maintenance Check ListProcedure EveryGrease Fittings Supplies NeededRemoving and Replacing the Engine Oil Adjusting or Removing and Replacing the Drive Belt 2 WrenchEngine Bolts, Front Belt Tensioner Clutch Drive Belt Removing and Replacing the Chipper Knife Knife SharpeningTools Needed Adjusting the Knife to Wear Plate Gap Wrench or Socket Gap Gauge providedRemoving and Replacing the Clutch DR 10HP Chipper Engine at less than full RPMInstalling a New Clutch Assembly Clutch Removal, Disassembly, and Re-Assembly End of Season and Storage 38 DR 10 HP Chipper Troubleshooting Troubleshooting TableEngine smokes Flywheel will not turn Drive Belt burns Chipper Knife is hitting the Wear Plate Part# Description Parts LISTS, Schematic Diagrams and WarrantyParts List DR 10 HP Chipper Schematic DR 10 HP Chipper Parts List Chipper Assembly Not IllustratedSchematic Chipper Assembly 46 DR 10 HP Chipper DR 10WarrantyHP Chipper Daily Checklist for the DR 10 HP Chipper
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