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DR Pro 475 Safety & Operating Instructions Manual

Self-feeding wood chipper
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DR
®
SELF-FEEDING WOOD CHIPPER
SAFETY & OPERATING INSTRUCTIONS
Models:
Pro 475
Pro XL 575
Serial No.
Order No.
Read and understand this manual and all instructions before operating or servicing this DR SELF-FEEDING WOOD CHIPPER.
DR Power Equipment
Toll-free phone: 1-800-DR-OWNER (376-9637)
Website: www.DRpower.com

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Summary of Contents for DR Pro 475

  • Page 1 SAFETY & OPERATING INSTRUCTIONS Models: Pro 475 Pro XL 575 DR Power Equipment Serial No. Toll-free phone: 1-800-DR-OWNER (376-9637) Order No. Website: www.DRpower.com Read and understand this manual and all instructions before operating or servicing this DR SELF-FEEDING WOOD CHIPPER.
  • Page 2 ® SELF-FEEDING WOOD CHIPPER...

  • Page 3: Table Of Contents

    Additional Information and Potential Changes DR Power Equipment reserves the right to discontinue, change, and improve its products at any time without notice or obligation to the purchaser. The descriptions and specifications contained in this manual were in effect at printing. Equipment described within this manual may be optional.

  • Page 4: Chapter 1: General Safety Rules

    Labels Your DR SELF-FEEDING WOOD CHIPPER carries prominent labels as reminders for its proper and safe use. Shown below are copies of all the safety and operation labels that appear on the equipment. Take a moment to study them and make a note of their location on your DR SELF-FEEDING WOOD CHIPPER as you assemble and before you operate the unit.
  • Page 5 Pictogram Descriptions This label indicates proximity to machine openings with rotating blades inside. Keep bystanders 50 feet away from your work area at all times. Wood SERIOUS INJURY OR DEATH will occur chips exit the chipper at great speeds. if hands, feet, or any part of your body To be safe, do not operate the machine are placed in the chipper hopper, near small children or pets, and never...
  • Page 6 • Never, under any conditions, remove, bend, cut, fit, weld, or otherwise alter standard parts on the DR SELF-FEEDING WOOD CHIPPER. This includes all shields and guards. Modifications to your machine could cause personal injuries and property damage and will void your warranty.
  • Page 7 • Allow the engine to cool completely before storing the DR SELF-FEEDING WOOD CHIPPER in any enclosure. Never store the machine with gas in the tank or a fuel container, near an open flame or spark such as a water heater, space heater, clothes dryer or furnace.
  • Page 8 Keep in mind that the operator or user is responsible for accidents or hazards occurring to other people, their property, and themselves. • Your DR SELF-FEEDING WOOD CHIPPER is a powerful tool, not a plaything. Exercise extreme caution at all times. The design of this machine is to chip wood. Do not use it for any other purpose. •...

  • Page 9: Chapter 2: Setting Up The Dr Self-Feeding Wood Chipper

    This chapter outlines assembly and a few simple steps you will need to follow to set up your new machine before you use it. It may be helpful to familiarize yourself with the controls and features of your DR SELF-FEEDING WOOD CHIPPER as shown in Figure 1 before beginning these procedures.
  • Page 10 4 ... 112141 ..Cable Tie ............12 Compare the contents of the Shipping Crate and Hardware Package with the “Parts Supplied” list above. If you have any questions, please contact us at www.DRpower.com or call 1-800-DR-OWNER (376-9637) for assistance. Figure 3 ®...
  • Page 11 - IMPORTANT FIRST STEP ! - Chipper Knife Setting the Gap between Knife and Wear Plate Flywheel BEFORE you begin assembling the Chipper, you must set the clearance between the Knife and Wear Plate to 1/16" (Figure 4) by using the Knife Gap Gauge. First remove the Knife Gap Gauge that has been installed temporarily under the Wear Plate as described below.
  • Page 12 Attaching the Hopper Assembly Housing Stud Note: We recommend that you have someone help you lift the Hopper in place and support it until it is secured to the Chipper. Tools Needed: • Two 1/2" Wrenches For Pro-475 Models: Remove and discard the three Shipping Nuts from the Housing Bolts, but leave the Housing Bolts in place (Figure 7a).
  • Page 13 Discharge Attaching the Discharge Chute Bolts and Chute Locknuts Tools Needed: • Two 1/2" Wrenches Note: You may need to loosen surrounding hardware near the Discharge Chute mounting holes to make it easier to insert the Discharge Chute between the Housing Plates (Figure 9).
  • Page 14 10. There may be as much as 16 feet of extra wire at each Tail Light location Tail Light (Figure 15). Cut the excess Wire, leaving enough to insert into the back of each Light after Wires are stripped in the next step. 11.
  • Page 15 (Figure 19). Figure 18 Connecting the Battery Cable (Electric Start) We ship the electric-start DR SELF-FEEDING WOOD CHIPPER with the negative terminal battery cable disconnected. This prevents the battery from discharging during shipment. Before using your electric start DR SELF- FEEDING WOOD CHIPPER, you must connect the battery cable.
  • Page 16 Gas Fill Cap Adding Oil Place the machine on a level surface and remove the Dipstick (clean the end of the Dipstick with a rag) (Figure 21a and 21b). Machines are shipped with no oil. Add 1/2 of the SAE 30 high detergent oil recommended by the engine manufacturer and wait one minute for the oil to settle.

  • Page 17: Chapter 3: Operating Your Dr Self-Feeding Wood Chipper

    • Use only a wooden stick to clear jammed material. Before Starting the Engine Check the oil level every time you use the DR SELF-FEEDING WOOD CHIPPER. Add oil if needed (see Chapter 2 section “Adding Engine Oil and Gasoline”.
  • Page 18 Chipper Hopper into “chips”. Cut your materials into manageable lengths before feeding them into the Chipper Hopper. The chipper hopper must be securely bolted to your DR SELF-FEEDING WOOD CHIPPER and the blowback shield in place before using the machine! Use common sense when using the Machine.
  • Page 19 Slowly move the Throttle Control Lever all the way to the slow position (turtle icon). For electric start models, turn the Key to the off position to stop the engine. Remove the Key for safety. Note: Close the Fuel Shut-Off when transporting or storing the DR SELF-FEEDING WOOD CHIPPER. CONTACT US AT www.DRpower.com...
  • Page 20 Connecting the DR SELF-FEEDING WOOD CHIPPER to your Tractor – Yard-Tow Models Always secure the Support Leg in the up (transport) position before towing to prevent damage to the machine. Clevis Pin Lift the Chipper Tow Bar onto the Tractor Hitch and install the Hitch Pin and Hitch Clip to secure it (Figure 28).
  • Page 21 For extra safety and security, you may want to purchase a Lock or Lock Pin to install into the Latch Assembly of the Tow-Hitch Package (Figure 33). Connect the Wire Harness Connector to your Tow Vehicle and ensure that your lights on the Chipper are working properly. Lock or Lock Pin Avoid death or serious injury.
  • Page 22 To Free a Jammed Flywheel Shut down the Engine (The flywheel will continue to rotate for a while after the engine is shut off), Wait 5 minutes for the engine to cool and all moving parts to come to a complete stop, remove spark plug wire and disconnect the negative battery cable before moving or working on the chipper.

  • Page 23: Chapter 4: Maintaining The Dr Self-Feeding Wood Chipper

    Chapter 4: Maintaining the DR SELF-FEEDING WOOD CHIPPER This chapter covers regular maintenance procedures that will ensure the best performance and long life of your DR SELF- FEEDING WOOD CHIPPER. For engine maintenance, please refer to the Engine Owner’s Manual that came with your machine.
  • Page 24 Grease Fittings Belt Your CHIPPER was greased at the Factory. The operator needs to periodically Guard lubricate the two Bearings of the Chipper Assembly. Tools and Supplies needed: • Two 1/2" Wrenches • Flexible hose grease gun Bolt, Washer Locknut •...
  • Page 25 Note: Be sure to use environmentally safe procedures when disposing of the used oil. Removing, Replacing and Adjusting the Drive Belt Oil Check/Fill Use only DR Belts on your machine. The belts have been thoroughly tested and proven for many hours of use. Oil Drain Plug Note: The 16.5 Model has one Belt and the 21.0 has two.
  • Page 26 Remove the Belt (one Belt for Pro-475 or two for Pro XL-575) from the Clutch Pulley Clutch and Sheave (Figure 44). INSTALLING AND ADJUSTING THE BELT Note: The Belt Tensioning Adjusting Nut may need to be loosened up more per the previous instructions “Removing the Belt”...
  • Page 27 VISUAL inspection of the Chipper Knife (before each use) Routinely check the chipper knife for sharpness. Using a dull knife will decrease performance and cause excessive vibration that will cause damage to the DR SELF-FEEDING WOOD CHIPPER. Tools Needed: •...
  • Page 28 Routinely check the wear plate for a sharp square edge. Using a rounded or chipped wear plate will decrease performance and cause excessive vibration that will cause damage to the DR SELF-FEEDING WOOD CHIPPER and make chipping difficult for the operator.
  • Page 29 Removing and Replacing the Chipper Knife Rear Access Tools Needed: Cover Locknuts • 7/16" Wrench • 1/2" Socket with extension • 3/16" Allen wrench • Awl or Sharp Tool • Gloves Loosen the Locknuts that secure the rear Access Cover (Figure 51). Move the Cover over to align the larger portion of the hole with the Locknuts and Belt Guard remove the Cover.
  • Page 30 If you detect any of these, inspect the machine for damage, or any loose parts. Repair or replace any damaged parts and tighten any loose parts before starting the DR SELF-FEEDING WOOD CHIPPER.
  • Page 31 Chipper Knife Sharpening • You should never attempt to sharpen the Chipper Knife freehand. • Chipper It is extremely important to consistently maintain the 45-degree angle for Knife proper performance (Figure 57). • Excessive heat generated during the sharpening process will damage Knives and weaken the metal.
  • Page 32 Wear Plate. Removing and Replacing the Wheels The Wheels on the DR SELF-FEEDING WOOD CHIPPER are pneumatic. The Yard-Tow model has pressed in bearings for easy transport. The road tow model has tapered bearings designed for highway use. With use, tires or bearings may need replacing.
  • Page 33 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 SELF-FEEDING WOOD CHIPPER Engine at less than full RPM when chipping.
  • Page 34 Operate the engine for at least 45 minutes to maintain proper battery charge. If the battery loses its charge, you will need to use a trickle charger (like the DR Battery Charger) to recharge it. The charger should have an output of 12 volts DC at no more than 2 amps.
  • Page 35 Recycling a Used Battery Please dispose of your used batteries responsibly by recycling them. Call your local Solid Waste Management District or your local waste handler to locate the collection site nearest you. Some collection sites recycle batteries year-round; others collect them periodically. You can also visit the Website of Earth 911 for more information (www.earth911.org).
  • Page 36 ® SELF-FEEDING WOOD CHIPPER...

  • Page 37: Chapter 5: 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 DR Power Equipment for support. Shut down the Engine (The flywheel will continue to rotate for a while after the engine is shut off), Wait 5 minutes for the engine to cool and all moving parts to come to a complete stop, remove spark plug wire and disconnect the negative battery cable before moving or working on the chipper.
  • Page 38 Knife and tighten the screws.  If the machine still exhibits excessive vibration, contact us at www.DRpower.com or call 1(800) DR-OWNER (376-9637) for assistance. When chipping, the log  The Knife is dull; sharpen or replace it. See Chapter 4.
  • Page 39 CONTACT US AT www.DRpower.com...

  • Page 40: Chapter 6: Parts List And Schematic Diagrams

    Chapter 6: Parts List and Schematic Diagrams Parts List – Drive Assembly Note: Part numbers listed are available through DR Power Equipment. Ref# Part# Description Ref# Part# Description 164521 Key, 1/4 Square X 2 in 386571 Spacer, 0.73" Inch Long (Pro) 10000046073 Engine, B&S, 16.5 GTQ, M/S (Pro)
  • Page 41 Schematic – Drive Assembly CONTACT US AT www.DRpower.com...
  • Page 42 Parts List - Chipper Basic Assembly Note: Part numbers listed are available through DR Power Equipment. Ref# Part# Description Ref# Part# Description 10000043425 Sideplate, Hopper (Pro) 110721 Nut, Lock, 1/2-13, Gripco 10000043426 Sideplate, Hopper (Pro-XL) 10000043471 Plate, Wear (Pro) 10000043428...
  • Page 43 Schematic – Chipper Basic Assembly CONTACT US AT www.DRpower.com...
  • Page 44 Parts List – Base and Wheels Assembly – Yard Tow Note: Part numbers listed are available through DR Power Equipment. Ref# Part# Description Ref# Part# Description 10000043417 Base, Weldment (Pro) 10000043513 Tow Bar, Yard Tow 10000043476 Base, Weldment (Pro-XL) 10000043477...
  • Page 45 Schematic – Base and Wheels Assembly – Yard Tow CONTACT US AT www.DRpower.com...
  • Page 46 Parts List – Base and Wheels Assembly – Road Tow Note: Part numbers listed are available through DR Power Equipment. Ref# Part# Description Ref# Part# Description 10000043417 Base, Weldment (Pro) 129601 Bolt, HCS, 3/8-16 x 3, Gr5 10000043476 Base, Weldment (Pro-XL)
  • Page 47 Schematic – Base and Wheels Assembly – Road Tow CONTACT US AT www.DRpower.com...
  • Page 48 Parts List – Hopper Assembly Note: Part numbers listed are available through DR Power Equipment. Ref# Part# Description Ref# Part# Description 10000043419 Hopper Neck, (Pro) 10000043872 Screw, BHCS 5/16-18 X 1/2 GR5 ZP 10000043486 Hopper Neck, (Pro-XL) 187551 Nut, Nylon Lock, 5/16-18, LP...
  • Page 49 Schematic – Hopper Assembly CONTACT US AT www.DRpower.com...
  • Page 50 Notes: ® SELF-FEEDING WOOD CHIPPER...
  • Page 51 SELF-FEEDING WOOD CHIPPER is fit for ordinary purposes for which a product of this type is used. DR Power Equipment, however, limits the implied warranties of merchantability and fitness in duration to a period of two (2) years in consumer use, ninety (90) days for any other use.
  • Page 52 • Never store the DR SELF-FEEDING WOOD CHIPPER with fuel in the fuel tank inside a building where ignition sources are present, such as hot water and space heaters, clothes dryers and the like. If you are going to drain the fuel tank, do this outdoors. Allow the engine to cool before storing in any enclosure.

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