16.50 PRO DR
®
RAPID-FEED™ CHIPPER
SAFETY & OPERATING INSTRUCTIONS
Chipper shown with
Optional Accessories
Serial No.
Order No.
READ AND UNDERSTAND THIS MANUAL AND ALL INSTRUCTIONS BEFORE OPERATING OR
SERVICING THIS 16.50 PRO DR RAPID-FEED CHIPPER.
Congratulations on your purchase of a new 16.50 PRO DR RAPID-FEED CHIPPER!
We have done our utmost to ensure that your 16.50 PRO DR RAPID-FEED CHIPPER will be one of the most
trouble-free and satisfying pieces of equipment you have ever owned. Please let us know of any questions you
may have. We want to answer them as quickly as possible. When you do call, please have your order number
handy. For technical assistance, please contact us at www.DRpower.com or call Toll-Free 1-800-DR-OWNER
(376-9637) and one of our Technical Support Representatives will be happy to help you. We also hope to hear
from you on how much you like your new helper.
In addition, please tell your friends about your new 16.50 PRO DR RAPID-FEED CHIPPER! Having DR Owners
spread the word about our products and our way of doing business is the best advertising we can have, and
the best way to help us provide even better service in the years to come.
Thanks once again!
for all of us at
DR Power Equipment
Sales Manager
COPYRIGHT
©2008 Country Home Products, Inc. All rights reserved.
®
DR
Power Equipment
A division of Country Home Products
®
127 Meigs Road
Vergennes, VT 05491
Toll-free phone: 1-800-DR-OWNER (376-9637)
Fax: 1-802-877-1213
Web site: www.dr-owner.com
ii 16.50 PRO DR® RAPID-FEED™ CHIPPER
Table of Contents
CHAPTER 1 ..........................................................................................................................................1
INTRODUCING THE 16.50 PRO DR RAPID-FEED CHIPPER..................................................... 1
Conventions used in this manual.................................................................................................1
Specifications ................................................................................................................................2
Serial Number ...............................................................................................................................2
Order Number...............................................................................................................................2
CHAPTER 2 ..........................................................................................................................................3
GENERAL SAFETY RULES ............................................................................................................3
Labels ..........................................................................................................................................3
Protecting Yourself and Those Around You.................................................................................6
Safety for Children and Pets..........................................................................................................7
Safety with Gasoline - Powered Machines ...................................................................................7
Towing Safety (applies only if Road-Towing Package is installed)..............................................8
General Safety................................................................................................................................9
A Note to All Users......................................................................................................................11
Additional Information and Potential Changes .........................................................................11
CHAPTER 3 ........................................................................................................................................13
SETTING UP YOUR 16.50 PRO DR RAPID-FEED CHIPPER.....................................................13
16.50 PRO DR RAPID-FEED CHIPPER Controls and Features .................................................13
Unpacking the 16.50 PRO DR RAPID-FEED CHIPPER..............................................................14
Attaching the Hopper Assembly ................................................................................................16
Attaching the Discharge Chute...................................................................................................16
Attaching the Hitch Plate............................................................................................................ 16
Connecting the Battery Cable (Electric Start)............................................................................. 17
Adding Engine Oil and Gasoline ................................................................................................17
Check the Tire Pressure ..............................................................................................................19
CHAPTER 4 ........................................................................................................................................21
OPERATING YOUR 16.50 PRO DR RAPID-FEED CHIPPER .....................................................21
Before Starting the Engine .......................................................................................................... 21
Operation Notes..........................................................................................................................22
Processing Material.....................................................................................................................22
Starting the Engine (Manual –Starting Chipper) .......................................................................24
Starting the Engine (Electric–Starting Chipper)......................................................................... 25
Stopping the Engine (Manual –Starting Chipper) .....................................................................26
Stopping the Engine (Electric –Starting Chipper)......................................................................26
Adjusting the Angle of the Tongue Weldment...........................................................................27
To Free a Jammed Flywheel ........................................................................................................ 28
CHAPTER 5 ........................................................................................................................................29
MAINTAINING THE 16.50 PRO DR RAPID-FEED CHIPPER....................................................29
Regular Maintenance Check List ................................................................................................29
Grease Fittings ............................................................................................................................30
Removing and Replacing the Engine Oil....................................................................................31
Removing, Replacing and Adjusting the Drive Belt ...................................................................31
Removing, Replacing and Adjusting the Chipper Knife and Wear Plate...................................34
Visual Inspection of the Chipper Knife (before each use) .........................................................35
Visual Inspection of the Chipper Knife and Wear Plate (every 8-10 hours)..............................35
Removing and Replacing the Wear Plate ...................................................................................37
Checking and Adjusting the Knife to Wear Plate Gap................................................................38
Chipper Knife Sharpening ........................................................................................................... 39
CONTACT US AT www.DRpower.com or CALL TOLL FREE 1-800-DR-OWNER iii
Wear Plate Sharpening................................................................................................................40
Removing and Replacing the Wheels .........................................................................................41
Removing and Replacing the Clutch ..........................................................................................41
Installing a new Clutch Assembly...............................................................................................42
Battery Care (electric start only) .................................................................................................43
Charging the Battery....................................................................................................................43
Recycling a Used Battery.............................................................................................................44
End of Season and Storage.........................................................................................................45
CHAPTER 6 ........................................................................................................................................47
TROUBLESHOOTING ................................................................................................................47
Troubleshooting Table ................................................................................................................47
CHAPTER 7 ........................................................................................................................................51
CHIPPER ACCESSORIES ............................................................................................................51
Extended Top-Discharge Chute ..................................................................................................51
Installation...................................................................................................................................51
Operation.....................................................................................................................................52
Maintenance................................................................................................................................52
Road-Towing Package .................................................................................................................53
Unpacking the Road-Towing Package ........................................................................................53
Installation...................................................................................................................................54
Towing ........................................................................................................................................59
Hitch Coupler Adjustment Check...............................................................................................60
Hitch Coupler Adjustment..........................................................................................................60
CHAPTER 8 ........................................................................................................................................62
PARTS LIST AND SCHEMATIC DIAGRAMS..............................................................................62
Parts List - 16.50 PRO DR RAPID-FEED CHIPPER ....................................................................62
Schematic - 16.50 PRO DR RAPID-FEED CHIPPER...................................................................63
Parts List - 16.50 PRO DR RAPID-FEED CHIPPER ....................................................................64
Schematic - 16.50 PRO DR RAPID-FEED CHIPPER...................................................................65
Parts List – Chipper Basic ...........................................................................................................66
Schematic - Chipper Basic ..........................................................................................................67
Parts List – Hopper Assembly ....................................................................................................68
Schematic – Hopper Assembly................................................................................................... 69
Parts List – Accessories...............................................................................................................70
Schematic – Accessories.............................................................................................................71
Notes: ........................................................................................................................................73
Daily Checklist for the 16.50 PRO DR RAPID-FEED CHIPPER..................................................76
iv 16.50 PRO DR® RAPID-FEED™ CHIPPER
CHAPTER 1
INTRODUCING THE 16.50 PRO DR RAPID-FEED CHIPPER
This manual will help you set up and safely operate your new 16.50 PRO DR RAPID-FEED CHIPPER.
Careful adherence to the safety and operating instructions in this manual will ensure many years of
productive use.
Please let us know of any questions you may have. We want to answer them as quickly as possible.
When you do call, please have your order number handy. For technical assistance, please contact us at
www.DRpower.com or call Toll-Free 1-800-DR-OWNER (376-9637) and one of our Technical Support
Representatives will be happy to help you.
Conventions used in this manual
THIS INDICATES A HAZARDOUS SITUATION, WHICH, IF NOT FOLLOWED, WILL RESULT IN DEATH
OR SERIOUS INJURY.
THIS INDICATES A HAZARDOUS SITUATION, WHICH, IF NOT AVOIDED,
OR SERIOUS INJURY
THIS INDICATES A HAZARDOUS SITUATION, WHICH, IF NOT AVOIDED,
OR MODERATE INJURY.
THIS INFORMATION IS IMPORTANT IN THE PROPER USE OF YOUR MACHINE. FAILURE TO FOLLOW
THIS INSTRUCTION COULD RESULT IN DAMAGE TO YOUR MACHINE OR PROPERTY.
Tip: This is a helpful hint to guide you in getting the most out of your 16.50 PRO DR RAPID-FEED
CHIPPER.
Tools Needed: This indicates you will need a special tool to perform a maintenance function on your
Chipper.
NOTE:
This information may be helpful to you.
.
COULD RESULT
COULD RESULT
IN
IN
DEATH
MINOR
If you are ever unsure about an action you are about to take, don’t do it. Contact us at www.DRpower.com or
call DR Power Equipments’ toll-free support at 1-800-DR-OWNER (376-9637) for help or information.
CONTACT US AT www.DRpower.com or CALL TOLL FREE 1-800-DR-OWNER 1
Specifications
MECHANICAL
SPECIFICATIONS
Engine........................................ Briggs & Stratton
Series.................................... 1650
Oil Capacity .......................... 28 oz.
Fuel Tank Capacity............... 4 Quarts
Chipping Capacity..................... 4.5" Diameter
Wheel Size................................. 5.30/4.50-6 Pneu. (standard non-highway): 4.80/4.00-8 Pneu. (optional Road-
Towing Package only)
Axle ............................................ 3/4" Round Axle (standard non-highway): 1" Spindles Welded to 2" X 2" X 1/4"
Angle (optional Road-Towing Package only)
Number of Chipper Knives....... 1
Chipper Knife Size..................... 6-1/4" X 2" X 3/8"
Chipper Knife Material.............. Heat Treated Tool Steel
Adjustable Knife Wear Plate ..... Yes
Chipper Flywheel....................... 16-1/2" Dia. X 3/4" Thick
Flywheel Weight ........................ 55 Lbs
Chipper Knife Tip Speed ........... 118 mph
Hopper Material........................ 7 GA Neck, 14 GA Hopper
Frame Material.......................... 10 GA Steel
Hopper Opening at Top ........... 22-1/2" x 29"
Machine Weight........................ 372 Lbs (manual-start), 392 Lbs (electric-start)
SHIPPING
SPECIFICATIONS
Shipping Dimensions ............... 48" W x 67" L x 38" H
Shipping Weight........................ 505 Lbs. (electric start w/ Tow Hitch)
Serial Number
A Serial Number is used to identify your machine. The number is located on the Serial Number Label on
your machine. For your convenience and ready reference, enter the Serial Number in the space provided
on the front cover of this manual.
Order Number
An Order Number is used to check and maintain your order history. The number is located on the
upper left portion of your packing slip. For your convenience and ready reference, enter the Order
Number in the space provided on the front cover of this manual.
2 16.50 PRO DR
®
RAPID-FEED™ CHIPPER
CHAPTER 2
#
GENERAL SAFETY RULES
• READ THIS SAFETY & OPERATING MANUAL BEFORE YOU USE THE 16.50 PRO DR RAPID-FEED
CHIPPER. BECOME FAMILIAR WITH THE OPERATION AND SERVICE RECOMMENDATIONS TO
ENSURE THE BEST PERFORMANCE FROM YOUR MACHINE.
• THOROUGHLY INSPECT THE AREA IN WHICH YOU WILL BE WORKING AND REMOVE ALL
FOREIGN OBJECTS. LOOK FOR ROPE, WIRE, ETC., AND REMOVE THESE OBJECTS BEFORE
CHIPPING. INSERTING THESE OBJECTS INTO THE CHIPPER HOPPER COULD DAMAGE THE
MACHINE AND/OR CAUSE INJURY.
• THIS IS A HIGH-POWERED MACHINE, WITH MOVING PARTS OPERATING WITH HIGH ENERGY
AT HIGH SPEEDS. YOU MUST USE PROPER CLOTHING AND SAFETY GEAR WHEN OPERATING
THIS MACHINE TO PREVENT OR MINIMIZE THE RISK OF SEVERE INJURY. THIS MACHINE CAN
CRUSH, GRIND, CUT, AND SEVER PARTS OF YOUR BODY IF THEY ENTER THE INLET OR
DISCHARGE AREA OF YOUR CHIPPER.
Labels
Your 16.50 PRO DR RAPID-FEED 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 16.50 PRO DR RAPID-FEED CHIPPER
as you assemble and before you operate the unit. Replace damaged or missing safety and operation
labels immediately.
241801
CONTACT US AT www.DRpower.com or CALL TOLL FREE 1-800-DR-OWNER 3
#242331 (electric start model only)
#
#
127811
#242041
242611 (Road-Towing Package only)
4 16.50 PRO DR
®
RAPID-FEED™ CHIPPER
CONTACT US AT www.DRpower.com or CALL TOLL FREE 1-800-DR-OWNER 5
Protecting Yourself and Those Around You
THIS IS A HIGH-POWERED MACHINE, WITH MOVING PARTS OPERATING WITH HIGH ENERGY AT
HIGH SPEEDS. YOU MUST OPERATE THE MACHINE SAFELY. UNSAFE OPERATION CAN CREATE A
NUMBER OF HAZARDS FOR YOU, AS WELL AS ANYONE ELSE IN THE NEARBY AREA. ALWAYS TAKE
THE FOLLOWING PRECAUTIONS WHEN USING THIS MACHINE:
• ALWAYS WEAR PROTECTIVE GOGGLES OR SAFETY GLASSES WITH SIDE SHIELDS WHILE
CHIPPING TO PROTECT YOUR EYES FROM POSSIBLE THROWN DEBRIS.
• AVOID WEARING LOOSE CLOTHING OR JEWELRY, WHICH CAN CATCH ON MOVING PARTS OR
THE MATERIAL FED INTO THE CHIPPER HOPPER.
• WE RECOMMEND WEARING GLOVES WHILE CHIPPING. BE SURE YOUR GLOVES FIT PROPERLY
AND DO NOT HAVE LOOSE CUFFS OR DRAWSTRINGS.
• WEAR SHOES WITH NON-SLIP TREADS WHEN USING YOUR CHIPPER. IF YOU HAVE SAFETY
SHOES, WE RECOMMEND WEARING THEM. DO NOT USE THE MACHINE WHILE BAREFOOT OR
WEARING OPEN SANDALS.
• WEAR LONG PANTS WHILE OPERATING THE 16.50 PRO DR RAPID-FEED CHIPPER.
• USE EAR PROTECTORS OR EAR PLUGS RATED FOR AT LEAST 20 DBA TO PROTECT YOUR
HEARING.
• NEVER ALLOW PEOPLE WHO ARE UNFAMILIAR WITH THESE INSTRUCTIONS TO USE THE
CHIPPER. ALLOW ONLY RESPONSIBLE INDIVIDUALS WHO ARE FAMILIAR WITH THESE RULES OF
SAFE OPERATION TO USE YOUR MACHINE.
• NEVER PLACE YOUR HANDS, FEET, OR ANY PART OF YOUR BODY IN THE CHIPPER HOPPER,
DISCHARGE OPENING, OR NEAR OR UNDER ANY MOVING PART WHILE THE MACHINE IS
RUNNING. KEEP AREA OF DISCHARGE CLEAR OF PEOPLE, ANIMALS, BUILDINGS, GLASS, OR
ANYTHING ELSE THAT WILL OBSTRUCT CLEAR DISCHARGE, CAUSE INJURY, OR DAMAGE. WIND
CAN ALSO CHANGE DISCHARGE DIRECTION, SO BE AWARE. IF IT BECOMES NECESSARY TO
PUSH MATERIAL INTO THE CHIPPER HOPPER, USE A SMALL DIAMETER STICK, NOT WITH YOUR
HANDS.
• KEEP BYSTANDERS 100 FEET AWAY FROM YOUR WORK AREA AT ALL TIMES. WOOD CHIPS EXIT
THE CHIPPER AT GREAT SPEEDS. TO BE SAFE, DO NOT OPERATE THE MACHINE NEAR SMALL
CHILDREN OR PETS, AND NEVER ALLOW CHILDREN TO OPERATE THE CHIPPER. STOP THE
ENGINE WHEN ANOTHER PERSON OR PET APPROACHES.
• NEVER USE THE MACHINE WITHOUT ENSURING THAT ALL GUARDS AND SHIELDS ARE IN
PLACE, INCLUDING THE CHIPPER HOPPER, DISCHARGE CHUTE AND BLOWBACK SHIELD.
• DO NOT OPERATE THE ENGINE WITH THE AIR CLEANER OR THE CARBURETOR AIR INTAKE
COVER REMOVED. REMOVAL OF SUCH PARTS COULD CREATE A FIRE HAZARD. DO NOT USE
FLAMMABLE SOLUTIONS TO CLEAN THE AIR FILTER.
• ALWAYS OPERATE THE MACHINE FROM THE OPERATOR ZONE (SEE CHAPTER 4). NEVER PASS
OR STAND ON THE DISCHARGE SIDE OF THE MACHINE WHEN THE ENGINE IS RUNNING OR
6 16.50 PRO DR
®
RAPID-FEED™ CHIPPER
• NEVER TRY TO PICK UP, MOVE, OR TRANSPORT THE MACHINE WHILE THE ENGINE IS RUNNING
OR THE FLYWHEEL IS TURNING.
• THE MUFFLER AND ENGINE BECOME VERY HOT AND CAN CAUSE A SEVERE BURN; DO NOT
TOUCH.
• CLEAR THE AREA OF OBJECTS SUCH AS WIRE AND ROPE, ETC. INSERTING THESE OBJECTS INTO
THE CHIPPER HOPPER COULD DAMAGE THE FLYWHEEL AND/OR CAUSE INJURY.
• NEVER, UNDER ANY CONDITIONS, REMOVE, BEND, CUT, FIT, WELD, OR OTHERWISE ALTER
STANDARD PARTS ON THE 16.50 PRO DR RAPID-FEED CHIPPER. THIS INCLUDES ALL SHIELDS
AND GUARDS. MODIFICATIONS TO YOUR MACHINE COULD CAUSE PERSONAL INJURIES AND
PROPERTY DAMAGE AND WILL VOID YOUR WARRANTY.
Safety for Children and Pets
TRAGIC ACCIDENTS CAN OCCUR IF THE OPERATOR IS NOT ALERT TO THE PRESENCE OF CHILDREN
AND PETS. CHILDREN ARE OFTEN ATTRACTED TO THE MACHINE AND THE CHIPPING ACTIVITY.
NEVER
THESE PRECAUTIONS:
ASSUME THAT CHILDREN WILL REMAIN WHERE YOU LAST SAW THEM. ALWAYS FOLLOW
• KEEP CHILDREN AND PETS AT LEAST 100 FEET FROM THE WORKING AREA AND UNDER THE
WATCHFUL CARE OF A RESPONSIBLE ADULT.
• BE ALERT AND TURN THE MACHINE OFF IF CHILDREN OR PETS ENTER THE WORK AREA.
• NEVER ALLOW CHILDREN TO OPERATE THE 16.50 PRO DR RAPID-FEED CHIPPER.
Safety with Gasoline - Powered Machines
GASOLINE IS A HIGHLY FLAMMABLE LIQUID. GASOLINE ALSO GIVES OFF FLAMMABLE VAPOR THAT
CAN BE EASILY IGNITED AND CAUSE A FIRE OR EXPLOSION. NEVER OVERLOOK THE HAZARDS OF
GASOLINE. ALWAYS FOLLOW THESE PRECAUTIONS:
• NEVER RUN THE ENGINE IN AN ENCLOSED AREA OR WITHOUT PROPER VENTILATION AS THE
EXHAUST FROM THE ENGINE CONTAINS CARBON MONOXIDE, WHICH IS AN ODORLESS,
TASTELESS, AND DEADLY POISONOUS GAS.
• STORE ALL FUEL AND OIL IN CONTAINERS SPECIFICALLY DESIGNED AND APPROVED FOR THIS
PURPOSE AND KEEP AWAY FROM HEAT AND OPEN FLAME, AND OUT OF THE REACH OF
CHILDREN.
• REPLACE RUBBER FUEL LINES AND GROMMETS WHEN WORN OR DAMAGED AND AFTER 5 YEARS
OF USE.
CONTACT US AT www.DRpower.com or CALL TOLL FREE 1-800-DR-OWNER 7
• FILL THE GASOLINE TANK OUTDOORS WITH THE ENGINE OFF AND ALLOW THE ENGINE TO COOL
COMPLETELY. DON'T HANDLE GASOLINE IF YOU OR ANYONE NEARBY IS SMOKING, OR IF YOU'RE
NEAR ANYTHING THAT COULD CAUSE IT TO IGNITE OR EXPLODE. REINSTALL THE FUEL TANK AND
FUEL CONTAINER CAPS SECURELY.
• IF YOU SPILL GASOLINE, DO NOT ATTEMPT TO START THE ENGINE. MOVE THE MACHINE AWAY
FROM THE AREA OF THE SPILL AND
AVOID CREATING ANY SOURCE OF IGNITION UNTIL THE GAS
VAPORS HAVE DISSIPATED. WIPE UP ANY SPILLED FUEL TO PREVENT A FIRE HAZARD AND
PROPERLY DISPOSE OF THE WASTE.
• ALLOW THE ENGINE TO COOL COMPLETELY BEFORE STORING 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.
• NEVER MAKE ADJUSTMENTS OR REPAIRS WITH THE ENGINE RUNNING OR FLYWHEEL TURNING.
SHUT DOWN THE ENGINE, WAIT FOR ALL MOVING PARTS TO COME TO A COMPLETE STOP (THE
FLYWHEEL WILL CONTINUE ROTATING FOR A WHILE AFTER THE ENGINE IS SHUT DOWN),
DISCONNECT SPARK PLUG WIRE, KEEPING IT AWAY FROM THE SPARK PLUG TO PREVENT
ACCIDENTAL STARTING, DISCONNECT THE NEGATIVE BATTERY CABLE, THEN WAIT 5 MINUTES
BEFORE MAKING ADJUSTMENTS OR REPAIRS.
• NEVER 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. IF REQUIRED, SEE YOUR AUTHORIZED DEALER FOR ENGINE GOVERNOR
ADJUSTMENTS.
Towing Safety (applies only if Road-Towing Package is installed)
• BEFORE TOWING, BE CERTAIN THE 16.50 PRO DR RAPID-FEED CHIPPER IS CORRECTLY AND
SECURELY ATTACHED TO THE TOWING VEHICLE AND THE SAFETY CHAINS ARE IN PLACE.
LEAVE SLACK IN THE CHAINS TO ALLOW FOR TURNING.
• NEVER ALLOW ANYONE TO RIDE ON THE 16.50 PRO DR RAPID-FEED CHIPPER.
• NEVER TRANSPORT ANYTHING ON THE MACHINE.
• OBEY LOCAL, STATE, AND FEDERAL REGULATIONS WHEN YOU TOW THE CHIPPER ON PUBLIC
ROADS AND HIGHWAYS.
NOTE: Some states may require the machine to be registered with the State Department of Motor
Vehicles.
• ALLOW FOR ADDED LENGTH IN DRIVING SITUATIONS, E.G., WHEN TURNING, PARKING, AND
CROSSING INTERSECTIONS.
• ADJUST YOUR TOWING SPEED FOR TERRAIN AND CONDITIONS. DO NOT EXCEED 45 MPH
WHILE TOWING THE CHIPPER.
8 16.50 PRO DR
®
RAPID-FEED™ CHIPPER
• TOWING THE MACHINE CAN AFFECT HANDLING OF THE TOW VEHICLE:
− THE CHIPPER MIGHT TRACK AT AN ANGLE TO THE TOW VEHICLE.
− THE MACHINE CAN TURN TIGHTER THAN THE TOW VEHICLE.
− NEVER BACK UP THE TOW VEHICLE WITH THE CHIPPER ATTACHED. THE MACHINE
CAN JACKKNIFE, CAUSING DAMAGE TO ITSELF AND/OR THE TOW VEHICLE.
• LONG DISTANCE TOWING IS NOT RECOMMENDED. THE 16.50 PRO DR RAPID-FEED CHIPPER
DOES NOT HAVE SPRINGS TO ABSORB ROAD SHOCK AND WILL TEND TO BOUNCE ON ROUGH
ROADS. EXTENDED TOWING CAN CAUSE UNNECESSARY WEAR.
General Safety
OPERATING THIS CHIPPER SAFELY IS NECESSARY TO PREVENT OR MINIMIZE THE RISK OF
OR SERIOUS INJURY
ALWAYS TAKE THE FOLLOWING PRECAUTIONS WHEN OPERATING THIS CHIPPER:
• KEEP IN MIND THAT THE OPERATOR OR USER IS RESPONSIBLE FOR ACCIDENTS OR HAZARDS
OCCURRING TO OTHER PEOPLE, THEIR PROPERTY, AND THEMSELVES.
• YOUR 16.50 PRO DR RAPID-FEED 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.
• KNOW HOW TO STOP THE CHIPPER QUICKLY; SEE CHAPTER 4.
• OPERATE THIS MACHINE ON A LEVEL SURFACE ONLY. NEVER OPERATE YOUR UNIT ON A
SLIPPERY, WET, MUDDY, OR ICY SURFACE. EXERCISE CAUTION TO AVOID SLIPPING OR
FALLING.
• KEEP YOUR FACE AND BODY BACK FROM THE CHIPPER HOPPER TO AVOID ACCIDENTAL
BOUNCE BACK OF ANY MATERIAL.
• WHEN FEEDING MATERIAL INTO THE CHIPPER HOPPER, BE EXTREMELY CAREFUL THAT PIECES
OF METAL, ROCKS, OR OTHER FOREIGN OBJECTS ARE NOT INCLUDED. PERSONAL INJURY OR
DAMAGE TO THE MACHINE COULD RESULT.
• NEVER ALLOW AN ACCUMULATION OF PROCESSED MATERIAL TO BUILD UP IN THE
DISCHARGE AREA AS THIS WILL PREVENT PROPER DISCHARGE AND CAN RESULT IN KICKBACK
FROM THE CHIPPER HOPPER.
. UNSAFE OPERATION CAN CREATE A NUMBER OF HAZARDS FOR YOU.
DEATH
CONTACT US AT www.DRpower.com or CALL TOLL FREE 1-800-DR-OWNER 9
• WHENEVER YOU LEAVE THE OPERATING POSITION OR IF YOU HAVE TO REMOVE PROCESSED
(
MATERIAL, LEAVES, OR DEBRIS FROM THE MACHINE, ALWAYS SHUT DOWN THE ENGINE. SHUT
DOWN THE ENGINE, WAIT FOR ALL MOVING PARTS TO COME TO A COMPLETE STOP (THE
FLYWHEEL WILL CONTINUE ROTATING FOR A WHILE AFTER THE ENGINE IS SHUT DOWN),
DISCONNECT SPARK PLUG WIRE, KEEPING IT AWAY FROM THE SPARK PLUG TO PREVENT
ACCIDENTAL STARTING, DISCONNECT THE NEGATIVE BATTERY CABLE, THEN WAIT 5 MINUTES
BEFORE REMOVING PROCESSED MATERIAL, LEAVES, OR DEBRIS FROM THE MACHINE.
• ALWAYS STOP THE ENGINE WHEN MOVING THE 16.50 PRO DR RAPID-FEED CHIPPER.
• KEEP COMBUSTIBLE SUBSTANCES AWAY FROM THE ENGINE WHEN IT IS HOT.
• NEVER COVER THE MACHINE WHILE THE MUFFLER IS STILL HOT.
• SEE MANUFACTURER’S INSTRUCTIONS FOR PROPER OPERATION AND INSTALLATION OF
ACCESSORIES. ONLY USE ACCESSORIES APPROVED BY DR POWER EQUIPMENT.
• IF THE CUTTING MECHANISM STRIKES A FOREIGN OBJECT OR IF YOUR MACHINE SHOULD
START MAKING AN UNUSUAL NOISE OR VIBRATION, SHUT DOWN THE ENGINE, WAIT FOR ALL
MOVING PARTS TO COME TO A COMPLETE STOP (THE FLYWHEEL WILL CONTINUE ROTATING
FOR A WHILE AFTER THE ENGINE IS SHUT DOWN), DISCONNECT SPARK PLUG WIRE, KEEPING
IT AWAY FROM THE SPARK PLUG TO PREVENT ACCIDENTAL STARTING, THEN WAIT 5 MINUTES
BEFORE INSPECTING FOR CLOGGING OR DAMAGE. VIBRATION IS GENERALLY A WARNING OF
TROUBLE. CLEAN AND REPAIR AND/OR REPLACE DAMAGED PARTS.
• NEVER TAMPER WITH SAFETY DEVICES. CHECK THEIR PROPER OPERATION REGULARLY.
• STAY ALERT FOR HIDDEN HAZARDS OR TRAFFIC. NEVER CARRY PASSENGERS ON YOUR
MACHINE.
• NEVER OVERLOAD OR ATTEMPT TO CHIP MATERIAL BEYOND THE MANUFACTURER’S
RECOMMENDATION; SEE CHAPTER 4. PERSONAL INJURY OR DAMAGE TO THE MACHINE
COULD RESULT.
• WHILE USING THE 16.50 PRO DR RAPID-FEED CHIPPER, DON'T HURRY OR TAKE THINGS FOR
GRANTED. WHEN IN DOUBT ABOUT THE EQUIPMENT OR YOUR SURROUNDINGS, STOP THE
MACHINE AND TAKE THE TIME TO LOOK THINGS OVER.
• NEVER OPERATE THE MACHINE WHEN UNDER THE INFLUENCE OF ALCOHOL, DRUGS, OR
MEDICATION.
• USE THE MACHINE ONLY IN DAYLIGHT.
• KEEP ALL NUTS AND BOLTS TIGHT AND KEEP THE EQUIPMENT IN GOOD OPERATING
CONDITION.
• NO LIST OF WARNINGS AND CAUTIONS CAN BE ALL-INCLUSIVE. IF SITUATIONS OCCUR THAT
ARE NOT COVERED BY THIS MANUAL, THE OPERATOR MUST APPLY COMMON SENSE AND
OPERATE THIS CHIPPER IN A SAFE MANNER. CONTACT US AT WWW.DRPOWER.COM OR CALL
800) DR-OWNER (376-9637) FOR ASSISTANCE.
1
10 16.50 PRO DR
®
RAPID-FEED™ CHIPPER
A Note to All Users
Under California law, and the laws of some other states, you are not permitted to operate an internal
combustion engine using hydrocarbon fuels without an engine spark arrester. This also applies to
operation on US Forest Lands. All 16.50 PRO DR RAPID-FEED CHIPPERS shipped to California, New
Mexico and Washington State are provided with spark arresters. Failure of the owner or operator to
maintain this equipment in compliance with state regulations is a misdemeanor under California law
and may be in violation of other state and/or federal regulations. Contact your local fire marshal or
forest service for specific information in your area.
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. Some
illustrations may not be applicable to your machine.
CONTACT US AT www.DRpower.com or CALL TOLL FREE 1-800-DR-OWNER 11
12 16.50 PRO DR
®
RAPID-FEED™ CHIPPER
CHAPTER 3
r
SETTING UP YOUR 16.50 PRO DR RAPID-FEED CHIPPER
This chapter outlines unpacking 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 16.50 PRO
DR RAPID-FEED CHIPPER as shown in Figure 1 before beginning these procedures. If you have any
questions at all, please feel free to contact us at www.DRpower.com or call our Customer Service
Representatives at our toll free number: 1-800-DR-OWNER (376-9637).
16.50 PRO DR RAPID-FEED CHIPPER Controls and Features
Chipper Knife
Access Covers
Belt Guard
Belt
Tensioner
Pneumatic
Wheel
Tongue
Assembly
Fuel Fill
Cap
Discharge
Chute
Blow-Back
Shield
Choke
Lever
Fuel
Shutoff
Oil Fill /
Dipstick
Throttle
Leve
Battery
(Electric Start)
Starter
Cord
Hopper
Assembly
Chipper
Knife
Wear
Plate
Key
Switch
Oil Drain
Electric Start
On/Off
Toggle
Switch
Oil Drain
Manual Start
Figure 1
CONTACT US AT www.DRpower.com or CALL TOLL FREE 1-800-DR-OWNER 13
Extended TopDischarge Package
(optional Accessory)
Road-Towing Package
(optional Accessory)
Unpacking the 16.50 PRO DR RAPID-FEED CHIPPER
NOTE: Unpacking the 16.50 PRO DR RAPID-FEED CHIPPER is a
two-person job. We recommend you have an extra set of hands
available before you begin because the 16.50 PRO DR RAPIDFEED CHIPPER weighs 372 lbs. (Manual Start) and 392 (Electric
Start).
Chipper
Figure 2
Discharge
Chute
Figure 3
Safety
Glasses
Safety &
Operating
Instructions
Manual
Hardware
Package
Parts Box
Hopper
Assembly
Engine
Owners
Manual
Tools and Supplies Needed:
• Gloves
• Metal Shears (Side Cutters)
• Pry Bar
• Hammer
Parts supplied on Skid (Figure 2):
• 16.50 PRO DR RAPID-FEED CHIPPER
• Hopper Assembly
• Extended Top-Discharge Chute (if ordered, see
Chapter 7 “Chipper Accessories”)
• Road-Tow Package (if ordered, see Chapter 7
“Chipper Accessories”)
• Parts Box containing (Items below and Figure
3):
− Discharge Chute
− Safety Glasses
− Safety & Operation Instructions
− Engine Owner’s Manual
− Hardware Package (Figure 4 and Table
below)
Manual
2
5
Figure 4
14 16.50 PRO DR
4
3
6
®
RAPID-FEED™ CHIPPER
ARDWARE PACKAGE CONTENTS (FIGURE 4)
H
1
ITEM # DESCRIPTION
QTY
1 Bolt, 5/16-18 X 5-1/2" 5-1/2 2
2 Nylon Locknut, 5/16-18
10
3 5/16-18 x 1" Bolts 8
4 5/16" Flat Washer 12
5 Hitch Plate 1
6 Knife Gap Gauge 1
7 Engine Key (not shown) 2
• WEAR EYE PROTECTION WHEN CUTTING THE BANDING. THE BANDING MAY HAVE A LOT OF
TENSION ON IT AND MAY SNAP AND CUT YOU. ALWAYS STAND TO ONE SIDE WHEN CUTTING
THE BAND.
• STABILIZE THE SHIPPING CONTAINER ON CLEAN FLAT TERRAIN BEFORE ATTEMPTING TO
UNPACK AND ASSEMBLE THE CHIPPER.
• FOR YOUR SAFETY WE RECOMMEND YOU HAVE TWO PEOPLE FOR THE FOLLOWING
1. Cut the Plastic Banding that is securing the Parts Box
and any Accessory Box that may be strapped to the
Crate Top (Figure 5).
2. Pry off the bottom four boards that connect the Crate
top to the Pallet.
3. With help from another person, lift the Crate Top
from the Pallet.
4. Remove the Parts Box and the Road-Tow Package (if
ordered).
5. Carefully cut the Steel banding holding the machine
and Hopper Assembly to the pallet (Figure 6).
6. Cut the Plastic Banding that is holding the Extended
Top-Discharge Chute (if ordered) to the Pallet and
remove the Extended Top-Discharge Chute.
Crate Top
Pallet
Figure 5
Hopper
Assembly
Steel
Banding
Plastic
Banding
Bottom
Board
Chipper
Assembly
7. With the help of another person, carefully remove the
Hopper Assembly and roll the 16.50 PRO DR RAPIDFEED CHIPPER from the shipping pallet, resting it on
the Tongue Assembly.
8. Compare the contents of the shipping carton and the
Part Box with the Parts Supplied list on the previous
page. If there are any questions contact us at
www.DRpower.com or call 1-800-DR-OWNER (376-
9637). Do not discard the shipping materials until
you are fully satisfied with your new 16.50 PREMIER
DR RAPID-FEED CHIPPER.
CONTACT US AT www.DRpower.com or CALL TOLL FREE 1-800-DR-OWNER 15
Steel
Banding
Plastic
Banding
Figure 6
Attaching the Hopper Assembly
Figure 7
Hopper
Assembly
Hopper
Hardware
Discharge
Chute
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
1. Attach the Hopper Assembly to the Chipper with six
5/16"-18 x 1" Bolts, twelve Flat Washers (one Washer
on Bolt side and one on Lock Nut side) and six Nylon
Lock Nuts (Figure 7).
NOTE: Install hardware with Bolt Head on the top side.
Attaching the Discharge Chute
Tools Needed:
• Two 1/2" Wrenches
1. Position the Discharge Chute as shown and secure
with two 5/16-18 x 5-1/4" Bolts and Nylon Locknuts
(Figure 8).
Figure 8
Figure 9
Hardware
Tongue
Assembly
Bolts and
Locknuts
Hitch
Plate
Attaching the Hitch Plate
Tools Needed:
• Two 1/2" Wrenches
1. Position the Hitch Plate onto the Tongue Assembly as
shown and secure with two 5/16-18 x 1" Bolts and
Nylon Locknuts (Figure 9).
16 16.50 PRO DR
®
RAPID-FEED™ CHIPPER
Connecting the Battery Cable (Electric Start)
We ship the electric-start 16.50 PRO DR RAPID-FEED
CHIPPER with the negative terminal battery cable
disconnected. This prevents the battery from discharging
during shipment. Before using your electric start 16.50
PRO DR RAPID-FEED CHIPPER, you must connect the
battery cable.
1. Slide the Terminal of the Negative Battery Cable onto
the Negative Terminal Lug of the Battery (Figure 10).
Adding Engine Oil and Gasoline
Capacities
Engine SAE 30 Oil - 28 oz. (0.83 L)
Fuel Tank Unleaded gasoline, 4 US quarts (3.79 L)
Figure 10
Positive
Battery
Cable
Negative
Battery
Cable
Battery
• YOU MUST ADD OIL BEFORE STARTING THE ENGINE. THIS MACHINE IS SHIPPED WITHOUT
OIL. TRACES OF OIL MAY BE IN THE RESERVOIR FROM FACTORY TESTING, BUT YOU MUST ADD
OIL BEFORE STARTING THE ENGINE. FILL THE RESERVOIR SLOWLY CHECKING THE DIPSTICK
FREQUENTLY TO AVOID OVERFILLING.
• TO GET AN ACCURATE READING WHEN CHECKING THE OIL LEVEL:
- THE MACHINE SHOULD BE ON A LEVEL SURFACE.
- THE DIPSTICK SHOULD BE PUSHED ALL THE WAY DOWN AND TURNED A QUARTER TURN
CLOCKWISE TO ENSURE AN ACCURATE OIL LEVEL READING.
Tip: To avoid confusion, we recommend leaving the caps on the gas and oil fills until you are ready to
pour either gasoline or oil into the correct fill.
NOTE: Use SAE 30 high detergent oil classified “For Service SF, SG, SH, SJ” or higher. Do not use special
additives. Other types of oil could cause problems operating your machine. Please refer to your
Engine Owner’s Manual for detailed oil information.
CONTACT US AT www.DRpower.com or CALL TOLL FREE 1-800-DR-OWNER 17
Figure 11
Dip Stick
Gas Fill
Cap
Adding Oil
1. Place the machine on a level surface and remove the
Dipstick (clean the end of the Dipstick with a rag)
(Figure 11).
2. 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.
3. Replace the Dipstick all the way in and turn a quarter
turn clockwise to ensure an accurate reading and then
remove it to check the oil level.
Too Low
(add oil)
Too Full
(drain oil)
oil at a time, rechecking the Dipstick until the oil
reaches the fill mark (Figure 12). Be careful not to
overfill.
4. If the oil level is low continue adding a few ounces of
Operating
Range
Figure 12
Adding Gas
SHUT DOWN THE ENGINE, WAIT FOR ALL MOVING PARTS TO COME TO A COMPLETE STOP, REMOVE
SPARK PLUG WIRE, DISCONNECT THE NEGATIVE BATTERY CABLE, THEN WAIT 5 MINUTES BEFORE
PERFORMING ANY MAINTENANCE PROCEDURE OR INSPECTION ON THE CHIPPER.
FILL THE GAS TANK OUTDOORS OR IN A WELL-VENTILATED AREA, AWAY FROM SPARKS, OPEN FLAMES,
PILOT LIGHTS, HEAT, AND OTHER IGNITION SOURCES.
1. Remove the Gas Fill Cap and fill the Gas Tank with fresh, unleaded gas (with a minimum of 85
Octane) to approximately 1" to 1-1/2" below the top of the fill neck to allow for fuel expansion
(Figure 11). Be careful not to overfill and reinstall the Gas Fill Cap before starting the engine. See
your Engine Owner’s Manual for more detailed information.
NOTE: To refill the gas tank, turn the engine OFF and let the engine cool at least five minutes before
removing the gas fill cap.
18 16.50 PRO DR
®
RAPID-FEED™ CHIPPER
Check the Tire Pressure
Tools Needed:
• Tire Pressure Gauge
• Air Compressor
NOTE: There should be 38 psi. max. in each tire.
1. Remove the Valve Stem Protective Cap (Figure 13) and
check the tire pressure with a tire pressure gauge.
2. If the pressure is too low, add air with an air hose
through the Valve Stem.
3. Replace the Valve Stem Protective Cap.
Valve Stem
Protective Cap
Figure 13
CONTACT US AT www.DRpower.com or CALL TOLL FREE 1-800-DR-OWNER 19
20 16.50 PRO DR
®
RAPID-FEED™ CHIPPER
CHAPTER 4
J
OPERATING YOUR 16.50 PRO DR RAPID-FEED CHIPPER
This chapter covers the procedures for starting and stopping your new 16.50 PRO DR RAPID-FEED
CHIPPER and discusses basic operation features.
• THE DESIGN OF THIS MACHINE IS FOR CHIPPING WOOD. NEVER USE THIS MACHINE FOR ANY
OTHER PURPOSE AS IT COULD CAUSE SERIOUS INJURY.
• CONTACT WITH INTERNAL ROTATING PARTS WILL CAUSE SERIOUS PERSONAL INJURY. NEVER PUT
HANDS, FACE, FEET, OR CLOTHING INTO CHIPPER HOPPER OR DISCHARGE OPENING OR NEAR
THE DISCHARGE AREA AT ANY TIME.
• BEFORE PERFORMING ANY MAINTENANCE PROCEDURE OR INSPECTION, SHUT DOWN THE
ENGINE, WAIT FOR ALL MOVING PARTS TO COME TO A COMPLETE STOP (THE FLYWHEEL WILL
CONTINUE ROTATING FOR A WHILE AFTER THE ENGINE IS SHUT DOWN), DISCONNECT SPARK
PLUG WIRE, KEEPING IT AWAY FROM THE SPARK PLUG TO PREVENT ACCIDENTAL STARTING,
DISCONNECT THE NEGATIVE BATTERY CABLE, THEN WAIT 5 MINUTES BEFORE PROCEEDING. USE
ONLY A WOODEN STICK TO CLEAR
AMMED MATERIAL.
Before Starting the Engine
1. Check the oil level every time you use the 16.50 PRO
DR RAPID-FEED CHIPPER. Add oil if needed (see
Chapter 3 section “Adding Engine Oil and Gasoline”.
2. Check the fuel level. Add fuel as needed (see Chapter 3
section “Adding Engine Oil and Gasoline”.
3. Ensure that the Fuel Shut-Off Valve is in the “ON”
position (Figure 14).
4. Remove any debris buildup from the machine before
every use of the Chipper.
NOTE: Check and re-tighten the Drive Belt, if necessary, after
an initial break-in period of one (1) hour (see Chapter
5 “Maintaining the 16.50 Pro DR Rapid-Feed
Chipper”).
Fuel
Shut-Off
Valve
Figure 14
CONTACT US AT www.DRpower.com or CALL TOLL FREE 1-800-DR-OWNER 21
Operation Notes
A
Figure 15
Top View
Discharge
rea
Operator
Hopper
Operator
Zone
Zone
• Visually check the Chipper Knife for damage before
each use of the machine. See “VISUAL INSPECTION
OF THE CHIPPER KNIFE (before each use)” in Chapter
5 for info on accessing the Chipper Knife.
• At engine start-up, the engine of your DR CHIPPER
operates under no load until approximately 1800 RPM,
at which speed the Centrifugal Clutch engages and
begins driving the Rotor Assembly. Always operate the
Engine at full speed when chipping (3400 +/- 200
RPM).
• Only operate the DR RAPID-FEED CHIPPER from the
Operator Zones shown in Figure 15.
• Keep proper balance and footing while operating the
DR RAPID-FEED CHIPPER.
• ALWAYS stop the engine when leaving the Operating
Zones or when moving the machine.
• Never move the Chipper while the engine is running or
the Flywheel is turning.
Processing Material
• ALWAYS WEAR PROTECTIVE GOGGLES OR SAFETY GLASSES WITH SIDE SHIELDS WHILE CHIPPING
TO PROTECT YOUR EYES FROM POSSIBLE THROWN DEBRIS.
• AVOID WEARING LOOSE CLOTHING OR JEWELRY, WHICH MIGHT CATCH ON MOVING PARTS OR
THE MATERIAL FED INTO THE CHIPPER HOPPER.
• WE RECOMMEND WEARING GLOVES WHILE CHIPPING. BE SURE YOUR GLOVES FIT PROPERLY
AND DO NOT HAVE LOOSE CUFFS OR DRAWSTRINGS.
• WEAR SHOES WITH NON-SLIP TREADS WHEN USING YOUR CHIPPER. IF YOU HAVE SAFETY
SHOES, WE RECOMMEND WEARING THEM. DO NOT USE THE MACHINE WHILE BAREFOOT OR
WEARING OPEN SANDALS.
• WEAR LONG PANTS WHILE OPERATING THE DR RAPID-FEED CHIPPER.
• USE EAR PROTECTORS OR EAR PLUGS RATED FOR AT LEAST 20 DBA TO PROTECT YOUR HEARING.
The Chipper is designed to accept wood only. The Chipper Knife mounted on a revolving flywheel turns
branches fed into the Chipper Hopper into “chips”. The Chipper can chip branches and ranging in size
up to 4-1/2" in diameter. Cut your materials into manageable lengths before feeding them into the
Chipper Hopper.
22 16.50 PRO DR
®
RAPID-FEED™ CHIPPER
THE CHIPPER HOPPER MUST BE SECURELY BOLTED TO YOUR DR RAPID-FEED CHIPPER AND THE
BLOWBACK SHIELD IN PLACE BEFORE USING THE MACHINE!
USE COMMON SENSE WHEN USING THE MACHINE. LEARN TO RECOGNIZE THE CHANGE IN SOUNDS
WHEN OVERLOADED. TURN OFF THE ENGINE IMMEDIATELY IF THE MACHINE BECOMES JAMMED TO
PREVENT DAMAGE TO THE DRIVE SYSTEM.
• Your DR RAPID-FEED CHIPPER can process dry or green wood up to 4.5" in diameter.
• The Chipper will self-feed the wood once it contacts the knife edge so forcing the branches into the
Hopper is not necessary if the knife is sharp.
• Green wood will process quicker and easier than dry wood.
• Softwood processes easier than hardwood.
• Your operator experience will teach you how different types of wood will chip and how fast you can
process them.
• When chipping branches, sometimes a tail will develop at the end of a branch. To avoid this, rotate
the branch while feeding it into the Chipper Hopper.
• Rotating the branch as you feed it into the machine will improve chipping performance.
• Use caution with small diameter green saplings and branches less than 2" in diameter. Chip these
grouped or bundled together to provide support for each other. If the material is 2" or larger, feed
only one at a time into the Chipper Hopper.
• Make sure the DR RAPID-FEED CHIPPER finishes processing material in the Hopper before shutting
the engine off.
• Do not force material into the Chipper. If the machine does not chip well, the Chipper Knife may
need sharpening or replacement, or the gap between the Knife and the Wear Plate needs adjusting.
See “Removing, Replacing and Adjusting the Chipper Knife and Wear Plate” in Chapter 5.
NEVER THROW REMAINING STUBS OR KNOTS INTO THE CHIPPER HOPPER; DAMAGE WILL RESULT.
• Extremely hard knots will not process very well. Push any short stubs that have not self-fed through
the Chipper, with the next branch to be chipped.
• Cut the material to be chipped into manageable lengths of no more than five or six feet long before
chipping them.
• Overloading the Chipper Hopper will cause the rotor speed to decrease. If you hear the engine RPM
decreasing, stop feeding material into the Chipper Hopper until the engine has returned to full
speed.
CONTACT US AT www.DRpower.com or CALL TOLL FREE 1-800-DR-OWNER 23
Starting the Engine (Manual –Starting Chipper)
Figure 16
Throttle
Control
Lever
Choke
Control
Lever
“RUN” “CHOKE”
Slow
1. Ensure that the Fuel Shut-Off Valve is in the “ON”
position (Figure 14).
2. Move the Choke Control Lever to the “CHOKE”
position (Figure 16) (leave in the RUN position if the
engine is already warm).
3. Move the Throttle Control Lever to about half way
between Slow and Fast position (Figure 17).
Fast
Figure 17
Figure 18
24 16.50 PRO DR
On/Off
Toggle Switch
Starter
Cord
®
RAPID-FEED™ CHIPPER
4. Push the On/Off Toggle Switch to “Start” and slowly
pull the Starter Cord until you feel resistance, then pull
quickly (Figure 18). The Cord will recoil back into
position.
5. As the engine warms up, slowly adjust the Choke to
the “Run” position (Figure 16). Wait until the engine
runs smoothly before each Choke adjustment.
6. When the Engine is warmed up and running smoothly
with the Choke in the “RUN” position, move the
Throttle Control Lever to the fast position (rabbit icon)
for chipping.
Starting the Engine (Electric–Starting Chipper)
1. Ensure that the Fuel Shut-Off Valve is in the “ON”
position (Figure 14).
2. Move the Choke Control Lever to the “CHOKE”
position (Figure 19) (leave in the RUN position if the
engine is already warm).
3. Ensure that the Throttle Control Lever is in the slow
position (turtle icon) (Figure 20).
Figure 19
Throttle
Control
Lever
Choke
Control
Lever
“RUN” “CHOKE”
Slow
Fast
4. Insert the Key into the Key Switch and turn the Key to
the “START” position until the engine starts, then
release it (Figure 21). The Key Switch will snap back
to the “RUN” position and the engine will continue to
run.
5. As the engine warms up, slowly adjust the Choke to
the “Run” position. Wait until the engine runs
smoothly before each Choke adjustment. For
chipping, operate the engine with the Throttle in the
fast position (rabbit icon) with the Choke pushed in to
the “RUN” position.
Figure 20
“STOP”
“RUN”
“START”
Key Switch
Figure 21
CONTACT US AT www.DRpower.com or CALL TOLL FREE 1-800-DR-OWNER 25
Stopping the Engine (Manual –Starting Chipper)
,
THE FLYWHEEL WILL STILL ROTATE FOR A WHILE AFTER THE ENGINE IS SHUT OFF. SHUT DOWN
THE ENGINE, WAIT FOR ALL MOVING PARTS TO COME TO A COMPLETE STOP, REMOVE SPARK
PLUG WIRE
THEN WAIT 5 MINUTES BEFORE MOVING OR WORKING ON THE CHIPPER.
NEVER STOP THE ENGINE BY MOVING THE CHOKE LEVER TO THE CHOKE POSITION. THIS COULD
CAUSE AN ENGINE BACKFIRE RESULTING IN ENGINE DAMAGE.
1. Slowly move the Throttle Control Lever all the way to the slow position (turtle icon).
2. Push the On/Off Toggle Switch to the off position to stop the engine.
NOTE: Close the Fuel Shut-Off Valve when transporting or storing the DR RAPID-FEED CHIPPER.
Stopping the Engine (Electric –Starting Chipper)
THE FLYWHEEL WILL STILL ROTATE FOR A WHILE AFTER THE ENGINE IS SHUT OFF. SHUT DOWN
THE ENGINE, WAIT FOR ALL MOVING PARTS TO COME TO A COMPLETE STOP, REMOVE SPARK
PLUG WIRE, DISCONNECT THE NEGATIVE BATTERY CABLE, THEN WAIT 5 MINUTES BEFORE
MOVING OR WORKING ON THE CHIPPER.
NEVER STOP THE ENGINE BY MOVING THE CHOKE LEVER TO THE CHOKE POSITION. THIS COULD
CAUSE AN ENGINE BACKFIRE RESULTING IN ENGINE DAMAGE.
1. Slowly move the Throttle Control Lever all the way to the slow position (turtle icon) and turn the Key
Switch to the “STOP” position.
2. Remove the Key for safety. The Key has a pressure lock that prevents it from vibrating loose during
operation. To remove the Key, push it in and then quickly and firmly pull it out. If the Key becomes
difficult to remove, spray FLUID FILM
®
or a similar non-conductive lubricant into the keyhole.
NOTE: Close the Fuel Shut-Off Valve when transporting or storing the DR RAPID-FEED CHIPPER.
26 16.50 PRO DR
®
RAPID-FEED™ CHIPPER
Adjusting the Angle of the Tongue Weldment
(
The Tongue Weldment can be adjusted to the horizontal
position to enable the Chipper to be towed with a tractor or
it can be adjusted to the vertical position as a Support Leg
to level and stabilize the Chipper when not hitched to a
tractor.
1. Support the front of the Base Frame with a Jack Stand
or Blocks (make sure you are off to the side of the
Tongue Weldment so it can rotate freely).
2. Pull the Hitch Clip from the Pin and remove the Pin
Pin Holes for
Support Leg
Position
Pivot
Support Leg
Position
(Figure 22).
3. Rotate the Tongue Weldment to the vertical (support
leg) position and reinsert the Pin into the Pin Holes for
the Support Leg position.
4. Secure the Pin by inserting the Hitch Clip.
5. Reverse these procedures to Adjust to the Towing
position (non-highway) and your Chipper is now ready
Pin Holes for
Towing Position
Figure 22
Pin and
Hitch Clip
to hitch to your tractor.
AVOID DEATH OR SERIOUS INJURY. DO NOT TOW THIS MACHINE FASTER THAN 10 MPH. THIS
MACHINE IS NOT LEGAL FOR STREET OR HIGHWAY USE UNLESS YOU INSTALL THE ROADTOWING PACKAGE
SEE “CHIPPER ACCESSORIES” IN CHAPTER 7).
Towing
Position
Tongue
Weldment
CONTACT US AT www.DRpower.com or CALL TOLL FREE 1-800-DR-OWNER 27
To Free a Jammed Flywheel
SHUT DOWN THE ENGINE, WAIT FOR ALL MOVING PARTS TO COME TO A COMPLETE STOP,
REMOVE SPARK PLUG WIRE, DISCONNECT THE NEGATIVE BATTERY CABLE, THEN WAIT 5
MINUTES BEFORE MOVING OR WORKING ON THE CHIPPER.
Tools Needed:
• Two 1/2" Wrenches
Disassemble:
1. Disconnect the battery at the negative terminal.
2. Remove any material left in the Chipper Hopper.
NEVER PRY AGAINST THE SCROLL WELDMENT WHEN REMOVING THE DEFLECTOR OR DISCHARGE
CHUTE, OR AT ANY OTHER TIME. THIS WILL CAUSE DAMAGE TO THE MACHINE.
3. Remove the two Bolts and Locknuts that secure the
Discharge
Chute
Scroll
Weldment
Discharge Chute to the Chipper Basic Assembly with
two 1/2" wrenches and then remove the Discharge
Chute (Figure 23).
4. Check to see if the Discharge Chute or Discharge
opening is clogged. If it is, clear it with a branch.
5. With a wooden stick, loosen and remove any material
Bolts and
Locknuts
left in the Chipping Chamber and make sure the
Flywheel turns freely with the stick.
Figure 23
Reassemble:
1. Position the Discharge Chute onto the Chipper Basic Assembly and secure with two Bolts and
Locknuts using two 1/2" wrenches.
2. Reconnect the battery negative terminal cable, the spark plug wire and start the Chipper engine;
allowing the remaining material in the Chipping Chamber to discharge.
3. If the Chipping Chamber doesn’t clear and the flywheel is still jammed, repeat above process.
NOTE: Be certain the Chipping Chamber is clear before trying to process more material into the Chipper
Hopper.
28 16.50 PRO DR
®
RAPID-FEED™ CHIPPER
CHAPTER 5
MAINTAINING THE 16.50 PRO DR RAPID-FEED CHIPPER
This chapter covers regular maintenance procedures that will ensure the best performance and long life
of your DR RAPID-FEED CHIPPER. For engine maintenance, please refer to the Engine Owner’s Manual
that came with your machine. Service intervals listed in the checklist below supersede those listed in the
Engine Owner’s Manual.
Maintenance Kits and Accessories are available through our website at www.DRpower.com.
SHUT DOWN THE ENGINE, WAIT FOR ALL MOVING PARTS TO COME TO A COMPLETE STOP, REMOVE
SPARK PLUG WIRE, DISCONNECT THE NEGATIVE BATTERY CABLE, THEN WAIT 5 MINUTES BEFORE
PERFORMING MAINTENANCE ON THE CHIPPER.
Regular Maintenance Check List
NOTE: Consider that the service intervals shown are the maximum under normal operating conditions.
Increase frequencies under extremely dirty or dusty conditions.
Procedure
Check Engine Oil Level
Check General Equipment Condition
Check that the Flywheel turns freely (with a long stick only)
Visually inspect Knife for damage
Check Knife and Wear Plate for Sharpness
Check Knife and Wear Plate Attachment Screws
Check Flywheel Bearing Collar Set Screws
Check Knife to Wear Plate Gap
Lubricate Flywheel Bearings
Check Belt Tension and Condition
Clean Engine Exterior and Cooling Fins
Check the Battery Voltage (electric start only)
Check the Tire Pressure
Change Engine Oil
Inspect or replace Drive Belt
Inspect or replace Spark Plug
Inspect or replace Air Filter and Precleaner
CONTACT US AT www.DRpower.com or CALL TOLL FREE 1-800-DR-OWNER 29
Before Each Use Every 8-10
Hours
▲
▲
▲
▲
▲
▲
▲
▲
▲
st
1
time 1 hour
▲
▲
▲
▲
st
1
time 5 hours
▲
▲
▲
▲
Every 40
Hours
Grease Fittings
Your RAPID-FEED CHIPPER was greased at the Factory. The operator needs to periodically lubricate the
two Bearings of the Chipper Assembly.
SHUT DOWN THE ENGINE, WAIT FOR ALL MOVING PARTS TO COME TO A COMPLETE STOP, REMOVE
SPARK PLUG WIRE, DISCONNECT THE NEGATIVE BATTERY CABLE, THEN WAIT 5 MINUTES BEFORE
PERFORMING ANY MAINTENANCE PROCEDURE OR INSPECTION ON THE CHIPPER.
Tools and Supplies needed:
• Flexible hose grease gun
• Lithium grease
• Clean cloth
Bearing
Grease
Fitting
Set
Screw
• 5/32" Allen Wrench
• Loctite
®
243
1. Remove the Belt Cover (see “Removing, Replacing and
Adjusting the Drive Belt” in this Chapter).
2. Wipe all dirt, etc., from the grease fittings with a clean
cloth (Figure 24).
Front Chipper Bearing
Set
Screw
Bearing
Grease
Fitting
Rear Chipper Bearing (under Belt Cover)
Figure 24
OVER LUBRICATION CAN DAMAGE THE BEARINGS.
3. Apply no more than three pumps of quality general-
purpose lithium grease with a hand-pumped grease
gun to each Bearing Grease Fitting, one on either side
of the Chipper Assembly.
4. Check the Set Screws for tightness. If they are not tight
®
they should be removed, apply Loctite
to the threads,
then reinstall and tighten the Set Screws.
5. Replace the Belt Guard.
30 16.50 PRO DR
®
RAPID-FEED™ CHIPPER
Removing and Replacing the Engine Oil
SHUT DOWN THE ENGINE, WAIT FOR ALL MOVING PARTS TO COME TO A COMPLETE STOP, REMOVE
SPARK PLUG WIRE, DISCONNECT THE NEGATIVE BATTERY CABLE, THEN WAIT 5 MINUTES BEFORE
PERFORMING ANY MAINTENANCE PROCEDURE OR INSPECTION ON THE CHIPPER.
Tools and Supplies Needed
• SAE 30 HD Oil
• Oil Filter Wrench
• 5/8" Wrench
• Suitable container for used oil
• Rags
NOTE: Drain the oil when the engine is warm. Warm oil
drains quicker and more completely.
Dipstick
1. Position a suitable oil receptacle under the engine oil
Drain Plug and remove the engine oil Fill Cap.
2. Remove the Oil Drain Plug from the Oil Drain Elbow
with a 5/8" wrench (Figure 25). Allow the used oil to
drain completely, and then replace the Oil Drain Plug.
Oil Drain
Elbow
and Plug
3. Replace the engine oil using SAE 30 HD oil (see
“Adding Engine Oil and Gasoline” in Chapter 3 for
Figure 25
instructions on adding oil).
4. Reattach the spark plug wire.
NOTE: Be sure to use environmentally safe disposal
procedures in the disposing of the used oil.
Removing, Replacing and Adjusting the Drive Belt
SHUT DOWN THE ENGINE, WAIT FOR ALL MOVING PARTS TO COME TO A COMPLETE STOP, REMOVE
SPARK PLUG WIRE, DISCONNECT THE NEGATIVE BATTERY CABLE, THEN WAIT 5 MINUTES BEFORE
PERFORMING ANY MAINTENANCE PROCEDURE OR INSPECTION ON THE CHIPPER.
USE ONLY DR BELTS ON YOUR MACHINE. THE BELTS HAVE BEEN THOROUGHLY TESTED AND
PROVEN FOR MANY HOURS OF USE.
CONTACT US AT www.DRpower.com or CALL TOLL FREE 1-800-DR-OWNER 31
Tools Needed:
• Tape Measure
• Two 1/2" Wrenches
• 7/16" Wrench
• Straightedge
Belt Guard
Hardware
Figure 26
Belt Guard
Hardware
Belt
Guard
Removing the Belt
1. Remove the eight Bolts, Lock Washers and Flat
Washers from the Belt Guard using a 1/2" Wrench
(Figures 26 and 27).
2. Remove the Belt Guard.
Figure 27
Locknut
Figure 28
32 16.50 PRO DR
Belt Guard
Bracket
®
RAPID-FEED™ CHIPPER
3. Remove the Locknut and Belt Guard Bracket (Figure
28).
4. Loosen the four Engine Bolts (two on the left side and
s
two on the right side) using two 1/2" Wrenches, one
on the Bolt and one on the Locknut underneath the
Base (Figure 29).
5. Loosen the Adjusting nut on the Belt Tensioner using
a 1/2" Wrench and slide the Engine away from you
until the belt is loose enough to remove.
Belt
Engine
Bolts
Clutch
6. Remove the Belt from the Clutch and Sheave (Figure
30).
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” to enable you to install a new
Belt.
1. Install the Belt onto the Sheave and Clutch.
2. Tighten the Adjusting Nut on the Belt Tensioner using
a 1/2" Wrench to take up the slack in the Belt, but not
too tight at this point.
3. Check the alignment of the Clutch with the Sheave by
placing a Straightedge across the Sheave side face
(closest to the Chipper Assembly) and resting the
other end on top of the Clutch Pulley (Figure 30).
4. Check the gap from the Straightedge to the Belt near
the Sheave and near the Clutch. If the gap is the same
then no adjustment is needed. If the gap is not the
same then adjustment is necessary, correct the
alignment as follows:
a) Loosen the Sheave Bushing Bolt with a 7/16"
Wrench (Figure 31).
b) Remove the three Bushing Retaining Bolts using a
7/16" Wrench.
c) Reinstall the three Bolts in the unused Threaded
Holes adjacent to the three Bushing Retaining Bolt
holes.
Belt Tensioner
Adjusting Nut
Figure 29
Straightedge
On side face
of Sheave
Straightedge
On Top of
Clutch Pulley
Figure 30
Sheave
Bushing
Figure 31
Sheave
Flywheel
Shaft
Gap
Gap
Clutch
Sheave
Bushing
Bolt
Bushing
Saw Slot
Sheave
Belt
Bushing
Retaining
Bolt
d) Slowly tighten the Bolts evenly and alternately (1/4 to 1/2 turn) starting with the Bolt farthest from
the Bushing Saw Slot (this acts as a Hub puller) until the Bushing releases from the Flywheel
Shaft.
e) When the Sheave is loose, remove the three Bolts and reinsert them into the original Retaining
Bolt holes.
f) Using a Straightedge, align the Clutch and Sheave by moving the Sheave in or out on the Flywheel
Shaft. Do not make the adjustment by attempting to move the Clutch on the Engine Shaft.
CONTACT US AT www.DRpower.com or CALL TOLL FREE 1-800-DR-OWNER 33
NOTE: Prior to retightening the Bushing Retaining Bolts, move the Sheave out approximately 1/8" from the
straightedge to allow for compression of the Bushing during the tightening process.
g) Slowly tighten the Bushing Retaining Bolts evenly and alternately (1/4 to 1/2 turn) starting with the
Bolt farthest from the Bushing Saw Slot.
h) Recheck the alignment after tightening the Bolts, and then retighten the Sheave Bushing Bolt.
NOTE: Make sure that the Belt or Sheave is not hitting the Hopper.
5. Tighten the Engine Bolts (Figure 29)
6. Place a Straightedge on the Belt (over the Clutch and
Sheave) and push down firmly on the Belt to measure
Straightedge
the deflection from the Straightedge to the Belt with a
tape measure (Figure 32).
7. The measurement should be approximately 3/8".
3/8"
8. If the measurement is not correct, loosen the Engine
Bolts and tighten or loosen the Adjusting Nut as
Belt
Clutch
(mounted on
Engine
Crankshaft)
Figure 32
needed (Figure 29).
9. Repeat steps 5 through 8 until the proper Belt tension
is achieved.
10. When the Belt is properly tensioned, double check that
the four Engine Bolts are completely tightened.
11. Reinstall the Belt Guard Bracket and the Belt Guard.
12. Reinstall the eight Bolts, Lock Washers and Flat Washers using a 1/2" Wrench (Figures 26 and 27).
NOTE: Check and re-tighten the Drive Belt, if necessary, after an initial break-in period of one (1) hour.
Removing, Replacing and Adjusting the Chipper Knife and Wear Plate
SHUT DOWN THE ENGINE, WAIT FOR ALL MOVING PARTS TO COME TO A COMPLETE STOP, REMOVE
SPARK PLUG WIRE, DISCONNECT THE NEGATIVE BATTERY CABLE, THEN WAIT 5 MINUTES BEFORE
PERFORMING ANY MAINTENANCE PROCEDURE OR INSPECTION ON THE CHIPPER.
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 RAPIDFEED CHIPPER.
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 RAPID-FEED CHIPPER.
34 16.50 PRO DR
®
RAPID-FEED™ CHIPPER
Inspecting the Chipper Knife and Wear Plate
Routine inspection of the Chipper Knife and Wear Plate will ensure that your DR 16.50 FTP PRO Rapid
Feed Chipper is operating at full efficiency (see “Regular Maintenance Checklist” at the beginning of this
Chapter). Operating with a worn or damaged Chipper Knife or Wear Plate will cause extreme stress and
vibration to the machine and make chipping difficult for the operator.
THE HOPPER SHOULD BE SUPPORTED WHEN THE MOUNTING HARDWARE IS REMOVED.
REMOVAL OF THE HOPPER IS DIFFICULT FOR ONE PERSON. TWO PEOPLE ARE NEEDED FOR THE
VISUAL INSPECTION OF THE CHIPPER KNIFE (before each use)
Tools Needed:
• 5/16" Wrench
1. Remove the four Screws that secure the Front Access
Cover with a 5/16" wrench and remove the Access
Cover (Figure 33).
2. Rotate the Flywheel with a long stick until the Knife is
visible.
3. If the Knife has visible nicks or damage it must be
sharpened or replaced (see “Removing and Replacing
the Chipper Knife” in this chapter).
4. If the Knife does not appear to have any damage,
replace the Access Cover and secure with four Screws
using a 5/16" wrench.
Figure 33
VISUAL INSPECTION OF THE CHIPPER KNIFE AND WEAR PLATE (every 8-10 hours)
Tools Needed:
• Two 1/2" Wrenches
1. Have someone support the Hopper as you use two
1/2" wrenches to remove the six Bolts, Washers and
Locknuts that support the Hopper to the Chipper
Bolt, Washer
and Locknut
(6 places)
Assembly (Figure 34).
Screws
Front Access
Cover
Hopper
2. Remove the Hopper from the Chipper Assembly.
3. Use a stick to rotate the Flywheel until the Knife is next
to the Wear Plate.
CONTACT US AT www.DRpower.com or CALL TOLL FREE 1-800-DR-OWNER 35
Chipper
Assembly
Figure 34
Chipper
Knife
4. Closely inspect the Chipper Knife and Wear Plate for
nicks or dull (rounded) edges (Figure 35).
5. If necessary, repair or replace the Chipper Knife and/or
Wear Plate per the following procedures. If the Knife
and Wear plate do not need maintenance or
adjustment, replace the Hopper.
Wear
Plate
Figure 35
Self Tapping
Screws
Figure 36
Rear Knife Access
Cover (one on the
front side also)
Removing and Replacing the Chipper Knife
BE CAREFUL AND WEAR GLOVES WHEN WORKING NEAR
THE CHIPPER KNIFE. THE KNIFE EDGE CAN CUT YOU IF
YOU COME IN CONTACT WITH IT.
Tools Needed:
• 5/16" Wrench
• 9/16" Socket
• 7/32" Allen wrench
• Awl or Sharp Tool
• Gloves
1. Remove the Belt Guard (see “Removing and Replacing
the Drive Belt” in this Chapter to remove the Belt
Guard).
2. Using a 5/16” Wrench, remove the Self -Tapping
Screws and remove both Knife Access Covers from the
front and back of the Chipper Assembly (Figure 36).
Flywheel
Slot
Countersunk
Allen Screws and
Locknuts
Figure 37
36 16.50 PRO DR
Chipper Knife
(sharp edge
facing up and
towards you)
®
RAPID-FEED™ CHIPPER
3. Rotate the Flywheel using a stick until the three
countersunk Allen Screws and Lock Nuts attaching the
Knife to the Flywheel are visible through the Access
Openings.
4. Clean out the heads of the Allen Screws with an Awl or
Sharp Tool.
5. Insert a 7/32” Allen Wrench into the head of a screw
(Figure 37).
6. While holding the Allen Wrench, remove the Lock Nut
using a 9/16" socket.
7. Repeat Steps 5 and 6 for the remaining two Allen
Screws.
8. Remove the dull or damaged Knife and visually inspect the Flywheel Slot and Knife mounting area
,
and be sure they are clean and that the replacement Knife will be able to mount flush against the
Flywheel.
IF THE FLYWHEEL SURFACE IS NOT CLEANED PROPERLY AND THE CHIPPER KNIFE IS NOT MOUNTED
FLUSH ON THE FLYWHEEL
THE KNIFE COULD CRACK WHEN THE HARDWARE IS TIGHTENED.
9. Install a new or sharpened Knife as shown with the Knife edge facing up and towards you and finger
tighten the Allen screws and Lock Nuts (use the new hardware supplied with a new Knife kit) to hold
the Knife to the Flywheel.
10. Using a 7/32" Allen wrench and a 9/16" socket, tighten the center Screw and Locknut, then tighten
the outer Screw and Locknut, and finally tighten the inner Screw and Locknut.
11. Double-check that all three Locknuts on the Allen Screws are tight.
12. Reinstall the two Access Covers.
13. Replace the Belt Guard.
14. Check and if needed adjust the gap between the Knife and Wear Plate (See “Checking and Adjusting
the Knife to Wear Plate Gap” in this Chapter).
Removing and Replacing the Wear Plate
Tools Needed:
• 7/16" Wrench
1. Remove the Hopper (See “Inspecting the Chipper
Knife and Wear Plate” in this Chapter)
2. Remove the three Locknuts and Carriage Bolts that
attach the Wear Plate to the Chipper Assembly with a
7/16" wrench and then remove the Wear Plate (Figure
38).
3. Install the new Wear Plate and secure with the three
Carriage Bolts and Locknuts.
NOTE: The Gap between the Knife and Wear Plate must be
adjusted whenever the Wear Plate is removed. See the
following instructions.
Chipper
Knife
Carriage Bolt
and Locknut
Figure 38
Wear
Plate
CONTACT US AT www.DRpower.com or CALL TOLL FREE 1-800-DR-OWNER 37
Checking and Adjusting the Knife to Wear Plate Gap
When you replace the Knife you must check and set the clearance between the Knife and Wear Plate. Set
this clearance or gap to 1/16" by using the Gap Tool that is supplied with the Chipper and with a new
Knife kit. If the gap between the Wear Plate and the Knife is not set correctly, you will have excessive
vibration when chipping and the Knife will seem to be dull. The Wear Plate should have a square edge
and be free of dents or gouges. The Wear Plate can be hand sharpened (see steps below). Be careful
not to overheat it during the sharpening process. This will change the characteristics of the steel and you
will then have to replace the Wear Plate.
SHUT DOWN THE ENGINE, WAIT FOR ALL MOVING PARTS TO COME TO A COMPLETE STOP,
REMOVE SPARK PLUG WIRE, DISCONNECT THE NEGATIVE BATTERY CABLE, THEN WAIT 5 MINUTES
BEFORE PERFORMING ANY MAINTENANCE PROCEDURE OR INSPECTION ON THE CHIPPER.
Tools Needed:
• Gap Gauge (provided with Chipper)
Checking the Knife to Wear Plate Gap
1. Remove the Hopper (See “Inspecting the Chipper
Knife and Wear Plate” in this Chapter).
Knife Gap
Gauge
Figure 39
Wear
Plate
Knife
2. Use a stick to rotate the Flywheel until the Knife can be
positioned next to the Wear Plate.
3. Slide the Knife Gauge in between the Knife and Wear
Plate to check the clearance (Figure 39).
• If the Knife Gauge slides freely, with no
resistance and extra space, the Wear plate must
be adjusted.
• If the Knife Gauge will not slide down between
the Knife and Wear Plate, the Wear Plate must
be adjusted.
• If the Knife Gauge slides in between the Knife
and Wear Plate with some resistance felt against
them both then the Wear plate is properly
adjusted.
4. Install the Hopper when finished.
38 16.50 PRO DR
®
RAPID-FEED™ CHIPPER
Adjusting the Knife to Wear Plate Gap
Tools Needed:
• 7/16" wrench
• Gap Gauge (provided with Chipper)
1. To adjust the Wear Plate Gap, loosen the three Nuts
on the Carriage Bolts with a 7/16" wrench just enough
so the Wear Plate will move but still have a slight
resistance. Now you can slide the Wear Plate up or
down (in or out) to achieve the correct gap setting
(Figure 40).
NOTE: See Figure 41 for a more detailed look at the
relationship of the Knife to Wear Plate.
2. Take the Gap Gauge and slide it between the Knife and
Wear Plate. Adjust the Wear Plate against the Knife
Gauge and tighten the Locknuts.
3. Check the adjustment as described in the “Checking
the Gap” in the previous section.
Carriage Bolt
and Locknut
Figure 40
Wear
Plate
Chipper
Knife
Flywheel
4. Position the Chipper Hopper into the Hopper Bracket
and secure with the six Bolts, Washers and Locknuts.
5. Re-connect the negative battery terminal wire (electric
start only) and the spark plug wire.
Wear
Plate
1/16" Gap
(thickness of
Gap Gauge)
Figure 41
AFTER ANY KNIFE OR WEAR PLATE MAINTENANCE OR ADJUSTMENT, ROTATE THE CHIPPER
FLYWHEEL BY USING A WOODEN STICK AND WATCH AND LISTEN CAREFULLY FOR ANY UNUSUAL
NOISES, CLICKING OR VIBRATION. IF YOU DETECT ANY OF THESE, INSPECT THE MACHINE FOR
DAMAGE, OR ANY LOOSE PARTS. REPAIR OR REPLACE ANY DAMAGED PARTS AND TIGHTEN ANY
-
Chipper Knife Sharpening
• You should never attempt to sharpen the Chipper Knife
freehand.
Chipper
Knife
• It is extremely important to consistently maintain the 40-
degree angle for proper performance (Figure 42).
• Excessive heat generated during the sharpening process
will damage Knives and weaken the metal. Be sure not to
overheat the Knife during sharpening because it will
shorten the life of the Knife.
CONTACT US AT www.DRpower.com or CALL TOLL FREE 1-800-DR-OWNER 39
Figure 42
Top Edge
Short Side
Short Side
New Knife
Top Edge
Sharpened Knife
Figure 43
• Take the Chipper Knife to a machine shop for proper sharpening.
• How many times a Knife can be sharpened is determined by how much material needs to be taken
off to sharpen or to compensate for dents or gouges.
• A new Chipper Knife has 1.579" measurement between the short side bevel edge and the Knife Top
Edge (Figure 43 “New Knife”).
• The knife should never be sharpened to the extent that more than 3/32" is taken off this
measurement.
• Once this measurement is below 1.485" (see Figure 43 “Sharpened Knife”), or if you are unable to
remove dents or gouges with these guidelines, replace the Knife.
File this
edge flat
Wear Plate Sharpening
The Wear Plate edges become rounded and chipped during
use and must be squared off to ensure efficient operation.
Tools Needed:
• Flat File
Wear
Plate
1. Secure the Wear Plate in a vise.
2. File the edge of the Wear Plate to take out any nicks
Front View
Side View
and to square rounded edges (Figure 44).
NOTE: If the Wear Plate is filed enough times that the proper
Figure 44
gap between the Knife and Wear Plate can not be set with the
Gap Gauge, You will need to replace the Wear Plate.
40 16.50 PRO DR
®
RAPID-FEED™ CHIPPER
Removing and Replacing the Wheels
The Wheels on the DR 16.50 FTP PRO Rapid Feed Chipper are pneumatic and have pressed in Bearings
for easy transport. With use, tires or Bearings may need replacing. The following procedures will
explain the replacement procedures.
SHUT DOWN THE ENGINE, WAIT FOR ALL MOVING PARTS TO COME TO A COMPLETE STOP,
REMOVE SPARK PLUG WIRE, DISCONNECT THE NEGATIVE BATTERY CABLE, THEN WAIT 5 MINUTES
BEFORE PERFORMING ANY MAINTENANCE PROCEDURE OR INSPECTION ON THE CHIPPER.
Tools Needed:
• 5/32" allen wrench
• Fine Tooth File
• Jack
1. Jack up the side of the Chipper just until the
Set Screw
Pneumatic Wheel is off the ground.
2. Loosen the Set Screw with a 5/32" allen wrench and
remove the Locking Collar (Figure 45).
3. Remove the Pneumatic Wheel from the Axle.
NOTE: There is a spacer behind the wheel that must remain
on the Axle when the Pneumatic Wheel is replaced.
NOTE: File off the Set Screw marks in the Axle if Wheel will
Locking
Collar
Axle
Figure 45
Pneumatic
Wheel
not slide on.
4. Install the Pneumatic Wheel onto the Axle and against
the Spacer with the Valve side out.
5. Install the Locking Collar onto the Axle against the Wheel and tighten the Set Screw with a 5/32"
Allen Wrench.
6. Check the Pneumatic Wheels for proper air pressure of 38 psi maximum in each tire (see Chapter
3).
Removing and Replacing the Clutch
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 it if
necessary.
CONTACT US AT www.DRpower.com or CALL TOLL FREE 1-800-DR-OWNER 41
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 RAPID-FEED CHIPPER Engine at less than full RPM when chipping.
NOTE: At engine start-up, the engine of your chipper operates under no load until approximately 1800 RPM,
at which speed the centrifugal clutch engages and begins driving the rotor. Proper engine speed for
chipping is 3400-RPM +/- 200 RPM.
SHUT DOWN THE ENGINE, WAIT FOR ALL MOVING PARTS TO COME TO A COMPLETE STOP,
REMOVE SPARK PLUG WIRE, DISCONNECT THE NEGATIVE BATTERY CABLE, THEN WAIT 5 MINUTES
BEFORE PERFORMING ANY MAINTENANCE PROCEDURE OR INSPECTION ON THE CHIPPER.
• 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 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 CLUTCH ASSEMBLY. ALWAYS REPLACE SHOES AND SPRINGS IN
SETS. WHENEVER SHOES ARE CHANGED
Installing a new Clutch Assembly
REPLACE ALL SPRINGS.
NOTE: If a Clutch part malfunctions, it could jeopardize the integrity of other Clutch components. If you have
problems with the Clutch, a Clutch Kit is available, but we recommend replacing your Clutch as a
complete assembly.
42 16.50 PRO DR
®
RAPID-FEED™ CHIPPER
Tools and Supplies Needed:
• 9/16" Wrench
• Anti-seize compound
1. Remove the Belt Guard and Belt (see “Removing and
Replacing the Drive Belt” in this Chapter).
2. With a 9/16" wrench, remove the Clutch Bolt, Lock
Washer and Washer and then slide the Clutch from the
Crankshaft (figure 46).
3. Remove the Key from the keyway in the Engine
Crankshaft and set it aside.
4. Clean the engine crankshaft and remove any burrs,
then apply Anti-seize compound to the Crankshaft.
CLUTCH
REMOVED
Key
Keyway
Engine
Crankshaft
5. Install the Key in the keyway of the new Clutch hub,
align the Key with the slot in the Engine Crankshaft,
and then slide the new Clutch Assembly onto the
Bolt, Lock
Washer and
Flat Washer
crankshaft followed by the Washer, Lock Washer and
Clutch Bolt. Tighten the Bolt securely with a 9/16"
wrench.
Figure 46
6. Reinstall the Drive Belt and set the Drive Belt tension and alignment (see “Removing and Replacing
the Drive Belt” in this Chapter).
7. Reinstall the Belt Guard (see “Removing and Replacing the Drive Belt” in this Chapter).
Battery Care (electric start only)
Proper care can extend the life of a battery. Follow these recommendations to ensure your battery’s best
performance and long life:
• Do not allow the battery charge to get too low. If the machine is not used, charge the battery every 4
– 6 weeks. Operate the engine for at least 45 minutes to maintain proper battery charge.
• Store an unused battery in a dry area that does not freeze.
• Do not charge an already charged battery. In theory, you cannot overcharge our battery with a trickle
charger; however, when a battery is fully charged and the charger is still on, it generates heat that
could be harmful to the battery. A fully charged battery will read 12V-13.2V with a voltmeter.
Clutch
• Do not continue to crank your engine when the battery charge is low.
Charging the Battery
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.
• At 1 amp, the battery may need to be charged for as long as 48 hours.
• At 2 amps, the battery may need to be charged for as long as 24 hours.
CONTACT US AT www.DRpower.com or CALL TOLL FREE 1-800-DR-OWNER 43
To connect a battery charger to your DR RAPID-FEED CHIPPER, follow the steps listed below.
1. Attach the black (-) battery charger wire to the battery negative (-) terminal, and attach the red (+)
battery charger wire to the battery positive (+) terminal.
2. Plug the battery charger into an outlet.
WHEN YOU ARE FINISHED CHARGING THE BATTERY, DISCONNECT THE CHARGER FROM THE
OUTLET FIRST
, THEN DISCONNECT THE BATTERY CHARGER WIRES FROM THE BATTERY. IF YOU
LEAVE THE BATTERY CHARGER WIRES CONNECTED TO THE BATTERY, THE BATTERY WILL
Recycling a Used Battery
PLEASE DISPOSE OF USED BATTERIES RESPONSIBLY, ACCORDING TO YOUR LOCAL HAZARDOUS
MATERIALS REGULATIONS. NEVER THROW AWAY USED BATTERIES IN YOUR HOUSEHOLD TRASH.
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). Once there, click
the Municipal HHW link under Hazardous Household Waste, and enter your zip code. The site lists
recycling centers located near you.
For a fee, you can recycle your batteries with the International Metals Reclamation Company. Visit them
at www.inmetco.com and click Services, then click Battery Recycling; or contact them at:
INMETCO
PO Box 720
245 Portersville Road
Ellwood City, PA 16117
(724) 758-2800; fax (724) 758-2845
To learn more about hazardous waste recycling, visit the Website for Battery Council International
(www.batterycouncil.org) or for the Environmental Protection Agency (www.epa.gov).
44 16.50 PRO DR
®
RAPID-FEED™ CHIPPER
End of Season and Storage
• SHUT DOWN THE ENGINE, WAIT FOR ALL MOVING PARTS TO COME TO A COMPLETE STOP,
REMOVE SPARK PLUG WIRE, DISCONNECT THE NEGATIVE BATTERY CABLE, THEN WAIT 5 MINUTES
BEFORE PERFORMING ANY MAINTENANCE PROCEDURE OR INSPECTION ON THE CHIPPER.
• NEVER STORE THE DR RAPID-FEED 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.
• WHEN NOT IN USE, YOUR DR RAPID-FEED CHIPPER SHOULD BE STORED OUT OF THE REACH OF
CHILDREN.
NOTE: Please refer to the Engine Owner's Manual for engine-specific procedures.
• Change the oil (and oil filter, if applicable).
• If your DR RAPID-FEED CHIPPER will be idle for more than 30 days, we recommend using a gas
stabilizer. This will prevent sediment from gumming up the carburetor. If there is dirt or moisture
in the gas or tank, remove it by draining the tank. Completely fill the tank with fresh, unleaded gas
and add the appropriate amount of stabilizer or gasoline additive. Run the engine for a short time to
allow the additive to circulate. Close the fuel Shut-Off Valve to prevent carburetor overflow and
leakage.
• Remove the spark plug and pour about 1 ounce of motor oil into the cylinder hole. Reinstall the plug
and engage the electric starter for a few seconds (for manual start pull on the starter cord a few
times). This will coat the pistons and seat the valves to prevent moisture buildup.
• Clean or replace the air filter(s).
• Lubricate all grease fittings.
• Clean any dirt and debris from the cylinder head cooling fins, blower housing, debris screen and
muffler area of the engine.
• If your engine has a fuel filter, replace it.
• Check the Drive Belt for wear.
• Check the Chipper Knife and Wear Plate for nicks and wear.
• For electric start models remove the battery or store your DR RAPID-FEED CHIPPER in a dry
environment where the temperature is between –10° F (–23° C) and +85° F (+23° C). Make sure the
storage temperatures will never be outside these limits.
• Clean any debris from the Hopper and Discharge Chute.
CONTACT US AT www.DRpower.com or CALL TOLL FREE 1-800-DR-OWNER 45
46 16.50 PRO DR
®
RAPID-FEED™ CHIPPER
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 DR
Power Equipment for support.
SHUT DOWN THE ENGINE, WAIT FOR ALL MOVING PARTS TO COME TO A COMPLETE STOP,
REMOVE SPARK PLUG WIRE, DISCONNECT THE NEGATIVE BATTERY CABLE, THEN WAIT 5 MINUTES
BEFORE PERFORMING ANY MAINTENANCE PROCEDURE OR INSPECTION ON THE CHIPPER..
Troubleshooting Table
SYMPTOM POSSIBLE CAUSE
The engine won’t start
using electric-start.
(Please refer to the
Engine Owner’s
manual for enginespecific procedures.)
⇒ Is the Fuel Shut-Off Valve in the ON position?
⇒ Is the spark plug wire attached?
⇒ Have you checked all the items under the section called Electric
Starting in Chapter 4?
⇒ Check the wire connections, especially the large black ground wire
where it connects to the battery and where it connects to the engine.
⇒ Check the wire connections to the solenoid. Disconnect the black
battery ground wire first to avoid sparks. Check to be sure that all of
the connections are clean and tight. Reconnect the battery ground
wire.
⇒ Check the ground connection on the solenoid where it’s bolted to the
frame. Using a wrench or socket, tighten the bolts to ensure a good
connection to the frame.
⇒ Is your battery charged? Check the voltage yourself or at a service
station. If it’s low, charge it with a 12-volt, 1 to 2 Amp trickle charger.
If you don’t use your Chipper for at least 45 minutes at a time, the
battery may need to be periodically charged. See the Battery Care
section in Chapter 5.
⇒ If your battery is charged and your DR RAPID-FEED CHIPPER still
won’t start, contact us at www.DRpower.com or call 1(800) DR-
OWNER (376-9637) for assistance.
CONTACT US AT www.DRpower.com or CALL TOLL FREE 1-800-DR-OWNER 47
SHUT DOWN THE ENGINE, WAIT FOR ALL MOVING PARTS TO COME TO A COMPLETE STOP,
REMOVE SPARK PLUG WIRE, DISCONNECT THE NEGATIVE BATTERY CABLE, THEN WAIT 5 MINUTES
BEFORE PERFORMING ANY MAINTENANCE PROCEDURE OR INSPECTION ON THE CHIPPER..
Troubleshooting Table (continued)
SYMPTOM POSSIBLE CAUSE
The engine lacks
power or is not
running smoothly.
(Please refer to the
Engine Owner’s
Manual for enginespecific procedures.)
⇒ Check the Throttle Lever travel and adjustment. Is the Throttle Lever
in the Run position?
⇒ Is the Choke lever pushed all the way over to the RUN position? See
Chapter 4.
⇒ 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 is fouled or cracked, change it. If it is oily,
leave it out, hold a rag over the spark plug hole and engage the electric
starter for a few seconds 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’s old, change it. Use a
fuel stabilizer if you keep gas longer than two weeks or so.
⇒ Does your engine have the right amount of clean oil? If it’s dirty,
change it following the procedure in Chapter 5.
⇒ If your engine still lacks power, contact us at www.DRpower.com or
call 1(800) DR-OWNER (376-9637) for assistance.
Engine smokes.
Chipping action seems
too slow or flywheel
stalls.
48 16.50 PRO DR
⇒ 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’re
dirty.
⇒ If the engine still smokes, contact us at www.DRpower.com or call
1(800) DR-OWNER (376-9637) for assistance.
⇒ The engine speed is too slow causing the belt to slip. Run the engine
at full throttle.
⇒ Check for loose or damaged Drive Belt; tighten or replace. See
Chapter 5.
⇒ Check for a dull or damaged Knife; sharpen or replace the Knife. See
Chapter 5.
®
RAPID-FEED™ CHIPPER
SHUT DOWN THE ENGINE, WAIT FOR ALL MOVING PARTS TO COME TO A COMPLETE STOP,
REMOVE SPARK PLUG WIRE, DISCONNECT THE NEGATIVE BATTERY CABLE, THEN WAIT 5 MINUTES
BEFORE PERFORMING ANY MAINTENANCE PROCEDURE OR INSPECTION ON THE CHIPPER..
Troubleshooting Table (continued)
SYMPTOM POSSIBLE CAUSE
The belt frays or rolls
over the pulley.
- Clutch overheats.
- Belt burns.
-
Flywheel won’t turn.
The machine has
excessive vibration.
⇒ The rotor Drive Pulley groove may be nicked. Check the Drive Belt for
wear and hard spots. File off any nicks on the pulley.
⇒ The Drive Belt may be stretched; replace it. See Chapter 5.
⇒ The Pulleys may be misaligned. See Chapter 5.
⇒ Immediately stop the engine and disconnect the spark plug wire.
⇒ Turn the Flywheel with a wooden stick to be sure it turns freely.
⇒ Check for a loose Drive Belt. See Chapter 5.
⇒ Remove any built-up debris from the Chipper Hopper Inlet and
Discharge Chute.
⇒ Check for a dull or damaged Knife; sharpen or replace the Knife. See
Chapter 5.
⇒ The Knife is not properly seated on the flywheel. Loosen the Knife
mounting screws, reset the Knife and tighten the screws. Also, check
the Knife to Wear Plate Gap. See Chapter 5.
⇒ 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 seems to vibrate
excessively and
“hammers” my
hands.
Chipper Knife is
hitting the Wear
Plate.
Engine runs but the
flywheel doesn’t
rotate.
⇒ The Knife is dull; sharpen or replace it. See Chapter 5.
⇒ The gap between the Knife and Wear Plate is too great; adjust the Gap.
See Chapter 5.
⇒ Check Engine rpms; run Engine at full throttle when chipping.
⇒ The gap between the Knife and the Wear Plate is set incorrectly; adjust
the Knife to Wear Plate Gap. See Chapter 5.
⇒ The inner Shoes of the Clutch are worn. Replace worn or broken
Clutch parts. See Chapter 5.
⇒ Loose Drive Belt; adjust the Drive Belt tension. See Chapter 5.
⇒ Remove any built-up debris from the Chipper Hopper Inlet and
Discharge Chute.
CONTACT US AT www.DRpower.com or CALL TOLL FREE 1-800-DR-OWNER 49
SHUT DOWN THE ENGINE, WAIT FOR ALL MOVING PARTS TO COME TO A COMPLETE STOP,
REMOVE SPARK PLUG WIRE, DISCONNECT THE NEGATIVE BATTERY CABLE, THEN WAIT 5 MINUTES
BEFORE PERFORMING ANY MAINTENANCE PROCEDURE OR INSPECTION ON THE CHIPPER..
Troubleshooting Table (continued)
SYMPTOM POSSIBLE CAUSE
The machine’s wheels
track left or right
while being towed.
⇒ Check the tire pressure. There should be 38 psi in each tire. There
should be 60 psi in each tire if you have the road towing option.
50 16.50 PRO DR
®
RAPID-FEED™ CHIPPER
CHAPTER 7
CHIPPER ACCESSORIES
SHUT DOWN THE ENGINE, WAIT FOR ALL MOVING PARTS TO COME TO A COMPLETE STOP, REMOVE
SPARK PLUG WIRE, DISCONNECT THE NEGATIVE BATTERY CABLE, THEN WAIT 5 MINUTES BEFORE
PERFORMING ANY MAINTENANCE PROCEDURE, ADDING OPTIONAL ACCESSORIES OR INSPECTION
ON THE CHIPPER.
Extended Top-Discharge Chute
The Extended Top-Discharge Chute enables you to better control the direction of the discharged chips
and allows you to direct them into a trailer or truck bed for transport.
Tools Needed:
• Two 1/2" Wrenches
INSTALLATION
1. Remove the two Bolts and Locknuts from the Low
Discharge Assembly with two 1/2" wrenches (Figure
47).
2. Remove the Low Discharge Assembly from the
Chipper.
3. Position the Extended Top-Discharge Chute onto the
Chipper with the Locking pin on the outside (side
furthest away from the hopper) (Figure 48).
4. Install the two Bolts and Locknuts and tighten with
two 1/2" wrenches.
Figure 47
Bolt and
Locknut
(2 places)
Low
Discharge
Assembly
Bolt and
Locknut
Extended TopDischarge Chute
Locking
Pin
Figure 48
CONTACT US AT www.DRpower.com or CALL TOLL FREE 1-800-DR-OWNER 51
180°
Figure 49
Locking
Pin
Hitch
Clip
Extended TopDischarge Chute
Discharge
Ring
OPERATION
Adjusting the Extended Top-Discharge Chute Discharge
Direction:
1. Pull the Hitch Clip and remove the Locking Pin (Figure
49).
2. Rotate the Extended Top-Discharge Chute to the
direction desired.
NOTE: The Extended Top-Discharge Chute has a range of motion of
180˚ that spans the front and both sides of the Chipper. There are 11
different hole settings at 18˚ increments that you can use.
3. Line up the Locking Pin hole to the closest hole setting
in the Discharge Ring.
4. Install the Locking Pin and secure it with the Hitch
Clip.
Adjusting the Deflector Direction:
Figure 50
Lower
Discharge
Deflector
Higher
Discharge
Deflector
Handle
1. Grab the Deflector Handle and rotate the Deflector to
the desired discharge position (Figure 50).
MAINTENANCE
Tools and Supplies Needed:
• All Purpose Grease
Lubricating the Extended Top-Discharge Chute:
1. Pull the Hitch Clip and remove the Locking Pin from
the Discharge Ring (Figure 49).
2. Apply some all-purpose grease in each hole of the
Discharge Ring and Center Ring as you rotate the
Chute.
3. Rotate the Extended Top-Discharge Chute for the full
180˚ of rotation for a few times to spread the grease
inside the Discharge Ring.
4. Reposition the Extended Top-Discharge Chute to the
desired angle and insert the Locking Pin and Hitch
Clip.
52 16.50 PRO DR
®
RAPID-FEED™ CHIPPER
Road-Towing Package
The Road-Towing Package enables the Chipper to be
towed behind a vehicle that is equipped with a 2" ball hitch
and transported on public roads to another site.
Unpacking the Road-Towing Package
Tools and Supplies Needed:
• Knife
Parts Supplied in Shipping Box (Figure 51):
• Highway Tongue Assembly
• Two Wheel Assemblies
• Two Fenders
• Axle Assembly
• Parts Box containing (Items below and Figure
52):
− Two Tail Lights with Brackets
− Wire Harness
− Wire Ties
− Hardware Package (Table below and Figure
53)
Fender
Figure 51
Parts
Package
Tail Lights
Wheel
Assembly
Axle
Assembly
Tongue
Assembly
Wire Ties
TEM # DESCRIPTION
I
QTY
1 Dust Cap 2
2 Castle Nut
2
3 3/8-16 X 1-1/4" Bolts 4
4 3/8-16 Nylon Lock Nuts 4
5 3/8" Flat Washer 2
6 Cotter Pin 2
Wire
Harness
7 5/16-18 X 1" Bolt 4
8 5/16-18 Nylon Lock Nut 4
1. Cut the Box open and with a knife and place the
Figure 52
1
contents on a clean level surface.
2. Open the parts Package and lay out the Parts.
3. Open the Hardware Package and lay out the
Hardware.
4. Compare the contents of the Shipping Box, Parts Box
2
and Hardware Package with the Parts Supplied list
above. If there are any questions contact us at
8
www.DRpower.com or call 1-800-DR-OWNER (376-
9637). Do not discard the shipping materials until you
are fully satisfied with your new Road-Towing Package.
Figure 53
Hardware
Package
3
6
5
4
7
CONTACT US AT www.DRpower.com or CALL TOLL FREE 1-800-DR-OWNER 53
Hitch
Clip
Standard
Tow Hitch
Pin
INSTALLATION
Tools and Supplies Needed:
• Wire Cutter/Stripper
• Cable Ties (provided)
• Two 3/4" Wrenches
• Two 9/16" Wrenches
• Two 1/2" Wrenches
• 10" Adjustable Wrench
• Electrical Tape
• Jack Stands or Blocks
• Jack
• 5/32" Allen Wrench
• Needle Nose Pliers
• Hammer
Figure 54
Hitch Clip
and Pin
Figure 55
Collar
Bolt and
Locknut
Set Screw
Road Towing
Tow Hitch
Bolt and
Locknut
Frame
Installing the Tow Hitch:
1. Insert a jack-stand or blocks at the front of the Chipper
to lift the Standard Tow Hitch off the ground.
2. Remove the Bolt and Locknut from the Frame and
Standard Tow Hitch with two 3/4" wrenches (Figure
54).
3. Remove the Hitch Clip and Pin and remove the
Standard Tow Hitch.
4. Position the Road-Towing Tow Hitch and secure with
the Pin and Hitch Clip (Figure 55).
5. Install the Bolt and Locknut into the Frame and Tow
Hitch with two 3/4" wrenches.
Installing the Fenders and Axle Assembly:
NOTE: It is recommended that the Ball Hitch on the Road-Towing
Tow Hitch be hooked up to the Ball on your tow vehicle to stabilize
the Chipper for the next procedure. The Tow Bar must be in the
Horizontal position to hitch to the vehicle (see “Towing” procedures
in the following section for Tow Bar adjustments).
1. Insert jack Stands or Blocks under the front corners of
the Frame or hook the Ball Hitch onto the Ball of the
tow vehicle.
Figure 56
54 16.50 PRO DR
Wheel and
Jack
Stands
®
RAPID-FEED™ CHIPPER
Spacer (behind
wheel)
2. Jack up the rear of the Chipper and insert Jack Stands
under the rear corners of the Frame to raise the
Chipper wheels off the ground (Figure 56). The
lowermost part of frame must be at least 10" from the
ground for the Wheel Assembly to fit under.
3. Remove the Collar from the axle by loosening the Set
Screw with a 5/32" allen wrench and pulling the Collar
off.
4. Remove the Wheel and Spacer that is behind the
Collar from the Axle.
5. Pull the opposite wheel along with the Axle from the
Chipper.
6. Slide the Spacer, Wheel and Collar back onto the Axle
and store in a safe place.
7. Remove the four Bolts, Lock Washers and Nuts (two
large washers on top two holes only) from the side of
the chipper Frame with two 9/16" wrenches (Figure
57).
8. Position the Fender and reinstall the four Bolts, Lock
Washers and Nuts (two large washers on top two
holes only) to the side of the chipper Frame (Figure
58).
9. Repeat the Fender installation for the opposite side.
Bolt, Nut, Lock
Washer and Flat
Washer (top two
holes)
Bolt, Nut and
Lock Washer
(bottom two
holes)
Figure 57
Bolt, Nut, Lock
Washer and Flat
Washer (top two
holes)
Bolt, Nut and
Lock Washer
(bottom two
holes)
Figure 58
Fender
10. Position the new Axle Assembly under the Chipper
and secure it to the Axle Brackets with two Bolts,
Locknuts and Washers (on the side with slots) and
two Bolts and Locknuts (on side with holes) using two
9/16" wrenches (Figure 59).
CONTACT US AT www.DRpower.com or CALL TOLL FREE 1-800-DR-OWNER 55
Mounting
Slots this
side
Figure 59
Axle
Assembly
Hardware
Axle Bracket
Axle
Assembly
Figure 60
11. Slide a Wheel Assembly onto the Axle Shaft. Make
sure the open side of the Wheel Hub with the loose
Taper Bearing is facing towards you (Figure 60).
Wheel
Assembly
Taper
Bearing
12. Screw the Castle Nut onto the Axle and tighten it with
an adjustable wrench to seat the Bearings (Figure 61).
13. Back the Castle Nut off and then snug it up to the
Bearing lightly.
14. Insert a Cotter Pin through the slots of the Castle Nut
and into the hole in the Axle.
Figure 61
Figure 62
Cotter Pin
Dust Cap
Wheel
Assembly
Castle
Nut
15. Bend the ends of the Cotter Pin with Needle nose
Pliers to secure it.
16. Place the Dust Cap onto the Wheel Assembly and
secure it by placing a piece of wood over it and
pounding lightly with a hammer until it is against the
lip (Figure 62).
17. Jack the back of the Chipper up and remove the jack
Stands.
18. Lower the Chipper to the ground.
19. Check the Tire for proper air pressure of 60 psi
maximum in each Tire.
56 16.50 PRO DR
®
RAPID-FEED™ CHIPPER
Installing the Tail Lights:
1. Push the Yellow/Brown and Green/Brown Wires of
the Wire Harness through the hole in the front left
side of the Frame (Figure 63).
2. Pull the Wires to the back of the Chipper Frame. Pull
the Yellow/Brown Wires up through the Wire Hole on
the left rear of the Frame (Figure 64). Do not pull the
Wires through the Bracket Holes.
3. Pull the Green/Brown Wire up through the Wire Hole
in the right rear of the Frame.
4. Strip 1/2" of insulation from the ends of the
Yellow/Brown wires and Green/Brown wires and twist
the individual wire ends to aid in installation.
Figure 63
Left Side
of Frame
Hole in
Frame
Wire
Harness
Rear of
Frame
Light
Bracket
Holes
Wire
Hole
NOTE: Ensure that you have the correct Light for each side.
The Side Light of each Light Assembly must face to
the outside of the Chipper.
5. Push the Yellow Wire into the top left hole in the back
of the light socket and push the Brown Wire into the
top right hole (Figure 65).
NOTE: The wires will be connected and retained in the light
socket holes by spring-loaded connections.
6. Push the Green Wire into the top right hole in the
back of the light socket and push the Brown Wire into
the top left hole.
CONTACT US AT www.DRpower.com or CALL TOLL FREE 1-800-DR-OWNER 57
Figure 64
Yellow
Wire
Brown
Wire
Side
Light
Figure 65
Figure 66
7. Attach both Light Brackets to the Frame with Bolts and
Locknuts with two 1/2" wrenches (Figure 66).
Light
Bracket
Bolt and
Locknut
Figure 67
Ground
Wire
Figure 68
Wire Harness
Cable
Ties
Trailer
Hitch Bolt
Cable Tie
Excess Wire
to Tow Bar
8. Secure the Wires under the Frame with Cable Ties at
the four places shown (Figure 67).
9. Pull the excess wire to the front of the Chipper.
10. Strip 1" of insulation from the end of the White
(Ground) Wire.
11. Loosen a Trailer Hitch Bolt, wrap the White (Ground )
Wire around the Bolt, and then re-tighten with two
3/4" wrenches (Figure 68).
12. Roll up the extra wire and wire tie it to the Tow Bar.
NOTE: We recommend that you wrap the Harness Wires together
with electrical tape about every twelve inches starting at the Wire
Harness Connector end and going back to where the wires go to
either side of the Frame.
58 16.50 PRO DR
®
RAPID-FEED™ CHIPPER
To w in g
J
NOTE: The Tow Bar must be in the horizontal (towing)
position for the following procedures.
MAKING SURE THE CHIPPER IS SECURELY ATTACHED TO
THE VEHICLE IS THE RESPONSIBILITY OF THE
OWNER/OPERATOR. FAILURE TO SECURELY ATTACH THE
CHIPPER CAN CAUSE LOSS OF CONTROL OF THE VEHICLE
OR THE CHIPPER BEING SEPARATED FROM THE TOWING
VEHICLE, RESULTING IN SERIOUS IN
1. Pull the latch assembly on the Tow Hitch Assembly up
and into the open position. Position the hitch coupler
of the Chipper over and onto the tow vehicle’s tow ball
(must be a 2" tow ball) (Figure 69).
URY OR DEATH.
Tow
Hitch
Assembly
Figure 69
Latch
Assembly
2" Tow Ball
2. Close the Latch Assembly on the Tow Hitch Assembly
to lock it onto the Tow Ball (Figure 70). Attach the
towing Safety Chains to the tow vehicle ensuring there
is enough slack for turning.
3. Slide the Locking Pin into the hole in the Latch
Assembly.
AVOID DEATH OR SERIOUS INJURY. DO NOT EXCEED 45
MPH WHEN TOWING THIS MACHINE.
4. 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 71).
5. Connect the Wire Harness Connector to your Tow
Vehicle and ensure that your lights on the Chipper are
working properly.
If there are any questions, contact us at
www.DRpower.com or call 1-800-DR-OWNER (376-9637).
Latch
Assembly
Tow
Hitch
Assembly
Safety
Chains
Figure 70
Lock or
Lock Pin
Latch
Assembly
Figure 71
CONTACT US AT www.DRpower.com or CALL TOLL FREE 1-800-DR-OWNER 59
Hitch Coupler Adjustment Check
Pull
1/16"
Movement
Figure 72
Lock Nut
Figure 73
Ball Clamp
Ball
Locking
Trigger
Spring
1. Place the proper size ball in the socket of the
coupler and close the latch assembly (Figure 72).
Verify that the locking trigger is properly engaged in
its detent.
2. Pull on the ball and/or coupler, trying to remove the
ball from the socket. If the ball moves more than
1/16" in the coupler’s socket, the clamp requires
adjustment. Follow the proper adjustment
procedure in the following steps.
Hitch Coupler Adjustment
1. With the proper size ball in the socket of the hitch
coupler, close the latch of the coupler completely
(Figure 73). Verify that the locking trigger is properly
engaged in its detent.
2. Tighten the lock nut on the underside of the coupler
until the spring between the nut and the clamp is fully
compressed. Then back off the lock nut 1/2 turn or
just enough that the latch is able to clamp and
unclamp from the ball.
60 16.50 PRO DR
®
RAPID-FEED™ CHIPPER
CONTACT US AT www.DRpower.com or CALL TOLL FREE 1-800-DR-OWNER 61
CHAPTER 8
PARTS LIST AND SCHEMATIC DIAGRAMS
Parts List - 16.50 PRO DR RAPID-FEED CHIPPER
NOTE: Part numbers listed are available through DR Power Equipment.
Ref# Part# Description
01 242051 Chipper Basic Assembly
02 242061 Discharge Weldment
03 242071 Tongue Weldment, Non Highway
04 142921 Plate, Hitch
05 146051 Bolt, 5/16-18 X 1", GR 5
06 143130 Nut, Nylon Lock, 5/16-18
07 242081 Pin, Tongue, 1/2"
08 182581 Clip, Hitch
09 153890 Bolt, 1/2-13 X 3-1/2", GR 5
10 242091 Nut, Nylon Lock, 1/2-13
11 244261 Belt, Banded, 2 Groove
12 142291 Key, Shaft, 1/4" SQ X 1-1/4"
13 242101 Sheave, 2 Groove
14 242111 Bushing, 1-1/4"
15 242121 Guard, Belt
16 242131 Guard, Belt
17 242141 Cover, Side, Engine
18 242151 Bracket, Guard, Belt
19 241771 Bracket 3/16"
20 242161 Cover
Ref# Part# Description
21 241611 Bolt, 1/4-20 X 1", GR 5
22 143400 Nut, Nylon Lock, 1/4-20
23 145150 Washer, Flat, 5/16"
24 155110 Washer, Lock, Split, 5/16"
25 185891 Nut “J” Plain, 5/16-18
26 242171 Hopper Assembly
Safety & Information Labels
241811 Label, Danger, Rotating Knife and
Flywheel
241821 Label, Warning, Rotating Parts
127811 Label, Warning, Add Oil
241831 Label, Warning, High Speed
Discharge
242041 Label, Danger, 10 mph
62 16.50 PRO DR
®
RAPID-FEED™ CHIPPER
Schematic - 16.50 PRO DR RAPID-FEED CHIPPER
CONTACT US AT www.DRpower.com or CALL TOLL FREE 1-800-DR-OWNER 63
Parts List - 16.50 PRO DR RAPID-FEED CHIPPER
NOTE: Part numbers listed are available through DR Power Equipment.
Ref# Part# Description
01 242181 Base Weldment
02 242191 Bracket, Axle
03 154490 Bolt, 3/8-16 X 1-1/4", GR 5
04 154480 Nut, Nylon Lock, 3/8-16
05 145160 Washer
06 241651 Bracket, Tension, Belt
07 242201 Plate, Engine
08 241681 Elbow, 90 DEG, 1/4" NPT
09 241691 Cap, Pipe, Hex Head, 1/4" NPT
10 242211 Clutch, 3V, 2 Groove
11 216541 Bolt, 7/16-20 X1-1/4", GR 8
12 242221 Washer, 1.5 OD x .453 ID x .156
Thick
13 242231 Washer, Lock, Split, 7/16"
14 242241 Cable, Battery, Positive
15 142291 Key, Shaft, 1/4" SQ X 1-1/4"
16 183221 Spacer, Clutch
17 146051 Bolt, 5/16-18 X 1", GR 5
18 159790 Bolt, 5/16-18 X 1-3/4", GR 5
19 145150 Washer, Flat, 5/16"
20 143130 Nut, Nylon Lock, 5/16-18
Ref# Part# Description
21 241701 Bolt, Carriage, 5/16-18 X 3"
22 242251 Axle, 3/4" OD
23 242261 Collar, Locking, 3/4" ID
24 242271 Wheel, Pneumatic, 5.3/4.5-6
25 242281 Spacer, Wheel, 1" OD
26 242291 Engine, Briggs and Stratton,
1650 Series, Manual Start
249311 Engine, Briggs and Stratton,
1650 Series, Electric Start
27 134471 Battery, Gel-Filled
28 242301 Hold Down, Battery
29 242311 Cable, Battery, Negative
30 241611 Bolt, 1/4"-20 X 1", GR 5
31 143400 Nut, Nylon Lock, 1/4-20
32 143390 Washer, Flat, 1/4"
Safety & Information Labels
241851 Label, Warning, Do Not Climb
127811 Label, Warning, Add Oil
241801 Label, Danger, Read Operators
Manual
242321 Label, Warning, Burn Hazard
242331 Label, Warning, Avoid Electric Shock
(electric start only)
227171 Label, USA
64 16.50 PRO DR
®
RAPID-FEED™ CHIPPER
Schematic - 16.50 PRO DR RAPID-FEED CHIPPER
CONTACT US AT www.DRpower.com or CALL TOLL FREE 1-800-DR-OWNER 65
Parts List – Chipper Basic
NOTE: Part numbers listed are available through DR Power Equipment.
Ref# Part# Description
01 155301 Screw, 3/8-16 X 1-3/4", FHSCS,
GR 8
02 154480 Nut, Nylon Lock, 3/8-16
03 242341 Knife, Pro
04 242351 Flywheel
05 242361 Sideplate, Vent
06 242371 Sideplate Weldment, Chute
07 242381 Scroll Weldment
08 242391 Plate, Wear
09 242401 Brace, Basic
10 242411 Tube, Scroll, 1/4"
11 242421 Bearing, 2 Bolt, 1-1/4"
12 242431 Shim, Shaft, 1-1/4", .025" Thick
(as needed)
13 242441 Shim, Shaft, 1-1/4", .050" Thick
(as needed)
14 242451 Shim, Shaft, 1-1/4", .075" Thick
(as needed)
15 242461 Shim, Shaft, 1-1/4", .125" Thick
(as needed)
16 242471 Ring, Retaining, 1-1/4"
17 242481 Bolt, 1/2-13 X 1-1/2", GR 5
18 242091 Nut, Nylon Lock, 1/2-13
Ref# Part# Description
19 242491 Bolt, 5/16-18 X 5-1/4", GR 5
20 146051 Bolt, 5/16-18 X 1", GR 5
21 143130 Nut, Nylon Lock, 5/16-18
22 195661 Bolt, Carriage, 1/4-20 X 1"
23 143390 Washer, Flat, 1/4"
24 143400 Nut, Nylon Lock, 1/4-20
25 154490 Bolt, 3/8-16 X 1-1/4", GR 5
26 154480 Nut, Nylon Lock, 3/8-16
27 242501 Cover, Access
28 155121 Screw, Self Tapping, 10-32 X 3/8"
Not Illustrated
244121 Knife Kit, Pro
197091 Gauge, Knife Gap
Safety & Information Labels
241991 Label, Warning, Rotating Parts Inside
242001 Label, Warning, Rotating Knife and
Flywheel
234941 Label, DR logo
66 16.50 PRO DR
®
RAPID-FEED™ CHIPPER
Schematic - Chipper Basic
CONTACT US AT www.DRpower.com or CALL TOLL FREE 1-800-DR-OWNER 67
Parts List – Hopper Assembly
NOTE: Part numbers listed are available through DR Power Equipment.
Ref# Part# Description
01 242511 Hopper Weldment, Bottom
02 242521 Hopper Weldment, Left
03 242531 Hopper Weldment, Right
04 242541 Hopper, Top
05 242551 Shield, Blow-Back
06 242561 Support, Blow-Back
07 241581 Bracket, Guard
08 241611 Bolt, 1/4-20 X 1", GR 5
09 143400 Nut, Nylon Lock, 1/4-20
Ref# Part# Description
10 241621 Bolt, Philips Head, 5/16-18 X
1/2", GR 5
11 241631 Nut, Nylon Lock, Thin, 5/16-18
Safety & Information Labels
241841 Label, Danger, Avoid Death
68 16.50 PRO DR
®
RAPID-FEED™ CHIPPER
Schematic – Hopper Assembly
CONTACT US AT www.DRpower.com or CALL TOLL FREE 1-800-DR-OWNER 69
Parts List – Accessories
NOTE: Part numbers listed are available through DR Power Equipment.
ROAD-TOWING PACKAGE
Ref# Part# Description
01 242571 Tongue Weldment, Highway
02 161011 Hitch, Trailer
03 148911 Chain, Safety, Class 1
04 153890 Bolt, 1/2-13 X 3-1/2", GR 5
05 242091 Nut, Nylon Lock, 1/2-13
06 153890 Bolt, 3/8-16 X 3-1/2", GR 5
07 154480 Nut, Nylon Lock, 3/8-16
08 145160 Washer, Flat, 3/8"
09 242581 Axle Weldment, Highway
10 242591 Fender Weldment
11 242601 Wheel & Tire Assembly, w/hub
12 178141 Light, Stop, Curb Side
13 155991 Light, Stop, Road Side
14 149051 Wire Harness, 10ft
15 154490 Bolt, 3/8-16 X 1-1/4", GR 5
16 146051 Bolt, 5/16-18 X 1"
17 143130 Nut, Nylon Lock, 5/16-18
EXTENDED TOP-DISCHARGE CHUTE
Ref# Part# Description
18 242621 Flange, Side
19 242631 Plate, Bottom
20 242641 Swivel Weldment
21 242651 Top Discharge Weldment
22 242661 Deflector Weldment
23 146051 Bolt, Carriage, 5/16-18 X 1", GR 5
24 145150 Washer, Flat, 5/16"
25 143130 Nut, Nylon Lock, 5/16-18
26 241611 Bolt, 1/4-20 X 1", GR 5
27 143400 Nut, Nylon Lock, 1/4-20
28 242671 Pin, Locking
29 182581 Hitch Clip
30 242681 Swivel Top, Pin Side
31 242691 Swivel Top
32 242701 Spacer, Swivel
Safety & Information Labels
Safety & Information Labels
242611 Label, Danger, 45 mph
241851 Label, Warning, Do Not Climb
70 16.50 PRO DR
®
RAPID-FEED™ CHIPPER
241831 Label, Warning, High Speed
Discharge
241811 Label, Danger, Rotating Knife and
Flywheel
Schematic – Accessories
CONTACT US AT www.DRpower.com or CALL TOLL FREE 1-800-DR-OWNER 71
72 16.50 PRO DR
®
RAPID-FEED™ CHIPPER
Notes:
CONTACT US AT www.DRpower.com or CALL TOLL FREE 1-800-DR-OWNER 73
Notes:
74 16.50 PRO DR
®
RAPID-FEED™ CHIPPER
16.50 PRO
R
®
D
The 16.50 PRO DR® RAPID-FEED™ CHIPPER is warranted for two (2) years against defects in materials or
workmanship when put to ordinary and normal consumer use; ninety (90) days for any other use.
For the purposes of all the above warranties, “ordinary and normal consumer use” refers to non-commercial residential
use and does not include misuse, accidents or damage due to inadequate maintenance.
DR Power Equipment certifies that the 16.50 PRO DR
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.
The 2-Year Limited Warranty on the 16.50 PRO DR® RAPID-FEED™ CHIPPER starts on the date the machine ships
from our factory. The 2-Year Limited Warranty is applicable only to the original owner.
The warranty holder is responsible for the performance of the required maintenance as defined by the manufacturer's
owner's manuals. The warranty holder is responsible for replacement of normally wearing parts such as the Drive Belt,
Battery, Knife, Wear Plate, Tires, Clutch, Air Filter and Spark Plug. Attachments and accessories to the machine are not
covered by this warranty.
RAPID-FEED™ CHIPPER
2-Year Limited Warranty
Terms and Conditions
®
RAPID-FEED™ CHIPPER is fit for ordinary purposes for which a
During the warranty period, the warranty holder is responsible for the machine transportation charges, if required.
During the warranty period, warranty parts will be shipped by standard method at no charge to the warranty holder.
Expedited shipping of warranty parts is the responsibility of the warranty holder.
SOME STATES DO NOT ALLOW LIMITATIONS ON THE LENGTH OF IMPLIED WARRANTIES, SO THE ABOVE
LIMITATIONS MAY NOT APPLY TO YOU.
DR Power Equipment shall not be liable under any circumstances for any incidental or consequential damages or
expenses of any kind, including, but not limited to, cost of equipment rentals, loss of profit, or cost of hiring services to
perform tasks normally performed by the 16.50 PRO DR
SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL
DAMAGES, SO THE ABOVE LIMITATIONS MAY NOT APPLY TO YOU.
®
RAPID-FEED™ CHIPPER.
Customer Service Hotline
DR Power Equipment’s objective is to have 100% satisfied customers. For that reason, we operate a 6-day-a-week
Technical Service Department for our Owners. You can access a Representative by dialing our TOLL-FREE Hotline at 1800-DR-OWNER (376-9637). The sole job of our well-trained and friendly folks is to ensure that you get any help you
need in a timely fashion. They are there to answer all your questions including: (1) inquiries on any of the above
warranties, (2) inquiries about replacement parts, or (3) your questions regarding service, maintenance and operation.
THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS, AND YOU ALSO HAVE OTHER RIGHTS, WHICH VARY
FROM STATE TO STATE.
Daily Checklist for the 16.50 PRO DR RAPID-FEED CHIPPER
To help maintain your 16.50 PRO DR RAPID-FEED CHIPPER for optimum performance, we recommend
you follow this checklist each time you use your Chipper.
SHUT DOWN THE ENGINE, WAIT FOR ALL MOVING PARTS TO COME TO A COMPLETE STOP,
REMOVE SPARK PLUG WIRE, DISCONNECT THE NEGATIVE BATTERY CABLE, THEN WAIT 5 MINUTES
BEFORE PERFORMING ANY MAINTENANCE PROCEDURE OR INSPECTION ON THE CHIPPER.
[ ] OIL: With the machine on a level surface, check the Engine oil level with the Dipstick and add more
if necessary (only add oil to the level indicated on the Dipstick - DO NOT OVERFILL). Use SAE 30
high detergent motor oil.
[ ] GAS: Fill the Fuel Tank with clean, fresh, unleaded gasoline.
[ ] ENGINE AIR COOLING SYSTEM: It is very important to keep the Engine clean of debris. Remove
leaves and other built-up materials from the Air Intake Screen before, during, and after using the
Chipper. Regularly remove debris from the Cooling Fins. A dirty Engine retains heat and can cause
damage to the internal Engine parts.
[ ] BELT: Check the Belt for wear, proper alignment and tension.
[ ] KNIFE and WEAR PLATE: Check the Knife and Wear Plate for tightness, nicks and wear.
[ ] GENERAL CONDITION: Check the general condition of the machine, e.g.; nuts, bolts, welds, etc.
[ ] HOPPER: Check that there is no material left in the hopper before starting the Chipper.
[ ] TIRES: Check that there the proper amount of air in the Tires.
DR® Power Equipment
127 MEIGS ROAD, P.O. BOX 25, VERGENNES, VERMONT 05491
1-800-DR-OWNER (376-9637) • www.DRpower.com ©2008 CHP, Inc. 241101
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