Product Support

DR® Field & Brush Mower

We want to help you keep your DR® Field & Brush Mower running in top form.

Use these resources to help maximize performance and extend the life of your investment. If there is something specific you are looking for, chat live with one of our Specialists during our business hours.

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Warranty

All DR® Field and Brush Mowers are protected against defects for two years residential use (90 days for commercial use).

See your Owner's Manual for detailed warranty information.

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Owner's Manuals, Parts Lists & Schematics

If you have any questions or are unsure of your model, please contact one of our experienced Technical Support Specialists via live chat, contact us or phone.

Please Note: Parts Lists and Schematics are located in the back of the Owner's Manual.

Attachment ChipperOwner's Manual
Attachment 42" Lawn Mower DeckOwner's Manual
Attachment 46" Lawn Mower DeckOwner's Manual
Attachment 42" Grader/Snow BladeOwner's Manual
Attachment 30" Snow ThrowerOwner's Manual
Attachment 6000-Watt GeneratorOwner's Manual
Attachment Bladeless Mowing AttachmentOwner's Manual
Scout 8.25 (January 2007 and Later)Owner's Manual
Scout 8.25 (September 2005 - December 2006)Owner's Manual
Scout 8.25 (2003 - August 2005)Owner's Manual
Self-Propelled Pro & Pro-XL (April 2011 - Present)Owner's Manual
Self-Propelled 12.5 Premier (May 2009 - Present)Owner's Manual
Self-Propelled 11.5 - 17 HP (December 2010 - March 2011)Owner's Manual
Self-Propelled 12.5 HP Tecumseh with 42" Lawn Deck (February 2008 - August 2009)Owner's Manual
Self-Propelled 11.5 - 17 HP (September 2005 - December 2010)Owner's Manual
Self-Propelled 13 - 17 HP (April 2005 - August 2005)Owner's Manual
Self-Propelled 13 - 17 HP (February 2003 - March 2005)Owner's Manual
Self-Propelled 13 - 17 HP (February 2003 - March 2005)Parts List & Schematics
Self-Propelled 13 - 17 HP (May 2001 - February 2003)Owner's Manual
Self-Propelled 8 - 15 HP (1998 - 2001)Owner's Manual
Self-Propelled Bachtold (1989 - 2001)Owner's Manual
Tow Behind 13hp B&S and 17hp Kawasaki (March 2007 - Nov. 2010)Owner's Manual
Tow Behind Premier 12.5hp B&S (Dec. 2012 - Present)Owner's Manual
Tow Behind 15 & 20hp Kohler w/ EPA Fuel Tank (March 2011 - Present)Owner's Manual
Tow Behind 20hp Kohler w/o EPA Fuel Tank (Dec. 2010 - May 2011)Owner's Manual

Frequently Asked Questions

  • Q: Does the machine arrive fully assembled?

    A: Minimal assembly is required. You'll need to slide the Power Unit Shaft into the Brush Deck and attach the Blade Belt. This takes a maximum of 5 to 10 minutes. For electric-start models, you'll also need to connect the battery wire. Consult your Owner's Manual for easy instructions.

  • Q: Can I safely mow on hills?

    A: You can safely mow on slopes up to 20° with self-propelled models and tow-behind models.

  • Q: How long can I mow using the standard 2-1/2 gallon gas tank?

    A: How long a tank of gas will last will vary depending on conditions, but generally the 2 1/2 gallon tank will last approximately 2-3 hours and the optional 5 gallon tank will last approximately 4-6 hours.

  • Q: Are the tires puncture resistant?

    A: Yes. The tires are filled with a liquid sealant that fills punctures and prevents leaking.

  • Q: What is the cutting height?

    A: Our Self-Propelled models have a fixed, 4" cutting height. The cutting height on our Tow-Behind models can be adjusted to 4", 5", 6 1/4" and 7 1/2".

  • Q: How are DR products shipped?

    A: We offer 3 basic options:
    1) Delivery to a Depot
    2) Delivery to Home or Business
    3) Enhanced Home Delivery

  • Q: What happens if my machine needs service?

    A: If you are experiencing a problem with your DR Field and Brush Mower, start by taking a look at the Owner Support area on the DR website. Here you'll find owner's manuals, FAQ, troubleshooting information, safety tips, storage information, and more. If you cannot find the information you are looking for, contact our Technical Service department at 1-800-687-6575. Our knowledgeable representatives have an extensive understanding of the DR Field and Brush Mower and will be able to identify the problem and the best solution. If necessary, we can have replacement parts shipped to you right away, or direct you to one of more than 1,500 authorized DR Service Centers nationwide.

  • Q: How does your 6 Month Hands-On Trial work?

    A: We are so confident that you'll love your DR machine that we want you to be able to try it out on your own property virtually risk-free. If at any time during the first 6 months of owning your DR (6 months from the date it ships) you decide that it isn't right for you, or wish to exchange it for a different model, we will take it back, no questions asked. Just pay for the return shipping, and we will refund your full purchase price.

  • Q: How does my warranty work?

    A: DR machines come with a 2-year warranty (for residential use, 90 days for commercial use) that covers all defects in materials and workmanship. Extended warranties (1-year, 2-year, and 3-year) are available to extend your coverage for a total of up to 5 years. If, while your machine is under warranty, you experience a problem with your machine, your warranty will cover the replacement and installation of any non-wearable parts deemed to be the result of defective materials or workmanship. See more information here.

Tips & Tricks

The following information is provided to demonstrate proper techniques when operating your DR® Field and Brush Mower.

Note: This information pertains to the most recent Field and Brush Mower models. Please refer to your Safety & Owner's Manual for instructions specific to your machine. Please refer to the Engine Owner's Manual for engine specific instructions.

The mower engine's power can easily throw stones, sticks, and other debris at great velocity, which could cause personal injury or property damage. Do not run the machine over gravel driveways or over loose stones or mulch with the mower blade spinning.

Slopes, Obstacles and Terrain

  • For Walk-Behind Models: Locking IN the differential will improve traction, and keep the machine traveling on a straighter path. Once on level terrain, lock OUT the differential for easier turning. To avoid "free wheeling", shift into a lower gear before going down a slope. Do not shift while on a slope.
  • Always check your work area before mowing and remove any debris that might tangle or damage the machine.
  • For Walk-Behind Models: If you need to leave the operating position to clear debris from the mower deck, first put the machine in neutral, set the brake, turn off the engine and disconnect the spark plug wire(s).
  • For Tow-Behind Models: If you need to leave the tow vehicle to clear debris from the mower deck, set the parking brake and shut off the tow vehicle engine, disengage the mower blades, turn off the engine and disconnect the spark plug wire(s).

Cutting Brush and Saplings

  • When cutting woody material, small saplings, etc., allow the machine to ride up and over material slowly. Adjust your forward speed to varying conditions.
  • After cutting brush, etc., you may want to mow over it again to remove any remaining branches. It works best to mow from the trunk end toward the top as brush lies on the ground.
  • When you are cutting high grass or brush, be sure to keep the uncut material to your left, maintaining a clear discharge area to your right. To further mulch material, overlap half of the cutting swath in your next pass.
  • For Tow-Behind Models: If you are using offset mowing, keep the offset at 75% when cutting heavy brush.

If the Machine Is Hung Up

  • Disengage the Blade. NEVER try to free the machine from stumps or debris with the Blade engaged.
  • Try putting the machine in reverse and backing away from the obstacle.
  • For Walk-Behind Models: Try pushing down on the handlebars to lift the mowing deck over the obstacle.

Reverse Gear

  • For Walk-Behind Models: Be very careful of your footing when operating the machine in reverse. Know what's behind you and take your time.
  • For Walk-Behind Models: Disengage the Blade before shifting into reverse. Mow in the forward gears only, using reverse for maneuvering.
  • For Walk-Behind Models: If you find it difficult to shift into reverse, lightly "feather" the Clutch Lever as you put the Shift Lever into reverse, then quickly release the Clutch Lever.

Cutting in Wet and Heavy Growth

  • Avoid steep slopes and other slippery areas.
  • Slow Down. Use a lower gear when mowing in wet conditions.

Cold Weather Operation

  • For Walk-Behind Models: At temperatures below 30° F and a high dew point, your DR® Field and Brush Mower engine may experience icing of the carburetor and/or the crankcase breather system. We offer an optional engine cover to prevent icing in these weather conditions. The cover can be purchased through our DR® Field and Brush Mower accessories page.
  • For Walk-Behind Models: As a preventative measure to prevent control cable freeze up: prior to using your DR® Field and Brush Mower in cold weather, inject "dry gas" into the Brake, and Clutch cable-housing openings to absorb any moisture that may have collected. Tip the machine forward slightly so the "dry gas" will flow down the inside of the housings, and then lubricate as outlined in your Owner's Manual.

Safety Information

Important Safety Information regarding your DR® Field and Brush Mower.

Warning: Read the Safety and Operating Manual before you use the DR® Field and Brush Mower. Become familiar with the service recommendations to ensure the best performance from your Field and Brush Mower. (Our most recent manuals are available as a PDF download.)

Safety Rules

Labels

  • Your DR® Field and Brush Mower carries prominent labels as reminders for its proper and safe use. Your Owner's Manual shows copies of all the labels that appear on the equipment. Take a moment to study them and make a note of their location on your DR® Field and Brush Mower as you assemble and before you operate the machine. Replace damaged or missing safety and information labels immediately.

Protecting Yourself and Others Around You

This is a high-powered machine, with moving parts operating at 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 cut, and sever parts of your body if they become in contact with the moving blades. Always take the following precautions when operating this machine:

  • Always wear protective goggles or safety glasses with side shields while operating or performing an adjustment on your DR® Field and Brush Mower to protect your eyes from possible foreign objects thrown from the machine.
  • Wear shoes with non-slip treads when using your DR® Field and Brush Mower. If you have safety shoes, we recommend wearing them. Do not use the machine while barefoot or wearing open sandals.
  • Avoid wearing loose clothing or jewelry, which can catch on the machine's moving parts.
  • We recommend wearing long pants and gloves while using your DR® Field and Brush Mower. Be sure the gloves fit properly and do not have loose cuffs or drawstrings.
  • We recommend the use of ear protectors or ear plugs rated for at least 20 DBA to protect your hearing.

Operating the Mower Safely

This is a high-powered machine, with moving parts operating at 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 cut, and sever parts of your body if they become in contact with the moving blades. Always take the following precautions when operating this machine:

  • Allow only responsible individuals who are familiar with these general safety rules and operating instructions to use your DR® Field and Brush Mower. Never allow people who are unfamiliar with these instructions to use the machine.
  • Keep bystanders at least 100 feet away from your work area at all times. Objects can be thrown far from the mower and at great speeds. To be safe, do not operate the machine near small children or pets, and never allow children to operate the mower. Disengage the blade and stop the engine (and tow vehicle if applicable) when another person or pet approaches.
  • Clear the area of objects such as rocks, toys, wires, bones, sticks,etc., which could be picked up and thrown by the blade.
  • Be sure all blade and wheel controls are disengaged before attempting to start the engine. Engage and disengage the blade a few times to get used to it before mowing.
  • Keep your hands and feet away from the blade, belts, chains, blade pulleys, and concealed areas while the engine is running. Never reach under the deck or touch of any part of the deck when the engine is running.
  • Do not touch the exhaust area, including the muffler and engine when the machine is in use as they become very hot with use. Allow the engine to cool before doing maintenance or making adjustments.
  • Keep combustible substances away from the engine.
  • Never, under any conditions, remove, bend, cut, fit, weld, or otherwise alter standard parts on the DR® Field and Brush Mower. This includes all shields and guards. Modifications to your machine could cause personal injuries and property damage and will void your warranty.
  • For Tow-Behind Models: Have a complete working knowledge of your tow vehicle and know how to handle it with the Tow-Behind Field and Brush Mower attached.
  • For Tow-Behind Models: Never get off the tow vehicle without first stopping the blades and shutting off the tow vehicle engine and the Tow-Behind Field and Brush Mower.

General Safety

Safe operation of the DR® Field and Brush Mower is necessary to prevent or minimize the risk of death or serious injury. Unsafe operation can create a number of hazards for you. Always take the following precautions when operating this machine:

  • The DR® Field and Brush Mower is a powerful tool and not a plaything. When using this machine, exercise extreme caution at all times. The design of this machine is to mow grass and brush. Do not use it for any other purpose.
  • The operator or user is responsible for accidents or hazards occurring to other people, their property, and themselves.
  • Know how to quickly stop the DR® Field and Brush Mower.
  • Always shut off the engine whenever you leave the machine. Remove the spark plug wire before adjusting the machine. If you have to stop to remove grass or debris from the underside of the deck, always disconnect the spark plug wire first.
  • Disengage the blade(s) and exercise extreme caution when on or crossing drives, walks, or roads. Stay alert for hidden hazards or traffic.
  • Watch for traffic when mowing near roadways.
  • Use extra caution when mowing in wet or slippery conditions.
  • If the machine starts to make an unusual noise or vibration, immediately shut off the engine, disconnect the spark plug wire, and allow all moving parts to come to a complete stop. Vibration is generally a warning of trouble. Inspect for clogging or damage. Clean and repair and/or replace damaged parts.
  • Always keep the machine in good safe operating condition. Always make certain nuts and bolts are tight and always use the supplied self-locking hardware. Do not use substitute hardware.
  • While using the DR® Field and Brush Mower, do not 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. Make sure that you have 100% control of the mower at all times.
  • Do not operate the machine when under the influence of alcohol, drugs or medication.
  • Use the machine only in daylight and give complete, undivided attention to the job at hand.
  • The mower blade(s) is sharp and can cut. Wrap the blade or wear gloves, and use extra caution when servicing.
  • For Walk-Behind Models: Use caution when mowing close to fences, buildings, trees, etc.; so as not to hit the handle bar. Doing so, you may injure your hand or lose control of the machine.
  • For Walk-Behind Models: Always operate the mower from behind. Never pass or stand on the discharge (right) side or in front of machine when the engine is running.
  • For Walk-Behind Models: Do not pull the mower backwards unless absolutely necessary. Look down, and behind before and while moving backwards.
  • For Walk-Behind Models: When operating over uneven terrain and slopes, use extreme caution to ensure solid and firm footing. Keep a firm hold on the handlebars and walk, never run.
  • For Tow-Behind Mowers: Always mount the remote control panel within easy reach of the operator's position.
  • See manufacturer's instructions for proper operation and installation of accessories (if applicable). Only use accessories approved by DR® Power Equipment, Inc.
  • 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 mower in a safe manner.
  • If you are in need of assistance, please contact our Technical Support Specialists.

Operating on Slopes

Slopes are a major factor related to slip and fall accidents, which can result in severe injury. All slopes require caution. If you feel uneasy on a slope, do not mow it. Always take the following precautions when using this machine on slopes:

  • For Walk-Behind Series: Mow across the face of slopes; never up and down. Exercise extreme caution when changing direction on slopes.
  • For Tow-Behind Series: Mow up and down the face of slopes and avoid going across. Exercise extreme caution when changing direction on slopes.
  • Remove objects such as glass, large sticks, stones, metal objects, wire, rope, and string-like material.
  • Watch for holes, ruts, or bumps on the ground. Tall grass can hide obstacles.

Never:

  • Never mow near drop-offs, ditches, or embankments. You could lose control of your tow vehicle (if applicable) and machine, or your footing or balance.
  • Never mow on slopes greater than 20° or any excessively steep slopes. For Tow-Behind Models, see the Operating Parameters in your Owner's Manual for further restrictions relating to your tow vehicle.
  • Never mow on wet or slippery slopes. Reduced traction could result in slipping, or tipping over your tow vehicle (if applicable) and the machine.

Safety for Children and Pets

Tragic accidents can occur if the operator is not alert to the presence of children. Children are often attracted to the mower and the mower activity. Never assume that children will remain where you last saw them.

  • Keep children and pets out of the work area and under the watchful care of a responsible adult.
  • Be alert and always turn off the tow vehicle (if applicable) and the DR® Field and Brush Mower if children or pets enter the work area.
  • Before and while moving backwards, look behind, and down for small children and pets.
  • Never allow children to operate the DR® Field and Brush Mower.
  • Use extra care when approaching blind corners, shrubs, trees, or other objects that may obscure your vision.
  • For Tow-Behind Models: Never allow children or pets to ride on the mower, even if the engine is not running.

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.
  • Fill the gasoline tank outdoors with the engine off and allow the engine to cool completely. Do not handle gasoline if you or anyone nearby is smoking, or if you're near anything that could cause it to ignite or explode. Replace 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 and empty the collector box 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.
  • Never make adjustments or repairs with the engine running. Before making an adjustment or repair, shut off the DR® Field and Brush Mower engine, wait five (5) minutes to cool, then disconnect the spark plug wire(s) and keep the wire(s) away from the spark plug to prevent accidental starting.
  • Never check for an ignition spark with the spark plug or spark plug wire(s) removed. Always use an approved spark plug tester.
  • Never tamper with safety devices. Regularly check their proper operation.
  • Never tamper with the engine's governor setting or modify the engine speed. The governor controls the maximum safe operating 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 engine dealer for engine governor adjustments.
  • To reduce fire hazard, keep the engine and muffler area free of debris build-up such as leaves, grass, oil, grease, or any other combustible material. Clean the engine area after each use.
  • Never operate the engine with the air cleaner or cover over the carburetor air intake removed, except for adjustment. Removal of such parts could create a fire hazard. Do not use flammable solutions to clean the air filter.
  • Always check fuel lines and fittings frequently for cracks or leaks, replace if necessary.

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. We provide all DR®Field and Brush Mowers shipped to California and Washington State with spark arresters. Failure of the owner/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.

Troubleshooting

Walk Behind Models

A guide to solving common problems with your DR® Field and Brush Mower.

Most problems are easy to fix. Consult the Troubleshooting Table below for common problems and their solutions. If you continue to experience problems, you can contact our Technical Support Specialists for more detailed support.

Before performing any maintenance procedure, stop the engine, wait five (5) minutes to allow all parts to cool, disconnect the spark plug wire(s), keeping it away from the spark plug(s). Read the safety considerations section of your Owner's Manual before performing any repairs or maintenance.

Recoil will not pull out or is difficult to pull. (If equipped)

  • Make sure the Blade Control Lever is properly adjusted and in the released position.
  • Check the Engine oil level, adjust as needed. If the level is too low, then Engine may be seized.
  • There may be an oil compression lock in the Cylinder. Take out the Spark Plug; hold a rag over the Spark Plug hole and pull the Recoil Cord several times to blow out any oil in the Cylinder. Wipe off the Spark Plug and reinstall it.
  • The Recoil may be broken or jammed. If you experience this problem, further troubleshooting is needed. Our Technical Service Specialists can assist in a more in-depth diagnosis.

The Engine turns over, but does not start.

  • Make sure the Spark Plug Wire is attached.
  • Make sure the Key is in the START position.
  • If the Engine is cold, push the Primer Bulb 3 to 4 times (if equipped) or choke engine.
  • The gas must be fresh and clean. If the gas is old, change it. Use an enzyme treatment if you keep gas longer than one month.
  • Check the Throttle adjustment and travel.
  • Make sure Blade Engagement Control Lever is in the down position.
  • Make sure the Spark Plug is clean. If the Spark Plug is dirty or cracked, change it. If it's oily, leave it out, hold a rag over the Plug hole and pull the Recoil Cord several times to blow out any oil in the Cylinder, then wipe off the Plug and reinsert it.
  • Make sure the wiring is all connected and the connections are tight.
  • Check that the Fuel Shut-Off Valve is turned ON, if your machine is equipped with one.
  • Check the Fuel Filter to see if it is clear (if equipped). Place a can under the Fuel Filter and remove the fuel line from the engine side of the Filter. If gas flows freely, it's okay.
  • Make sure the Blade Engage/Disengage Switch (or Blade Control Lever) is pushed DOWN to the Disengaged position and the Shift Lever is in NEUTRAL.
  • If you continue to experience problems, further troubleshooting is needed. Our Technical Service Specialists can assist in a more in-depth diagnosis.

    (Please refer to the Engine Owner's Manual for engine-specific procedures.)

The Engine will not start using electric-start.

  • Review the "Electric Starting" section in your Owner's Manual.
  • There is a fuse in the wiring harness. Check the fuse and replace if needed.
  • Check the wire connections - especially the ground connection, the large black wire coming from the battery, where it connects to the engine.
  • Check the wire connections to the solenoid. Disconnect the black battery ground wire first to avoid sparks. Make sure that all of the connections are clean and tight. Reconnect the battery ground wire.
  • Check the ground connection on the solenoid where it is bolted to the frame. Using a wrench or socket, tighten the bolts to ensure a good connection to the frame.
  • The Battery may not be charged. Check the voltage yourself or at a service station. If the voltage is low, charge the battery with a 12-volt, 1- to 2-amp trickle charger. If you don't run your machine for at least 45 minutes at a time, the Battery may need to be periodically charged. See the Battery Care section in your Owner's Manual.
  • If you continue to experience problems, further troubleshooting is needed. Our Technical Service Specialists can assist in a more in-depth diagnosis.

    (Please refer to the Engine Owner's Manual for engine-specific procedures.)

The Engine lacks power or is not running smoothly.

  • Check the Throttle Lever travel and adjustment. Make sure Throttle Lever in the Run position.
  • Check the air filter. If it is dirty, clean or replace it following the procedure in the Engine Owner's Manual.
  • Check spark plug(s). If it is dirty or cracked, change it. If it's oily, leave it out, hold a rag over the plug hole(s) and crank the Engine over a couple of times using the Electric Starter or pull your recoil cord several times (if equipped) to blow out any oil in the cylinder. Then wipe off the plug(s) and reinsert it.
  • The gas must be fresh and clean. If the gas is old, change it. Use an enzyme treatment if you keep gas longer than one month.
  • The Engine may not have the right amount of clean oil. If the oil is dirty, change it following the procedure in your Owner's Manual.
  • If you continue to experience problems, further troubleshooting is needed. Our Technical Service Specialists can assist in a more in-depth diagnosis.

    (Please refer to the Engine Owner's Manual for engine-specific procedures.)

The Engine smokes.

  • Check the oil level and adjust as needed.
  • You may be operating the machine on too great an incline. See Slope Operation in your Owner's Manual.
  • Check the air filter. If it is dirty, clean or replace it following the procedure in the Engine Owner's Manual.
  • 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 if they're dirty.
  • If you continue to experience problems, further troubleshooting is needed. Our Technical Service Specialists can assist in a more in-depth diagnosis.

Difficulty shifting the Machine into reverse.

  • If you find it difficult to shift into reverse, lightly pull the Clutch Lever as you pull the Shift Lever into Reverse then quickly release the Clutch Lever.
  • If you continue to experience problems, further troubleshooting is needed. Our Technical Service Specialists can assist in a more in-depth diagnosis.

The Belt frays or rolls over the Pulley.

  • A Pulley groove may be nicked. Check the Belt for wear and hard spots. File off any nicks on the pulley.
  • The Belt may be stretched, replace it.
  • If you continue to experience problems, further troubleshooting is needed. Our Technical Service Specialists can assist in a more in-depth diagnosis.

The cut material is not being properly discharged out of the right side of the machine.

  • The Discharge Chute may be blocked. Disengage the Blade, turn OFF the Engine, set the Parking Brake and disconnect the Spark Plug wire(s); then check for debris.
  • If you continue to experience problems, further troubleshooting is needed. Our Technical Service Specialists can assist in a more in-depth diagnosis.

Heavier growth hangs up under the machine and does not discharge.

  • Loosen the Baffle under the front of the Mowing Deck and remove any debris. Be sure to turn OFF the engine and remove the spark plug wire(s) before performing this operation.

Blade vibrates when engaged.

  • The Blade may not be seated properly on the Hub. Loosen the Blade Nut, reseat the Blade, and tighten the Nut. Be sure to turn OFF the Engine and remove the Spark Plug wire(s) before performing this operation.
  • The Spindle Bearings may be worn or damaged.
  • If you continue to experience problems, further troubleshooting is needed. Our Technical Service Specialists can assist in a more in-depth diagnosis.

The Blade is not cutting or is loose.

  • The Blade may not be seated properly on the Hub. Loosen the Blade Nut, reseat the Blade, and tighten the Nut. Be sure to turn OFF the Engine and remove the Spark Plug wire(s) before performing this operation.
  • Sharpen the Blade; it may be dull or nicked.
  • If you continue to experience problems, further troubleshooting is needed. Our Technical Service Specialists can assist in a more in-depth diagnosis.

The Machine is pulling left or right.

  • Check the tire pressure. Refer to your Owner's Manual for the correct PSI.

The Wheels will not drive.

  • Make sure the Shear-Bolt on the Drive Shaft is in place and not broken. If necessary, replace the Shear-Bolt and Nut with one of the spares supplied.
  • The Wheel Clutch is out of adjustment. See your Owner's Manual.
  • The Drive Belt is broken. Replace the Drive Belt. See your Owner's Manual.
  • The Drive Chain is broken. Replace the Drive Chain. See your Owner's Manual.
  • If you continue to experience problems, further troubleshooting is needed. Our Technical Service Specialists can assist in a more in-depth diagnosis.

The Wheel Drive Clutch and/or Brake lever freezes up during cold weather operation.

  • Moisture is getting into the Cable housing(s) and freezing. Using a lubricating syringe, inject "dry gas" into the Cable-Housing opening to absorb the moisture. Tip the machine forward slightly so the "dry gas" will flow down the inside of the Housing. After the ice blockage has thawed, lubricate the cable(s) with Fluid Film or a comparable lubricant. See your Owner's Manual.
  • If you continue to experience problems, further troubleshooting is needed. Our Technical Service Specialists can assist in a more in-depth diagnosis.

The Blade will not Engage and/or Disengage.

  • Be sure you are holding down on the Operator Presence Lever
  • Faulty Blade Control Switch. Remove and replace the Switch on the Control Panel.
  • An open and/or shorted Blade Control Wiring Harness. Remove and replace the Blade Control Wiring Harness and Solenoid.
  • If you continue to experience problems, further troubleshooting is needed. Our Technical Service Specialists can assist in a more in-depth diagnosis.

The Differential Lock In/Out will not unlock (stays in the Lock in position).

  • Grass and debris has probably accumulated on the Differential Lock In/Out Sleeve. Clean and lubricate the Sleeve. See your Owner's Manual.
  • The Differential Lock In/Out Cable is broken or out of adjustment. See your Owner's Manual.
  • If you continue to experience problems, further troubleshooting is needed. Our Technical Service Specialists can assist in a more in-depth diagnosis.

The Differential Lock In/Out will not lock in (stays in the Lock Out position).

  • The Differential Lock In/Out Cable is broken or out of adjustment. See your Owner's Manual.
  • If you continue to experience problems, further troubleshooting is needed. Our Technical Service Specialists can assist in a more in-depth diagnosis.

Tow Behind Models

A guide to solving common problems with your DR® Field and Brush Mower.

Most problems are easy to fix. Consult the Troubleshooting Table below for common problems and their solutions. If you continue to experience problems, you can contact our Technical Support Specialists for more detailed support.

When performing any adjustment or maintenance, you must first shut off the engine, wait five (5) minutes to allow parts to cool and disconnect the spark plug wire(s), keeping it away from the spark plug(s). Read the safety considerations section of your Owner's Manual before performing any repairs or maintenance.

The Engine will not start.

  • Review the Starting procedure section in your Owner's Manual.
  • Make sure the Blade Control Knob is pushed DOWN to the disengaged position.
  • Make sure the Spark Plug wire(s) is attached.
  • If the Engine is cold, make sure the Throttle is in the CHOKE position.
  • The gas must be fresh and clean. If the gas is old, change it. Use anenzyme treatment if you keep gas longer than one month.
  • Check the Throttle adjustment and travel.
  • Check Spark Plug(s). If it is dirty or cracked, replace it. If the Spark Plug(s) is oily, leave it out, hold a rag over the Plug hole(s) and crank the Engine a couple of times using the Electric Starter to blow out any oil in the Cylinder(s). Wipe off the Plug(s) and reinsert it.
  • If the Air Filter is dirty, change it following the procedure in the Engine Owner's Manual.
  • There are two (2) Fuses in the Wiring Harness. Check the Fuses and replace if needed.
  • Check the wire connections - especially the ground connection, the large green wire coming from the Battery, where it connects to the Engine.
  • The Battery may not be charged. Check the voltage yourself or at a service station. If the voltage is low, charge the battery with a 12-volt, 1- to 2-amp trickle charger. If you don't use your machine for at least 45 minutes at a time, the Battery may need to be periodically charged. See the Battery Care section in your Owner's Manual.
  • If you continue to experience problems, further troubleshooting is needed. Our Technical Service Specialists can assist in a more in-depth diagnosis.

    (Please refer to the Engine Owner's Manual for engine-specific procedures.)

The Engine lacks power or is not running smoothly.

  • Check the Throttle Lever travel and adjustment. Make sure the Throttle Lever is in the Run position.
  • If the Air Filter is dirty, change it following the procedure in the Engine Owner's Manual.
  • Check Spark Plug(s). If it is dirty or cracked, replace it. If the Spark Plug(s) is oily, leave it out, hold a rag over the Plug hole(s) and crank the Engine over a couple of times using the Electric Starter to blow out any oil in the Cylinder(s), then wipe off the Plug(s) and reinsert it.
  • The gas must be fresh and clean. If the gas is old, change it. Use an enzyme treatment if you keep gas longer than one month.
  • The Engine may not have the right amount of clean oil. If the oil is dirty, change it following the procedure in your Owner's Manual.
  • If you continue to experience problems, further troubleshooting is needed. Our Technical Service Specialists can assist in a more in-depth diagnosis.

    (Please refer to the Engine Owner's Manual for engine-specific procedures.)

Engine smokes.

  • Check the oil level and adjust as needed.
  • You may be operating the machine on too great an incline. See "Slopes and Uneven Terrain" in your Owner's Manual.
  • Check the Air Filter(s) 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 Cooling Fins and the Carburetor housing if they are dirty.
  • If you continue to experience problems, further troubleshooting is needed. Our Technical Service Specialists can assist in a more in-depth diagnosis.

The Belt frays or rolls over the Pulley.

  • There may be a nick in a Pulley groove. Check the Belt for wear and hard spots. File off any nicks on the Pulley.
  • The Belt may be stretched; replace it. See your Owner's Manual.

Blades vibrate when engaged.

  • The Blade Carrier Mounting Bolt may not be tight enough. Tighten the Bolt as tight as possible by hand with at least a 1ft long 13/16" Wrench.
  • A Swinging Blade may be too loose on the Blade Carrier. Re-tighten the Swinging Blade mounting hardware. See your Owner's Manual.
  • Replace a Swinging Blade if it is chipped, bent, or broken.
  • The Spindle Bearings may be damaged or the Spindle Shaft is bent.
  • If you continue to experience problems, further troubleshooting is needed. Our Technical Service Specialists can assist in a more in-depth diagnosis.

The Blades are not cutting or are loose.

  • The Blade Carrier Mounting Bolt may not be tight enough. Tighten the Bolt as much as possible by hand with at least a 1-foot long 13/16" Wrench.
  • A Swinging Blade may be too loose on the Blade Carrier. Re-tighten the Swinging Blade mounting hardware. See your Owner's Manual.
  • Sharpen the Swinging Blades; they may be dull or nicked.

The Blades will not engage and/or disengage.

  • Faulty Blade Control Switch. Remove and replace the Switch on the Remote Control Panel.
  • Faulty Electric Clutch. If you experience this problem, further troubleshooting is needed. Our Technical Service Specialists can assist in a more in-depth diagnosis.

Uneven Cut.

  • The Step & Mow™ Height Adjuster and Versa-Hitch™ position are out of sync. Adjust the cutting height or Versa-Hitch™ position so the Out-Rigger Tow Bar is level with the ground.
  • Left and Right Step & Mow™ Height Adjusters are not at the same setting.

Clogging at discharge.

  • The Step & Mow™ Height Adjuster and Versa-Hitch™ position are out of sync. Adjust the cutting height or Versa-Hitch™ position so the Out-Rigger™ Tow Bar is level with the ground.
  • If you continue to experience problems, further troubleshooting is needed. Our Technical Service Specialists can assist in a more in-depth diagnosis.

Excessive Engine stalling.

  • The material being cut may be too thick or heavy for the cutting height and/or the Tow Vehicle speed. Raise the cutting height and drive slower when cutting.
  • If you continue to experience problems, further troubleshooting is needed. Our Technical Service Specialists can assist in a more in-depth diagnosis.

Maintenance

Walk Behind Models

Regular maintenance is the way to ensure the best performance and long life of your DR® Field and Brush Mower.

Please refer to your Owner's Manual and the Engine Owner's Manual for maintenance procedures. Service intervals listed in the checklist below supersede those listed in the Engine Owner's Manual.

Some of the following procedures require access to the underside of the machine. If you need to tip the machine back or on its side (with the discharge chute facing up), you must first disconnect the spark plug wire(s), drain the oil and gas, and remove the air filters.

Regular Maintenance Checklist

Procedure Before Each Use Every 25 hours Every 100 hours
Check Operator Presence Switch
Check Engine Oil Level
Check General Equipment Condition
Check Blade for Sharpness
Lubricate Wheel and Blade Clutch Levers*
Lubricate Chain* and Clean around Idlers
Lubricate Lock In/Out Sleeve*
(All models except Scout model)
Check Tire Pressure
Change Engine Oil and Filter**
Note: First time after five (5) hours of operation.
Check Parking Brake Adjustment
Clean Engine Exterior and Cooling Fins
Check all Belt Tensions and Condition
Check Cable connections
Replace Air Filter and Pre-Cleaner**
Replace Spark Plug(s)
Replace In-line Gas Filter
Replace Blade

* FLUID FILM lubricant or SAE 30 oil; NEVER use penetrating oil. (Scout Model only uses SAE 30 Oil.)

**The Engine on your DR may not have a Pre-Cleaner or Oil Filter.

Note: Consider that service intervals show to be maximum under normal operating conditions. Increase frequencies under extremely dirty or dusty conditions.

Tow Behind Models

Regular maintenance is the way to ensure the best performance and long life of your DR® Field and Brush Mower.

Please refer to your Owner's Manual and the Engine Owner's Manual for maintenance procedures. Service intervals listed in the checklist below supersede those listed in the Engine Owner's Manual.

Some of the following procedures require access to the underside of the machine. If you need to tip the machine back or on its side, you must first disconnect the spark plug wire(s), and drain the oil and gas.

Regular Maintenance Checklist

Procedure Before Each Use Every 10
hours
Every
25 hours
Every 100
hours
Check Engine Oil Level
Check General Condition, e.g. nuts, bolts, welds, etc.
Check the Blades Sharpness
Clean Engine Exterior and Cooling Fins
Check Cable connections
Check Tire Pressure
Change Engine Oil and Filter
Note: First time after five (5) hours of operation.
Replace Air Filter
Replace Spark Plug(s)
Replace In-line Gas Filter
Replace Blade

Note: Consider that service intervals shown to be maximum under normal operating conditions. Increase frequencies under extremely dirty or dusty conditions.

End of Season and Storage

The following information is provided to demonstrate proper techniques when storing your DR® Field and Brush Mower.

Note: Please refer to the Engine Owner's Manual for engine-specific procedures.

Warning: Before performing any maintenance procedure, stop the engine, wait five (5) minutes for all parts to stop and cool. Disconnect the spark plug wire, keeping it away from the spark plug.

End-of-Season Procedure

  • Change the Engine oil (and oil filter, if applicable). For winter use, use SAE 5W - 30 HD.
  • Remove the spark plug(s) and pour about 1 ounce of motor oil into the Cylinder hole. Replace the Plug and pull the Recoil Starter Rope (if equipped) or crank the Engine over using the Electric Start. This will coat the piston and seat the valves to prevent moisture buildup.
  • Clean/replace the Air Filter(s).
  • Clean dirt and debris from the Cylinder Head Cooling Fins, Blower Housing, Debris Screens, and Muffler area of the Engine.
  • If your Engine has a Fuel Filter, replace it.
  • Remove any wrapped weeds from the Blade Bearing Housing. Clean grass and debris from the top and underneath the mower Deck with a stiff brush.
  • Check the Blade(s) for nicks and wear. Remove the Blade(s) and sharpen, or have it professionally sharpened if needed.
  • Perform the lubrication as outlined in your Owner's Manual.
  • Touch up all rusted or chipped paint surfaces. Sand them lightly before painting.
  • Be sure all nuts, bolts, and screws are securely fastened.
  • Inspect moving parts and the Blade(s) Drive Belt for damage and wear; replace if necessary.
  • Store the battery in a dry area that will not freeze. If you will not use the machine over a long period, charge the battery every four to six weeks. See your Owner's Manual for Battery Care.
  • If your machine will be idle for more than 30 days, we recommend using a gas stabilizer. This will prevent sediment from gumming up on 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.
  • If possible, store your machine inside, but not near an open flame or spark such as found in a water heater.
  • After the machine has cooled, cover the machine with a suitable protective cover that does not retain moisture. Do not use plastic as this material cannot breathe; it also allows condensation to form, which will cause your machine to rust.

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