Product Support
DR® Roto-Tillers
We want to help you keep your DR® Roto-Tiller 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, please call or email one of our Specialists during our business hours.
Ordering Parts
The best way to order parts is to use our online parts ordering tool at the link below.
Find parts for all Roto-TillersOwner'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 phone or email.
Please Note: Parts Lists and Schematics are located in the back of the Owner's Manual.
Troubleshooting (Tow-Behind Models)
A guide to solving common problems with your DR® Tow-Behind Roto-Tiller.
Most problems are easy to fix. Consult the troubleshooting table below for common problems and their solutions.
When performing any maintenance, you must first shut off the tow vehicle, set the parking brake and disconnect power from the battery of the DR® Roto-Tiller by separating the fuse holder. 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
- Check that the tine drive clutch is disengaged.
- 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.
- Try to turn the engine pulley by hand, with the spark plug wire off. If it turns, the recoil may be broken or jammed.
The engine turns over, but does not start.
- Check that the tine drive clutch is disengaged
- Make sure the spark plug wire is attached.
- Make sure the fuel shut-off is in the ON position.
- Check the oil and gas level. See your Owner's Manual.
- The gas must be fresh and clean. If the gas is old, change it. Use DR® Ethanol Fuel Treatment if you keep gas longer than one month.
- Check the throttle and choke settings, adjustment and travel.
- 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 the air filter. If it is dirty, replace it following the procedure in the engine Owner's Manual.
- 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.
- Check the In-Line Fuses in front of the Battery. See your Owner's Manual.
- Check the wire connections, especially the ground connection. This is the large black wire leading from the Battery, and connected 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.
- 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 FAST position.
- Check the air filter. If it is dirty, replace it following the procedure in the engine Owner's Manual.
- 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.
- The gas must be fresh and clean. If the gas is old, change it. Use DR® Ethanol Fuel 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.
- Please refer to the Engine Owner's Manual for engine-specific procedures.
The engine smokes
- Check the oil level and adjust as needed.
- 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 and the carburetor housing if they're dirty.
The engine runs well but the tines won't move
- The tine drive clutch is not engaged.
- The tine drive V-belt is off the pulleys or broken. See your Owner's Manual.
The engine runs well but labors when tilling
- Operator is being too aggressive; raise the tines.
- Be sure the engine throttle is set on the Fast (RABBIT) position.
The machine is pulling left or right
- Check the tire pressure. Check tire pressures and be sure not to exceed the maximum safe pressure marked on the tires by the manufacturer.
Excessive bounce and difficult handling
- The area you are tilling may be too dry and hard. Moisten the ground or wait for conditions that are more favorable.
- Be sure the engine throttle is set on the Fast (RABBIT) position.
The tilled soil balls up or clumps.
- The ground that you are trying to till is too moist. See Tilling Tips in your Owner's Manual or visit our Tips & Tricks.
Troubleshooting (Walk-Behind Models)
A guide to solving common problems with your DR® Walk-Behind Roto-Tiller.
Most problems are easy to fix. Consult the troubleshooting table below for common problems and their solutions.
Practice safety at all times. Engine must be turned off and allowed to cool and spark plug wire must be disconnected and secured before attempting any maintenance or repair. 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
- 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.
- Try to turn the engine pulley by hand, with the spark plug wire off. If it turns, the recoil may be broken or jammed.
The engine turns over, but does not start.
- Make sure the spark plug wire is attached.
- Make sure the fuel shut-off is in the ON position.
- Check the oil and gas level. See your Owner's Manual.
- The gas must be fresh and clean. If the gas is old, change it. Use DR® Ethanol Fuel Treatment if you keep gas longer than one month.
- Check the throttle and choke settings, adjustment and travel.
- 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.
- Check the air filter. If it is dirty, replace it following the procedure in the engine Owner's Manual.
- Please refer to the Engine Owner's Manual for engine-specific procedures.
The engine lacks power or is not running smoothly.
- Make sure throttle lever in the FAST position.
- Check the air filter. If it is dirty, replace it following the procedure in the engine Owner's Manual.
- 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.
- The gas must be fresh and clean. If the gas is old, change it. Use DR® Ethanol Fuel 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.
- Please refer to the Engine Owner's Manual for engine-specific procedures.
The engine smokes
- Check the oil level and adjust as needed.
- 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 and the carburetor housing if they're dirty.
The engine runs well but the tines won't move
- The tine drive V-belt is off the pulleys or broken. See your Owner's Manual.
- The tine engagement cable is broken or out of adjustment. See your Owner's Manual.
The engine runs well but labors when tilling
- Operator is being too aggressive; raise the tines.
- Be sure the engine throttle is set on the FAST position.
The machine is pulling left or right (Rear Tine Model)
- Check the tire pressure. Check tire pressures and be sure not to exceed the maximum safe pressure marked on the tires by the manufacturer.
- One of the wheel lock pins may be missing, allowing the wheel to spin freely on the axle.
Belts squeal in neutral
- Adjust forward belt guide:
- turn engine off and allow muffler to cool
- disconnect spark plug wire and secure from spark plug
- pull down on drive safety control lever
- manually bend forward belt guide so there is 1/16 inch or less clearance between belt guide and belt
- replace spark plug wire
Belts squeal in forward operation
- Turn engine off and allow muffler to cool.
- Disconnect spark plug wire and secure from spark plug.
- Release drive safety control lever to neutral.
- Adjust engage cable.
- Replace spark plug wire.
The tilled soil balls up or clumps.
- The ground that you are trying to till is too moist. See Tilling Tips in your Owner's Manual or visit our Tips & Tricks.
Frequently Asked Questions (Tow-Behind Models)
Q: What type of tow vehicle do I need?
A: The DR® Tow-Behind Roto-Tiller can be towed by an ATV, riding mower or utility tractor.
Q: How wide and deep does the Tow-Behind Roto-Tiller till?
A: The Tow-Behind Roto-Tiller will till a path 3-feet wide and up to 7.5" deep.
Q: What does the remote control do?
A: The remote control allows you to raise or lower the tines, turn the Spreader Attachment on and off, and raise/lower the Culti-packer Attachment.
Q: Can the Tow-Behind Roto-Tiller be used for building food plots?
A: Yes. Towed by your ATV or small tractor, the Tow-Behind Roto-Tiller can easily be transported to areas where you'd like to plant a food plot to attract wildlife. The powered tines prepare deep, ready-to-plant seedbeds - in a fraction of the time compared to non-powered, drag-behind disc units. Using non-powered food plot equipment requires dozens of passes just to scratch the surface of the soil. These machine take a huge amount of power to drag them, putting tremendous strain on your towing vehicle.
Q: How easy is it to start?
A: The electric-starting model with automotive-style turn-key ignition and 12-volt battery are very easy to start. Just turn the key and you're ready to go. (The battery recharges as the engine runs.) The manual-starting model, with compression release and electronic ignition, starts with one or two easy pulls.
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: Our knowledgeable representatives have an extensive understanding of the DR® Tow-Behind Roto-Tiller 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 our authorized DR® Service Centers nationwide.
Q: How does your 6 Month Hands-On Trial work?
A: We are so confident 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, for a full refund, less shipping to and from your delivery location. See more information here.
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.
Frequently Asked Questions (Walk-Behind Models)
Q: How wide and deep wil the DR® Walk-Behind Roto-Tiller till?
A: The Front Tine Model is adjustable for widths of 11", 16" and 21" and will till up to 11" deep; The Rear Tine Model will till 16" wide and up to 11" deep.
Q: How easy is it to start?
A: With a compression release and electronic ignition, DR Power Tillers start with one or two easy pulls.
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: Our knowledgeable representatives have an extensive understanding of the DR® Tow-Behind Roto-Tiller 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 our authorized DR® Service Centers nationwide.
Q: How does your 6 Month Hands-On Trial work?
A: We are so confident 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, for a full refund, less shipping to and from your delivery location. See more information here.
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 (Tow-Behind Models)
The following information is provided to demonstrate proper techniques when operating your DR® Tow-Behind Roto-Tiller.
Note: This information pertains to the most recent DR® Tow-Behind Roto-Tillers. Please refer to your Owner's Manual for instructions specific to your machine. Please refer to the engine Owner's Manual for engine specific instructions.
Wear shoes with non-slip treads when using your machine. 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 might catch on the machine's moving parts.
Use ear protectors or ear plugs rated for at least 20 dBA to protect your hearing.
Read the safety considerations section of your Owner's Manual before operating the DR® Tow-Behind Roto-Tiller.
Tilling
- In compacted soil or sod, or in food plot and sod busting applications, several passes may be necessary to till to a depth of seven (7) inches. For the first pass, just scratch the surface. The depth for each successive pass needs to be determined by individual site and soil conditions. If the machine stalls repeatedly, you should till slower or not as deep.
- Check the ground moisture. Do not till if you can make a ball of soil in your hand from the ground to be tilled; it is too wet. Create full tillage (depths up to 7") after entire area is dry.
- To obtain the most efficient tillage, operate the DR® Tow-Behind Roto-Tiller engine at full throttle at the slowest speed of your tow vehicle.
- When operating the machine for the first time, proceed slowly and carefully until you become familiar with the proper method of operating the machine.
- Soil conditions will determine how deep the machine can penetrate on the first pass.
- In damp soil, till only the top inch of seedbed. Allow tillage to dry for several hours in sunny and/or windy conditions.
- Listen to your DR® Tow-Behind Roto-Tiller engine. When the engine RPM decreases or stalls (overloaded condition) raise the Tines for shallower tilling. If the engine is lightly loaded, lower the tines to increase the tilling depth.
- If the soil is extremely hard and dry, it may be desirable to "cross till" an area at a shallow depth first, then till the soil in the direction of planting rows on subsequent passes until the desired tillage is obtained.
Where possible, we recommend that you till in a pattern similar to shown.
- Make the first pass.
NOTE: If you raise the tines at the end of a pass, use care to lower them back to the same depth. Tilling too deep on the first pass may cause the Tiller to stall or break shear pins. - Skip a space equal to the width of the machine.
- Make the return pass.
- Till the skipped areas.
- Make the first pass.
Cultivating
- You can use the DR® Tow-Behind Roto-Tiller for cultivating (Figure 17), which requires a minimum of two (2) inches of soil penetration.
- Set the tines so they will penetrate the soil to a depth of two (2) to three (3) inches.
- Run the DR® Tow-Behind Roto-Tiller engine at full throttle.
Handling and Transporting (Tow-Behind Models)
We recommend using two (2) people to lift the DR® Tow-Behind Roto-Tiller. Lift the machine by the SMOOTH-TRAK™ Hitch to connect and disconnect from your tow vehicle. To transport the machine with your tow vehicle, first raise the tines to the MAX position (lower the wheels) using the control box.
Never lift the machine while the engine is running.
Note: The DR® Tow-Behind Roto-Tiller is not equipped for towing on any public roadway. When towed, the maximum safe towing speed is 10 mph.
Tips & Tricks (Walk-Behind Models)
The following information is provided to demonstrate proper techniques when operating your DR® Walk-Behind Roto-Tiller.
Note: This information pertains to the most recent DR® Walk-Behind Roto-Tillers. Please refer to your Owner's Manual for instructions specific to your machine. Please refer to the engine Owner's Manual for engine specific instructions.
Wear shoes with non-slip treads when using your machine. 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 might catch on the machine's moving parts.
Use ear protectors or ear plugs rated for at least 20 dBA to protect your hearing.
Read the safety considerations section of your Owner's Manual before operating the DR® Walk-Behind Roto-Tiller.
Tilling
- In compacted soil or sod, or in food plot and sod busting applications, several passes may be necessary to till to a depth of eleven (11) inches. For the first pass, just scratch the surface. The depth for each successive pass needs to be determined by individual site and soil conditions. If the machine stalls repeatedly, you should till slower or not as deep.
- Check the ground moisture. Do not till if you can make a ball of soil in your hand from the ground to be tilled; it is too wet. Create full tillage (depths up to 11") after entire area is dry.
- To obtain the most efficient tillage, operate the DR® Walk-Behind Roto-Tiller engine at full throttle at the slowest speed of your tow vehicle.
- When operating the machine for the first time, proceed slowly and carefully until you become familiar with the proper method of operating the machine.
- Soil conditions will determine how deep the machine can penetrate on the first pass.
- In damp soil, till only the top inch of seedbed. Allow tillage to dry for several hours in sunny and/or windy conditions.
- Listen to your DR® Walk-Behind Roto-Tiller's engine. When the engine RPM decreases or stalls (overloaded condition) raise the Tines for shallower tilling. If the engine is lightly loaded, lower the tines to increase the tilling depth.
- If the soil is extremely hard and dry, it may be desirable to "cross till" an area at a shallow depth first, then till the soil in the direction of planting rows on subsequent passes until the desired tillage is obtained.
Where possible, we recommend that you till in a pattern similar to shown.
- Make the first pass.
- Skip a space equal to the width of the machine.
- Make the return pass.
- Till the skipped areas.
Cultivating
- You can use the DR® Walk-Behind Roto-Tiller for cultivating (Figure 17), which requires a minimum of two (2) inches of soil penetration.
- Set the tines so they will penetrate the soil to a depth of two (2) to three (3) inches.
- Run the DR® Walk-Behind Roto-Tiller engine at full throttle.
Safety Information
Important safety information regarding your DR® Roto-Tiller
Read the Safety and Operating Manual before you use the DR® Roto-Tiller. Become familiar with the operation and service recommendations to ensure the best performance from your machine. (Our most recent manuals are available as a PDF download.)
Safety Rules
Labels
- Your DR® Roto-Tiller 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® Roto-Tiller 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. You must operate the machine safely. Unsafe operation can create a number of hazards for you. Always take the following precautions when operating this machine:
- Always wear protective goggles or safety glasses with side shields to protect your eyes from possible objects thrown from the machine
- Wear shoes with non-slip treads when using your DR® Roto-Tiller. 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® Roto-Tiller. Be sure your 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.
- Allow only responsible individuals who are familiar with these general safety rules and operating instructions to use your DR® Roto-Tiller. Never allow people who are unfamiliar with these rules of safe operation to use the machine.
- Never place your hands, feet, or any part of your body near or under any moving part while the machine is running.
- Keep bystanders away from your work area at all times. To be safe, do not operate the machine near small children or pets, and never allow children to operate the machine. Stop your Walk-Behind Roto-Tiller or the tow vehicle and the DR® Tow-Behind Roto-Tiller engine when another person or pet approaches.
- Do not touch the exhaust area, including the muffler and engine when the machine is in use as they become very hot and can cause a severe burn. Allow the engine to cool before doing maintenance or making adjustments.
- Clear the work area of objects that might jam or wrap around the tines such as glass, large sticks, stones, metal objects, wire, rope, and string-like materials. use on these objects could damage the DR® Roto-Tiller and/or cause injury.
- Do not use this machine around large roots and surface rocks that you cannot remove.
- Do not use this machine around underground pipes and wiring.
- If the DR® Tow-Behind Roto-Tiller engine should stall, raise the tines out of the soil and disengage them. Never engage the tines when they are in the ground.
- Never, under any conditions, remove, bend, cut, fit, weld, or otherwise alter standard parts on the DR® Roto-Tiller. This includes all shields and guards. Modifications to your machine could cause personal injuries and property damage and will void your warranty.
Slope operation (Tow-Behind and Walk-Behind Models)
Use of machinery on slopes is a major factor related to accidents, which can result in severe personal injury. Use of machinery on slopes requires caution. If you feel uneasy using the DR® Roto-Tiller on a slope, do not operate it. Always take the following precautions when using this machine on slopes:
- Always exercise extreme caution when changing direction on slopes.
- Always watch for holes, ruts, or bumps in the landscape.
- Never operate near drop-offs, ditches, or embankments; you could lose control of your tow vehicle and/or the DR® Roto-Tiller.
- Never operate on slopes greater than 5 degrees, or any excessively steep slopes.
- Never operate on wet, or slippery slopes; reduced traction could result in tipping over your tow vehicle and/or the DR® Roto-Tiller.
- Never park the tow vehicle and/or the DR® Roto-Tiller on a steep grade or slope.
Safety for children and pets
Tragic accidents can occur if the operator is not alert to the presence of children or pets. Children are often attracted to the machine and its tilling activity. Never assume that children will remain where you last saw them. Always follow these precautions:
- Keep children and pets out of the work area and ensure they are under the watchful care of a responsible adult.
- Be alert and always turn off your tow vehicle, the DR® Tow-Behind Roto-Tiller engine or DR® Walk-Behind Roto-Tiller engine if children or pets enter the work area.
- Before, and while moving your tow vehicle backwards, look behind, and down for small children.
- Never allow children to operate the DR® Roto-Tiller.
- Use extra care when approaching blind corners, shrubs, trees, or other objects that may obscure your vision.
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.
- Always check fuel lines and fittings frequently for cracks or leaks. Replace when worn or damaged and after 5 years of use.
- 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 before storing the DR® Roto-Tiller 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. Shut down the engine, disconnect the spark plug wire, keeping it wire away from the spark plug to prevent accidental starting, then wait 5 minutes before making adjustments or repairs.
- Never check for an ignition spark with the spark plug or spark plug wire removed. Always use an approved spark plug tester.
- Never tamper with safety devices. Check their proper operation regularly/
- To reduce fire hazard, keep the engine cooling fan and muffler area free of debris build-up such as leaves, grass, oil, grease or any other combustible material.
- 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.
- Never operate the engine without the muffler. Inspect the muffler periodically and replace if necessary. If equipped with a muffler deflector, inspect the deflector periodically and replace if necessary.
- 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 air filter.
- Always check fuel lines and fittings frequently for cracks or leaks, replace if necessary.
- Replace rubber fuel lines and grommets when worn or damaged, but do not use over five (5) years.
Additional information and potential changes
DR® Power Equipment reserves the right to discontinue, change, and improve its products at any time without alert alert-info 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.
General Safety
The DR® Roto-Tiller must be operated safely 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:
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 arrestor. This also applies to operation on US Forest Lands. We provide all DR® Roto-Tillers shipped to New Mexico, California and Washington State with spark arrestors. 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, Inc. reserves the right to discontinue, change, and improve its products at any time without alert alert-info 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.
Maintenance (Tow-Behind Models)
Regular maintenance is the way to ensure the best performance and long life of your DR® Tow-Behind Roto-Tiller.
Note: This information pertains to the most recent Tow-Behind Roto-Tiller models. Please refer to your Owner's Manual for instructions specific to your machine. Please refer to the engine Owner's Manual for engine specific instructions.
When performing any maintenance, you must first shut off the engine, wait five (5) minutes for all parts to stop and cool, and disconnect the spark plug wire, keeping it away from the spark plug. Read the safety considerations section of your Owner's Manual before performing any repairs or maintenance.
| Procedure | Before Each Use | Every 8-10 hours | Every 35 hours |
|---|---|---|---|
| Check the engine oil level | check | ||
| Clean the tines and debris shield* | After each use | ||
| Check general equipment condition | check | ||
| Check the tines shear pins for wear | check | ||
| Grease the tines shaft | check | ||
| Check battery voltage | check | ||
| Clean air filter | check | ||
| Inspect the tine drive belt for wear | check | ||
| Check tines for wear | check | ||
| Change engine oil | 1st time 5 hrs | check | |
| Replace air filter and pre-cleaner | check | ||
| Replace the tine drive belt | check | ||
| Replace spark plug | check |
Note: Consider that service intervals show to be maximum under normal operating conditions. Increase frequencies under extremely dirty or dusty conditions.
* Cover the engine Muffler, Carburetor, and Air Filter before using a hose to clean the Tines and Debris Shield. Do not use a power washer; this may force water through the seals of the Actuator.
End of Season and Storage
The following information is provided to demonstrate proper techniques when storing your DR® Roto-Tiller.
Note: This information pertains to the most recent DR® Tow-Behind Roto-Tiller models. Please refer to your Owner's Manual for instructions specific to your machine. Please refer to the Engine Owner's Manual for engine specific instructions.
When performing any maintenance, you must first shut off the engine, wait five (5) minutes for all parts to stop and cool, and disconnect the spark plug wire, keeping it away from the spark plug.
End-of-Season Procedure
- Change the engine oil. This will help to eliminate sludge and acids in the engine. For winter use, use SAE 5W-30W oil.
- 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.
- If your DR® Roto-Tiller will be idle for more than 30 days, we recommend using DR® Ethanol Fuel Treatment. 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 fuel treatment. Run the engine for a short time to allow the additive to circulate.
- Clean/replace the engine air filter. Reference the Engine Owner's Manual.
- Clean dirt and debris from the engine cylinder head cooling fins, debris screen, and muffler.
- Clean out residual debris from the under the debris shield and tine assemblies.
- Lubricate the tine assemblies. See 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 tine 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 possible, store your DR® Roto-Tiller inside, but not near an open flame or spark such as found in a water heater.
- After the DR® Roto-Tiller 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.
Maintenance (Walk-Behind Models)
Regular maintenance is the way to ensure the best performance and long life of your DR® Walk-Behind Roto-Tiller.
Note: This information pertains to the most recent Walk-Behind Roto-Tiller models. Please refer to your Owner's Manual for instructions specific to your machine. Please refer to the engine Owner's Manual for engine specific instructions.
When performing any maintenance, you must first shut off the engine, wait five (5) minutes for all parts to stop and cool, and disconnect the spark plug wire, keeping it away from the spark plug. Read the safety considerations section of your Owner's Manual before performing any repairs or maintenance.
| Procedure | Before Each Use | 50 hours or Every Season |
|---|---|---|
| Check belt tension | check | |
| Change forward belt | check | |
| Engine maintenance | check | check |
| Check oil level/change oil | check | 1 |
| Clean tine axle shaft | check | |
| Lubrication | check |
Note: Consider that service intervals show to be maximum under normal operating conditions. Increase frequencies under extremely dirty or dusty conditions.
* Cover the engine Muffler, Carburetor, and Air Filter before using a hose to clean the Tines and Debris Shield.
End of Season and Storage
The following information is provided to demonstrate proper techniques when storing your DR® Roto-Tiller.
Note: This information pertains to the most recent Roto-Tiller models. Please refer to your Owner's Manual for instructions specific to your machine. Please refer to the Engine Owner's Manual for engine specific instructions.
When performing any maintenance, you must first shut off the engine, wait five (5) minutes for all parts to stop and cool, and disconnect the spark plug wire, keeping it away from the spark plug.
End-of-Season Procedure
- Change the engine oil. This will help to eliminate sludge and acids in the engine. For winter use, use SAE 5W-30W oil.
- 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.
- If your DR® Roto-Tiller will be idle for more than 30 days, we recommend using DR® Ethanol Fuel Treatment. 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 fuel treatment. Run the engine for a short time to allow the additive to circulate.
- Clean/replace the engine air filter. Reference the Engine Owner's Manual.
- Clean dirt and debris from the engine cylinder head cooling fins, debris screen, and muffler.
- Clean out residual debris from the under the debris shield and tine assemblies.
- Lubricate the tine assemblies. See 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 tine 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 possible, store your DR® Roto-Tiller inside, but not near an open flame or spark such as found in a water heater.
- After the DR® Roto-Tiller 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.
Warranty
DR® Roto-Tiller 2-Year Limited Warranty - Terms and Conditions
Unless otherwise stated in the materials that arrive with your product, DR® Roto-Tillers are 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 your DR® Roto-Tiller is fit for ordinary purposes for which products of its type are 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 a DR® Roto-Tiller 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 belts, tines, air filters, batteries, shear pins and oil spark plugs. Accessories to the machine are not covered by this warranty.
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 your DR® Roto-Tiller.
SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO THE ABOVE LIMITATIONS MAY NOT APPLY TO YOU.
THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS, AND YOU ALSO HAVE OTHER RIGHTS, WHICH VARY FROM STATE TO STATE.
DR® Mini Tiller 2-Year Limited Warranty - Terms and Conditions
Unless otherwise stated in the materials that arrive with your product, DR® Mini Tillers are 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 your DR® Mini Tiller is fit for ordinary purposes for which products of its type are 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 a DR® Mini Tiller 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 tines, air filters and batteries. Accessories to the machine are not covered by this warranty.
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 your DR® Mini Tiller.
SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO THE ABOVE LIMITATIONS MAY NOT APPLY TO YOU.
THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS, AND YOU ALSO HAVE OTHER RIGHTS, WHICH VARY FROM STATE TO STATE.