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Summary of Contents for Lawn-Boy 520R
- Page 1 Form No. 3326-623 Rev B 520R and 720E Snowthrower Model No. 28225—220000001 and Up Model No. 28226—220000001 and Up Operator’s Manual Domestic English (EN)
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Page 2: Table Of Contents
Installing the Discharge Chute ....Whenever you need service, genuine Lawn-Boy parts, or Installing the Chute Crank .... -
Page 3: Safety
This is the safety alert symbol. It is used to alert recommended by Lawn-Boy. you to potential personal injury hazards. Obey all Let the engine and the snowthrower adjust to the safety messages that follow this symbol to avoid outdoor temperature before starting to clear snow. -
Page 4: Lawn-Boy Snowthrower Safety
Vibration The following list contains safety information specific to is generally a warning of trouble. Lawn-Boy products or other safety information that you must know. Stop the engine whenever you leave the operating position, before unclogging the discharge chute, and Rotating rotor blades can injure fingers or hands. -
Page 5: Safety And Instruction Decals
Safety and Instruction Decals Safety decals and instructions are easily visible to the operator and are located near any area of potential danger. Replace any decal that is damaged or lost. 104-2775 60-9480 61-4790 (Model 28226) 104-2767 104-4135 105-2963 (Model 28225) -
Page 6: Assembly
105-2964 (Model 28226) French translation of U.S. EPA decal text: Ce moteur est conforme Lawn-Boy, Inc. Pour plus de détails sur la à la réglementation sécurité, l’entretien et les Bloomington, MN antipollution Phase EPA réglages, reportez-vous au relative aux moteurs manuel de l’utilisateur. -
Page 7: Unfolding The Handle
Unfolding the Handle 1. Cut the tie that secures the control cable to the handle. 2. Loosen the knobs and pull out the handle locks until the upper handle rotates freely (Fig. 3). 3. Position the upper handle as shown in Figure 2. m-5533/m-2708 Figure 4 1. -
Page 8: Installing The Discharge Chute
Installing the Discharge Chute 2. Align the hole in the back of the chute with the center hole in the ring (Fig. 7). Model 28225 only 3. Install a screw, a washer, and a locknut through the center holes, with the locknut on the outside (Fig. 7). 1. -
Page 9: Before Starting
A fuel stabilizer/conditioner works best when you mix it with fresh gasoline. If you use Lawn-Boy Generation II 2-Cycle In certain conditions, gasoline is extremely Oil (Fuel Stabilizer Added), you do not need to add a fuel flammable and highly explosive. -
Page 10: Filling The Fuel Tank
3. Install the cap on the fuel container. 4. Shake the container to mix the gasoline and oil thoroughly. 5. Slowly remove the cap and add the remaining amount of gasoline. Filling the Fuel Tank Important Do not overfill the fuel tank. The gasoline-and-oil mixture must have room to expand. -
Page 11: Stopping The Engine
Important Running the electric starter extensively can Important Do not use the chute handle to lift the overheat and damage the starter. snowthrower. This can damage the chute handle. If the engine does not start after the second Model 28226 only attempt, bring the snowthrower to an Authorized Service Dealer for service. -
Page 12: Maintenance
Do not attempt to clear snow from a crushed-rock or After clearing the snow, let the engine run for a few gravel surface. This product is intended for use only on minutes to prevent moving parts from freezing. Shut paved surfaces. off the engine, wait for all moving parts to stop, and remove all ice and snow from the snowthrower. -
Page 13: Replacing The Scraper
Note: The control cable must have slack in it when C. Unhook the Z–fitting from the cable adjuster you disengage the control bar. (Fig. 12) and position it in a higher or lower hole on the adjuster to obtain a gap of 1/16 to 1/8 inch 4. -
Page 14: Replacing The Rotor Blades
3. Remove the 3 screws that secure the control panel to the housing (Fig. 15). Figure 17 1. Scraper 2. Carriage bolts and locknuts (3) Figure 15 1. Control panel 2. Mounting screws 9. Remove the scraper by sliding it to the right and down. 10. -
Page 15: Replacing The Spark Plug
Note: The running time and the roughness of the driveway or the sidewalk determines the wear rate of the rotor blades. Removing the Old Blade Note: You will need a No. T27 torx driver to complete this procedure. 1. Remove the 4 torx screws and the 4 locknuts that secure the outer edges of the rotor blade to the rotor shaft assembly (Fig. -
Page 16: Replacing The Drive Belt
Figure 21 1. 0.032 in. (0.81 mm) 6. Install the spark plug and torque it to 15 ft-lb (20.4 N m). If you do not have a torque wrench, tighten the plug firmly. 7. Connect the wire to the spark plug. 8. -
Page 17: Storage
Preparing the Fuel System 1. Add a fuel stabilizer/conditioner to the fuel in the fuel tank as directed. Note: If you use Lawn-Boy Generation II 2-Cycle Oil (Fuel Stabilizer Added), you do not need to add a fuel stabilizer/conditioner . -
Page 18: Troubleshooting
Troubleshooting Lawn-Boy designed and built your snowthrower for trouble-free operation. Check the following components and items carefully, and refer to Maintenance on page 12 for more information. If a problem continues, contact an Authorized Service Dealer. Problem Possible Causes Corrective Action Electric starter does not turn 1. - Page 19 Problem Possible Causes Corrective Action 4. The spark plug is pitted, fouled, 4. Check the spark plug and or the gap is incorrect. adjust the gap if necessary. Replace the spark plug if it is pitted, fouled, or cracked. Engine runs, but the snowthrower 1.
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Page 20: The Lawn-Boy Worry Free Five-Year Starting Guarantee
Lawn-Boy Engine will start on the first or second pull for five years Oil change and lubrication from the date of purchase—if you provide the routine maintenance Repairs or adjustments due to the following: it requires—or we will fix it free of charge. - Page 21 Date Hours Check Spark Plug Storage Preparation Used Part No. 374-0049 Rev. –...
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Page 22: Federal Emission Control Warranty Statement
If you have any questions regarding your warranty rights and – EGR valve body and piping system connecting to the responsibilities, or if you need a referral to a Lawn-Boy Service intake side of the engine Dealer, please feel free to contact us at: –... - Page 23 Service Dealer or Master Service Dealer. The Yellow Pages of the use of the Lawn-Boy Products covered by this warranty, except your telephone directory is a good reference source. The dealer for damages to other engine components caused by the failure of a will either arrange service at his/her dealership or recommend warranted part still under warranty.
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Page 24: A Two-Year Full Warranty
Distributor (Dealer) to obtain guarantee policies for your country, province, or state. If for any reason you are dissatisfied with your Distributor’s service or have difficulty obtaining guarantee information, contact the Lawn-Boy importer. If all other remedies fail, you may contact us at Lawn-Boy Warranty Company.
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