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Form No. 3354-453 Rev A Commercial Walk-behind Power Mower Model No. 22242—Serial No. 260000001 and Up Model No. 22243—Serial No. 260000001 and Up G003842 Register your product at www.Lawn-Boy.com Original Instructions (EN)
California to cause cancer, birth defects, or other reproductive harm. Figure 1 Important: This engine is not equipped 1. Model and serial number location (22242) 2. Model and serial number location (22243) with a spark arrester muffler. It is a violation of California Public Resource Code Section 4442 to use or operate the engine Model No.
Contents General Information ......24 Removing the Lawn Mower from Storage ......24 Introduction ............2 Troubleshooting..........25 Safety ..............4 General Lawn Mower Safety ....4 Safety and Instructional Decals .... 6 Setup ..............7 1 Assembling the Handle ..... 7 2 Adjusting the Fuel Tank ....
Lawn-Boy designed and tested this lawn mower for Preparation to offer reasonably safe service; however, failure • Only use accessories and attachments approved to comply with the following instructions may by the manufacturer.
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conditions can affect the machine’s stability. • Remove spark plug wire before making any Use caution while operating near drop-offs. repairs. • Do not operate the lawn mower without either • Use care when checking blade. Wrap the blade the grass catcher or the guard in place. or wear gloves, and use caution when servicing them.
Safety and Instructional 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. Manufacturer’s Mark 1. Indicates the blade is identied as a part from the original machine manufacturer.
Setup Loose Parts Use the chart below to verify that all parts have been shipped. Step Description Qty. – No parts required Assemble the handle. – No parts required Adjust the fuel tank. – No parts required Install the fuel tank. –...
3. Low setting 7. Actuator bracket 4. Mower housing 4. Hook the traction cable spring into the actuator bracket (Figure 4) (model 22242 only). Figure 6 5. Match the three holes in the traction cable 1. Fuel hose 2. Fuel shutoff valve bracket to the three holes in the left side of hte mower housing (Figure 4) (model 22243 only).
4. Place the fuel tank onto the mounting bracket with the tabs through the openings in the mounting bracket (Figure 7). An uncovered discharge opening could allow the mower to throw objects in the operator’s or bystander’s direction and result in serious injury.
Figure 11 1. Shoulder bolt 4. Slide the cover plate clockwise to install it or counterclockwise to remove it. 5. Secure the cover plate with the bolt. 6. Connect the wire to the spark plug. Step Filling the Crankcase with No Parts Required Procedure The engine crankcase is shipped without oil.
6. Wheel height adjustment lever Contact your Authorized Service Dealer or 2. Blade control bar 7. Spark plug Distributor or go to www.Lawn-Boy.com for a list 3. Starter handle 8. Oil ll/dipstick 4. Air lter 9. Fuel tank of all approved attachments and accessories.
Operation Note: Maximum fill: 20 oz. (0.59 L) of oil. Type: SAE 30 weight detergent oil that has the American Petroleum Institute (API) service Note: Determine the left and right sides of the classification SF, SG, SH, SJ, or SL. machine from the normal operating position.
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In certain conditions, gasoline is extremely When fueling, under certain circumstances, flammable and highly explosive. A fire or a static charge can develop, igniting the explosion from gasoline can burn you and gasoline. A fire or explosion from gasoline others and can damage property. can burn you and others and damage property.
Figure 17 1. Primer Figure 15 Note: Wait about 2 seconds between each 1. Oil ll/dipstick 2. Fuel tank cap push. 3. Hold the blade control bar against the upper 2. Remove the fuel cap and fill the fuel tank with handle (Figure 18).
Note: You can vary ground speed slightly by increasing the space between the self-propel control bar and the handle. 4. To disengage the self-propel drive, release the self-propel control bar (Figure 21). Figure 19 1. Blade control bar Using the Self-propel Drive Model 22243 only Figure 21 1.
• Replace the blade when necessary with an when grass growth begins to slow down. original Lawn-Boy replacement blade. • When cutting grass over 6 inches (15 cm) tall, first mow at the highest cutting height setting •...
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Cutting Leaves • After cutting the lawn, ensure that half of the lawn shows through the cut leaf cover. You may need to make more than one pass over the leaves. • For light leaf coverage, set all the wheels at the same cutting height setting.
Maintenance Note: Determine the left and right sides of the machine from the normal operating position. Recommended Maintenance Schedule(s) Maintenance Service Maintenance Procedure Interval After the rst 5 operating • Change the engine oil. hours • Inspect the mower blades for wear or damage. Before each use or daily •...
Lubricating the Rear Height Adjusters Model 22243 only 1. Wipe the grease fittings on the rear height-of-cut adjusters (Figure 24) with a clean rag. Figure 25 1. Cover 4. Remove the cover (Figure 26) and clean it thoroughly . Figure 24 1.
6. Set the gap on the plug to 0.030 in. (0.76 mm) (Figure 27). Oil may be hot after engine has been run, and contact with hot oil can cause severe personal injury. Avoid contacting the hot engine oil when you drain it.
Drive System Controls System Maintenance Maintenance Adjusting the Self-propel Blade Maintenance Drive Maintaining the Cutting Model 22243 only Blade Whenever you change the handle height, install a new self-propel cable, or if the traction drive belt Always mow with a sharp blade. A sharp blade slips, adjust the self-propel cable.
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Note: For the best performance, install a new blade before the cutting season begins. During the year, file down any small nicks to maintain the cutting edge. A worn or damaged blade can break, and a piece of the blade could be thrown into the operator’s or bystander’s area, resulting in serious personal injury or death.
near the cutting edge). The blade is properly 1. Run the engine dry or remove the fuel with balanced when neither end drops. hand pump when the engine is cool. Installing the Blade 1. Ensure that the blade driver (Figure 30) is Tipping the mower may cause the fuel to installed on the crankshaft.
Storage General Information 1. Clean the mower housing. Refer to Cleaning To prepare the mower for off-season storage, under the Mower Housing. perform the recommended maintenance 2. Clean any dirt and chaff from the cylinder, procedures. Refer to Maintenance. cylinder head fins, and blower housing. Store the mower in a cool, clean, dry place.
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Troubleshooting Problem Possible Cause Corrective Action Engine does not start 1. The fuel tank is empty or 1. Drain and/or ll the fuel the fuel system contains tank with fresh gasoline. stale fuel. If the problem persists, contact an Authorized Service Dealer.
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Problem Possible Cause Corrective Action Engine runs rough 1. The wire is not 1. Connect the wire to the connected to the spark spark plug. plug. 2. The spark plug is pitted, 2. Check the spark plug fouled, or the gap is and adjust the gap if incorrect.
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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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