Lawn-Boy GoldPro Series Operator's Manual
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Lawn-Boy GoldPro Series Operator's Manual

Walk-behind power mower
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Walk-Behind Power Mower
GoldPro Series
Model No. 10424, 10525, 10547 — 9900001 & Up
Operator's Manual
Para obtener una versión gratis de este manual en español, escriba a la dirección
indicada más abajo. Asegúrese de indicar el modelo y el número de serie de su producto.
Pour obtenir gratuitement une version en français de ce manuel, écrivez à l'adresse
ci–dessous. N'oubliez pas d'indiquer les numéros de modèle et de série de votre produit.
Lawn-Boy Inc., Attn: Parts Dept., 8111 Lyndale Ave S, Bloomington, MN 55420–1196.
FORM NO. 3321–750 Rev A

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Summary of Contents for Lawn-Boy GoldPro Series

  • Page 1 Asegúrese de indicar el modelo y el número de serie de su producto. Pour obtenir gratuitement une version en français de ce manuel, écrivez à l’adresse ci–dessous. N’oubliez pas d’indiquer les numéros de modèle et de série de votre produit. Lawn-Boy Inc., Attn: Parts Dept., 8111 Lyndale Ave S, Bloomington, MN 55420–1196.

  • Page 2: Table Of Contents

    ....... . . All of us at Lawn-Boy want you to be completely satisfied Safety .

  • Page 3: Safety

    WARNING signals a hazard that may cause serious injury Two other words are also used to highlight information. or death if the recommended precautions are not followed. “Important” calls attention to special mechanical information and “Note” emphasizes general information CAUTION signals a hazard that may cause minor or worthy of special attention.
  • Page 4 To until all moving parts stop. ensure best performance and continued safety certification of the mower, use genuine Lawn-Boy 14. After striking a foreign object or if mower vibrates replacement parts and accessories. Replacement parts...

  • 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. ON MOWER HOUSING ON MOWER HOUSING (Part No. 93–7250) (Part No.

  • Page 6: Cover Plate

    Handle Height WARNING Handle may be placed in three (3) operating positions, high, medium or low (Fig. 2). Select a handle height POTENTIAL HAZARD position that is most comfortable for you. An uncovered discharge opening will allow objects to be thrown in operator’s or bystander’s direction.

  • Page 7: Battery (Model 10547)

    Figure 5 Oil Mix Ratio 1. Shoulder bolt Your Lawn-Boy mower is powered by a 2-cycle engine which requires a 32:1 mixture of gasoline and oil. Use 4. Slide cover plate clockwise to install or only Lawn-Boy GENERATION II 2-Cycle Ashless counterclockwise to remove.

  • Page 8: Mixing Gasoline And Oil

    For simplicity and best engine performance, mix 8 ounces keep it out of the reach of children. (250 ml) of Lawn-Boy Generation II 2-Cycle Ashless Oil Never buy more than a 30-day supply of with two gallons (8 liters) of fresh, unleaded regular gasoline.

  • Page 9: Lawn Preparation And Mowing

    Lawn-Boy recommends that Lawn-Boy 2+4 Fuel Conditioner (Fig. 11) be used regularly during operation 1. Review SAFETY INSTRUCTIONS and read this and storage. Lawn-Boy 2+4 Fuel Conditioner cleans the manual carefully before operating mower. engine during operation and prevents gum-like varnish deposits from forming in the engine during storage.

  • Page 10: Operation

    Operation Starting Engine Note: Follow steps in BEFORE STARTING section. 1. Move throttle lever to position (Fig. 13). 1352 Figure 15 1. Key B. MANUAL STARTING (All models)—Pull starter handle (Fig. 16) lightly until resistance is felt, then pull sharply. Let rope return to handle slowly. 10051 Figure 13 1.

  • Page 11: Self-Propelled Drive

    4. To disengage self-propelled drive, release self-propelled bail (Fig. 19). Note: Mower is equipped with free-wheeling clutches which make it easier to pull the mower rearward. To disengage clutches mower may need to be pushed forward one inch or more after self-propelled bail has been released.

  • Page 12: Mulching Tips

    Cutting Grass Grass grows at different rates at different times of the year. In the heat of summer, it is generally best to cut grass at the 2, 2.5 or 3 inch height-of-cut settings. Only about / of the grass blade should be cut off. Cutting below the 2 inch setting is not recommended unless grass is sparse or it is late fall when grass growth begins to slow down.

  • Page 13: Maintenance

    Blade Blade Brake must stop within 3 seconds of releasing bail; if not see your Authorized Lawn-Boy Service Dealer for repair. Exhaust Ports Clean every 100 hours. Check for leakage and/or deterioration Fuel System of fuel hose.

  • Page 14: Air Filter

    CAUTION POTENTIAL HAZARD If you leave the wire on the spark plug, someone could start the engine. WHAT CAN HAPPEN Accidental starting of engine could seriously injure you or other bystanders. HOW TO AVOID THE HAZARD Pull the wire off of the spark plug before you do any maintenance. Also push the wire aside so that it does not accidentally contact the spark plug.

  • Page 15: Clean Mower Housing

    Replace spark plug once a season or clean every 50 hours, whichever occurs first. Use an NGK BPMR4A spark WARNING plug. POTENTIAL HAZARD 1. Pull wire off spark plug (Fig. 25). Remove key from Gasoline is extremely flammable, highly switch. explosive and under certain conditions can 2.
  • Page 16 Note: If measurements are not within 1/8 inch (3.2 mm), blade should be replaced. If, after blade replacement, the measurements are still not within 1/8 inch (3.2 mm), the crankshaft should be checked for straightness by your Authorized Lawn-Boy Service Dealer. 1022 Figure 28 1.

  • Page 17: Lubrication

    Note: Blade should not be ground more than 5 inches (127 mm) from outside ends and no less than 2 inches (51 mm) from trailing edge (Fig. 29). 2” (51 mm) 1024 Figure 31 5” (127 mm) 4. Torque blade nut to 560 in.–lbs. (47 ft.–lbs.) (63 N m). Figure 29 Note: Blade nut must be replaced after installing and removing four (4) times.

  • Page 18: Self-Propelled Cable

    2. Adjust jam nuts, at handle bracket, so cable is tight, but spring is not stretched. 3. Tighten jam nuts securely. 4. Release bail and check to see that cable is loose. Note: Cable must be loose with bail in released position or mower may creep when bail is disengaged.

  • Page 19: Battery (Model 10547)

    Figure 36 disconnect from battery. 1. Blade control bail 3. Starter handle IMPORTANT: Only the Lawn-Boy charger is 2. Upper handle recommended because other chargers could damage the battery. Always use charger indoors and charge battery at room temperature (22 C or 12.

  • Page 20: Troubleshooting

    COLLECTED, RECYCLED OR DISPOSED OF IN AN ENVIRONMENTALLY SOUND MANNER. Troubleshooting Your mower was designed and built for trouble-free operation. Check the following components and items carefully. If a problem continues, see your Authorized Lawn-Boy Service Dealer. PROBLEM CORRECTIVE ACTION Engine will not start 1.

  • Page 21: Accessories

    4. Clean underside of mower deck Will not self-propel 1. Adjust self-propelled cable Accessories Optional accessories may have been shipped with your mower or are available from your Authorized Lawn-Boy Dealer. For proper installation follow these instructions. m–3833 Figure 38 Rear Grass Catcher 1.
  • Page 22 3. Insert chute support rod through hole at right rear of deck (Fig. 40). 1012 Figure 42 1145 10. Position rear bag handles into bag hanger on handle. Figure 40 11. Grasp bag assembly handle and slide over flange of 1.

  • Page 23: Mulch Plate

    5. Secure with knob (Fig. 46). 2. Insert mulch plate into housing opening (Fig. 45). 6. Reconnect spark plug wire. Note: Use only Lawn-Boy original equipment or Lawn-Boy replacement cutting blade. Other blades may strike mulch plate when engine is started and run.

  • Page 24: Storage

    We recommend Lawn-Boy 2 + 4 Fuel Conditioner to 3. Replace spark plug but DO NOT connect spark plug stabilize fuel for storage (Fig. 47). If possible, the last fuel wire. fill of the year should be treated with Lawn-Boy 2 + 4 Fuel Conditioner.

  • Page 25: Folding Handle

    Folding Handle Removing From Storage 1. Remove handle mounting hardware from handle 1. Unfold handle. See ASSEMBLY chapter, Handle brackets (Fig. 49). section. Note: Save handle mounting hardware, replace in 2. Check and tighten all fasteners. handle bracket holes. 3. Remove spark plug (Fig. 51) and spin engine rapidly using starter to blow excess oil from the cylinder.
  • Page 26 The manufacturer is not liable to cover failures of warranted parts caused by the use of add–on or modified parts. Lawn-Boy is liable for damages to other engine components caused by the failure of a warranted part still under warranty.
  • Page 27 How to Get Warranty Service: Should you feel your Lawn-Boy Product requires warranty service, contact the dealer who sold you the product or any Authorized Lawn-Boy Service Dealer or Lawn-Boy Master Service Dealer. The Yellow Pages of your telephone directory is a good reference source.

  • Page 28: Warranty

    COUNTRIES OTHER THAN THE UNITED STATES Customers who have purchased Lawn-Boy Products exported from the United States should contact their Lawn-Boy Dis- tributor (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.

This manual is also suitable for:

Goldpro 10424Goldpro 10525Goldpro 10547

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