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Walk Behind Lawn Mower
Owner/Operator & Parts Manual
Model
907254 - LM21SW
01185100 12/99
Printed in USA
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CONTROLS AND FEATURES FRANÇAIS 1. Commande moteur 1 11 2. Sélecteur de vitesse 3. Poire d’amorçage 4. Plaque de fermeture 10 latétale 5. Déflecteur de décharge latérale 6. Leviers de hauteur de 2 coupe (réglage par les 7 roues) 7. Trappe arrière 14 8. Guidon réglable et pliable 9. Sac à herbe 9 10. Poignée du démarreur manuel 11. Commande de l’entraînement des roues 8 12. Déflecteur à paillis Mulch 13. Trous de réglage du 12 guidon 14. Indicateur de vitesse 6 ESPAÑOL 13 1. Control
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ENGLISH TABLE OF CONTENTS Controls and Features. . . . . . . . . . . . . . . . . . . . 3 Service and Adjustments . . . . . . . . . . . . . . . . 18 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . 21 Assembly . . . . . . . . . . . . . . . .
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DISCLAIMER This product has been manufactured by Ariens. Scotts and Ariens reserve the right to discontinue, make changes to, and add improvements upon its products at any time without public notice or obligation. 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 unit. SAFETY SAFETY ALERTS PRACTICES AND LAWS Look for these
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SAFETY DECALS AND LOCATIONS ALWAYS replace missing or damaged Safety Decals. Refer to Figure 3 for Safety Decal locations. CAUTION BAG IS SUBJECT TO WEAR AND • DETERIORATION. 1 3 • CHECK BAG FEQUENTLY, REPLACE WHEN NECESSARY. •USE ORIGINAL BAG TO COMPLY WITH SAFETY SPECIFICATIONS. PRECAUCION • LA BOLSA ESTA SUJETA A DESGASTE Y DETERIORO. • REVISAR LA BOLSA FREQUENTAMENTE, Y REEPLAZARLA SI ES NECESARIO. USAR BOLSAS ORIGINAL PARA CUMPLIR CON • LAS ESPECIFICACIONES DE SEGURIDAD. ATTENT
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Avoid uneven work areas and any rough terrain. SAFETY RULES Be familiar with area of operation. Stay alert for holes, Operational rocks, roots, and hidden hazards in area of operation. Inspect unit and work area before operation. Keep away from drop-offs, ditches or embankments. Clear work area of objects which might be picked up Operator could lose footing or balance. and thrown. Remove all stones, sticks, wires, and other DO NOT operate on steep slopes. foreign objects. Tall grass
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Service and Adjustments Maintenance NEVER attempt to make any adjustments to unit while Follow engine manufacturer’s safety instructions when engine is running. Stop engine and wait for all moving servicing engine. parts to stop before servicing (except where Keep all nuts, bolts, and screws tight and be sure specifically recommended). equipment is in safe working condition. Check all DO NOT make cutting height wheel adjustments while hardware at regular intervals, especially b
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Literature Pack ASSEMBLY TO REMOVE UNIT FROM CARTON 1. Cut off top of carton. 2. Remove front and rear inserts and literature pack. 3. Cut out back of carton and roll unit out. 4. Remove protective packaging materials. 1 3 2 OM0340 OM0320 5 4 OM0700 1. Mower Unit 2. Discharge Chute 3. Grass Bag 4. Grass Bag Frame 5. Literature Pack OM0350 OM0330 Figure 4 3. Assemble grass bag onto bag frame. ASSEMBLY 4. Configure mower for bagging, side discharge or 1. Unfold and adjust handlebar.
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OPERATION CONTROLS AND FEATURES Cutting Height Settings Chart See Figures 1 and 6 for Controls and Features. Notch Cut grass length Engine/Blade Control 1" (25 mm) LOW 1-3/8" (35 mm) 2 WARNING: DO NOT attempt to start your 1-3/4" (45 mm) 3 engine at this time. Familiarize yourself with 2-1/4" (57 mm) controls to see what they do and how they 4 work. Thoroughly read and understand entire 2-3/4" (70 mm) 5 Operators Manual first. 3-1/4" (83 mm) HIGH CAUTION:
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With Speed Selector set at a slow travel speed and OPTIONAL CONTROLS engine running, engage Wheel Drive Control. Increase See Figures 1 and 6. speed with Speed Selector to a safe, comfortable Cutting Height – Swivel Models walking pace. Once speed has been selected, Speed Selector should remain in this position. If not, adjust speed control bell crank spring tension. (See CAUTION: On swivel wheel models, when Adjustments). mowing on slopes it is recommended tha
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3. Clean Fuel Cap and surrounding area to prevent Mulching: Remove grass bag and install side dust, dirt and debris from entering Fuel Tank. discharge opening cover. Open rear door and insert Mulchmaster Plug with the beveled face to the left. 4. Remove Cap. Rear door should close flush. IMPORTANT: DO NOT use gasohol or gasoline containing alcohol because alcohol will cause internal STOPPING IN AN EMERGENCY parts to deteriorate. See Engine Manual for correct
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Mowing Tips CAUTION: On swivel wheel models, when mowing on slopes it is recommended that the linchpin be positioned through the swivel lock hole. If wheels are in the swivel position and control handles are released the mower may “free roll” downhill. Never mow on steep slopes. CAUTION: If clog or obstruction prevents grass flow, release Engine/Blade Control and disconnect spark plug wire before attempting to clear away any clogs. The following tips will help you to mow safely, ach
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MAINTENANCE Ariens Dealers will provide any service, parts or adjustments which may be required to keep your unit WARNING: Stop engine, wait for moving operating at peak efficiency. Should engine service be parts to stop, and remove wire from spark required, contact an Ariens dealer or an authorized plug (keep wire away from plug to prevent engine manufacturer's service center. accidental starting) before attempting any lubrication or maintenance procedures. MAINTENANCE SCHEDULE The chart
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4. Install blade, lock washer and tighten cap screw CHECK ENGINE/BLADE CONTROL until lock washer is fully compressed (requires The engine/blade control must stop the engine and 25-30 ft. lbs. of torque on nuts). blade within 3 seconds after the bail is released. If the IMPORTANT: If mower is used under sandy soil engine or blade continues to run, adjust or repair conditions, replace blades when air lifts become control immediately. See Adjustments. eroded. CHECK GRASS BAG 5 Check bag for
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3. Scrape and wash spark plug with a commercial solvent. DO NOT blast clean. 4. Replace spark plug. NOTE: Sparking can occur if wire terminal does not fit firmly on spark plug. Replace terminal if damaged. 1 4 2 3 OM0680 Briggs & Stratton Intek OHV 1. Oil Fill Cap & Dipstick 3. Spark Plug & Wire 2. Air Cleaner 4. Fuel Cap & Tank Figure 13 CHECK ENGINE COOLING Engine is air cooled. Air must circulate freely around engine from Air Intake to cooling fins on cylinder head and block to prevent overh
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SERVICE AND ADJUSTMENTS IMPORTANT: If engine becomes “flooded” due to SERVICE POSITION tipping, clean air cleaner (See Maintenance) and remove spark plug, put one teaspoon of oil in cylinder, WARNING: ACCIDENTAL ENGINE START turn engine over a few times and reinstall spark plug. UP can cause death or serious injury. ALWAYS stop engine, wait for moving parts to HANDLEBAR stop and remove wire from spark plug before To adjust handlebar height (Figure 15): adjusting or servicing. 1. Place a hol
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4. Check idler for free rotation of pulley and ENGINE/BLADE CONTROL movement of pivot. Engine Control must stop engine ignition, at 3/4” 5. Reinstall drive belt in reverse order. Be sure that to 1-1/4” from handlebar as control is released. belt seats in pulley grooves with idler positioned To check (Figure 16): on back (flat) side of belt. 1. Start engine and slowly release Control until engine stops firing. DRIVE WHEEL 2. Measure distance between handlebar and control See Figure 1
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Speed Control Bell Crank 1 The speed control bell crank holds the speed selector rod in position after a speed has been set. The spring 2 washers may become loose with normal wear. If the speed selector rod does not stay firmly in position, adjust the speed control bell crank. See Figure 18. To adjust: 1. Remove cover, fully compress the helical spring 4 lockwashers with lock nut and then back lock nut off, one half turn. 2. If the speed selector rod is still too loose, tighten 3 lock nut
