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MTD Series 521 Operator's Manual

Mtd llc lawn edger operator's manual
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Safety • Assembly • Operation • Tips & Techniques • Maintenance • Troubleshooting • Parts Lists • Warranty
OPERATOR'S MANUAL
Lawn Edger — Model Series 521
IMPORTANT
READ SAFETY RULES AND INSTRUCTIONS CAREFULLY BEFORE OPERATION
Warning: This unit is equipped with an internal combustion engine and should not be used on or near any uniiproved forest-covered, brush-
covered or grass-covered land unless the engine's exhaust system is equipped with a spark arrester meeting applicable local or state laws (if any).
If a spark arrester is used, it should be maintained in effective working order by the operator. In the State of California the above is required by law
(Section 4442 of the California Public Resources Code). Other states may have similar laws. Federal laws apply on federal lands. A spark arrester
for the muffler is available through your nearest engine authorized service dealer or contact the service department, P.O. Box 361131 Cleveland,
Ohio 44136-0019.
PRINTED IN U.S.A
MTD LLC, P.O. BOX 361131 CLEVELAND, OHIO 44136-0019
FORM NO. 769-00527H

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  • Page 1 (Section 4442 of the California Public Resources Code). Other states may have similar laws. Federal laws apply on federal lands. A spark arrester for the muffler is available through your nearest engine authorized service dealer or contact the service department, P.O. Box 361131 Cleveland, Ohio 44136-0019. PRINTED IN U.S.A MTD LLC, P.O. BOX 361131 CLEVELAND, OHIO 44136-0019 FORM NO. 769-00527H...

  • Page 2: Table Of Contents

    This Operator’s Manual is an important part of your new Edger. It will help you assemble, prepare and maintain the unit for best performance. Please read and understand what it says. 1. Safety Labels ... 3 2. Safe Operation Practices ... 4–5 3.

  • Page 3: Safety Labels

    Please take a moment to review your safety labels. Safety Labels WARNING This symbol points out important safety instructions which, if not followed, could endanger the personal safety and/or property of yourself and others. Read and follow all instructions in this manual before attempting to operate this machine.

  • Page 4: Safe Operation Practices

    Failure to observe the following safety instructions could result in serious injury or death. Operation Practices Tragic accidents can occur if operator is not alert to presence of children. Children are often attracted to power equipment such as lawn edgers. They do not understand the dangers. Never assume that children will remain where you last saw them. 1. Keep children out of the mowing area and under watchful care of a responsible adult other than the operator. 2. Be alert and turn lawn edger off WARNING if a child enters the area. 3. Before and while moving backwards, look behind and down for small children. This symbol points 4. Use extreme care when approaching blind out important safety corners, doorways, shrubs, trees, or other instructions which, objects that may obscure your vision of a if not followed, child who may run into the lawn edger.

  • Page 5: Safe Operation Practices

    2. Before cleaning, repairing, or inspecting, make certain the blade and all moving parts have stopped. Disconnect the spark plug wire and ground against the engine to prevent unintended starting. 3. Check the blade and engine mounting bolts at frequent intervals for proper tightness. Also, visually inspect blade for damage (e.g., bent, cracked, worn) Replace blade with the original equipment manufacture’s (O.E.M.) blade only, listed in this manual. “Use of parts which do not meet the original equipment specifications may lead to improper performance and compromise safety!” 4. Lawn edger blades are sharp and can cut. Wrap the blade or wear gloves, and use extra caution when servicing them. 5. Keep all nuts, bolts, and screws tight to be sure the equipment is in safe working condition. 6. Never tamper with safety devices. Check their proper operation regularly. 7. After striking a foreign object, stop the engine, disconnect the spark plug wire and ground against the engine. Thoroughly inspect the lawn edger for any damage. Repair the damage before starting and operating the lawn edger. 8. Never attempt to make a wheel or cutting height adjustment while the engine is running. 9. Many components on your new edger can wear with continued use. For safety protection,...

  • Page 6: Assembling Your New Edger

    OIL. After setting up the unit, service engine with gasoline and oil as instructed in the separate engine manual packed with your unit. NOTE: Reference to right or left hand side of the edger is observed from the operating position. Positioning the Edger Handles...

  • Page 7: Know Your Edger

    Bevel Adjustment Lever The bevel adjustment lever is located on the front, left portion of the edger, behind the edger blade. It is used to vary the angle of the edger blade between one of three positions for edging/trenching or beveled edging. See Fig.

  • Page 8: Operation And Adjustment

    We recommend wide vision safety mask for over spectacles or standard safety glasses. Operation Adjustment Service the engine with gasoline and oil as instructed in the Engine Manual packed with your edger. Read instructions carefully. WARNING Do not lower blade if blade is over concrete, asphalt, rocks or the like.

  • Page 9: Operation And Adjustment

    Edging Along A Curb The right, rear wheel of the edger can be lowered into one of five positions to ease the task of edging along a curb. To adjust the height of curb wheel, proceed as follows: 1. Lower the right, rear wheel by moving the curb height adjustment lever slightly to the left.

  • Page 10: Maintaining & Servicing Your Edger

    Images my not reflect your exact model and are for reference purposes only. Engine Refer to the Engine Manual packed with your edger for a detailed description of all engine-related service specifications. Wheels Lubricate the wheels and bearings at least once a season with a light oil.

  • Page 11: Maintaining & Servicing Your Edger

    Refer to Fig. 6–3. The edger drive belt is subject to wear and should be replaced if any signs of cracking, shredding or rotting are present. To replace the belt, proceed as follows: 1.

  • Page 12: Off-Season Storage

    3. Coat the edger blade with chassis grease to prevent rusting and corrosion. 4. Store the edger in a dry, clean area. Do not store next to any corrosive materials, such as lawn fertilizer. 5. Coat the edger, especially any springs and bearings with a light oil or silicone spray.

  • Page 13: Troubleshooting

    Fill crankcase with proper oil. Clean the area around the engine’s cooling fins. Replace the engine’s air filter. Refer to the Engine Manual packed with your unit. Replace edger blade. Contact an authorized MTD service dealer. Replace drive belt. Troubleshooting Guide For parts and/or...

  • Page 15: Parts List

    Ref Part Number Part Description 710-0870 Hex Head Screw 3/8-16 711-04362 Axle .50 x 3.8 711-04440 Axle .50 x 9.25 726-0299 Push Cap 1/2” rod 732-04045 Torsion Spring 734-1987 Wheel 8x1.8 734-1988 Wheel 7x1.8 736-0232 Wave Washer 738-0929 Shoulder Screw, 3/8-16 750-04129 Spacer 750-04427...

  • Page 16: Warranty

    MANUFACTURER’S LIMITED WARRANTY FOR The limited warranty set forth below is given by MTD LLC with respect to new merchandise purchased and used in the United States, its possessions and territories. “MTD” warrants this product against defects in material and workman-...

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