Mtd Series 521 User Manual Page 1

Safety • Assembly • Operation • Tips & Techniques • Maintenance • Troubleshooting • Parts Lists • WarrantyWarning: This unit is equipped with an i

106Maintaining & Servicing Your EdgerWARNINGDisconnect the spark plug wire and ground against the engine before performing any adjustment, repairs

11Replacing the Drive BeltIMPORTANT: To aid in reassembly, note the orientation of the drive belt on the two idler pulleys and the engine flywheel pu

127Off-Season StorageOff-Season StorageObserve the following when preparing the edger for long-term storage:1. Clean and lubricate unit thoroughly as

138Troubleshooting GuideProblemEngine fails to startEngine runs erraticEngine OverheatsCorrective ActionRefer to the Engine Manual packed with your un

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159V-BELTS are specially designed to engage and disengage safely. A substitute (non-OEM) V-Belt can be dangerous by not disengaging completely.† Optio

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

21. Safety Labels ... 32. Safe Operation Practices ... 4–53. Assembling Your Ne

31Safety LabelsWARNINGThis symbol points out important safety instructions which, if not followed, could endanger the personal safety and/or property

42Safe Operation PracticesWARNING: Engine Exhaust, some of its constituents, and certain vehicle compo-nents contain or emit chemicals known to State

52Safe Operation PracticesWARNINGThis symbol points out important safety instructions which, if not followed, could endanger the personal safety and/

63Assembling Your New EdgerSecuring the HandleIMPORTANT: This unit is shipped WITHOUT GASOLINE or OIL. After setting up the unit, service engine with

7Figure 4–1WARNING: Be familiar with all controls and their proper operation. Know how to stop the machine and disengage them quickly. NOTE: Refer to

85Operation And AdjustmentWARNINGDo not lower blade if blade is over concrete, asphalt, rocks or the like. The blade can strike the supporting surface

95Operation And AdjustmentWARNINGDisconnect the spark plug wire and ground against the Disconnect the spark plug wire and ground against the engine be