User manual NATIONAL MOWER MODEL 68 DL

[. . . ] MODEL 68 SR TRIPLEX MOWER MODEL 68 DL TRIPLEX MOWER OWNER'S MANUAL Includes Operation, Maintenance and Parts List NATIONAL MOWER CO. 700 Raymond Ave. , P. O. Phone (651) 646-4079 ­ Fax (651) 646-2887 www. nationalmower. com June 2003 ONE YEAR LIMITED WARRANTY For the period of one year from the date of purchase (45 days if the product is used for rental purposes), National Mower Company will repair or replace free of charge, for the original purchaser, any part or parts found by inspection to be defective by our Factory Authorized Service Station or by the Factory at St. All transportation charges on parts submitted for repair or replacement under this warranty shall be paid for by the purchaser. This warranty does not include engines, engine parts or tires which are covered under separate warranties furnished by their manufacturer or supplier. [. . . ] Seat Position Adjuster Lever The Wing Cutting Units should be latched in their elevated position whenever the mower is being transported or in storage. If needed, push the latch (E) down to a generally horizontal position. Grasp the Wing Cutting Unit lift handle (not shown) and raise the cutting unit until the latch (E) engages the lift arm socket (F). To release the latch, lift the handle until the latch (E) swings upward into a nearly vertical position, then carefully lower the cutting unit onto the ground. Avoid dropping the cutting unit, as damage may result to the cutting unit, the mower, or your turf. WARNING DO NOT OPERATE THE SEAT SLIDE MECHANISM WHILE THE MOWER IS MOVING The seat may be moved forward or backward to suit the operator. Pull the lever near the front left corner of the seat outward to release the slide mechanism. After moving the seat to a comfortable position, release the lever to lock the slide mechanism. . 68OM-06/03 15 OPERATION K. Ignition Switch (Model 68 DL shown) CAUTION ALWAYS SHUT OFF THE ENGINE AND REMOVE THE KEY BEFORE LEAVING THE MOWER SEAT. Pulling brake lever back, toward the rear of the machine will disengage the brake. N. Service Brake Depress the Service Brake foot pedal to slow the mower and lock the rear wheels in the full stop position. Note: It is best to slow the mower with the throttle and then disengage clutch lever before applying brake. This prevents excessive wear and engine overload. Turn the key clockwise to the middle position to activate the electrical system. The 68 SR ignition switch (not shown) is located on the steering column. Turn the key clockwise to activate the electrical system and allow the engine to be started. Turn the switch counterclockwise to shut off the engine. SAFETY SWITCHES Your National 68 mower is equipped with safety switches to monitor the operating conditions of certain machine functions and stop the mower whenever unsafe conditions are found. It is necessary for both the main engine clutch and the wing cutting unit clutch to be in their neutral position to start the engine. The 68 SR does not require the operator to be in the seat to facilitate use of the hand recoil starter. If you encounter difficulties starting the mower's engine, or keeping it running, check the chart in the Safety Switches section of this manual to make sure you are not causing the engine to kill or become unable to start. L. Differential Shift Lever Never shift while machine is in motion, as damage to the gears could result. Always disengage engine clutch before attempting to shift. WARNING Located on the mower differential, this control has three positions: Forward, Neutral (center position), and Reverse. The lever must be pulled toward the center of the machine to clear the notch in the stop disc and positioned securely in the new notch. 16 68OM-06/03 ® NATIONAL 68 SR & DL TRIPLEX HEIGHT OF CUT ADJUSTMENT To assure safety, disengage the engine clutch lever, remove the ignition key, and disconnect the engine spark plug wire prior to making any of the following adjustments. 2. DIAL-A-HEIGHT ADJUSTERS (OPTIONAL) To set the height of cut, lift the vinyl cap and socket (A) off the adjuster tube. [. . . ] Dual Element Muffler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Low Tone Type Alternator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12v 10 A (68 DL) Net Weight (Engine) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 lbs (21. 4 kg) SOUND & VIBRATION LEVELS Average Measured Sound Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ]