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Resumen del manual
It is extremely important that each cutting edge receives an equal amount of grinding to prevent an unbalanced blade. An unbalanced blade will cause excessive vibration when rotating at high speeds and may cause damage to the mower. The blade can be tested for balance by balancing It on a round shaft screwdriver. Remove metal from the heavy side until it balances evenly. NOTE It is recommended that the blade always be removed from the adapter for the best test of balance. C. Reassembly Before reassembling the blade and the blade adapter to the unit, lubricate the engine crankshaft and the inner surface of the blade adapter with light oil. Lubricating the bolt holes, bolts and inner surface of the nuts with light oil is also recommended. A 4 oz. plastic bottle of light oil lubricant is available. Order part number 737-0170. Engine oil may also be used. 8 When replacing the blade, be sure to install the blade with the side of the blade marked “Bottom” (or with part number) facing the ground when the mower is in the operating position. Make certain key is in place on the crankshaft. Blade Mounting Torque 3/8" Dia. Bolt 375 In. lb. min., 450 in. lb. max. 5/16" Dia. Bolt 150 in. lb. min., 250 in. lb. max. To insure safe operation of your unit, ALL nuts and bolts must be checked periodical ly for correct tightness. DECK The underside of mower deck should be cleaned after each period of use as grass clippings, leaves, dirt and other matter will accumujate. This accumulation of grass clippings, etc., is undesirable as it will invite rust and corrosion and may cause an uneven discharge of grass clippings at the next cutting. The deck may be cleaned by tilting the mower forward or on its side and scraping clean with a suitable tool or by washing with a stream of water from a garden hose. A CAUTION Do not direct the stream of water at a hot engine as damage to the engine may result. ENGINE OIL CHECK OIL LEVEL before starting engine and after every 5 hours of operation. ADD oil as necessary to keep level FULL TO POINT OF OVERFLOWING. Before removing oil fill plug, clean area around plug to prevent dirt from entering oil fill hole. Engine should be in a level position when checking oil. CHANGE OIL after first 5 hours of operation. Thereafter change every 25 hours. Change oil while engine is warm. Oil may be drained thru drain on bottom of engine. To drain completely, always place engine level when draining thru the bottom. Oil capacity 1-1/4 pints. See figure 10. AIR CLEANER CLEAN AIR CLEANER and re-oil element every 25 hours under normal conditions. Clean every few hours under extremely dusty conditions. Poor engine performance and flooding usually indicates that the air cleaner should be serviced. See figure 11. 1. Remove screw. 2. Remove air cleaner carefully to prevent dirt from entering carburetor. 3. Take air cleaner apart and clean. a. WASH foam element In kerosene or a liquid detergent and water to remove dirt. b. DRY foam completely by wrapping and squeezing in a cloth. c. SOAK foam with engine oil. Squeeze to distribute and remove excess oil. 4.Reassemble parts and fasten to carburetor. Screw« Assemble One of Thesd Low Points Towards Narrow Edge of Element Assemble Element Lip Extends Over of Air Cleaner Lip Will Form Protective Seal When Cover Is Assembled CLEAN AIR CLEANER FIGURE 11. Clean Electrode FIGURE 10. FIGURE 12. 9 I V 1 Vç ï 030’ eeler Gauge Spark Plug OFF-SEASON STORAGE The following steps should be taken to prepare lawn mower for storage. 1. Clean and lubricate mower thoroughly as described in the lubrication instructions. 2. Refer to Engine Manual for correct engine storage instructions. 3. Coat mower’s cutting blade with chassis grease to prevent rusting. 4. Place blocks under deck to raise tires clear of floor. 5. Store mower in a dry, clean area. FIGURE 13. SPARK PLUG The spark plug should be cleaned (see figure 12) and the gap reset to a 0.030-inch clearance once a season (see figure 13). Spark plug replacement Is recommended at the start of each mowing season; check engine manual for correct plug type. NOTE Whenever the spark plug is removed for cleaning, it is advisable to replace the spark plug gasket with a new gasket. HANDLE STORAGE The handle may be placed in an upright position for storage. Move the hairpin cotters to the outer hole on weld pins. See figure 1. Press inward on the bottom of the lower handle and push forward. The handle will lock in this pnition. Reverse the above procedure to place the handle in the operating position. USING YOUR ROTARY MOWER For the best results do not cut wet grass because it tends to stick to the underside of the mower, thus preventing proper discharge of grass clip-ings. If wet grass must be cut, reduce walking speed to help distribute the clippings more effectively. New grass should be treated as wet grass, otherwise a normal walking speed is about the right pace for efficient mow...
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