Assessments - 3, GPA: 4.3
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If very dirty or damaged, replace cartridge. • Rein stall cartridge, cover with pre-cleaner and se cure with screw. IMPORTANT: PETROLEUM SOLVENTS, SUCH AS KERO SENE, ARE NOT TO BE USED TO CLEAN THE CARTRIDGE. THEY MAY CAUSE DETERIORATION OF THE CARTRIDGE. DO NOT OIL CARTRIDGE. DO NOT USE PRESSURIZED AIR TO CLEAN OR DRY CARTRIDGE. COVER KNOB COVER AIR CLEANER CARTRIDGE FOAM PRECLEANER BASE FIG. 21 13 MAINTENANCE COOLING SYSTEM (See Fig. 22) Your engine is air cooled. For proper engine performance and long life keep your engine clean. • Clean air screen frequently using a stiff-bristledbrush. • Remove blower housing and clean as nec es sary. • Keep cylinder fins free of dirt and chaff. engine_art_61 FIG. 22 AIR SCREEN BLOWER HOUS ING MUFFLER Do not operate tiller without muffler. Do not tamper with exhaust system. Damaged mufflers or spark arresters could create a fire hazard. Inspect pe riodi cally and re place if neces sary. If your engine is equipped with a spark arrester screen assembly, re move every 50 hours for cleaning and inspection. Re place if dam aged. SPARK PLUG Replace spark plugs at the beginning of each tilling season or after every 50 hours of use, whichever comes first. Spark plug type and gap setting is shown in “PRODUCT SPEC I FI CATIONS” on page 3 of this manual. TRANSMISSION Once a season, lubricate the right hand side gear case grease fitting with 1 oz. of EP #1 Grease. CLEANING Do not clean your tiller when the engine and transmission are hot. We do not rec om mend using pressurized water (gar den hose, etc.) to clean your unit un less the gasket area around the trans mis sion and the engine muf fl er, air fi l ter and car bure tor are covered to keep water out. Water in en gine will short en the useful life of your tiller. • Clean engine, wheels, finish, etc. of all foreign matter. • Keep finished surfaces and wheels free of all gas o line, oil, etc. • Protect painted surfaces with au to mo tive type wax. 14 SERVICE AND ADJUSTMENTS CAUTION: Disconnect spark plug wire from spark plug and place wire where it cannot come into contact with plug. TILLER TO ADJUST HANDLE HEIGHT (See Fig. 23) Select handle height best suited for your tilling conditions. Handle height will be different when tiller digs into soil. • First loosen handle lock lever. • Handle can be positioned at different settings between “HIGH” and “LOW” positions. • Retighten handle lock lever securely after adjusting. FIG. 24 tire_3 CLEVIS PIN HAIRPIN CLIP FIG. 23 HANDLE (LOW POSITION) HANDLE LOCK LEVER HANDLE (HIGH POSITION) TIRE CARE CAUTION: When mounting tires, unless beads are seated, over in fl a tion can cause an explosion. • Maintain 20 pounds of tire pressure. If tire pressures are not equal, tiller will pull to one side. • Keep tires free of gasoline or oil which can damage rubber. TO REMOVE WHEEL (See Fig. 24) • Place blocks under trans mis sion to keep tiller from tipping. • Remove hairpin clip and clevis pin from wheel. • Remove wheel and tire. • Repair tire and reassemble. TO REMOVE BELT GUARD (See Fig. 25) NOTE: For ease of removal, remove hairpin clip and clevis pin from left wheel. Pull wheel out from tiller about 1 inch. • Remove two (2) screws from side of belt guard. • Remove hex nut and washer from bottom of belt guard (located behind wheel). • Pull belt guard out and away from unit. • Replace belt guard by reversing above procedure. FIG. 25 SCREW AND WASHER HEX NUT AND WASHER (LOCATED BEHIND TIRE) BELT GUARD SCREW AND WASHER HAIRPIN CLIP AND CLEVIS PIN 15 SERVICE AND ADJUSTMENTS TO REPLACE GROUND DRIVE BELT (See Figs. 25 and 26) • Remove belt guard as described in “TO REMOVE BELT GUARD”. • Remove old belt by slipping off engine pulley first then remove from transmission pulley. • Place new belt in groove of transmission pulley and into engine pulley. BELT MUST BE IN GROOVE ON TOP OF IDLER PULLEY. NOTE POSITION OF BELT TO GUIDES. • Check belt adjustment as described below. • Replace belt guard. • Reposition wheel and replace clevis pin and hairpin clip. GROUND DRIVE BELT ADJUSTMENT (See Fig. 26) For proper belt tension, the extension spring should have about 5/8 inch (16 mm) stretch when drive control bar is in “EN GAGED” position. This tension can be attained as follows: • Loosen cable clip screw securing the drive control cable. • Slide cable forward for less tension and rearward for more tension until about 5/8 inch (16 mm) stretch is obtained while the drive control bar is engaged. • Tighten cable clip screw securely. CABLE CLIP SCREW DRIVE CONTROL CABLE EXTENSION SPRING ENGINE PULLEY IDLER PULLEY TRANS MIS SION PULLEY LESS TEN SION 5/8" MORE TEN SION FIG. 26 16 SERVICE AND ADJUSTMENTS TINE REPLACEMENT (See Figs. 27, 28 and 29) CAUTION: Tines are sharp. Wear gloves or other protection when handling tines. A badly worn tine causes your tiller to work harder and dig more shallow. Most important, worn tines cannot chop and shred organic matter as effectively nor bury it as deeply as good tines. A tine th...