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Hersteller: Briggs & Stratton Dateigröße: 1.36 mb Dateiname: Unterrichtssprache:

Remove the key. To prevent accidental starting, disconnect the spark plug wire and fasten away from the plug. Problem Possible Cause Remedy Engine fails to start. Key is OFF. Push key in to the ON position. Failure to prime cold engine Press primer button twice and restart. Fuel valve is in CLOSED position. Turn valve to OPEN position. Out of fuel. Fill fuel tank. Choke OFF - cold engine. Turn choke to ON, set throttle to FAST. Engine flooded. Turn choke to OFF; try starting. No spark. Check gap. Gap plug, clean electrode, or replace plug as necessary. Water in fuel, or old fuel. Drain tank. (Dispose of fuel at an authorized hazardous waste facility.) Fill with fresh fuel. Engine starts hard or runs poorly. Fuel mixture too rich. Move choke to OFF position. Carburetor adjusted incorrectly. See your dealer for adjustments. Spark plug faulty, fouled, or gapped improperly. Clean and gap, or replace. Fuel cap vent is blocked. Clear vent. Scraper bar does not cleanhard surface. Skid shoes improperly adjusted. RAISE skid shoes (this lowers the scraper bar). Skid shoes improperly adjusted. LOWER skid shoes (this raises the scraper bar.) Auger does not rotate. Auger control not engaged. Engage auger control. Foreign matter blocking auger. STOP engine and REMOVE the key. DISCONNECT the spark plug wire. Clear auger using clean-out tool. See warning in SAFETY RULES. Auger drive clutch rod slack. Tighten to remove slack. See auger clutch rod adjustment. Auger drive belt slipping. Check auger drive belt adjustment. Broken belt. Replace belt. Shear pin broken. Replace shear pin. 23 Troubleshooting Problem Possible Cause Remedy Auger rotates, but snow is not- thrown far enough. Chute deflector too low. Adjust deflector as necessary. Engine speed too slow. Set speed to full throttle. Ground speed too fast. Use slower speed selector setting. Snowthrower discharge chute clogged. STOP engine and REMOVE the key DISCONNECT the spark plug wire. Clear auger using clean-out tool. See warning in SAFETY RULES. Auger belt loose or worn. Check auger drive belt adjustment Poor traction. Tires slipping. Check tire pressure and tread. Auger does not stop when auger lever is released. Free-Hand™ control is ACTIVE. Release both auger engage control and Free-Hand™ control to stop auger. Auger clutch rod too tight or bent. Loosen or straighten clutch rod. Auger drive belt out of adjustment. Adjust auger belt. Auger belt guide out of adjustment. Adjust auger belt guide. Snowthrower does not stop- when drive lever is released. Traction drive clutch rod bent or too tight. Loosen rod to remove slack or replace. See adjustment procedure. Traction drive clutch rod loose. Tighten to remove slack. See adjustment procedure. Drive belt loose, broken, or stretched. Replace drive belt. Drive roller chain damaged. Replace chain. Traction lock pins in free- Wheeling position (OUTER hole). Change traction lock pins to INNER hole to engage traction drive. Friction disc worn. Replace disc (see your dealer). Discharge control is difficult to operate. Gearing needs lubrication Oil or grease as required. Worm gear not adjusted properly. Adjust worm gear. See adjustment procedure. Control rod gears misaligned. Adjust gear bracket. See adjustment procedure. Snowthrower veers to one side. Tire pressure not equal. Check tire pressure. One wheel is set in free-wheeling mode. (Traction Lock Pin is in the OUTER hole). Make certain the left traction lock pin is in the INNER holes (to engage traction drive). Excessive vibration. Loose parts or damaged auger. STOP engine and REMOVE the key. DISCONNECT the spark plug wire. Tighten all hardware. Replace auger if necessary. If vibration continues, see your dealer. Drive fails to move snowthrower at slow speeds. Traction drive out of adjustment. Readjust drive, or shift speed selector setting up one speed faster. Speed selector difficult to move or frozen in place. Hex shaft needs lubrication. Lubricate hex shaft with 5W-50 synthetic motor oil (see Maintenance). 24 Adjustments SPEED SELECTOR ADJUSTMENT 1. Loosen the two nuts (C, Figure 19). 2. Place the shift lever in 5th gear. 3. Push the lower rod into the housing and tighten the two nuts (C). Do not lift up or down on rods while tightening. Make sure the shoulders of the carriage bolts (B) are in the slots. 4. Always check traction drive tension and auger drive tension after adjusting speed selector. AUGER DRIVE TENSION WARNING Do not over-tighten, as this may lift the lever and cause auger drive to be engaged without depressing the Auger Control. 1. With the drive lever released, the hook (B, Figure 20) should barely touch the lever (C) without raising it. There can be a maximum 1/32” clearance as shown. 2. To adjust, loosen nut (D, Figure 22) by holding the adjusting flats (A)and turning nut (D). Turn adjustment flats and hold screw. The adjustment screw is a phillips screw and the head can be held or turned by inserting a screwdriver through the spring. 3. Hold adjusti...

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