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Husqvarna YTH22V46 Troubleshooting
The
Husqvarna YTH22V46 is a two-wheel drive lawn tractor. This model was
manufactured from 2010 to 2018. The components of Husqvarna YTH22V46 driveline
system: Briggs and Stratton 407777 four-cycle vertical-shaft V-twin cylinder
air-cooled gasoline engine and Tuff Torq K46 belt-driven hydrostatic
transmission with infinite forward and reverse gears.
A 40.1 cu.in (656 cc) engine power is 22 hp (17 kw) and maximum torque
is 49.2 Nm (36.5 lb-ft) at 2400 rpm. Max. forward speed - 5.2 mph (8.4
km/h), max. reverse speed - 2.9 mph (4.7 km/h).
The Husqvarna YTH22V46 riding lawn mower is equipped with a manual
steering system, disc brakes, 15x6.00-6 front tires and 20x8.00-8 rear
tires. The wheelbase is 48 inches (1220 mm). The lawn tractor is
compatible with a 46" mid-mount side discharge mower deck with a belt
drive, anti-scalp wheels, and mechanical lifting system.
| Engine Troubleshooting |
| Engine will not start or difficult to start |
| Empty gas tank - Fill it up |
| Wrong fuel grade - Use correct gasoline grade |
| Air in the fuel pipes - Bleed the fuel pipes |
| Spark plug wiring connection is defective - Inspect spark plug wiring connection, change or repair |
| Spark plug is faulty - Spark plug need to be replaced |
| Plugged fuel filter - Install new filter |
| Safety contact for brake pedal defective - Install new part |
| Carburetor is clogged - Clean the carburetor |
| Weak cylinder compression - Inspect cylinder block and change worn parts |
| Incorrectly adjusted or damaged throttle cable - Adjust correctly or change the cable |
| Cooling fins are blocked - Wash or clean as required |
| Ignition system problems - Test ignition and replace failed parts |
| Defective or stuck choke cable - Clean or change the cable |
| Plugged air filter - Change or clean air filter |
| Clogged or damaged fuel pump - Inspect fuel pump and change as required |
| Engine starts but immediately stops |
| Spark plug is damaged - Install new spark plug |
| Carburetor is defective or dirty - Clean or change carburetor |
| Damaged ignition coil - Install a new ignition coil |
| Worn or loose valve springs - Replace valve springs |
| Valves are stuck - Valves must be cleaned |
| Engine oil level is low - Checking oil level and add if necessary |
| Engine overload - Reduce the load |
| Air intake grill is clogged - Need to clean or wash |
| Carburetor fuel mixture is too lean - Make the correct settings |
| Bad ignition timing - Adjust ignition timing correctly |
| Wrong valve setting - Valves needs to be set correctly |
| Engine knocking sound or abnormal noise |
| Low octane gasoline - Use proper gasoline |
| Engine is under excessive load - Load reducing required |
| Insufficient engine oil - Add oil to the engine crankcase |
| Low idle speed adjustment is incorrect - Correct the settings |
| Fuel pump is faulty or clogged - Service or change fuel pump |
| Worn main bearings or crankshaft - Need to install new components |
| Valve clearance is incorrect - Adjust to proper valve clearance |
| Damaged piston rings or cylinder bore - Change faulty components |
| Improperly adjusted or dirty carburetor - Carburetor needs to be adjusted correctly or cleaned |
| Plugged air filter - Service or replace air filter |
| Fuel pump is damaged or dirty - Test fuel pump and change if necessary |
| Ignition failure - Inspect ignition system and change failed components |
| Damaged cylinder-head gasket - Replace the head gasket |
| Stuck or burned valves - Change or clean valves |
| Worn or defective push rod - Push rod should be replaced |
| Cylinder block parts are damaged - Replace defective parts as required |
| Excessive fuel consumption |
| Choke opening is not full - Replace or adjust choke cable |
| Improper adjustment of carburetor main jet - Adjust it correctly |
| Loose or faulty spark plug - Tighten or change the spark plug |
| Valves are stuck, burned, or worn - Replace or clean valves |
| Worn rings, piston, or sleeve - Replace faulty components as required |
| Excessive valve clearance - Need to adjust valve clearance |
| High engine oil consumption |
| Worn seals or gaskets - Replace to repair leaks |
| Valve stems and guides are worn - Valves replacement required |
| Worn or stuck piston rings - Piston rings replacement required |
| Damaged piston or cylinder liner - Inspect piston and liner, fit new components as necessary |
| Breather pipe or hose is clogged - Replace or service |
| Hydrostatic Transmission Troubleshooting |
| HST transmission makes noise |
| Worn or out of adjustment speed control linkage - Adjust or change linkage |
| Transmission overload - The load should be reduced |
| Insufficient oil level or contaminated oil - Add oil to the correct level or fill the transmission with fresh oil |
| Worn or defective parts of the hydrostatic transmission - Check internal transmission parts for damage or wear and replace if required |
| Shift linkage is rusty or worn - Lubricate or replace the linkage |
| Hydrostatic pump is blocked or defective - Repair or change pump |
| Defective or unadjusted transmission shift control components - Adjust properly or change |
| Lack of transmission oil supply - Add oil to the transmission housing |
| Drive pulley is defective or worn - Change pulley |
| Unadjusted or broken shift linkage - Change or adjust linkage |
| Worn or out of adjustment speed control linkage - Adjust or replace linkage |
| Transmission seals or gaskets are broken - Replace gaskets or seals |
| Leaking final drive shaft - Change shaft seals |
| Cracked transmission case - Replace defective case or transmission assembly |
| Mower Deck Troubleshooting |
| Mower vibrates too much |
| Clogged or damaged mower drive sheave - Replace or clean sheave |
| Drive belt is loose or defective - Change belt or adjust belt tension |
| Not balanced or bent mower blades - Balance or replace blades |
| Loose blade mounting bolts - Bolts should be tightened |
| Discharge chute keeps clogging |
| Fast ground speed - Select a lower speed |
| Tall grass - Must be set to low cutting height |
| Engine rpm is too low - Open throttle fully |
| Mower deck set to low cutting - Adjust mower to higher cutting height |
| Mower drive belt installation is improper - Drive belt must be installed correctly |
| Deck clogged with grass clippings - Need to clean the mower deck |
| Blades are not sharp - Need a blade sharpening |
| Worn or damaged blades - Replace the blades |
| Fast ground speed - Operate at slower speed |
| Cutting level is too low - Use a higher cutting height |
| Grass bag is overfilled - Remove grass from bag |
| Blades are scalping the grass |
| Bumpy or unleveled lawn - Lawn needs to be leveled |
| Mower cuts too low - Use a higher cutting height |
| High ground speed - Select a lower speed |
| Mower deck is not leveled properly - Adjust mower deck level properly |
| Worn or bent blades - Change the blades |
| Incorrect tire pressure - Inflate tires as required |
| Low tire pressure - Need to inflate tires |
| Deck is not leveled correctly - Level the deck correctly |
| Excessive blade dullness - Sharpen the blades |
| Blades are defective or worn - Blades need to be replaced |
| Clogged mower deck - Check cutting deck and clean as necessary |
| Damaged mower deck housing - Repair or replace the deck |
| Loose or defective mower spindle - Change or repair the spindle |
| Electrical Troubleshooting |
| Battery will not charge |
| Electrical wire connections are loose or corroded - Tighten or service cable connections |
| Electrical terminal connectors are defective - Change terminal connectors |
| Battery is worn - Battery replacement required |
| Low battery capacity - Battery is drained, charge it |
| Battery won’t hold charge - Service charging system or change battery |
| Corroded battery terminals or disconnected wires - Connect wires correctly or change terminals |
| Battery is drained or defective - Recharge or change battery |
| Battery wires are disconnected or incorrectly connected - Check wires and connect correctly |
| Battery capacity is low - Charge the battery |
| Spark plug dirty or improperly gapped - Clean, gap or replace spark plug |
| Starter motor or solenoid is damaged - Repair starter or replace solenoid |
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| Lawn and Garden Tractors Technical Specs |
