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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 |