Husqvarna Riding Mower YTH22V46 Parts Manual

The Husqvarna YTH22V46 is a 22 HP V-Twin riding lawn mower with a 46-inch cutting deck, hydrostatic transmission, and electric PTO clutch. This parts manual provides detailed diagrams, part numbers, and ordering information for maintenance and repair. Below are key sections for identification, engine components, cutting deck, drive system, electrical, controls, and troubleshooting.

1. Model Identification & Specifications 2. Engine Components 3. Cutting Deck Assembly 4. Drive & Transmission 5. Electrical System 6. Controls & Operator Station 7. Frame & Body 8. Maintenance Schedule 9. Safety Information 10. Parts Ordering 11. Troubleshooting

Model Identification & Specifications

Locate model and serial number plate on frame under seat. Key specifications:

FeatureDescription
ModelYTH22V46
Engine22 HP Briggs & Stratton V-Twin, OHV
Cutting Width46 inches
TransmissionHydrostatic, single pedal control
Fuel Capacity2.5 gallons
Cutting Height1.5 to 4 inches, 6 positions
Drive SystemRear-wheel drive
WeightApprox. 550 lbs
Wheel Size (Front)15 x 6.00-6
Wheel Size (Rear)20 x 10.00-8

Engine Components

Briggs & Stratton 44N877-0003-G1 engine parts diagram and list.

  1. Cylinder & Piston: Includes piston rings, connecting rod, gaskets.
  2. Crankshaft & Camshaft: With bearings and seals.
  3. Valve Train: Push rods, rocker arms, valves, springs.
  4. Fuel System: Carburetor, fuel pump, fuel lines, air filter.
  5. Ignition System: Spark plugs, ignition coil, flywheel.
  6. Lubrication: Oil filter, dipstick, drain plug.
  7. Cooling: Cooling fins, blower housing, fan.
  8. Exhaust: Muffler, exhaust pipe, gasket.

WARNING! Disconnect spark plug before servicing engine. Use genuine Briggs & Stratton parts.

Cutting Deck Assembly

46-inch stamped steel deck with three blades.

  1. Deck Shell: Main housing, part #532XXXXXX.
  2. Blades: Mulching/blade set, part #532XXXXXX (replace in sets).
  3. Spindles: Blade spindle assemblies with bearings and pulleys.
  4. Belt: Deck drive belt, part #954XXXXX.
  5. Deck Wheels: Anti-scalp wheels and brackets.
  6. Height Adjustment: Lift lever, linkage, and pivot points.
  7. Deck Hangers: Front and rear hanger straps.
  8. Chute & Deflector: Discharge chute and safety deflector.

CAUTION! Ensure blades are balanced and tightened to specification (ft-lbs).

Drive & Transmission

Hydrostatic transmission (Tuff Torq K46) and drive components.

Tip: Check belt tension and alignment regularly. Replace transmission fluid per schedule.

Electrical System

12-volt system with battery, starter, and wiring.

ComponentPart NumberDescription
BatteryU1-30012V, 300 CCA
Starter MotorXXXXXX12V solenoid shift
AlternatorXXXXXXCharging system
Ignition SwitchXXXXXXKey start with positions
PTO SwitchXXXXXXElectric clutch engagement
Safety SwitchesXXXXXXSeat, brake, blade
Fuses20A, 15AIn-line fuse holders
Wiring HarnessXXXXXXMain harness assembly

Controls & Operator Station

Operator area parts and controls.

  1. Seat: High-back seat, seat springs, mounting bracket.
  2. Steering Wheel: Wheel, steering column, tie rods.
  3. Control Panel: Dash panel with ignition, PTO, choke, throttle.
  4. Pedals: Brake pedal, hydrostatic drive pedal.
  5. Levers: Height adjustment lever, parking brake lever.
  6. Guages: Hour meter (if equipped).
  7. Footrests: Floor pan and footrests.

WARNING! Ensure all safety interlock switches function properly before operation.

Frame & Body

Main frame, body panels, and hardware.

CAUTION! Inspect frame for cracks or damage annually.

Maintenance Schedule

Recommended service intervals (based on hours of operation).

ServiceEvery 8 hrsEvery 50 hrsEvery 100 hrsEvery 300 hrs
Check Engine Oil✓
Change Engine Oil✓
Air FilterInspectReplace
Spark Plugs✓
Blade Sharpening✓
Deck Lubrication✓
Transmission Fluid✓
Belt Inspection✓Replace if worn

Safety Information

Critical safety parts and procedures.

  1. Blade Brake Clutch (BBC): Stops blades within 3 seconds when PTO disengaged.
  2. Seat Safety Switch: Stops engine if operator leaves seat with PTO engaged.
  3. Brake Safety Switch: Prevents starting unless brake depressed.
  4. Discharge Deflector: Must be in place during operation.
  5. ROPS: Roll Over Protection Structure (if equipped)—do not remove.

WARNING! Never bypass safety switches. Replace damaged safety components immediately.

Parts Ordering

How to order genuine Husqvarna parts.

Note: Non-genuine parts may void warranty and affect performance.

Troubleshooting

SymptomPossible CauseCorrective Action
Engine won't startDead battery, safety switch, fuelCheck battery charge; ensure brake depressed; check fuel valve and filter.
Loss of powerClogged air filter, old spark plugReplace air filter; inspect/replace spark plug.
Uneven cutDeck not level, dull bladesLevel deck; sharpen or replace blades.
VibrationUnbalanced blade, loose pulleyBalance or replace blade; tighten spindle pulleys.
Drive belt slipsWorn belt, misaligned pulleyReplace belt; check pulley alignment and tension.
Hydrostatic transmission sluggishLow fluid, dirty filterCheck fluid level; change fluid and filter.
PTO won't engageBlown fuse, faulty switchCheck 20A fuse; test PTO switch and clutch.

Service Support: 1-800-487-5962; www.husqvarna.com

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