Husqvarna Riding Mower YTH22V46 Parts Manual

The Husqvarna YTH22V46 is a 46-inch riding lawn mower featuring a 22 HP Briggs & Stratton engine, hydrostatic transmission, electric PTO engagement, and a heavy-duty fabricated steel deck. This parts manual provides detailed diagrams, part numbers, and ordering information for maintenance, repair, and replacement of components. Below are key sections covering safety, identification, major assemblies, engine parts, deck components, electrical system, and troubleshooting.

1. Features at a Glance 2. Model Identification 3. Safety Parts & Labels 4. Major Assemblies 5. Engine Components 6. Mower Deck Parts 7. Drive & Transmission 8. Electrical System 9. Ordering Parts 10. Warranty Information 11. Troubleshooting

Features at a Glance

Key components: 22 HP V-Twin Briggs & Stratton engine, 46-inch fabricated steel cutting deck, Hydrostatic transmission, Electric PTO clutch, 12-volt electrical system, Twin lever steering, Comfortable high-back seat.

Feature	Description
Engine	22 HP Briggs & Stratton V-Twin, Model 44N877
Cutting Width	46 inches (116.8 cm)
Transmission	Hydrostatic, infinite forward/reverse speeds
Deck Material	Fabricated 10-gauge steel
Blades	3 high-lift blades, part #532404552
PTO Engagement	Electric clutch
Fuel Capacity	3 gallons (11.4 liters)
Seat	High-back, adjustable
Battery	12V, 280 CCA
Warranty	Limited 2-year consumer / 1-year commercial

Model Identification

Locate the model and serial number plate on the frame under the seat or on the rear fender. Example: YTH22V46 (Model) 1234567890 (Serial). Use these numbers when ordering parts.

Model: YTH22V46 indicates Riding Tractor, 22 HP, V-Twin, 46-inch deck.
Serial: Unique identifier for manufacturing date and batch.
Engine Model: Found on engine shroud (e.g., 44N877).

IMPORTANT! Always provide model and serial numbers when contacting dealers or Husqvarna for parts.

Safety Parts & Labels

Safety labels must be legible and intact. Replace if damaged.

Blade Engagement Warning: Located near PTO switch.
Slope Operation: On dash or fender.
Hot Surface Warning: Near muffler and engine.
Crushing Hazard: Near lift points and deck.
Parts: Replacement labels available (part #s listed in diagrams).

WARNING! Operating without proper safety labels increases risk of injury. Replace damaged labels immediately.

Major Assemblies

Deck Assembly: Includes spindle housings, blades, belt guards, and suspension arms.
Engine Assembly: Complete V-Twin engine with mounting hardware.
Transmission Assembly: Hydrostatic unit with linkage and drive belt.
Frame & Body: Main frame, fenders, hood, and seat plate.
Steering Assembly: Steering wheel, column, tie rods, and spindles.
Electrical Assembly: Wiring harness, switches, battery, and lights.

Engine Components

Briggs & Stratton 44N877 Engine Parts: Air filter (part #492932S), Spark plug (RC12YC), Oil filter (492932S), Fuel filter, Carburetor kit, Muffler, Starter motor, Alternator, Ignition coil.

Maintenance Parts: Oil (SAE 30 or 10W-30), Oil drain tube, Pre-cleaner, Fuel pump, Valve cover gaskets.

Refer to engine manual for detailed torque specs and service intervals.

Mower Deck Parts

46-inch Fabricated Deck (part #532404552): Spindles (532404552), Blades (532404552), Belt (144959), Idler pulleys, Deck wheels, Skid shoes, Lift linkage, PTO cable.

Remove deck: Lower to flat surface, disconnect PTO belt and linkage.
Replace blades: Use blade removal tool; torque to 50-70 ft-lbs.
Belt routing: Follow diagram under deck or in manual.

Tip: Check spindle bearings for play and grease regularly.

Drive & Transmission

Hydrostatic Transmission (Part #532404552): Drive belt (144959), Transmission pulley, Linkage rods, Neutral return spring, Axle keys, Brake pads.

Belt replacement: Release tensioner, route per diagram.
Transmission service: Check fluid level; refill with 20W-50.
Linkage adjustment: Ensure smooth forward/reverse operation.

WARNING! Disconnect spark plug before servicing drive components.

Electrical System

12V System: Battery (U1-280), Starter solenoid, Ignition switch, PTO switch, Safety interlock switches, Wiring harness (part #532404552), Fuses (20A), Headlight bulbs.

Troubleshooting: Use multimeter to test continuity. Common parts: Key switch (532404552), Seat switch, Brake switch.

Ordering Parts

Contact an authorized Husqvarna dealer or visit www.husqvarna.com. Provide model (YTH22V46) and serial number. Use part numbers from diagrams.

CAUTION! Use only genuine Husqvarna parts to maintain warranty and safety.

Warranty Information

Limited Warranty: 2 years for residential use, 1 year for commercial. Covers defects in materials/workmanship. Does not cover normal wear, misuse, or lack of maintenance. Proof of purchase required. For claims, contact dealer or Husqvarna at 1-800-487-5962.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Engine won't start	Dead battery, bad solenoid, safety switch	Charge/replace battery; test solenoid; check seat/brake switches.
Deck won't engage	PTO switch, clutch, blown fuse	Test PTO switch; check clutch gap (0.010-0.015 in); replace fuse.
Poor cut quality	Dull blades, deck level	Sharpen/replace blades; level deck front-to-back and side-to-side.
Loss of power	Clogged air filter, old fuel	Replace air filter; drain old gas; check fuel filter.
Hydrostatic issues	Low fluid, linkage out of adjustment	Check transmission fluid; adjust control linkage per manual.

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