owners manual for husqvarna yth20k46

The Husqvarna YTH20K46 is a 20-hp Kohler engine riding lawn tractor with a 46-inch cutting deck, hydrostatic transmission, electric PTO engagement, and ergonomic operator controls. Designed for residential lawn care, it features cruise control, adjustable cutting height, comfortable high-back seat, headlights, and a large capacity fuel tank. Below are key sections for safety, features, operation, maintenance, and troubleshooting.

1. Features at a Glance 2. Assembly & Setup 3. Controls and Operation 4. Specifications 5. Maintenance Schedule 6. Engine Care 7. Cutting Deck Maintenance 9. Storage & Winterization 10. Safety Information 11. Warranty & Support 12. Troubleshooting

Features at a Glance

Key components: 20-hp Kohler V-twin engine, 46-inch stamped steel cutting deck, Hydrostatic transmission, Electric PTO clutch, Cruise control, Adjustable seat, Headlights, Hour meter, 3.5-gallon fuel tank.

Feature	Description
Engine	20 HP Kohler 7000 Series V-twin, OHV
Cutting Width	46 inches
Transmission	Hydrostatic, infinite forward/reverse speeds
PTO Engagement	Electric clutch
Cutting Height	Adjustable 1.5 to 4 inches
Seat	High-back, adjustable
Fuel Capacity	3.5 gallons
Headlights	Integrated for low-light operation
Deck Wash Port	For easy cleaning
Hour Meter	Tracks usage for maintenance

Assembly & Setup

Unpack and inspect contents. Assembly required for steering wheel, seat, and cutting deck.

Install steering wheel: Align and secure with provided hardware.
Attach seat: Mount to frame using bolts; adjust position for comfort.
Install cutting deck: Lower deck onto mounting points; secure with pins and belts.
Check tire pressure: Inflate to 14 PSI (front) and 10 PSI (rear).
Add engine oil and fuel: Use SAE 10W-30 oil; fill with unleaded gasoline.

WARNING! Tractor is heavy; use assistance during assembly. Ensure all bolts are tightened to specification.

Controls and Operation

Familiarize yourself with controls before operation.

Ignition: Insert key; turn to start.
Blade engagement: Pull PTO switch to engage blades.
Speed control: Use forward/reverse pedals for hydrostatic drive.
Cutting height: Adjust lever to desired height (1.5-4 inches).
Cruise control: Engage for consistent speed on straight paths.
Parking brake: Set when parked on slopes.

CAUTION! Keep hands and feet away from moving parts. Do not operate on slopes greater than 15 degrees.

Specifications

Engine: 20 HP Kohler 7000 Series V-twin, OHV.
Cutting Deck: 46-inch stamped steel, 3-blade.
Transmission: Hydrostatic, infinite speeds.
Fuel Capacity: 3.5 gallons.
Cutting Height: 1.5 to 4 inches (adjustable in 0.25-inch increments).
Turning Radius: 18 inches.
Weight: Approximately 500 lbs.
Warranty: 2-year limited warranty.

Maintenance Schedule

Regular maintenance ensures longevity and performance.

Interval	Task
Before each use	Check engine oil level; inspect for loose parts
First 5 hours	Change engine oil (break-in)
Every 50 hours	Change engine oil and filter
Every 100 hours	Replace air filter; check spark plugs
Every season	Sharpen blades; lubricate deck spindles
Annually	Replace fuel filter; check battery

Tip: Refer to engine manual for specific Kohler maintenance requirements.

Engine Care

Kohler 20 HP engine requires regular oil changes and air filter maintenance.

Oil change: Drain oil when warm; refill with SAE 10W-30 (approx. 2 quarts).
Air filter: Clean foam pre-cleaner every 25 hours; replace paper element annually.
Spark plug: Check gap (0.030 inches); replace if worn.
Fuel system: Use fresh unleaded gasoline; add stabilizer for storage.

WARNING! Engine is hot after operation; allow to cool before maintenance.

Cutting Deck Maintenance

Keep deck clean and blades sharp for optimal cutting.

Blade sharpening: Remove blades; sharpen to maintain balance.
Deck cleaning: Use deck wash port after each use to prevent buildup.
Belt tension: Check drive belt tension; adjust if slipping.
Spindle lubrication: Grease spindles every 25 hours.

CAUTION! Disconnect spark plug wire before servicing blades.

Storage & Winterization

Prepare tractor for off-season storage.

Fuel: Add stabilizer; run engine for 5 minutes to circulate.
Battery: Disconnect and store in cool, dry place.
Engine: Change oil; remove spark plug and add oil to cylinder.
Deck: Clean thoroughly; apply light oil to prevent rust.

Tip: Store in dry, covered area to prolong life.

Safety Information

Read and follow all safety instructions.

Wear eye protection and sturdy footwear.
Keep bystanders, especially children, away during operation.
Do not operate on steep slopes; use caution when turning.
Never remove grass catcher or discharge chute while engine is running.
Always engage parking brake before dismounting.

DANGER! Rotating blades can cause severe injury; keep hands and feet away.

Warranty & Support

2-year limited warranty for residential use. Warranty covers defects in materials and workmanship. For support, contact Husqvarna at 1-800-487-5962 or visit www.husqvarna.com. Keep proof of purchase for warranty claims.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Engine won't start	Dead battery, empty fuel, clogged filter	Charge battery; add fuel; replace fuel filter.
Poor cutting performance	Dull blades, low engine speed	Sharpen blades; set throttle to full speed.
Excessive vibration	Unbalanced blade, loose parts	Balance or replace blade; tighten bolts.
Hydrostatic transmission sluggish	Low fluid, dirty filter	Check fluid level; replace filter if equipped.
Belt slipping	Worn belt, improper tension	Replace belt; adjust tension per manual.

Reset: For safety switches, ensure seat is occupied and PTO disengaged when starting.

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