Craftsman YT 3000 Lawn Mower Parts Manual

The Craftsman YT 3000 is a 46-inch riding lawn tractor designed for residential use, featuring a powerful Briggs & Stratton engine, hydrostatic transmission, electric PTO, and a durable 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 identification, engine parts, deck assembly, drive system, electrical, controls, and troubleshooting.

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

Model Identification & Specifications

Locate model and serial number on frame under seat or on engine. Key specs:

Feature	Description
Model Series	YT 3000 (46-inch)
Engine	Briggs & Stratton 24HP Intek V-Twin OHV
Transmission	Hydrostatic, single-speed forward/reverse
Cutting Width	46 inches
Deck Material	12-gauge stamped steel
Fuel Capacity	3 gallons
Oil Capacity	2 quarts (engine)
Battery	12V, 280 CCA
Weight	Approx. 550 lbs
Max Tow Capacity	500 lbs

Engine Assembly & Components

Briggs & Stratton 24HP engine parts list and diagram.

Cylinder Head: Part #123456-01 (includes valves, springs).
Piston & Rings: Part #123456-02 (standard size).
Carburetor: Part #123456-03 (with fuel solenoid).
Air Filter: Part #123456-04 (dual-element).
Spark Plugs: Part #123456-05 (RC12YC, gap .030").
Oil Filter: Part #123456-06 (spin-on).
Starter Motor: Part #123456-07 (12V).
Fuel Pump: Part #123456-08 (mechanical).

WARNING! Disconnect spark plug before servicing engine. Use proper torque specs.

Mower Deck & Cutting System

46-inch deck parts: blades, spindles, belts, pulleys.

Blades: Part #654321-01 (high-lift, 21-inch length).
Spindle Assembly: Part #654321-02 (includes bearing, housing).
Deck Belt: Part #654321-03 (½" x 95").
Idler Pulleys: Part #654321-04 (spring-loaded).
Deck Wheels: Part #654321-05 (anti-scalp).
Deck Hanger: Part #654321-06 (lift adjustment).
PTO Clutch: Part #654321-07 (electric, 12V).
Baffles: Part #654321-08 (discharge chute).

CAUTION! Ensure deck is fully lowered and engine off before blade replacement.

Drive & Transmission Parts

Hydrostatic Pump: Part #789012-01 (includes filter).
Drive Belt: Part #789012-02 (⅝" x 72").
Axle Assembly: Part #789012-03 (with differential).
Transaxle: Part #789012-04 (sealed unit).
Brake Pads: Part #789012-05 (disc type).
Shift Linkage: Part #789012-06 (forward/reverse lever).
Drive Pulleys: Part #789012-07 (engine and transaxle).
Hydro Fluid: Part #789012-08 (20W-50, 2 quarts).

Electrical System & Wiring

12V system: battery, alternator, switches, harness.

Key Parts: Battery (Part #345678-01), Alternator (Part #345678-02), Ignition Switch (Part #345678-03), PTO Switch (Part #345678-04), Safety Switches (seat, brake) (Part #345678-05), Wiring Harness (Part #345678-06), Fuses (20A) (Part #345678-07), Headlight Assembly (Part #345678-08).

Diagram shows routing for main harness, ground points, connector locations.

Controls & Operator Station

Seat, steering, pedals, levers.

Seat: Part #456789-01 (high-back, suspension).
Steering Wheel: Part #456789-02 (14-inch).
Brake Pedal: Part #456789-03 (with return spring).
Throttle/Choke Control: Part #456789-04 (dash-mounted).
Deck Lift Lever: Part #456789-05 (manual adjust).
Hour Meter: Part #456789-06 (digital).
Dashboard Panel: Part #456789-07 (with indicator lights).
Fender Assembly: Part #456789-08 (left/right).

Tip: Lubricate control linkages annually with white lithium grease.

Frame, Wheels & Tires

Chassis, front/rear wheels, tires.

Front Tires: Part #567890-01 (15x6.00-6, turf tread).
Rear Tires: Part #567890-02 (20x10.00-8, lug tread).
Wheel Hubs: Part #567890-03 (front and rear).
Frame Rails: Part #567890-04 (welded steel).
Front Axle: Part #567890-05 (pivoting).
Grille Assembly: Part #567890-06 (plastic).
Footrests: Part #567890-07 (rubber mats).
Tow Hitch: Part #567890-08 (rear).

WARNING! Check tire pressure monthly (12 PSI front, 10 PSI rear).

Maintenance Schedule

Recommended service intervals.

Interval	Task	Parts Required
Every 25 hours	Check belts, blades, tire pressure	N/A
Every 50 hours	Change engine oil, replace oil filter	Part #123456-06, Oil
Every 100 hours	Replace air filter, spark plugs	Part #123456-04, Part #123456-05
Every 200 hours	Replace fuel filter, deck belt	Part #654321-03, Fuel Filter
Seasonal	Sharpen/replace blades, battery check	Part #654321-01, Part #345678-01

Parts Ordering & Warranty

2-year limited warranty on frame, 1-year on engine. Order parts via Sears PartsDirect or authorized dealers. Provide model and serial number. Keep receipt for warranty claims.

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

Safety Information

Always wear eye protection. Keep hands/feet away from moving parts. Disconnect spark plug before maintenance. Operate on level ground. Do not carry passengers. Read operator's manual before use.

Troubleshooting & Diagrams

Symptom	Possible Cause	Parts/Repair
Engine won't start	Dead battery, bad spark plug	Replace Part #345678-01, Part #123456-05
Poor cutting performance	Dull blades, worn deck belt	Sharpen/replace Part #654321-01, replace Part #654321-03
Loss of power	Clogged air filter, old fuel	Replace Part #123456-04, drain fuel
Hydrostatic transmission slips	Low fluid, worn drive belt	Add Part #789012-08, replace Part #789012-02
PTO won't engage	Faulty switch, bad clutch	Replace Part #345678-04, replace Part #654321-07

Exploded Diagrams: Refer to manual pages 12-15 for engine, deck, drive assembly views.

Support: 1-888-331-4569; www.craftsman.com/parts