Craftsman LT1000 Parts Diagram Manual

The Craftsman LT1000 is a popular riding lawn mower model known for its reliability and ease of maintenance. This manual provides detailed parts diagrams and exploded views to assist with identification, ordering, and assembly of components for the engine, deck, transmission, steering, and electrical systems. Below are key sections for parts overview, diagrams by system, ordering information, and maintenance tips.

1. Parts Overview & Identification 2. Engine System Parts Diagram 3. Mower Deck Assembly Diagram 4. Transmission & Drive System 5. Steering & Control Linkage 6. Electrical System Components 7. Belts, Pulleys & Spindles 8. Fasteners & Hardware 9. Ordering Parts & Exploded Views 10. Assembly & Installation Notes 11. Maintenance Schedule

Parts Overview & Identification

Key components: Engine (Briggs & Stratton or Kohler), Cutting Deck, Transmission, Steering Assembly, Seat, Battery, and Control Panel.

Component Group	Description
Engine Assembly	Includes cylinder, piston, carburetor, air filter, oil filter, spark plug
Mower Deck	Blade, spindle assemblies, belt guards, deck shell, suspension
Transmission	Drive belt, pulleys, axle, differential, hydrostatic pump (if equipped)
Steering System	Steering wheel, gear, tie rods, front axle, wheel hubs
Electrical System	Battery, starter, solenoid, ignition switch, wiring harness
Controls	Brake pedal, clutch/gear lever, PTO engagement lever, throttle
Frame & Body	Frame rails, fenders, seat mount, footrests, hood
Fuel System	Fuel tank, fuel lines, fuel filter, fuel pump, carburetor gaskets
Cooling System	Engine shroud, cooling fins, fan (if applicable)
Safety Components	Blade brake clutch (BBC), seat switch, interlock modules

Engine System Parts Diagram

Exploded view of engine components with part numbers.

Cylinder & Piston Group: Piston rings, connecting rod, crankshaft.
Carburetor Assembly: Float bowl, jets, gaskets, choke linkage.
Ignition System: Spark plug, ignition coil, flywheel, key.
Lubrication: Oil drain plug, dipstick, oil filter.
Air Intake: Air filter housing, pre-cleaner, intake tube.

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

Mower Deck Assembly Diagram

Detailed diagram of cutting deck with blade spindle locations.

Deck Shell: 42-inch or 46-inch stamped steel deck.
Blade Spindles: Spindle housing, bearings, seals, pulley.
Blades: Standard mulching or high-lift blades (part # included).
Belt Path: Deck drive belt routing diagram with idler pulleys.
Deck Lift: Lift linkage, adjustment rods, height adjustment lever.

CAUTION! Ensure deck is properly leveled after reassembly. Check blade balance.

Transmission & Drive System

Transmission Type: Peerless 5-speed manual or Hydrostatic.
Drive Belt: Diagram for proper routing and tension adjustment.
Axle & Differential: Axle shafts, differential gear, housing.
Brake System: Brake disc, caliper, brake rod adjustment.
Pulleys: Drive pulley, idler pulleys, tension spring locations.
Shift Linkage: Gear shift lever, rods, bushings for manual models.
Hydrostatic Linkage: Control arm, trunnion, neutral adjustment.

Steering & Control Linkage

Diagram showing steering gear, tie rods, and control linkages.

Steering Assembly: Steering wheel, column, gearbox, Pittman arm.

Tie Rods: Left and right tie rods with adjustment sleeves.

Front Axle: Axle pivot, spindle arms, wheel bearings.

Control Linkage: Throttle cable, choke cable, PTO engagement rod, brake pedal linkage. Ensure all linkage is properly adjusted and lubricated.

Electrical System Components

Wiring diagram and component locations.

Battery: 12V, group U1 size, terminal connections.
Starting Circuit: Starter motor, solenoid, ignition switch.
Charging System: Alternator/stator, voltage regulator (if equipped).
Safety Interlocks: Seat switch, PTO switch, brake switch wiring.
Lights: Headlight bulb and socket (if equipped).

Tip: Disconnect battery negative terminal before electrical work.

Belts, Pulleys & Spindles

Parts list for drive and deck belts with sizing.

Drive Belt: Part #144959 (example), length and width specifications.
Deck Belt: Part #144958, routing diagram included.
PTO Belt: For electric clutch models (if applicable).
Idler Pulleys: Spring-loaded and fixed idlers with part numbers.
Spindle Assembly: Complete spindle kit includes housing, bearings, seal, pulley.
Tension Springs: Deck lift springs and drive belt tension spring.

WARNING! Always replace belts in sets if worn. Check pulley alignment.

Fasteners & Hardware

List of common bolts, nuts, washers, and pins.

Deck Bolts: Grade 5 or 8 bolts for blade attachment and spindle mounting.

Frame Hardware: Hex bolts, lock nuts, flange bolts for structural connections.

Special Fasteners: Shoulder bolts for deck lift, pivot pins, hairpin clips.

Always use specified grade hardware. Do not substitute with lower grade.

Ordering Parts & Exploded Views

How to use diagrams to order correct parts.

Locate the assembly diagram number (e.g., Fig. 27).
Identify the item number on the exploded view.
Match item number to parts list for part number and description.
Provide model and serial number from mower when ordering.
Common sources: Sears Parts Direct, local Craftsman dealers.

Model Number Location: Under seat or on frame near rear axle.

Assembly & Installation Notes

General guidelines for reassembly.

Component	Installation Note	Torque Spec (if critical)
Blade	Install with cutting edge towards ground; use blade bolt washer.	45-55 ft-lbs
Spindle	Grease bearings before installation; tighten housing bolts evenly.	30-40 ft-lbs
Drive Belt	Follow routing diagram; ensure belt is seated in all pulleys.	N/A
Steering Tie Rod	Adjust for toe-in (1/8" to 1/4" inward at front).	20-25 ft-lbs
Wheel Hub	Torque axle nut to specification; install cotter pin.	See manual

Reset: After service, check all safety interlocks function properly.

Maintenance Schedule

Recommended part replacement intervals.

Every 25 hours: Check blade condition, deck level, tire pressure.
Every 50 hours: Change engine oil, check air filter, grease spindles and fittings.
Every 100 hours: Replace spark plug, check drive belt tension.
Seasonally: Sharpen/replace blades, check battery, clean deck.
As needed: Replace worn pulleys, belts, and damaged hardware.

Service Support: For technical assistance or parts, contact Sears Customer Service at 1-888-331-4569 or visit www.searspartsdirect.com.